Changeset 16589 for trunk/Ohana/src/opihi/pcontrol/CheckSystem.c

Timestamp:

Feb 21, 2008, 6:23:55 PM (18 years ago)

Author:

eugene

Message:

pause for 100msec if everyone is busy or idle

File:

• trunk/Ohana/src/opihi/pcontrol/CheckSystem.c (modified) (3 diffs)

trunk/Ohana/src/opihi/pcontrol/CheckSystem.c

@@ -59 +59 @@
 void *CheckSystem_Threaded (void *data) {
 
-  int Njobchecks, Nhostchecks, Nlivechecks;
+  int Njobchecks, Nhostchecks, Nlivechecks, Ndonejobs;
 
   Nlivechecks = 0;
@@ -86 +86 @@
     Njobchecks = 0;
     Nhostchecks = 0;
+    Ndonejobs = 0;
 
     if ((RunLevel == PCONTROL_RUN_ALL) || (RunLevel == PCONTROL_RUN_REAP)) {
       Njobchecks  += CheckBusyJobs(0.020);  /* get job status (PCLIENT) */
       TestCheckPoint ();
-      Njobchecks  += CheckDoneJobs(0.020);  /* harvest job stdout/stderr (!PCLIENT) */
+      Ndonejobs    = CheckDoneJobs(0.020);  /* harvest job stdout/stderr (!PCLIENT) */
+      Njobchecks  += Ndonejobs;
       TestCheckPoint ();
       Njobchecks  += CheckKillJobs(0.020);  /* harvest job stdout/stderr (PCLIENT) */
@@ -113 +115 @@
       CheckLiveHosts(0.040);
       usleep (100000); // idle if no jobs are waiting
-    } 
-    
+    } else {
+      // if we only have busy jobs, pause a moment before trying again
+      if (!Ndonejobs) {
+        usleep (100000);
+      }
+    }
+
     if (DEBUG) { 
       Stack *stack;