Re: Oninits Running Amok...
In article <31D9457E.5C90@eds.com>, Greg Moye <msmcl301.gmoye01@eds.com>
writes
>We have 7.13.UC2 running on Solaris 2.4 w/ 2 Sparc CPU's. I occasionally
>see both CPU VP's chewing CPU like crazy, yet there's few if any Buffer
>Reads or any other evidence of productive work going on for users. Then
>they'll quiet down for awhile, again for no apparent reason. There's
>not a lot of real user activity on the system.
>
>"top" shows about 1/3 of time as user, 2/3 as kernel.
>
>Response to our client app seems OK and correct, can't find anything else
>apparently wrong. It still smells kinda fishy though. Anybody seen
>this or have any idea what the CPUVP's are doing??
Try running
- onstat what does the first line say, is the system checkpointing?
- onstat -C several times - is the system page cleaning
- onstat -D sevel times - look at page Rd/page Wr - is the system
accessing the disk?
- onstat -F (is the system writing to disk
- onstat -g iof is the system writing to temporary sort files/
workfiles (Not this value includes those from onstat -D).
- onstat -g spi Are longspins occuring i.e. too many CPU VPs
configured.
- onstat -g rea - which threads are running.
- onstat -u - what are users sessions doing?
- onstat -g sch are VPs spinning or busy waiting.
E-mail what answers you get - I'd be interested to know as I've never
heard of oninits using a lot of CPU time wihtout doing disk I/O.
--
David Williams