Updates to the workload generator to perform a parameter sweep.

diff --git a/microbench/workload.py b/microbench/workload.py
index 3ec8942..0ce8ea0 100755 (executable)
--- a/microbench/workload.py
+++ b/microbench/workload.py
@@ -29,12 +29,12 @@ class WorkerThread:
 
     def __init__(self):
         self.stats = []
-        self.duration = 7200.0      # Seconds for which to run
+        self.duration = 1800.0      # Seconds for which to run
         self.write_fraction = 0.5   # Fraction of operations which are writes
         self.wss_count = 2048       # Files in the working set
         self.tot_count = 2048       # Total number of files created
-        self.filesize = 256 * 1024  # Size of files to work with
-        self.target_ops = 10        # Target operations/second/thread
+        self.filesize = 32 * 1024   # Size of files to work with
+        self.target_ops = 40        # Target operations/second/thread
 
     def get_params(self):
         params = {}
@@ -58,7 +58,7 @@ class WorkerThread:
             info = self._operation()
             time2 = time.time()
             self.stats.append((time1, time2 - time1, info))
-            print self.stats[-1]
+            #print self.stats[-1]
             delay = time1 + (1.0 / self.target_ops) - time2
             if delay > 0: time.sleep(delay)
 
@@ -97,12 +97,17 @@ def run_stats(stats):
     print "WRITES:"
     print_distribution_stats([x[1] for x in stats if x[2][0] == 'write'])
 
-if __name__ == '__main__':
+fp = open('/tmp/results.json', 'a')
+
+def run(filecount, writefrac, filesize):
     workers = []
     threads = []
     for i in range(THREADS):
         w = WorkerThread()
-        #if i == 0: w.setup()
+        w.write_fraction = writefrac
+        w.wss_count = w.tot_count = filecount
+        w.filesize = filesize
+        if i == 0: w.setup()
         t = threading.Thread(target=w.run)
         threads.append(t)
         workers.append(w)
@@ -118,8 +123,15 @@ if __name__ == '__main__':
         results += w.stats
     results.sort()
 
-    fp = open('/tmp/results.json', 'w')
     fp.write(json.dumps(workers[0].get_params(), indent=2) + "\n\n")
     fp.write(json.dumps(results, indent=2))
-    fp.close()
+    fp.write("\n\n")
     run_stats(results)
+
+if __name__ == '__main__':
+    for filesize in [32, 256, 2048]:            # KiB
+        for totsize in [256, 512, 1024]:        # MiB
+            filecount = totsize * 1024 / filesize
+            for writefrac in [0.0, 0.5]:
+                run(filecount, writefrac, filesize * 1024)
+    fp.close()