From: Michael Vrable <mvrable@cs.ucsd.edu>
Date: Tue, 4 May 2010 19:22:51 +0000 (-0700)
Subject: Directory reorganization.
X-Git-Url: https://git.vrable.net/?a=commitdiff_plain;h=4a16bafc74f36e1314a722544612ad7ac6a6cd05;p=bluesky.git

Directory reorganization.
---

diff --git a/.gitignore b/.gitignore
index b73b5a5..c44556a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,5 +14,5 @@ microbench/readbench
 microbench/statbench
 nfs3/nfsproxy
 nfs3/synclient
-s3bench/s3readbench
-s3bench/s3readlatency
+cloudbench/s3readbench
+cloudbench/s3readlatency
diff --git a/azure/azure.py b/azure/azure.py
deleted file mode 100755
index 0d19ed4..0000000
--- a/azure/azure.py
+++ /dev/null
@@ -1,105 +0,0 @@
-#!/usr/bin/python2.6
-
-"""A simple test API for accessing Windows Azure blob storage.
-
-Parts of the code are modeled after boto (a library for accessing Amazon Web
-Services), but this code is far less general and is meant only as a
-proof-of-concept."""
-
-import base64, hashlib, hmac, httplib, os, time
-
-# The version of the Azure API we implement; sent in the x-ms-version header.
-API_VERSION = '2009-09-19'
-
-def uri_decode(s):
-    # TODO
-    return s
-
-def add_auth_headers(headers, method, path):
-    header_order = ['Content-Encoding', 'Content-Language', 'Content-Length',
-                    'Content-MD5', 'Content-Type', 'Date', 'If-Modified-Since',
-                    'If-Match', 'If-None-Match', 'If-Unmodified-Since',
-                    'Range']
-
-    if not headers.has_key('Date'):
-        headers['Date'] = time.strftime("%a, %d %b %Y %H:%M:%S GMT",
-                                        time.gmtime())
-    if not headers.has_key('x-ms-version'):
-        headers['x-ms-version'] = API_VERSION
-
-    StringToSign = method + "\n"
-    for h in header_order:
-        if h in headers:
-            StringToSign += headers[h] + "\n"
-        else:
-            StringToSign += "\n"
-
-    # Add Canonicalized Headers
-    canonized = []
-    for (k, v) in headers.items():
-        k = k.lower()
-        if k.startswith('x-ms-'):
-            canonized.append((k, v))
-    canonized.sort()
-    for (k, v) in canonized:
-        StringToSign += "%s:%s\n" % (k, v)
-
-    # Add CanonicalizedHeaders Resource
-    account_name = os.environ['AZURE_ACCOUNT_NAME']
-    account_name = 'bluesky'
-    resource = "/" + account_name
-    if '?' not in path:
-        resource += path
-    else:
-        (path, params) = path.split('?', 1)
-        params = [p.split('=') for p in params.split("&")]
-        params = dict((k.lower(), uri_decode(v)) for (k, v) in params)
-        resource += path
-        for k in sorted(params):
-            resource += "\n%s:%s" % (k, params[k])
-    StringToSign += resource
-
-    # print "String to sign:", repr(StringToSign)
-
-    secret_key = os.environ['AZURE_SECRET_KEY']
-    secret_key = base64.b64decode(secret_key)
-    h = hmac.new(secret_key, digestmod=hashlib.sha256)
-    h.update(StringToSign)
-
-    signature = base64.b64encode(h.digest())
-    headers['Authorization'] = "SharedKey %s:%s" % (account_name, signature)
-
-class Connection:
-    def __init__(self):
-        self.host = os.environ['AZURE_ACCOUNT_NAME'] + ".blob.core.windows.net"
-        self.conn = httplib.HTTPConnection(self.host)
-
-    def make_request(self, path, method='GET', body="", headers={}):
-        headers = headers.copy()
-        headers['Content-Length'] = str(len(body))
-        if len(body) > 0:
-            headers['Content-MD5'] \
-                = base64.b64encode(hashlib.md5(body).digest())
-        add_auth_headers(headers, method, path)
-
-        # req = "%s %s HTTP/1.1\r\nHost: %s\r\n" % (method, path, host)
-        # req = req + ''.join("%s: %s\r\n" % h for h in headers.items()) + "\r\n"
-        # print req
-
-        self.conn.request(method, path, body, headers)
-        response = self.conn.getresponse()
-        print "Response:", response.status
-        print "Headers:", response.getheaders()
-        body = response.read()
-
-if __name__ == '__main__':
-    # generate_request("/?comp=list")
-    buf = 'A' * 1048576
-    conn = Connection()
-    for i in range(16):
-        conn.make_request('/benchmark/file-1M-' + str(i), 'PUT', buf,
-                          {'x-ms-blob-type': 'BlockBlob'})
-
-    conn = Connection()
-    for i in range(16):
-        conn.make_request('/benchmark/file-1M-' + str(i), 'GET')
diff --git a/cloudbench/CMakeLists.txt b/cloudbench/CMakeLists.txt
new file mode 100644
index 0000000..9cb9813
--- /dev/null
+++ b/cloudbench/CMakeLists.txt
@@ -0,0 +1,11 @@
+include_directories("${LIBS3_BUILD_DIR}/include")
+link_directories("${LIBS3_BUILD_DIR}/lib")
+
+add_executable(s3readbench readbench.c)
+add_executable(s3readlatency readlatency.c)
+
+set(CMAKE_C_FLAGS "-Wall -std=gnu99 ${CMAKE_C_FLAGS}")
+set(INSTALL_RPATH_USE_LINK_PATH 1)
+
+target_link_libraries(s3readbench pthread s3)
+target_link_libraries(s3readlatency pthread s3)
diff --git a/cloudbench/azure.py b/cloudbench/azure.py
new file mode 100755
index 0000000..0d19ed4
--- /dev/null
+++ b/cloudbench/azure.py
@@ -0,0 +1,105 @@
+#!/usr/bin/python2.6
+
+"""A simple test API for accessing Windows Azure blob storage.
+
+Parts of the code are modeled after boto (a library for accessing Amazon Web
+Services), but this code is far less general and is meant only as a
+proof-of-concept."""
+
+import base64, hashlib, hmac, httplib, os, time
+
+# The version of the Azure API we implement; sent in the x-ms-version header.
+API_VERSION = '2009-09-19'
+
+def uri_decode(s):
+    # TODO
+    return s
+
+def add_auth_headers(headers, method, path):
+    header_order = ['Content-Encoding', 'Content-Language', 'Content-Length',
+                    'Content-MD5', 'Content-Type', 'Date', 'If-Modified-Since',
+                    'If-Match', 'If-None-Match', 'If-Unmodified-Since',
+                    'Range']
+
+    if not headers.has_key('Date'):
+        headers['Date'] = time.strftime("%a, %d %b %Y %H:%M:%S GMT",
+                                        time.gmtime())
+    if not headers.has_key('x-ms-version'):
+        headers['x-ms-version'] = API_VERSION
+
+    StringToSign = method + "\n"
+    for h in header_order:
+        if h in headers:
+            StringToSign += headers[h] + "\n"
+        else:
+            StringToSign += "\n"
+
+    # Add Canonicalized Headers
+    canonized = []
+    for (k, v) in headers.items():
+        k = k.lower()
+        if k.startswith('x-ms-'):
+            canonized.append((k, v))
+    canonized.sort()
+    for (k, v) in canonized:
+        StringToSign += "%s:%s\n" % (k, v)
+
+    # Add CanonicalizedHeaders Resource
+    account_name = os.environ['AZURE_ACCOUNT_NAME']
+    account_name = 'bluesky'
+    resource = "/" + account_name
+    if '?' not in path:
+        resource += path
+    else:
+        (path, params) = path.split('?', 1)
+        params = [p.split('=') for p in params.split("&")]
+        params = dict((k.lower(), uri_decode(v)) for (k, v) in params)
+        resource += path
+        for k in sorted(params):
+            resource += "\n%s:%s" % (k, params[k])
+    StringToSign += resource
+
+    # print "String to sign:", repr(StringToSign)
+
+    secret_key = os.environ['AZURE_SECRET_KEY']
+    secret_key = base64.b64decode(secret_key)
+    h = hmac.new(secret_key, digestmod=hashlib.sha256)
+    h.update(StringToSign)
+
+    signature = base64.b64encode(h.digest())
+    headers['Authorization'] = "SharedKey %s:%s" % (account_name, signature)
+
+class Connection:
+    def __init__(self):
+        self.host = os.environ['AZURE_ACCOUNT_NAME'] + ".blob.core.windows.net"
+        self.conn = httplib.HTTPConnection(self.host)
+
+    def make_request(self, path, method='GET', body="", headers={}):
+        headers = headers.copy()
+        headers['Content-Length'] = str(len(body))
+        if len(body) > 0:
+            headers['Content-MD5'] \
+                = base64.b64encode(hashlib.md5(body).digest())
+        add_auth_headers(headers, method, path)
+
+        # req = "%s %s HTTP/1.1\r\nHost: %s\r\n" % (method, path, host)
+        # req = req + ''.join("%s: %s\r\n" % h for h in headers.items()) + "\r\n"
+        # print req
+
+        self.conn.request(method, path, body, headers)
+        response = self.conn.getresponse()
+        print "Response:", response.status
+        print "Headers:", response.getheaders()
+        body = response.read()
+
+if __name__ == '__main__':
+    # generate_request("/?comp=list")
+    buf = 'A' * 1048576
+    conn = Connection()
+    for i in range(16):
+        conn.make_request('/benchmark/file-1M-' + str(i), 'PUT', buf,
+                          {'x-ms-blob-type': 'BlockBlob'})
+
+    conn = Connection()
+    for i in range(16):
+        conn.make_request('/benchmark/file-1M-' + str(i), 'GET')
diff --git a/cloudbench/cloudtest.py b/cloudbench/cloudtest.py
new file mode 100755
index 0000000..0755688
--- /dev/null
+++ b/cloudbench/cloudtest.py
@@ -0,0 +1,73 @@
+#!/usr/bin/python
+#
+# Run a series of simple test requests against S3 for gathering some basic
+# performance numbers.
+
+import boto, time
+from boto.s3.connection import SubdomainCallingFormat
+from boto.s3.key import Key
+import azure
+
+BUCKET_NAME = 'mvrable-benchmark'
+SIZES = [64, 4096, 32 << 10, 256 << 10, 1 << 20, 4 << 20, 32 << 20]
+
+class S3TestConnection:
+    def __init__(self):
+        self.conn = boto.connect_s3(is_secure=False,
+                                    calling_format=SubdomainCallingFormat())
+        self.bucket = self.conn.get_bucket(BUCKET_NAME)
+
+    def put_object(self, name, size):
+        buf = 'A' * size
+        k = Key(self.bucket, name)
+        start_time = time.time()
+        k.set_contents_from_string(buf)
+        print "%s: %f" % (name, time.time() - start_time)
+
+    def get_object(self, name, size):
+        k = Key(self.bucket, name)
+        start_time = time.time()
+        buf = k.get_contents_as_string()
+        print "%s: %f" % (name, time.time() - start_time)
+
+class AzureTestConnection:
+    def __init__(self):
+        self.conn = azure.Connection()
+
+    def put_object(self, name, size):
+        buf = 'A' * size
+        start_time = time.time()
+        self.conn.make_request('/benchmark/' + name, 'PUT', buf,
+                               {'x-ms-blob-type': 'BlockBlob'})
+        print "%s: %f" % (name, time.time() - start_time)
+
+    def get_object(self, name, size):
+        start_time = time.time()
+        self.conn.make_request('/benchmark/' + name, 'GET')
+        print "%s: %f" % (name, time.time() - start_time)
+
+def run_test():
+    print "==== S3 ===="
+    c = S3TestConnection()
+    for repeat in range(4):
+        for size in SIZES:
+            c.put_object('file-%d-%d' % (size, repeat), size)
+
+    c = S3TestConnection()
+    for repeat in range(4):
+        for size in SIZES:
+            c.get_object('file-%d-%d' % (size, repeat), size)
+
+    print "==== AZURE ===="
+    c = AzureTestConnection()
+    for repeat in range(4):
+        for size in SIZES:
+            c.put_object('file-%d-%d' % (size, repeat), size)
+
+    c = AzureTestConnection()
+    for repeat in range(4):
+        for size in SIZES:
+            c.get_object('file-%d-%d' % (size, repeat), size)
+
+if __name__ == '__main__':
+    run_test()
diff --git a/cloudbench/readbench.c b/cloudbench/readbench.c
new file mode 100644
index 0000000..277e1f3
--- /dev/null
+++ b/cloudbench/readbench.c
@@ -0,0 +1,277 @@
+/* Simple benchmark for Amazon S3: measures download speeds for
+ * differently-sized objects and with a variable number of parallel
+ * connections. */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <pthread.h>
+#include <time.h>
+#include <unistd.h>
+#include <math.h>
+
+#include "libs3.h"
+
+FILE *statsfile;
+
+S3BucketContext bucket;
+
+struct thread_state {
+    pthread_t thread;
+    int thread_num;
+    long long timestamp;
+
+    // Time when first bytes of the response were received
+    long long first_byte_timestamp;
+
+    // Statistics for computing mean and standard deviation
+    int n;
+    size_t bytes_sent;
+    double sum_x, sum_x2;
+
+    double sum_f;
+};
+
+struct callback_state {
+    struct thread_state *ts;
+    size_t bytes_remaining;
+};
+
+#define MAX_THREADS 128
+struct thread_state threads[MAX_THREADS];
+
+int experiment_threads, experiment_size, experiment_objects;
+
+pthread_mutex_t barrier_mutex;
+pthread_cond_t barrier_cond;
+int barrier_val;
+
+enum phase { LAUNCH, MEASURE, TERMINATE };
+volatile enum phase test_phase;
+
+void barrier_signal()
+{
+    pthread_mutex_lock(&barrier_mutex);
+    barrier_val--;
+    printf("Barrier: %d left\n", barrier_val);
+    if (barrier_val == 0)
+        pthread_cond_signal(&barrier_cond);
+    pthread_mutex_unlock(&barrier_mutex);
+}
+
+long long get_ns()
+{
+    struct timespec ts;
+    clock_gettime(CLOCK_MONOTONIC, &ts);
+
+    return ts.tv_sec * 1000000000LL + ts.tv_nsec;
+}
+
+static S3Status data_callback(int bufferSize, const char *buffer,
+                              void *callbackData)
+{
+    struct callback_state *state = (struct callback_state *)callbackData;
+    state->bytes_remaining -= bufferSize;
+    if (state->ts->first_byte_timestamp == 0)
+        state->ts->first_byte_timestamp = get_ns();
+    return S3StatusOK;
+}
+
+static S3Status properties_callback(const S3ResponseProperties *properties,
+                                     void *callbackData)
+{
+    return S3StatusOK;
+}
+
+static void complete_callback(S3Status status,
+                              const S3ErrorDetails *errorDetails,
+                              void *callbackData)
+{
+}
+
+static void do_get(const char *key, size_t bytes, struct thread_state *ts)
+{
+    struct callback_state state;
+    struct S3GetObjectHandler handler;
+
+    state.bytes_remaining = bytes;
+    state.ts = ts;
+    handler.responseHandler.propertiesCallback = properties_callback;
+    handler.responseHandler.completeCallback = complete_callback;
+    handler.getObjectDataCallback = data_callback;
+
+    S3_get_object(&bucket, key, NULL, 0, 0, NULL, &handler, &state);
+}
+
+void *benchmark_thread(void *arg)
+{
+    struct thread_state *ts = (struct thread_state *)arg;
+    char namebuf[64];
+    int i = 0;
+    int stage = 0;
+    int measuring = 0;
+
+    ts->n = 0;
+    ts->sum_x = ts->sum_x2 = ts->sum_f = 0.0;
+    ts->bytes_sent = 0;
+
+    ts->timestamp = get_ns();
+    while (test_phase != TERMINATE) {
+        int object = random() % experiment_objects;
+        sprintf(namebuf, "file-%d-%d", experiment_size, object);
+        ts->first_byte_timestamp = 0;
+        do_get(namebuf, experiment_size, ts);
+        long long timestamp = get_ns();
+        long long elapsed = timestamp - ts->timestamp;
+
+        printf("Elapsed[%d-%d]: %lld ns\n", ts->thread_num, i, elapsed);
+        printf("    first data after: %lld ns\n",
+               ts->first_byte_timestamp - ts->timestamp);
+        if (measuring && test_phase == MEASURE) {
+            double e = elapsed / 1e9;
+            double f = (ts->first_byte_timestamp - ts->timestamp) / 1e9;
+            ts->n++;
+            ts->sum_x += e;
+            ts->sum_x2 += e * e;
+            ts->sum_f += f;
+            ts->bytes_sent += experiment_size;
+        }
+
+        i++;
+        if (stage == 0 && i > 2) {
+            barrier_signal();
+            stage = 1;
+        } else if (stage == 1 && ts->n >= 2) {
+            barrier_signal();
+            stage = 2;
+        }
+
+        ts->timestamp = timestamp;
+        if (test_phase == MEASURE)
+            measuring = 1;
+    }
+
+    return NULL;
+}
+
+void launch_thread(int n)
+{
+    threads[n].thread_num = n;
+    if (pthread_create(&threads[n].thread, NULL, benchmark_thread, &threads[n]) != 0) {
+        fprintf(stderr, "Error launching thread!\n");
+        exit(1);
+    }
+}
+
+void wait_thread(int n)
+{
+    void *result;
+    pthread_join(threads[n].thread, &result);
+}
+
+void launch_test(int thread_count)
+{
+    int i;
+    long long start_time = get_ns();
+
+    test_phase = LAUNCH;
+    barrier_val = thread_count;
+    assert(thread_count <= MAX_THREADS);
+
+    printf("Launching...\n");
+
+    for (i = 0; i < thread_count; i++)
+        launch_thread(i);
+
+    /* Wait until all threads are ready. */
+    pthread_mutex_lock(&barrier_mutex);
+    while (barrier_val > 0) {
+        pthread_cond_wait(&barrier_cond, &barrier_mutex);
+    }
+    pthread_mutex_unlock(&barrier_mutex);
+
+    printf("Measuring...\n");
+    barrier_val = thread_count;
+    test_phase = MEASURE;
+
+    /* Ensure all threads have measured some activity, then a bit more. */
+    pthread_mutex_lock(&barrier_mutex);
+    while (barrier_val > 0) {
+        pthread_cond_wait(&barrier_cond, &barrier_mutex);
+    }
+    pthread_mutex_unlock(&barrier_mutex);
+    printf("Data in from all threads...\n");
+    sleep(5);
+
+    printf("Terminating...\n");
+    test_phase = TERMINATE;
+
+    for (i = 0; i < thread_count; i++)
+        wait_thread(i);
+
+    int n = 0;
+    double sum_x = 0.0, sum_x2 = 0.0, sum_f = 0.0;
+    double bandwidth = 0.0;
+    for (i = 0; i < thread_count; i++) {
+        n += threads[i].n;
+        sum_x += threads[i].sum_x;
+        sum_x2 += threads[i].sum_x2;
+        sum_f += threads[i].sum_f;
+        bandwidth += threads[i].bytes_sent / threads[i].sum_x;
+    }
+
+    double elapsed = (get_ns() - start_time) / 1e9;
+    printf("*** %d threads, %d byte objects\n",
+           experiment_threads, experiment_size);
+    printf("Elapsed: %f s\n", elapsed);
+    printf("Data points: %d\n", n);
+    double mx = sum_x / n;
+    double sx = sqrt((sum_x2 - 2*sum_x*mx + n*mx*mx) / (n - 1));
+    printf("Time: %f ± %f s\n", mx, sx);
+    printf("Latency to first byte: %f\n", sum_f / n);
+    printf("Bandwidth: %f B/s\n", bandwidth);
+
+    fprintf(statsfile, "%d\t%d\t%f\t%d\t%f\t%f\t%f\n",
+            experiment_threads, experiment_size, elapsed, n,
+            mx, sx, bandwidth);
+
+    printf("Finished.\n");
+}
+
+int main(int argc, char *argv[])
+{
+    statsfile = fopen("readbench.data", "a");
+    if (statsfile == NULL) {
+        perror("open stats file");
+        return 1;
+    }
+
+    S3_initialize(NULL, S3_INIT_ALL);
+
+    bucket.bucketName = "mvrable-benchmark";
+    bucket.protocol = S3ProtocolHTTP;
+    bucket.uriStyle = S3UriStylePath;
+    bucket.accessKeyId = getenv("AWS_ACCESS_KEY_ID");
+    bucket.secretAccessKey = getenv("AWS_SECRET_ACCESS_KEY");
+
+    pthread_mutex_init(&barrier_mutex, NULL);
+    pthread_cond_init(&barrier_cond, NULL);
+
+    if (argc < 4) {
+        fprintf(stderr, "Usage: %s <threads> <size> <object-count>\n", argv[0]);
+        return 1;
+    }
+
+    experiment_threads = atoi(argv[1]);
+    experiment_size = atoi(argv[2]);
+    experiment_objects = atoi(argv[3]);
+    assert(experiment_objects > 0);
+    launch_test(experiment_threads);
+
+    printf("Done.\n");
+    fclose(statsfile);
+
+    return 0;
+}
diff --git a/cloudbench/readlatency.c b/cloudbench/readlatency.c
new file mode 100644
index 0000000..5a08a64
--- /dev/null
+++ b/cloudbench/readlatency.c
@@ -0,0 +1,230 @@
+/* Simple benchmark for Amazon S3: measures download speeds for
+ * differently-sized objects and with a variable number of parallel
+ * connections. */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <pthread.h>
+#include <time.h>
+#include <unistd.h>
+#include <math.h>
+
+#include "libs3.h"
+
+FILE *statsfile;
+
+S3BucketContext bucket;
+
+struct thread_state {
+    pthread_t thread;
+    int thread_num;
+    long long timestamp;
+
+    // Time when first bytes of the response were received
+    long long first_byte_timestamp;
+
+    // Statistics for computing mean and standard deviation
+    int n;
+    size_t bytes_sent;
+    double sum_x, sum_x2;
+
+    double sum_f;
+};
+
+struct callback_state {
+    struct thread_state *ts;
+    size_t bytes_remaining;
+};
+
+#define MAX_THREADS 1024
+struct thread_state threads[MAX_THREADS];
+
+int experiment_threads, experiment_size, experiment_objects;
+
+pthread_mutex_t barrier_mutex;
+pthread_cond_t barrier_cond;
+int barrier_val;
+
+pthread_mutex_t wait_mutex;
+pthread_cond_t wait_cond;
+int wait_val = 0;
+
+enum phase { LAUNCH, MEASURE, TERMINATE };
+volatile enum phase test_phase;
+
+void barrier_signal()
+{
+    pthread_mutex_lock(&barrier_mutex);
+    barrier_val--;
+    printf("Barrier: %d left\n", barrier_val);
+    if (barrier_val == 0)
+        pthread_cond_signal(&barrier_cond);
+    pthread_mutex_unlock(&barrier_mutex);
+}
+
+long long get_ns()
+{
+    struct timespec ts;
+    clock_gettime(CLOCK_MONOTONIC, &ts);
+
+    return ts.tv_sec * 1000000000LL + ts.tv_nsec;
+}
+
+static S3Status data_callback(int bufferSize, const char *buffer,
+                              void *callbackData)
+{
+    struct callback_state *state = (struct callback_state *)callbackData;
+    state->bytes_remaining -= bufferSize;
+    if (state->ts->first_byte_timestamp == 0)
+        state->ts->first_byte_timestamp = get_ns();
+    return S3StatusOK;
+}
+
+static S3Status properties_callback(const S3ResponseProperties *properties,
+                                     void *callbackData)
+{
+    return S3StatusOK;
+}
+
+static void complete_callback(S3Status status,
+                              const S3ErrorDetails *errorDetails,
+                              void *callbackData)
+{
+}
+
+static void do_get(const char *key, size_t bytes, struct thread_state *ts)
+{
+    struct callback_state state;
+    struct S3GetObjectHandler handler;
+
+    state.bytes_remaining = bytes;
+    state.ts = ts;
+    handler.responseHandler.propertiesCallback = properties_callback;
+    handler.responseHandler.completeCallback = complete_callback;
+    handler.getObjectDataCallback = data_callback;
+
+    S3_get_object(&bucket, key, NULL, 0, 0, NULL, &handler, &state);
+}
+
+void *benchmark_thread(void *arg)
+{
+    struct thread_state *ts = (struct thread_state *)arg;
+    char namebuf[64];
+
+    printf("Warming up...\n");
+    do_get("file-1048576-0", 0, ts);
+    printf("Ready.\n");
+    barrier_signal();
+
+    pthread_mutex_lock(&wait_mutex);
+    while (wait_val == 0)
+        pthread_cond_wait(&wait_cond, &wait_mutex);
+    pthread_mutex_unlock(&wait_mutex);
+
+    ts->timestamp = get_ns();
+    sprintf(namebuf, "file-%d-%d", experiment_size, ts->thread_num);
+    ts->first_byte_timestamp = 0;
+    do_get(namebuf, experiment_size, ts);
+    long long timestamp = get_ns();
+    long long elapsed = timestamp - ts->timestamp;
+
+    barrier_signal();
+
+    printf("Thread %d: %f elapsed\n", ts->thread_num, elapsed / 1e9);
+
+    return NULL;
+}
+
+void launch_thread(int n)
+{
+    threads[n].thread_num = n;
+    if (pthread_create(&threads[n].thread, NULL, benchmark_thread, &threads[n]) != 0) {
+        fprintf(stderr, "Error launching thread!\n");
+        exit(1);
+    }
+}
+
+void wait_thread(int n)
+{
+    void *result;
+    pthread_join(threads[n].thread, &result);
+}
+
+void launch_test(int thread_count)
+{
+    int i;
+
+    barrier_val = thread_count;
+    assert(thread_count <= MAX_THREADS);
+
+    for (i = 0; i < thread_count; i++)
+        launch_thread(i);
+
+    /* Wait until all threads are ready. */
+    pthread_mutex_lock(&barrier_mutex);
+    while (barrier_val > 0) {
+        pthread_cond_wait(&barrier_cond, &barrier_mutex);
+    }
+    pthread_mutex_unlock(&barrier_mutex);
+
+    sleep(2);
+    barrier_val = thread_count;
+    pthread_mutex_lock(&wait_mutex);
+    printf("Launching test\n");
+    long long start_time = get_ns();
+    wait_val = 1;
+    pthread_cond_broadcast(&wait_cond);
+    pthread_mutex_unlock(&wait_mutex);
+
+    /* Wait until all threads are ready. */
+    pthread_mutex_lock(&barrier_mutex);
+    while (barrier_val > 0) {
+        pthread_cond_wait(&barrier_cond, &barrier_mutex);
+    }
+    pthread_mutex_unlock(&barrier_mutex);
+
+    long long end_time = get_ns();
+
+    printf("Elapsed time: %f\n", (end_time - start_time) / 1e9);
+    fprintf(statsfile, "%d\t%d\t%f\n", experiment_threads, experiment_size,
+            (end_time - start_time) / 1e9);
+}
+
+int main(int argc, char *argv[])
+{
+    statsfile = fopen("readlatency.data", "a");
+    if (statsfile == NULL) {
+        perror("open stats file");
+        return 1;
+    }
+
+    S3_initialize(NULL, S3_INIT_ALL);
+
+    bucket.bucketName = "mvrable-benchmark";
+    bucket.protocol = S3ProtocolHTTP;
+    bucket.uriStyle = S3UriStylePath;
+    bucket.accessKeyId = getenv("AWS_ACCESS_KEY_ID");
+    bucket.secretAccessKey = getenv("AWS_SECRET_ACCESS_KEY");
+
+    pthread_mutex_init(&barrier_mutex, NULL);
+    pthread_cond_init(&barrier_cond, NULL);
+    pthread_mutex_init(&wait_mutex, NULL);
+    pthread_cond_init(&wait_cond, NULL);
+
+    if (argc < 3) {
+        fprintf(stderr, "Usage: %s <threads> <size>\n", argv[0]);
+        return 1;
+    }
+
+    experiment_threads = atoi(argv[1]);
+    experiment_size = atoi(argv[2]);
+    launch_test(experiment_threads);
+
+    printf("Done.\n");
+    fclose(statsfile);
+
+    return 0;
+}
diff --git a/cloudbench/results/latency2/times-1-1048576.data b/cloudbench/results/latency2/times-1-1048576.data
new file mode 100644
index 0000000..1c51f50
--- /dev/null
+++ b/cloudbench/results/latency2/times-1-1048576.data
@@ -0,0 +1,50 @@
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diff --git a/cloudbench/results/latency2/times-1-16384.data b/cloudbench/results/latency2/times-1-16384.data
new file mode 100644
index 0000000..02762ae
--- /dev/null
+++ b/cloudbench/results/latency2/times-1-16384.data
@@ -0,0 +1,50 @@
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diff --git a/cloudbench/results/latency2/times-1-2097152.data b/cloudbench/results/latency2/times-1-2097152.data
new file mode 100644
index 0000000..f60d0ed
--- /dev/null
+++ b/cloudbench/results/latency2/times-1-2097152.data
@@ -0,0 +1,50 @@
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diff --git a/cloudbench/results/latency2/times-1-262144.data b/cloudbench/results/latency2/times-1-262144.data
new file mode 100644
index 0000000..3c08a95
--- /dev/null
+++ b/cloudbench/results/latency2/times-1-262144.data
@@ -0,0 +1,50 @@
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diff --git a/cloudbench/results/latency2/times-1-32768.data b/cloudbench/results/latency2/times-1-32768.data
new file mode 100644
index 0000000..e21a39f
--- /dev/null
+++ b/cloudbench/results/latency2/times-1-32768.data
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diff --git a/cloudbench/results/latency2/times-1-4194304.data b/cloudbench/results/latency2/times-1-4194304.data
new file mode 100644
index 0000000..a402982
--- /dev/null
+++ b/cloudbench/results/latency2/times-1-4194304.data
@@ -0,0 +1,50 @@
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diff --git a/cloudbench/results/latency2/times-1-65536.data b/cloudbench/results/latency2/times-1-65536.data
new file mode 100644
index 0000000..be87715
--- /dev/null
+++ b/cloudbench/results/latency2/times-1-65536.data
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diff --git a/cloudbench/results/latency2/times-1-8192.data b/cloudbench/results/latency2/times-1-8192.data
new file mode 100644
index 0000000..173be21
--- /dev/null
+++ b/cloudbench/results/latency2/times-1-8192.data
@@ -0,0 +1,50 @@
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diff --git a/cloudbench/results/latency2/times-128-8192.data b/cloudbench/results/latency2/times-128-8192.data
new file mode 100644
index 0000000..dcd8b25
--- /dev/null
+++ b/cloudbench/results/latency2/times-128-8192.data
@@ -0,0 +1,50 @@
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diff --git a/cloudbench/results/latency2/times-16-1048576.data b/cloudbench/results/latency2/times-16-1048576.data
new file mode 100644
index 0000000..acf5c54
--- /dev/null
+++ b/cloudbench/results/latency2/times-16-1048576.data
@@ -0,0 +1,50 @@
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diff --git a/cloudbench/results/latency2/times-16-16384.data b/cloudbench/results/latency2/times-16-16384.data
new file mode 100644
index 0000000..ee895ab
--- /dev/null
+++ b/cloudbench/results/latency2/times-16-16384.data
@@ -0,0 +1,50 @@
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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diff --git a/cloudbench/results/readlatency/readlatency.gnuplot b/cloudbench/results/readlatency/readlatency.gnuplot
new file mode 100644
index 0000000..aa72f76
--- /dev/null
+++ b/cloudbench/results/readlatency/readlatency.gnuplot
@@ -0,0 +1,151 @@
+#!/usr/bin/gnuplot -persist
+#
+#    
+#    	G N U P L O T
+#    	Version 4.2 patchlevel 5 
+#    	last modified Mar 2009
+#    	System: Linux 2.6.31-20-generic
+#    
+#    	Copyright (C) 1986 - 1993, 1998, 2004, 2007 - 2009
+#    	Thomas Williams, Colin Kelley and many others
+#    
+#    	Type `help` to access the on-line reference manual.
+#    	The gnuplot FAQ is available from http://www.gnuplot.info/faq/
+#    
+#    	Send bug reports and suggestions to <http://sourceforge.net/projects/gnuplot>
+#    
+# set terminal wxt 0
+# set output
+unset clip points
+set clip one
+unset clip two
+set bar 1.000000
+set border 31 front linetype -1 linewidth 1.000
+set xdata
+set ydata
+set zdata
+set x2data
+set y2data
+set timefmt x "%d/%m/%y,%H:%M"
+set timefmt y "%d/%m/%y,%H:%M"
+set timefmt z "%d/%m/%y,%H:%M"
+set timefmt x2 "%d/%m/%y,%H:%M"
+set timefmt y2 "%d/%m/%y,%H:%M"
+set timefmt cb "%d/%m/%y,%H:%M"
+set boxwidth
+set style fill  empty border
+set style rectangle back fc lt -3 fillstyle  solid 1.00 border -1
+set dummy x,y
+set format x "% g"
+set format y "% g"
+set format x2 "% g"
+set format y2 "% g"
+set format z "% g"
+set format cb "% g"
+set angles radians
+set grid nopolar
+set grid xtics nomxtics ytics nomytics noztics nomztics \
+ nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
+set grid layerdefault   linetype 0 linewidth 1.000,  linetype 0 linewidth 1.000
+set key title ""
+set key inside right bottom vertical Right noreverse enhanced autotitles nobox
+set key noinvert samplen 4 spacing 1 width 0 height 0 
+unset label
+unset arrow
+set style increment default
+unset style line
+unset style arrow
+set style histogram clustered gap 2 title  offset character 0, 0, 0
+unset logscale
+set offsets 0, 0, 0, 0
+set pointsize 1
+set encoding default
+unset polar
+unset parametric
+unset decimalsign
+set view 60, 30, 1, 1
+set view 
+set samples 100, 100
+set isosamples 10, 10
+set surface
+unset contour
+set clabel '%8.3g'
+set mapping cartesian
+set datafile separator whitespace
+unset hidden3d
+set cntrparam order 4
+set cntrparam linear
+set cntrparam levels auto 5
+set cntrparam points 5
+set size ratio 0 1,1
+set origin 0,0
+set style data points
+set style function lines
+set xzeroaxis linetype -2 linewidth 1.000
+set yzeroaxis linetype -2 linewidth 1.000
+set zzeroaxis linetype -2 linewidth 1.000
+set x2zeroaxis linetype -2 linewidth 1.000
+set y2zeroaxis linetype -2 linewidth 1.000
+set ticslevel 0.5
+set mxtics default
+set mytics default
+set mztics default
+set mx2tics default
+set my2tics default
+set mcbtics default
+set xtics border in scale 1,0.5 mirror norotate  offset character 0, 0, 0
+set xtics autofreq  norangelimit
+set ytics border in scale 1,0.5 mirror norotate  offset character 0, 0, 0
+set ytics autofreq  norangelimit
+set ztics border in scale 1,0.5 nomirror norotate  offset character 0, 0, 0
+set ztics autofreq  norangelimit
+set nox2tics
+set noy2tics
+set cbtics border in scale 1,0.5 mirror norotate  offset character 0, 0, 0
+set cbtics autofreq  norangelimit
+set title "Time to Fetch 1 MB of Data" 
+set title  offset character 0, 0, 0 font "" norotate
+set timestamp bottom 
+set timestamp "" 
+set timestamp  offset character 0, 0, 0 font "" norotate
+set rrange [ * : * ] noreverse nowriteback  # (currently [0.00000:10.0000] )
+set trange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
+set urange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
+set vrange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
+set xlabel "Completion Time (s)" 
+set xlabel  offset character 0, 0, 0 font "" textcolor lt -1 norotate
+set x2label "" 
+set x2label  offset character 0, 0, 0 font "" textcolor lt -1 norotate
+set xrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
+set x2range [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
+set ylabel "Fraction of Requests" 
+set ylabel  offset character 0, 0, 0 font "" textcolor lt -1 rotate by 90
+set y2label "" 
+set y2label  offset character 0, 0, 0 font "" textcolor lt -1 rotate by 90
+set yrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
+set y2range [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
+set zlabel "" 
+set zlabel  offset character 0, 0, 0 font "" textcolor lt -1 norotate
+set zrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
+set cblabel "" 
+set cblabel  offset character 0, 0, 0 font "" textcolor lt -1 rotate by 90
+set cbrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
+set zero 1e-08
+set lmargin  -1
+set bmargin  -1
+set rmargin  -1
+set tmargin  -1
+set locale "C"
+set pm3d explicit at s
+set pm3d scansautomatic
+set pm3d interpolate 1,1 flush begin noftriangles nohidden3d corners2color mean
+set palette positive nops_allcF maxcolors 0 gamma 1.5 color model RGB 
+set palette rgbformulae 7, 5, 15
+set colorbox default
+set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front bdefault
+set loadpath 
+set fontpath 
+set fit noerrorvariables
+GNUTERM = "wxt"
+plot [0:3] [0:1] "readlatency-32.cdf" using 1:($2/100.0) with lines title "32 Parallel Connections", "readlatency-1M.cdf" using 1:($2/100.0) with lines title "1 Connection", "readlatency-1.cdf" using 1:($2/200.0) with lines title "Single 32 kB Request"
+#    EOF
diff --git a/cloudbench/results/readlatency/readlatency.pdf b/cloudbench/results/readlatency/readlatency.pdf
new file mode 100644
index 0000000..b809334
Binary files /dev/null and b/cloudbench/results/readlatency/readlatency.pdf differ
diff --git a/cloudbench/results/readlatency/repeated-reads.cdf b/cloudbench/results/readlatency/repeated-reads.cdf
new file mode 100644
index 0000000..258bee5
--- /dev/null
+++ b/cloudbench/results/readlatency/repeated-reads.cdf
@@ -0,0 +1,184 @@
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diff --git a/cloudbench/s3pipeline.py b/cloudbench/s3pipeline.py
new file mode 100755
index 0000000..47216b1
--- /dev/null
+++ b/cloudbench/s3pipeline.py
@@ -0,0 +1,90 @@
+#!/usr/bin/python2.6
+
+import boto, httplib, socket, sys, time
+from boto.s3.key import Key
+from threading import Thread
+
+bucket_name = 'mvrable-benchmark'
+conn = boto.connect_s3(is_secure=False)
+
+class HttpResponseParser:
+    def __init__(self):
+        self.buf = ""
+        self.header = True
+        self.content_length = None
+
+    def process(self, data):
+        self.buf = self.buf + data
+        while self.parse():
+            pass
+
+    def parse(self):
+        if len(self.buf) == 0:
+            return False
+
+        if not self.header and self.content_length is not None:
+            consumed = min(self.content_length, len(self.buf))
+            #print "Got", consumed, "bytes of data"
+            self.content_length -= consumed
+            self.buf = self.buf[consumed:]
+
+            if self.content_length == 0:
+                print "Completed reading body"
+                self.content_length = None
+                self.header = True
+
+            return True
+
+        crlf = self.buf.find("\r\n")
+        if crlf < 0:
+            return False
+
+        line = self.buf[0:crlf]
+        self.buf = self.buf[crlf+2:]
+        #print "Header line:", line
+        if line.lower().startswith('content-length'):
+            self.content_length = int(line[16:])
+            print "Content length:", self.content_length
+        if line == "":
+            self.header = False
+        return True
+
+class PipelinedRequester:
+    def __init__(self, bucket):
+        self.bucket = bucket
+        self.host = conn.calling_format.build_host(conn.server_name(), bucket)
+        self.sock = socket.create_connection((self.host, 80))
+
+        t = Thread(target=self.reader_thread)
+        t.setDaemon(True)
+        t.start()
+
+    def reader_thread(self):
+        hrp = HttpResponseParser()
+        while True:
+            buf = self.sock.recv(4096)
+            if len(buf) == 0: break
+            hrp.process(buf)
+
+    def send_request(self, key):
+        method = 'GET'
+        path = conn.calling_format.build_path_base(self.bucket, key)
+        auth_path = conn.calling_format.build_auth_path(self.bucket, key)
+
+        headers = {'User-Agent': boto.UserAgent + " (pipelined)",
+                   'Content-Length': str(0)}
+        conn.add_aws_auth_header(headers, method, auth_path)
+
+        req = "%s %s HTTP/1.1\r\nHost: %s\r\n" % (method, path, self.host)
+        req = req + ''.join("%s: %s\r\n" % h for h in headers.items()) + "\r\n"
+        self.sock.sendall(req)
+
+requester = PipelinedRequester(bucket_name)
+for i in range(12, 18):
+    requester.send_request('file-%d-1' % (1 << i,))
+    if i == 12:
+        time.sleep(2)
+for i in range(32):
+    requester.send_request('file-8192-%d' % (i,))
+
+time.sleep(5)
diff --git a/s3bench/CMakeLists.txt b/s3bench/CMakeLists.txt
deleted file mode 100644
index 9cb9813..0000000
--- a/s3bench/CMakeLists.txt
+++ /dev/null
@@ -1,11 +0,0 @@
-include_directories("${LIBS3_BUILD_DIR}/include")
-link_directories("${LIBS3_BUILD_DIR}/lib")
-
-add_executable(s3readbench readbench.c)
-add_executable(s3readlatency readlatency.c)
-
-set(CMAKE_C_FLAGS "-Wall -std=gnu99 ${CMAKE_C_FLAGS}")
-set(INSTALL_RPATH_USE_LINK_PATH 1)
-
-target_link_libraries(s3readbench pthread s3)
-target_link_libraries(s3readlatency pthread s3)
diff --git a/s3bench/cloudtest.py b/s3bench/cloudtest.py
deleted file mode 100755
index 0755688..0000000
--- a/s3bench/cloudtest.py
+++ /dev/null
@@ -1,73 +0,0 @@
-#!/usr/bin/python
-#
-# Run a series of simple test requests against S3 for gathering some basic
-# performance numbers.
-
-import boto, time
-from boto.s3.connection import SubdomainCallingFormat
-from boto.s3.key import Key
-import azure
-
-BUCKET_NAME = 'mvrable-benchmark'
-SIZES = [64, 4096, 32 << 10, 256 << 10, 1 << 20, 4 << 20, 32 << 20]
-
-class S3TestConnection:
-    def __init__(self):
-        self.conn = boto.connect_s3(is_secure=False,
-                                    calling_format=SubdomainCallingFormat())
-        self.bucket = self.conn.get_bucket(BUCKET_NAME)
-
-    def put_object(self, name, size):
-        buf = 'A' * size
-        k = Key(self.bucket, name)
-        start_time = time.time()
-        k.set_contents_from_string(buf)
-        print "%s: %f" % (name, time.time() - start_time)
-
-    def get_object(self, name, size):
-        k = Key(self.bucket, name)
-        start_time = time.time()
-        buf = k.get_contents_as_string()
-        print "%s: %f" % (name, time.time() - start_time)
-
-class AzureTestConnection:
-    def __init__(self):
-        self.conn = azure.Connection()
-
-    def put_object(self, name, size):
-        buf = 'A' * size
-        start_time = time.time()
-        self.conn.make_request('/benchmark/' + name, 'PUT', buf,
-                               {'x-ms-blob-type': 'BlockBlob'})
-        print "%s: %f" % (name, time.time() - start_time)
-
-    def get_object(self, name, size):
-        start_time = time.time()
-        self.conn.make_request('/benchmark/' + name, 'GET')
-        print "%s: %f" % (name, time.time() - start_time)
-
-def run_test():
-    print "==== S3 ===="
-    c = S3TestConnection()
-    for repeat in range(4):
-        for size in SIZES:
-            c.put_object('file-%d-%d' % (size, repeat), size)
-
-    c = S3TestConnection()
-    for repeat in range(4):
-        for size in SIZES:
-            c.get_object('file-%d-%d' % (size, repeat), size)
-
-    print "==== AZURE ===="
-    c = AzureTestConnection()
-    for repeat in range(4):
-        for size in SIZES:
-            c.put_object('file-%d-%d' % (size, repeat), size)
-
-    c = AzureTestConnection()
-    for repeat in range(4):
-        for size in SIZES:
-            c.get_object('file-%d-%d' % (size, repeat), size)
-
-if __name__ == '__main__':
-    run_test()
diff --git a/s3bench/readbench.c b/s3bench/readbench.c
deleted file mode 100644
index 277e1f3..0000000
--- a/s3bench/readbench.c
+++ /dev/null
@@ -1,277 +0,0 @@
-/* Simple benchmark for Amazon S3: measures download speeds for
- * differently-sized objects and with a variable number of parallel
- * connections. */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <pthread.h>
-#include <time.h>
-#include <unistd.h>
-#include <math.h>
-
-#include "libs3.h"
-
-FILE *statsfile;
-
-S3BucketContext bucket;
-
-struct thread_state {
-    pthread_t thread;
-    int thread_num;
-    long long timestamp;
-
-    // Time when first bytes of the response were received
-    long long first_byte_timestamp;
-
-    // Statistics for computing mean and standard deviation
-    int n;
-    size_t bytes_sent;
-    double sum_x, sum_x2;
-
-    double sum_f;
-};
-
-struct callback_state {
-    struct thread_state *ts;
-    size_t bytes_remaining;
-};
-
-#define MAX_THREADS 128
-struct thread_state threads[MAX_THREADS];
-
-int experiment_threads, experiment_size, experiment_objects;
-
-pthread_mutex_t barrier_mutex;
-pthread_cond_t barrier_cond;
-int barrier_val;
-
-enum phase { LAUNCH, MEASURE, TERMINATE };
-volatile enum phase test_phase;
-
-void barrier_signal()
-{
-    pthread_mutex_lock(&barrier_mutex);
-    barrier_val--;
-    printf("Barrier: %d left\n", barrier_val);
-    if (barrier_val == 0)
-        pthread_cond_signal(&barrier_cond);
-    pthread_mutex_unlock(&barrier_mutex);
-}
-
-long long get_ns()
-{
-    struct timespec ts;
-    clock_gettime(CLOCK_MONOTONIC, &ts);
-
-    return ts.tv_sec * 1000000000LL + ts.tv_nsec;
-}
-
-static S3Status data_callback(int bufferSize, const char *buffer,
-                              void *callbackData)
-{
-    struct callback_state *state = (struct callback_state *)callbackData;
-    state->bytes_remaining -= bufferSize;
-    if (state->ts->first_byte_timestamp == 0)
-        state->ts->first_byte_timestamp = get_ns();
-    return S3StatusOK;
-}
-
-static S3Status properties_callback(const S3ResponseProperties *properties,
-                                     void *callbackData)
-{
-    return S3StatusOK;
-}
-
-static void complete_callback(S3Status status,
-                              const S3ErrorDetails *errorDetails,
-                              void *callbackData)
-{
-}
-
-static void do_get(const char *key, size_t bytes, struct thread_state *ts)
-{
-    struct callback_state state;
-    struct S3GetObjectHandler handler;
-
-    state.bytes_remaining = bytes;
-    state.ts = ts;
-    handler.responseHandler.propertiesCallback = properties_callback;
-    handler.responseHandler.completeCallback = complete_callback;
-    handler.getObjectDataCallback = data_callback;
-
-    S3_get_object(&bucket, key, NULL, 0, 0, NULL, &handler, &state);
-}
-
-void *benchmark_thread(void *arg)
-{
-    struct thread_state *ts = (struct thread_state *)arg;
-    char namebuf[64];
-    int i = 0;
-    int stage = 0;
-    int measuring = 0;
-
-    ts->n = 0;
-    ts->sum_x = ts->sum_x2 = ts->sum_f = 0.0;
-    ts->bytes_sent = 0;
-
-    ts->timestamp = get_ns();
-    while (test_phase != TERMINATE) {
-        int object = random() % experiment_objects;
-        sprintf(namebuf, "file-%d-%d", experiment_size, object);
-        ts->first_byte_timestamp = 0;
-        do_get(namebuf, experiment_size, ts);
-        long long timestamp = get_ns();
-        long long elapsed = timestamp - ts->timestamp;
-
-        printf("Elapsed[%d-%d]: %lld ns\n", ts->thread_num, i, elapsed);
-        printf("    first data after: %lld ns\n",
-               ts->first_byte_timestamp - ts->timestamp);
-        if (measuring && test_phase == MEASURE) {
-            double e = elapsed / 1e9;
-            double f = (ts->first_byte_timestamp - ts->timestamp) / 1e9;
-            ts->n++;
-            ts->sum_x += e;
-            ts->sum_x2 += e * e;
-            ts->sum_f += f;
-            ts->bytes_sent += experiment_size;
-        }
-
-        i++;
-        if (stage == 0 && i > 2) {
-            barrier_signal();
-            stage = 1;
-        } else if (stage == 1 && ts->n >= 2) {
-            barrier_signal();
-            stage = 2;
-        }
-
-        ts->timestamp = timestamp;
-        if (test_phase == MEASURE)
-            measuring = 1;
-    }
-
-    return NULL;
-}
-
-void launch_thread(int n)
-{
-    threads[n].thread_num = n;
-    if (pthread_create(&threads[n].thread, NULL, benchmark_thread, &threads[n]) != 0) {
-        fprintf(stderr, "Error launching thread!\n");
-        exit(1);
-    }
-}
-
-void wait_thread(int n)
-{
-    void *result;
-    pthread_join(threads[n].thread, &result);
-}
-
-void launch_test(int thread_count)
-{
-    int i;
-    long long start_time = get_ns();
-
-    test_phase = LAUNCH;
-    barrier_val = thread_count;
-    assert(thread_count <= MAX_THREADS);
-
-    printf("Launching...\n");
-
-    for (i = 0; i < thread_count; i++)
-        launch_thread(i);
-
-    /* Wait until all threads are ready. */
-    pthread_mutex_lock(&barrier_mutex);
-    while (barrier_val > 0) {
-        pthread_cond_wait(&barrier_cond, &barrier_mutex);
-    }
-    pthread_mutex_unlock(&barrier_mutex);
-
-    printf("Measuring...\n");
-    barrier_val = thread_count;
-    test_phase = MEASURE;
-
-    /* Ensure all threads have measured some activity, then a bit more. */
-    pthread_mutex_lock(&barrier_mutex);
-    while (barrier_val > 0) {
-        pthread_cond_wait(&barrier_cond, &barrier_mutex);
-    }
-    pthread_mutex_unlock(&barrier_mutex);
-    printf("Data in from all threads...\n");
-    sleep(5);
-
-    printf("Terminating...\n");
-    test_phase = TERMINATE;
-
-    for (i = 0; i < thread_count; i++)
-        wait_thread(i);
-
-    int n = 0;
-    double sum_x = 0.0, sum_x2 = 0.0, sum_f = 0.0;
-    double bandwidth = 0.0;
-    for (i = 0; i < thread_count; i++) {
-        n += threads[i].n;
-        sum_x += threads[i].sum_x;
-        sum_x2 += threads[i].sum_x2;
-        sum_f += threads[i].sum_f;
-        bandwidth += threads[i].bytes_sent / threads[i].sum_x;
-    }
-
-    double elapsed = (get_ns() - start_time) / 1e9;
-    printf("*** %d threads, %d byte objects\n",
-           experiment_threads, experiment_size);
-    printf("Elapsed: %f s\n", elapsed);
-    printf("Data points: %d\n", n);
-    double mx = sum_x / n;
-    double sx = sqrt((sum_x2 - 2*sum_x*mx + n*mx*mx) / (n - 1));
-    printf("Time: %f ± %f s\n", mx, sx);
-    printf("Latency to first byte: %f\n", sum_f / n);
-    printf("Bandwidth: %f B/s\n", bandwidth);
-
-    fprintf(statsfile, "%d\t%d\t%f\t%d\t%f\t%f\t%f\n",
-            experiment_threads, experiment_size, elapsed, n,
-            mx, sx, bandwidth);
-
-    printf("Finished.\n");
-}
-
-int main(int argc, char *argv[])
-{
-    statsfile = fopen("readbench.data", "a");
-    if (statsfile == NULL) {
-        perror("open stats file");
-        return 1;
-    }
-
-    S3_initialize(NULL, S3_INIT_ALL);
-
-    bucket.bucketName = "mvrable-benchmark";
-    bucket.protocol = S3ProtocolHTTP;
-    bucket.uriStyle = S3UriStylePath;
-    bucket.accessKeyId = getenv("AWS_ACCESS_KEY_ID");
-    bucket.secretAccessKey = getenv("AWS_SECRET_ACCESS_KEY");
-
-    pthread_mutex_init(&barrier_mutex, NULL);
-    pthread_cond_init(&barrier_cond, NULL);
-
-    if (argc < 4) {
-        fprintf(stderr, "Usage: %s <threads> <size> <object-count>\n", argv[0]);
-        return 1;
-    }
-
-    experiment_threads = atoi(argv[1]);
-    experiment_size = atoi(argv[2]);
-    experiment_objects = atoi(argv[3]);
-    assert(experiment_objects > 0);
-    launch_test(experiment_threads);
-
-    printf("Done.\n");
-    fclose(statsfile);
-
-    return 0;
-}
diff --git a/s3bench/readlatency.c b/s3bench/readlatency.c
deleted file mode 100644
index 5a08a64..0000000
--- a/s3bench/readlatency.c
+++ /dev/null
@@ -1,230 +0,0 @@
-/* Simple benchmark for Amazon S3: measures download speeds for
- * differently-sized objects and with a variable number of parallel
- * connections. */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <pthread.h>
-#include <time.h>
-#include <unistd.h>
-#include <math.h>
-
-#include "libs3.h"
-
-FILE *statsfile;
-
-S3BucketContext bucket;
-
-struct thread_state {
-    pthread_t thread;
-    int thread_num;
-    long long timestamp;
-
-    // Time when first bytes of the response were received
-    long long first_byte_timestamp;
-
-    // Statistics for computing mean and standard deviation
-    int n;
-    size_t bytes_sent;
-    double sum_x, sum_x2;
-
-    double sum_f;
-};
-
-struct callback_state {
-    struct thread_state *ts;
-    size_t bytes_remaining;
-};
-
-#define MAX_THREADS 1024
-struct thread_state threads[MAX_THREADS];
-
-int experiment_threads, experiment_size, experiment_objects;
-
-pthread_mutex_t barrier_mutex;
-pthread_cond_t barrier_cond;
-int barrier_val;
-
-pthread_mutex_t wait_mutex;
-pthread_cond_t wait_cond;
-int wait_val = 0;
-
-enum phase { LAUNCH, MEASURE, TERMINATE };
-volatile enum phase test_phase;
-
-void barrier_signal()
-{
-    pthread_mutex_lock(&barrier_mutex);
-    barrier_val--;
-    printf("Barrier: %d left\n", barrier_val);
-    if (barrier_val == 0)
-        pthread_cond_signal(&barrier_cond);
-    pthread_mutex_unlock(&barrier_mutex);
-}
-
-long long get_ns()
-{
-    struct timespec ts;
-    clock_gettime(CLOCK_MONOTONIC, &ts);
-
-    return ts.tv_sec * 1000000000LL + ts.tv_nsec;
-}
-
-static S3Status data_callback(int bufferSize, const char *buffer,
-                              void *callbackData)
-{
-    struct callback_state *state = (struct callback_state *)callbackData;
-    state->bytes_remaining -= bufferSize;
-    if (state->ts->first_byte_timestamp == 0)
-        state->ts->first_byte_timestamp = get_ns();
-    return S3StatusOK;
-}
-
-static S3Status properties_callback(const S3ResponseProperties *properties,
-                                     void *callbackData)
-{
-    return S3StatusOK;
-}
-
-static void complete_callback(S3Status status,
-                              const S3ErrorDetails *errorDetails,
-                              void *callbackData)
-{
-}
-
-static void do_get(const char *key, size_t bytes, struct thread_state *ts)
-{
-    struct callback_state state;
-    struct S3GetObjectHandler handler;
-
-    state.bytes_remaining = bytes;
-    state.ts = ts;
-    handler.responseHandler.propertiesCallback = properties_callback;
-    handler.responseHandler.completeCallback = complete_callback;
-    handler.getObjectDataCallback = data_callback;
-
-    S3_get_object(&bucket, key, NULL, 0, 0, NULL, &handler, &state);
-}
-
-void *benchmark_thread(void *arg)
-{
-    struct thread_state *ts = (struct thread_state *)arg;
-    char namebuf[64];
-
-    printf("Warming up...\n");
-    do_get("file-1048576-0", 0, ts);
-    printf("Ready.\n");
-    barrier_signal();
-
-    pthread_mutex_lock(&wait_mutex);
-    while (wait_val == 0)
-        pthread_cond_wait(&wait_cond, &wait_mutex);
-    pthread_mutex_unlock(&wait_mutex);
-
-    ts->timestamp = get_ns();
-    sprintf(namebuf, "file-%d-%d", experiment_size, ts->thread_num);
-    ts->first_byte_timestamp = 0;
-    do_get(namebuf, experiment_size, ts);
-    long long timestamp = get_ns();
-    long long elapsed = timestamp - ts->timestamp;
-
-    barrier_signal();
-
-    printf("Thread %d: %f elapsed\n", ts->thread_num, elapsed / 1e9);
-
-    return NULL;
-}
-
-void launch_thread(int n)
-{
-    threads[n].thread_num = n;
-    if (pthread_create(&threads[n].thread, NULL, benchmark_thread, &threads[n]) != 0) {
-        fprintf(stderr, "Error launching thread!\n");
-        exit(1);
-    }
-}
-
-void wait_thread(int n)
-{
-    void *result;
-    pthread_join(threads[n].thread, &result);
-}
-
-void launch_test(int thread_count)
-{
-    int i;
-
-    barrier_val = thread_count;
-    assert(thread_count <= MAX_THREADS);
-
-    for (i = 0; i < thread_count; i++)
-        launch_thread(i);
-
-    /* Wait until all threads are ready. */
-    pthread_mutex_lock(&barrier_mutex);
-    while (barrier_val > 0) {
-        pthread_cond_wait(&barrier_cond, &barrier_mutex);
-    }
-    pthread_mutex_unlock(&barrier_mutex);
-
-    sleep(2);
-    barrier_val = thread_count;
-    pthread_mutex_lock(&wait_mutex);
-    printf("Launching test\n");
-    long long start_time = get_ns();
-    wait_val = 1;
-    pthread_cond_broadcast(&wait_cond);
-    pthread_mutex_unlock(&wait_mutex);
-
-    /* Wait until all threads are ready. */
-    pthread_mutex_lock(&barrier_mutex);
-    while (barrier_val > 0) {
-        pthread_cond_wait(&barrier_cond, &barrier_mutex);
-    }
-    pthread_mutex_unlock(&barrier_mutex);
-
-    long long end_time = get_ns();
-
-    printf("Elapsed time: %f\n", (end_time - start_time) / 1e9);
-    fprintf(statsfile, "%d\t%d\t%f\n", experiment_threads, experiment_size,
-            (end_time - start_time) / 1e9);
-}
-
-int main(int argc, char *argv[])
-{
-    statsfile = fopen("readlatency.data", "a");
-    if (statsfile == NULL) {
-        perror("open stats file");
-        return 1;
-    }
-
-    S3_initialize(NULL, S3_INIT_ALL);
-
-    bucket.bucketName = "mvrable-benchmark";
-    bucket.protocol = S3ProtocolHTTP;
-    bucket.uriStyle = S3UriStylePath;
-    bucket.accessKeyId = getenv("AWS_ACCESS_KEY_ID");
-    bucket.secretAccessKey = getenv("AWS_SECRET_ACCESS_KEY");
-
-    pthread_mutex_init(&barrier_mutex, NULL);
-    pthread_cond_init(&barrier_cond, NULL);
-    pthread_mutex_init(&wait_mutex, NULL);
-    pthread_cond_init(&wait_cond, NULL);
-
-    if (argc < 3) {
-        fprintf(stderr, "Usage: %s <threads> <size>\n", argv[0]);
-        return 1;
-    }
-
-    experiment_threads = atoi(argv[1]);
-    experiment_size = atoi(argv[2]);
-    launch_test(experiment_threads);
-
-    printf("Done.\n");
-    fclose(statsfile);
-
-    return 0;
-}
diff --git a/s3bench/results/latency2/times-1-1048576.data b/s3bench/results/latency2/times-1-1048576.data
deleted file mode 100644
index 1c51f50..0000000
--- a/s3bench/results/latency2/times-1-1048576.data
+++ /dev/null
@@ -1,50 +0,0 @@
-0.245687	1
-0.345290	2
-0.360398	3
-0.367082	4
-0.370840	5
-0.375545	6
-0.377836	7
-0.389673	8
-0.392879	9
-0.393538	10
-0.394881	11
-0.396469	12
-0.402658	13
-0.405560	14
-0.405616	15
-0.413440	16
-0.415442	17
-0.415788	18
-0.417165	19
-0.420620	20
-0.421827	21
-0.422170	22
-0.422693	23
-0.424844	24
-0.425984	25
-0.426748	26
-0.427215	27
-0.435269	28
-0.436552	29
-0.437202	30
-0.440512	31
-0.443225	32
-0.445447	33
-0.447369	34
-0.448404	35
-0.450101	36
-0.450672	37
-0.453190	38
-0.455920	39
-0.456537	40
-0.470215	41
-0.471934	42
-0.472819	43
-0.479924	44
-0.485398	45
-0.486872	46
-0.555995	47
-0.629986	48
-0.853291	49
-1.162495	50
diff --git a/s3bench/results/latency2/times-1-16384.data b/s3bench/results/latency2/times-1-16384.data
deleted file mode 100644
index 02762ae..0000000
--- a/s3bench/results/latency2/times-1-16384.data
+++ /dev/null
@@ -1,50 +0,0 @@
-0.076027	1
-0.086907	2
-0.108150	3
-0.109142	4
-0.109332	5
-0.110458	6
-0.110731	7
-0.110744	8
-0.111674	9
-0.112058	10
-0.112290	11
-0.112309	12
-0.112920	13
-0.113302	14
-0.115402	15
-0.115530	16
-0.116263	17
-0.116558	18
-0.116687	19
-0.116836	20
-0.118067	21
-0.118260	22
-0.118514	23
-0.119031	24
-0.121318	25
-0.124867	26
-0.125090	27
-0.125838	28
-0.126451	29
-0.127242	30
-0.127554	31
-0.128401	32
-0.129554	33
-0.133508	34
-0.133875	35
-0.133879	36
-0.135534	37
-0.137921	38
-0.148270	39
-0.151381	40
-0.156417	41
-0.159469	42
-0.175155	43
-0.180779	44
-0.187874	45
-0.200517	46
-0.239237	47
-0.319098	48
-0.426761	49
-0.567450	50
diff --git a/s3bench/results/latency2/times-1-2097152.data b/s3bench/results/latency2/times-1-2097152.data
deleted file mode 100644
index f60d0ed..0000000
--- a/s3bench/results/latency2/times-1-2097152.data
+++ /dev/null
@@ -1,50 +0,0 @@
-0.480001	1
-0.482716	2
-0.492883	3
-0.496570	4
-0.503112	5
-0.503467	6
-0.508914	7
-0.511720	8
-0.515805	9
-0.534276	10
-0.536384	11
-0.536638	12
-0.541766	13
-0.542662	14
-0.546021	15
-0.551714	16
-0.553925	17
-0.554129	18
-0.562453	19
-0.563337	20
-0.569507	21
-0.574251	22
-0.574472	23
-0.575643	24
-0.576192	25
-0.577031	26
-0.580595	27
-0.580729	28
-0.582319	29
-0.583317	30
-0.590730	31
-0.600255	32
-0.613829	33
-0.621110	34
-0.623255	35
-0.633959	36
-0.658147	37
-0.715391	38
-0.724452	39
-0.733508	40
-0.749275	41
-0.755967	42
-0.763497	43
-0.864642	44
-0.881960	45
-1.039886	46
-1.058287	47
-1.092262	48
-1.137048	49
-3.377304	50
diff --git a/s3bench/results/latency2/times-1-262144.data b/s3bench/results/latency2/times-1-262144.data
deleted file mode 100644
index 3c08a95..0000000
--- a/s3bench/results/latency2/times-1-262144.data
+++ /dev/null
@@ -1,50 +0,0 @@
-0.133314	1
-0.170866	2
-0.231067	3
-0.234155	4
-0.237463	5
-0.244822	6
-0.244956	7
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deleted file mode 100644
index e21a39f..0000000
--- a/s3bench/results/latency2/times-1-32768.data
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deleted file mode 100644
index a402982..0000000
--- a/s3bench/results/latency2/times-1-4194304.data
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deleted file mode 100644
index be87715..0000000
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deleted file mode 100644
index 173be21..0000000
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deleted file mode 100644
index dcd8b25..0000000
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deleted file mode 100644
index acf5c54..0000000
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deleted file mode 100644
index ee895ab..0000000
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deleted file mode 100644
index 843dfcd..0000000
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diff --git a/s3bench/results/latency2/times-16-4194304.data b/s3bench/results/latency2/times-16-4194304.data
deleted file mode 100644
index 7b0c660..0000000
--- a/s3bench/results/latency2/times-16-4194304.data
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diff --git a/s3bench/results/latency2/times-16-65536.data b/s3bench/results/latency2/times-16-65536.data
deleted file mode 100644
index 63e0002..0000000
--- a/s3bench/results/latency2/times-16-65536.data
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diff --git a/s3bench/results/latency2/times-16-8192.data b/s3bench/results/latency2/times-16-8192.data
deleted file mode 100644
index 38262a2..0000000
--- a/s3bench/results/latency2/times-16-8192.data
+++ /dev/null
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deleted file mode 100644
index fb8bd4e..0000000
--- a/s3bench/results/latency2/times-2-524288.data
+++ /dev/null
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diff --git a/s3bench/results/latency2/times-32-16384.data b/s3bench/results/latency2/times-32-16384.data
deleted file mode 100644
index dd0fa3b..0000000
--- a/s3bench/results/latency2/times-32-16384.data
+++ /dev/null
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diff --git a/s3bench/results/latency2/times-32-262144.data b/s3bench/results/latency2/times-32-262144.data
deleted file mode 100644
index 497049f..0000000
--- a/s3bench/results/latency2/times-32-262144.data
+++ /dev/null
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deleted file mode 100644
index 59d75ac..0000000
--- a/s3bench/results/latency2/times-32-65536.data
+++ /dev/null
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diff --git a/s3bench/results/latency2/times-32-8192.data b/s3bench/results/latency2/times-32-8192.data
deleted file mode 100644
index 254afa2..0000000
--- a/s3bench/results/latency2/times-32-8192.data
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deleted file mode 100644
index 6c8d050..0000000
--- a/s3bench/results/latency2/times-4-1048576.data
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deleted file mode 100644
index 68d1464..0000000
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deleted file mode 100644
index 30d0ec0..0000000
--- a/s3bench/results/latency2/times-4-4194304.data
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deleted file mode 100644
index 0826357..0000000
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diff --git a/s3bench/results/latency2/times-8-1048576.data b/s3bench/results/latency2/times-8-1048576.data
deleted file mode 100644
index b124631..0000000
--- a/s3bench/results/latency2/times-8-1048576.data
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deleted file mode 100644
index 9a1c1d1..0000000
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deleted file mode 100644
index db8079c..0000000
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diff --git a/s3bench/results/latency2/times-8-262144.data b/s3bench/results/latency2/times-8-262144.data
deleted file mode 100644
index 4e78950..0000000
--- a/s3bench/results/latency2/times-8-262144.data
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diff --git a/s3bench/results/latency2/times-8-4194304.data b/s3bench/results/latency2/times-8-4194304.data
deleted file mode 100644
index 6a8a855..0000000
--- a/s3bench/results/latency2/times-8-4194304.data
+++ /dev/null
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diff --git a/s3bench/results/latency2/times-8-65536.data b/s3bench/results/latency2/times-8-65536.data
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index a9a6cd8..0000000
--- a/s3bench/results/latency2/times-8-65536.data
+++ /dev/null
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diff --git a/s3bench/results/latency2/times-8-8192.data b/s3bench/results/latency2/times-8-8192.data
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index e26bf48..0000000
--- a/s3bench/results/latency2/times-8-8192.data
+++ /dev/null
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diff --git a/s3bench/results/readlatency/readlatency-0.cdf b/s3bench/results/readlatency/readlatency-0.cdf
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index 9be1a09..0000000
--- a/s3bench/results/readlatency/readlatency-0.cdf
+++ /dev/null
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diff --git a/s3bench/results/readlatency/readlatency-1.cdf b/s3bench/results/readlatency/readlatency-1.cdf
deleted file mode 100644
index 23d2d41..0000000
--- a/s3bench/results/readlatency/readlatency-1.cdf
+++ /dev/null
@@ -1,200 +0,0 @@
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diff --git a/s3bench/results/readlatency/readlatency-1M.cdf b/s3bench/results/readlatency/readlatency-1M.cdf
deleted file mode 100644
index 13af21d..0000000
--- a/s3bench/results/readlatency/readlatency-1M.cdf
+++ /dev/null
@@ -1,100 +0,0 @@
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diff --git a/s3bench/results/readlatency/readlatency-32.cdf b/s3bench/results/readlatency/readlatency-32.cdf
deleted file mode 100644
index 77a7ff3..0000000
--- a/s3bench/results/readlatency/readlatency-32.cdf
+++ /dev/null
@@ -1,100 +0,0 @@
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diff --git a/s3bench/results/readlatency/readlatency.cdf b/s3bench/results/readlatency/readlatency.cdf
deleted file mode 100644
index 8d3c751..0000000
--- a/s3bench/results/readlatency/readlatency.cdf
+++ /dev/null
@@ -1,100 +0,0 @@
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diff --git a/s3bench/results/readlatency/readlatency.data b/s3bench/results/readlatency/readlatency.data
deleted file mode 100644
index 4eac98b..0000000
--- a/s3bench/results/readlatency/readlatency.data
+++ /dev/null
@@ -1,400 +0,0 @@
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diff --git a/s3bench/results/readlatency/readlatency.gnuplot b/s3bench/results/readlatency/readlatency.gnuplot
deleted file mode 100644
index aa72f76..0000000
--- a/s3bench/results/readlatency/readlatency.gnuplot
+++ /dev/null
@@ -1,151 +0,0 @@
-#!/usr/bin/gnuplot -persist
-#
-#    
-#    	G N U P L O T
-#    	Version 4.2 patchlevel 5 
-#    	last modified Mar 2009
-#    	System: Linux 2.6.31-20-generic
-#    
-#    	Copyright (C) 1986 - 1993, 1998, 2004, 2007 - 2009
-#    	Thomas Williams, Colin Kelley and many others
-#    
-#    	Type `help` to access the on-line reference manual.
-#    	The gnuplot FAQ is available from http://www.gnuplot.info/faq/
-#    
-#    	Send bug reports and suggestions to <http://sourceforge.net/projects/gnuplot>
-#    
-# set terminal wxt 0
-# set output
-unset clip points
-set clip one
-unset clip two
-set bar 1.000000
-set border 31 front linetype -1 linewidth 1.000
-set xdata
-set ydata
-set zdata
-set x2data
-set y2data
-set timefmt x "%d/%m/%y,%H:%M"
-set timefmt y "%d/%m/%y,%H:%M"
-set timefmt z "%d/%m/%y,%H:%M"
-set timefmt x2 "%d/%m/%y,%H:%M"
-set timefmt y2 "%d/%m/%y,%H:%M"
-set timefmt cb "%d/%m/%y,%H:%M"
-set boxwidth
-set style fill  empty border
-set style rectangle back fc lt -3 fillstyle  solid 1.00 border -1
-set dummy x,y
-set format x "% g"
-set format y "% g"
-set format x2 "% g"
-set format y2 "% g"
-set format z "% g"
-set format cb "% g"
-set angles radians
-set grid nopolar
-set grid xtics nomxtics ytics nomytics noztics nomztics \
- nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
-set grid layerdefault   linetype 0 linewidth 1.000,  linetype 0 linewidth 1.000
-set key title ""
-set key inside right bottom vertical Right noreverse enhanced autotitles nobox
-set key noinvert samplen 4 spacing 1 width 0 height 0 
-unset label
-unset arrow
-set style increment default
-unset style line
-unset style arrow
-set style histogram clustered gap 2 title  offset character 0, 0, 0
-unset logscale
-set offsets 0, 0, 0, 0
-set pointsize 1
-set encoding default
-unset polar
-unset parametric
-unset decimalsign
-set view 60, 30, 1, 1
-set view 
-set samples 100, 100
-set isosamples 10, 10
-set surface
-unset contour
-set clabel '%8.3g'
-set mapping cartesian
-set datafile separator whitespace
-unset hidden3d
-set cntrparam order 4
-set cntrparam linear
-set cntrparam levels auto 5
-set cntrparam points 5
-set size ratio 0 1,1
-set origin 0,0
-set style data points
-set style function lines
-set xzeroaxis linetype -2 linewidth 1.000
-set yzeroaxis linetype -2 linewidth 1.000
-set zzeroaxis linetype -2 linewidth 1.000
-set x2zeroaxis linetype -2 linewidth 1.000
-set y2zeroaxis linetype -2 linewidth 1.000
-set ticslevel 0.5
-set mxtics default
-set mytics default
-set mztics default
-set mx2tics default
-set my2tics default
-set mcbtics default
-set xtics border in scale 1,0.5 mirror norotate  offset character 0, 0, 0
-set xtics autofreq  norangelimit
-set ytics border in scale 1,0.5 mirror norotate  offset character 0, 0, 0
-set ytics autofreq  norangelimit
-set ztics border in scale 1,0.5 nomirror norotate  offset character 0, 0, 0
-set ztics autofreq  norangelimit
-set nox2tics
-set noy2tics
-set cbtics border in scale 1,0.5 mirror norotate  offset character 0, 0, 0
-set cbtics autofreq  norangelimit
-set title "Time to Fetch 1 MB of Data" 
-set title  offset character 0, 0, 0 font "" norotate
-set timestamp bottom 
-set timestamp "" 
-set timestamp  offset character 0, 0, 0 font "" norotate
-set rrange [ * : * ] noreverse nowriteback  # (currently [0.00000:10.0000] )
-set trange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
-set urange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
-set vrange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
-set xlabel "Completion Time (s)" 
-set xlabel  offset character 0, 0, 0 font "" textcolor lt -1 norotate
-set x2label "" 
-set x2label  offset character 0, 0, 0 font "" textcolor lt -1 norotate
-set xrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
-set x2range [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
-set ylabel "Fraction of Requests" 
-set ylabel  offset character 0, 0, 0 font "" textcolor lt -1 rotate by 90
-set y2label "" 
-set y2label  offset character 0, 0, 0 font "" textcolor lt -1 rotate by 90
-set yrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
-set y2range [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
-set zlabel "" 
-set zlabel  offset character 0, 0, 0 font "" textcolor lt -1 norotate
-set zrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
-set cblabel "" 
-set cblabel  offset character 0, 0, 0 font "" textcolor lt -1 rotate by 90
-set cbrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
-set zero 1e-08
-set lmargin  -1
-set bmargin  -1
-set rmargin  -1
-set tmargin  -1
-set locale "C"
-set pm3d explicit at s
-set pm3d scansautomatic
-set pm3d interpolate 1,1 flush begin noftriangles nohidden3d corners2color mean
-set palette positive nops_allcF maxcolors 0 gamma 1.5 color model RGB 
-set palette rgbformulae 7, 5, 15
-set colorbox default
-set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front bdefault
-set loadpath 
-set fontpath 
-set fit noerrorvariables
-GNUTERM = "wxt"
-plot [0:3] [0:1] "readlatency-32.cdf" using 1:($2/100.0) with lines title "32 Parallel Connections", "readlatency-1M.cdf" using 1:($2/100.0) with lines title "1 Connection", "readlatency-1.cdf" using 1:($2/200.0) with lines title "Single 32 kB Request"
-#    EOF
diff --git a/s3bench/results/readlatency/readlatency.pdf b/s3bench/results/readlatency/readlatency.pdf
deleted file mode 100644
index b809334..0000000
Binary files a/s3bench/results/readlatency/readlatency.pdf and /dev/null differ
diff --git a/s3bench/results/readlatency/repeated-reads.cdf b/s3bench/results/readlatency/repeated-reads.cdf
deleted file mode 100644
index 258bee5..0000000
--- a/s3bench/results/readlatency/repeated-reads.cdf
+++ /dev/null
@@ -1,184 +0,0 @@
-45678659	1
-46355122	2
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-5648448221	184
diff --git a/s3bench/s3pipeline.py b/s3bench/s3pipeline.py
deleted file mode 100755
index 47216b1..0000000
--- a/s3bench/s3pipeline.py
+++ /dev/null
@@ -1,90 +0,0 @@
-#!/usr/bin/python2.6
-
-import boto, httplib, socket, sys, time
-from boto.s3.key import Key
-from threading import Thread
-
-bucket_name = 'mvrable-benchmark'
-conn = boto.connect_s3(is_secure=False)
-
-class HttpResponseParser:
-    def __init__(self):
-        self.buf = ""
-        self.header = True
-        self.content_length = None
-
-    def process(self, data):
-        self.buf = self.buf + data
-        while self.parse():
-            pass
-
-    def parse(self):
-        if len(self.buf) == 0:
-            return False
-
-        if not self.header and self.content_length is not None:
-            consumed = min(self.content_length, len(self.buf))
-            #print "Got", consumed, "bytes of data"
-            self.content_length -= consumed
-            self.buf = self.buf[consumed:]
-
-            if self.content_length == 0:
-                print "Completed reading body"
-                self.content_length = None
-                self.header = True
-
-            return True
-
-        crlf = self.buf.find("\r\n")
-        if crlf < 0:
-            return False
-
-        line = self.buf[0:crlf]
-        self.buf = self.buf[crlf+2:]
-        #print "Header line:", line
-        if line.lower().startswith('content-length'):
-            self.content_length = int(line[16:])
-            print "Content length:", self.content_length
-        if line == "":
-            self.header = False
-        return True
-
-class PipelinedRequester:
-    def __init__(self, bucket):
-        self.bucket = bucket
-        self.host = conn.calling_format.build_host(conn.server_name(), bucket)
-        self.sock = socket.create_connection((self.host, 80))
-
-        t = Thread(target=self.reader_thread)
-        t.setDaemon(True)
-        t.start()
-
-    def reader_thread(self):
-        hrp = HttpResponseParser()
-        while True:
-            buf = self.sock.recv(4096)
-            if len(buf) == 0: break
-            hrp.process(buf)
-
-    def send_request(self, key):
-        method = 'GET'
-        path = conn.calling_format.build_path_base(self.bucket, key)
-        auth_path = conn.calling_format.build_auth_path(self.bucket, key)
-
-        headers = {'User-Agent': boto.UserAgent + " (pipelined)",
-                   'Content-Length': str(0)}
-        conn.add_aws_auth_header(headers, method, auth_path)
-
-        req = "%s %s HTTP/1.1\r\nHost: %s\r\n" % (method, path, self.host)
-        req = req + ''.join("%s: %s\r\n" % h for h in headers.items()) + "\r\n"
-        self.sock.sendall(req)
-
-requester = PipelinedRequester(bucket_name)
-for i in range(12, 18):
-    requester.send_request('file-%d-1' % (1 << i,))
-    if i == 12:
-        time.sleep(2)
-for i in range(32):
-    requester.send_request('file-8192-%d' % (i,))
-
-time.sleep(5)