Changeset 14069

Timestamp:

Jul 8, 2007, 12:18:50 PM (19 years ago)

Author:

eugene

Message:

added in fuzz to next start time

File:

• trunk/Ohana/src/opihi/pantasks/CheckTasks.c (modified) (2 diffs)

trunk/Ohana/src/opihi/pantasks/CheckTasks.c

@@ -6 +6 @@
   Task *task;
   int status;
-  float time_running, next_timeout;
+  float time_running, next_timeout, fuzz;
   // struct timeval now;
 
@@ -45 +45 @@
     next_timeout = 0.0;
     gettimeofday (&task[0].last, (void *) NULL);
-    // XXX here is where I should add a fuzz factor (fraction of exec_period) 
+
+    // add random offset between 0 and 5% of exec_period
+    // XXX this should be optional
+    fuzz = 0.05*task[0].exec_period*drand48() + 1e-6*task[0].last.tv_usec; 
+    task[0].last.tv_usec = 1e6*(fuzz - (int)fuzz);
+    task[0].last.tv_sec += (int) fuzz;
 
     /* ready to run? : run task.exec macro */