File at-adjust_load_to_cpu_count.patch of Package at

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File at-adjust_load_to_cpu_count.patch of Package at (Revision 5e5ed9097b7694e5567b0ac8bb8209ad)

Currently displaying revision 5e5ed9097b7694e5567b0ac8bb8209ad , Show latest

Index: at-3.1.16/at.1.in
===================================================================
--- at-3.1.16.orig/at.1.in	2015-06-23 18:12:35.348993941 +0200
+++ at-3.1.16/at.1.in	2015-06-23 18:48:39.666401868 +0200
@@ -68,6 +68,9 @@ deletes jobs, identified by their job nu
 executes commands when system load levels permit; in other words, when the load average
 drops below @LOADAVG_MX@, or the value specified in the invocation of
 .BR atd .
+Note that because of the load meaning on Linux,
+this number is multiplied by the amount of CPUs when compared to the
+system loadavg.
 .PP
 .B At
 allows fairly complex time
Index: at-3.1.16/atd.c
===================================================================
--- at-3.1.16.orig/atd.c	2015-06-23 18:12:35.353994001 +0200
+++ at-3.1.16/atd.c	2015-06-23 18:31:52.137058536 +0200
@@ -763,6 +763,7 @@ run_loop()
     int run_batch;
     static time_t next_batch = 0;
     double currlavg[3];
+    int cpu_count = 1;
 
     /* Main loop. Open spool directory for reading and look over all the
      * files in there. If the filename indicates that the job should be run,
@@ -907,7 +908,14 @@ run_loop()
 #ifdef GETLOADAVG_PRIVILEGED
 	END_PRIV
 #endif
-	if (currlavg[0] < load_avg) {
+#ifdef _SC_NPROCESSORS_ONLN
+	cpu_count = sysconf(_SC_NPROCESSORS_ONLN);
+	if (cpu_count < 1) {
+		cpu_count = 1;
+	}
+#endif
+
+	if (currlavg[0] < load_avg * cpu_count) {
 	    run_file(batch_name, batch_uid, batch_gid);
 	    run_batch--;
         }
Index: at-3.1.16/atd.8.in
===================================================================
--- at-3.1.16.orig/atd.8.in	2014-09-30 08:29:02.000000000 +0200
+++ at-3.1.16/atd.8.in	2015-06-23 18:48:17.519128303 +0200
@@ -20,10 +20,8 @@ runs jobs queued by
 .B -l
 Specifies a limiting load factor, over which batch jobs should
 not be run, instead of the compile-time choice of @LOADAVG_MX@.
-For an SMP system with
-.I n
-CPUs, you will probably want to set this higher than
-.IR n-1.
+This number is multiplied by the amount of CPUs when comparing
+to /proc/loadavg, because loadavg is a sum over all processors on Linux.
 .TP 8
 .B -b
 Specify the minimum interval in seconds between the start of two

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File at-adjust_load_to_cpu_count.patch of Package at (Revision 5e5ed9097b7694e5567b0ac8bb8209ad)

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