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Diffstat (limited to 'cddl/contrib/dtracetoolkit/Examples/sampleproc_example.txt')
| -rw-r--r-- | cddl/contrib/dtracetoolkit/Examples/sampleproc_example.txt | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/cddl/contrib/dtracetoolkit/Examples/sampleproc_example.txt b/cddl/contrib/dtracetoolkit/Examples/sampleproc_example.txt deleted file mode 100644 index d60d446..0000000 --- a/cddl/contrib/dtracetoolkit/Examples/sampleproc_example.txt +++ /dev/null @@ -1,62 +0,0 @@ -The following is an example of the sampleproc program. - - -Here we run sampleproc for a few seconds on a workstation, - - # ./sampleproc - Sampling at 100 hertz... Hit Ctrl-C to end. - ^C - PID CMD COUNT - 1659 mozilla-bin 3 - 109 nscd 4 - 2197 prstat 23 - 2190 setiathome 421 - - PID CMD PERCENT - 1659 mozilla-bin 0 - 109 nscd 0 - 2197 prstat 5 - 2190 setiathome 93 - -The first table shows a count of how many times each process was sampled -on the CPU. The second table gives this as a percentage. - -setiathome was on the CPU 421 times, which is 93% of the samples. - - - - -The following is sampleproc running on a server with 4 CPUs. A bash shell -is running in an infinate loop, - - # ./sampleproc - Sampling at 100 hertz... Hit Ctrl-C to end. - ^C - PID CMD COUNT - 10140 dtrace 1 - 28286 java 1 - 29345 esd 2 - 29731 esd 3 - 2 pageout 4 - 29733 esd 6 - 10098 bash 1015 - 0 sched 3028 - - PID CMD PERCENT - 10140 dtrace 0 - 28286 java 0 - 29345 esd 0 - 29731 esd 0 - 2 pageout 0 - 29733 esd 0 - 10098 bash 24 - 0 sched 74 - -The bash shell was on the CPUs for 24% of the time, which is consistant -with a CPU bound single threaded application on a 4 CPU server. - -The above sample was around 10 seconds long. During this time, there were -around 4000 samples (checking the COUNT column), this is due to -4000 = CPUs (4) * Hertz (100) * Seconds (10). - - |
