Re: Statspack Report!

Without looking at other parts of the report, there is no way of telling if this information is important or not. There is not enough timing information displayed to understand whether these issues are a significant part of your database¹s performance or not.

Please upload your report to ³http://www.oraperf.com² to get a much better organized analysis of the STATSPACK info. You¹ll need to register but it is worth it, although Veritas has unfortunately become much more aggressive about spam than Precise ever was. For instructions on how to read the results of the YAPP report, please read Bjorn¹s paper on using STATSPACK with YAPP at ³http://oraperf.veritas.com/whitepapers.html²...

on 9/29/03 9:29 PM, Gunnar Berglund at oracledbasweden_at_yahoo.co.uk wrote:

> Hi all,
>
> could you please clarify me what these might mean (and how to tune the db in
> order to avoid those).
>
> So I have done a performance report with statspack and the instance is 9.2.0.3
> on Solaris8 box. On a report there are a couple of issues I don't understand:
>
> Child Get Spin &
> Latch Name Num Requests Misses Sleeps Sleeps 1->4
> ---------------------- ------- ------------ ----------- ----------
> ------------
> cache buffers chains 609 750,125 572 58 0/0/0/0/0
> cache buffers chains 610 641,794 673 38 0/0/0/0/0
> cache b! uffers chains 611 508,147 246 23 0/0/0/0/0
> cache buffers chains 608 374,928 96 11 0/0/0/0/0
> and
>
> Top 5 Timed Events
> ~~~~~~~~~~~~~~~~~~ % Total
> Event Waits Time (s) Ela Time
> -------------------------------------------- ------------ ----------- --------
> direct path write (lob) 101,116 ! 13,637
> 38.23
>
> and
>
> Event Waits Timeouts Time (s) (ms)
> /txn
> ---------------------------- ------------ ---------- ---------- ------
> --------
> rdbms ipc message 218,281 202,375 809,339 3708
> 0.8
> Sorry for the mess, but please try to read...
>
> TIA
> gb
>
> Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger
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