Re: Moving to 9i.....

From: Tanel Põder <tanel.poder.003_at_mail.ee>
Date: Tue, 27 Jul 2004 00:45:32 +0300
Message-ID: <393a01c47359$e31fc450$0a879fd9@porgand>

> For some reason, Oracle is doing LOTS more system calls. I tried
> trussing a couple of the hot server processses, I see lots and lots of
> poll(), pread() and times() sys calls. Inside the db, this translates
> to lots and lots of latch free on cache buffers chains and library
> cache. But, I suspect that it's secondary due to the CPU staravtion
> caused by the heavy syscall activity.

Do you have timed_os_statistics enabled? (if statistics_level = all then timed_os_statistics defaults to true...)

Tanel.

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Received on Mon Jul 26 2004 - 16:42:19 CDT