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Help needed on vmstat result
Name: ajackson Date: November 21, 2002 at 06:07:12 Pacific OS: Solaris 2.6 CPU/Ram: Sparc
Comment:
Hello all
When we run a vmstat command on our solaris server we have started seeing a value in the w (runnable but swappable) column. My questions are 1) What does this value mean 2) Should it be there - we've only just begun to see this usually it is zero. 3) If it shouldn't be there what do we do to get rid of it.
Name: na Date: November 21, 2002 at 08:57:20 Pacific
Reply:
Well, I can help you with the first two questions.
"Having processes in the w column is a bad sign. Having entire processes swapped out even though they are runnable is a sign of severe memory shortage. Unfortunately, if a process does get swapped out and then goes to sleep, it will remain in the w column until it receives a signal to wake it up. "
Check out http://www.sunperf.com/perfmontools.html for a full summary
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Response Number 2
Name: na Date: November 21, 2002 at 09:03:49 Pacific
Reply:
here is another good link.... http://www.oreilly.com/catalog/spt2/chapter/ch04.html
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