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Diffstat (limited to 'Examples/j_stat_example.txt')
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diff --git a/Examples/j_stat_example.txt b/Examples/j_stat_example.txt new file mode 100644 index 000000000000..6c7e12e99cfa --- /dev/null +++ b/Examples/j_stat_example.txt @@ -0,0 +1,33 @@ +The following are examples of running j_stat.d. + +j_stat.d shows you the number of events per second that have happened since +the last line output. The default interval is 1 second, but you can specify +other intervals as arguments to the script. + +This shows the j_stat.d script reflecting the Code/Ruby/Func_abc script. + +# j_stat.d +TIME EXEC/s THREAD/s METHOD/s OBJNEW/s CLOAD/s EXCP/s GC/s +2007 Sep 24 04:00:34 0 0 0 0 0 0 0 +2007 Sep 24 04:00:35 2 6 11660 5306 318 41 0 +2007 Sep 24 04:00:36 0 0 124 4 0 2 0 +2007 Sep 24 04:00:37 0 0 124 4 0 2 0 +2007 Sep 24 04:00:38 0 0 123 75 9 1 0 +2007 Sep 24 04:00:39 0 0 0 0 0 0 0 +2007 Sep 24 04:00:40 0 0 0 0 0 0 0 +^C + +Here we can see that at 2007 Sep 24 04:00:35 there were 2 Java programs +executed, (this number will include those without Java provider support), +there were 6 threads created, 11,660 methods called, 5306 new objects created, +318 class loads, 41 exceptions raised and no garbage collects. + +The numbers are per second counts for the interval specified. The default +interval is 1 second. + +If you see a count in "EXECS" but not in the other columns, then your Java +software is probably not running with the DTrace hotspot provider. + +If you see counts in "CLOAD" but not in "METHODS", then you Java software +probably isn't running with "+ExtendedDTraceProbes". + |