Thanks Keil, As the sys cpu spike only happens several times a day and the during is very short, so it's good to run a tool 24 hours a day to do the monitor. So how about performance impact of "lockstat -kIW -D 20 sleep 10".
I'd like something like "vmstat 5 10000" to let it output every 5 seconds to catch what is happening during the high sys cpu, I checked the man page, looks like lockstat is not able to output as vmstat. Thanks, Daniel On Thu, Jan 14, 2010 at 6:04 PM, Jürgen Keil <jrgn.k...@googlemail.com>wrote: > > And the high sys cpu > > happened for very short time, if sample the > > performance every 1 mins, we can't find high sys > > cpu, but if sample the performance every 10 seconds, > > we can see high sys cpu. I'd like to some tool > > to check whether the sys cpu comes from. > > Start with a kernel profile, > > lockstat -kIW -D 20 sleep 10 > -- > This message posted from opensolaris.org > _______________________________________________ > dtrace-discuss mailing list > dtrace-discuss@opensolaris.org >
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