Re: Statspack ratios help

  • From: "David Sharples" <davidsharples@xxxxxxxxx>
  • To: dubey.sandeep@xxxxxxxxx
  • Date: Tue, 6 Jun 2006 19:28:29 +0100

looks like you got some nasty sql in there (a buffer cache of 100% is not a
good thing, looks like you are doing much logical io)

Anyway, does web logic cache its statements for you, usually a parameter
withing the database connections properties


On 06/06/06, Sandeep Dubey <dubey.sandeep@xxxxxxxxx> wrote:


Rollback per transaction %:   44.17
Buffer Nowait %:  100.00       Redo NoWait %:   99.97
           Buffer  Hit   %:  100.00    In-memory Sort %:  100.00
           Library Hit   %:  100.00        Soft Parse %:  100.00
        Execute to Parse %:    9.62         Latch Hit %:   99.88
Parse CPU to Parse Elapsd %:   69.06     % Non-Parse CPU:   91.60

With 100% soft parse, execute to parse ratio is so low. Is it bad, how
I can I improve it?

I see rollback per transaction as 44.17. We are using Hibernate that
generates database mapping and produces most of the SQLs. How can I
invetigate further? But I doubt if application is doing some big time
rollbacks.

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