Add proper per-file copyright notices/licenses and top-level license.

[bluesky.git] / microbench / readbench.c

diff --git a/microbench/readbench.c b/microbench/readbench.c
index 043a2cf..5a397e3 100644 (file)
--- a/microbench/readbench.c
+++ b/microbench/readbench.c
@@ -11,6 +11,7 @@
 
 struct thread_state {
     pthread_t thread;
+    const char *filename;
     int thread_num;
     long long timestamp;
 };
@@ -56,40 +57,37 @@ void *benchmark_thread(void *arg)
 {
     struct thread_state *ts = (struct thread_state *)arg;
 
-    char namebuf[64];
-    sprintf(namebuf, "file-%d", ts->thread_num + 1);
-    printf("Opening %s\n", namebuf);
+    printf("Opening %s\n", ts->filename);
 
     int64_t start, end;
 
     start = now_hires();
 
-    struct stat stat_buf;
-    stat(namebuf, &stat_buf);
+    //struct stat stat_buf;
+    //stat(namebuf, &stat_buf);
 
-#if 0
-    FILE *f = fopen(namebuf, "rb");
+    FILE *f = fopen(ts->filename, "rb");
     if (f == NULL) {
         perror("fopen");
         return NULL;
     }
 
-    char buf[4096];
-    fread(buf, 1, sizeof(buf), f);
-#endif
+    char buf[65536];
+    while (fread(buf, 1, sizeof(buf), f) > 0) { }
 
     end = now_hires();
     printf("Thread %d: Time = %"PRIi64"\n", ts->thread_num, end - start);
 
-    // fclose(f);
+    fclose(f);
 
     return NULL;
 }
 
-void launch_thread(int i)
+void launch_thread(int i, const char *filename)
 {
     threads[i].thread_num = i;
-    printf("Launching thread %d...\n", i);
+    threads[i].filename = filename;
+    printf("Launching thread %d [%s]...\n", i, filename);
     if (pthread_create(&threads[i].thread, NULL, benchmark_thread, &threads[i]) != 0) {
         fprintf(stderr, "Error launching thread!\n");
         exit(1);
@@ -104,17 +102,12 @@ void wait_thread(int n)
 
 int main(int argc, char *argv[])
 {
-    int threads = 8;
-
-    if (argc > 1)
-        threads = atoi(argv[1]);
-    if (threads > MAX_THREADS)
-        threads = MAX_THREADS;
+    int threads = argc - 1;
 
     printf("Testing with %d threads\n", threads);
 
     for (int i = 0; i < threads; i++) {
-        launch_thread(i);
+        launch_thread(i, argv[i + 1]);
     }
 
     for (int i = 0; i < threads; i++) {