Re: testing memory parameters
From: Serge Rielau <srielau_at_ca.ibm.com>
Date: Mon, 17 Mar 2008 22:31:59 -0400
Message-ID: <648nt2F29qdldU1@mid.individual.net>
>
> Because, in DB2, you don't have sufficient instrumentation to look
> inside and see what is happening.
Ah, Daniel, you never fail to live up to my expectation of taking a cheap shot wherever you can. What would you know about DB2's state of perf tuning tools...
But I digress. I got the answers I needed.
Date: Mon, 17 Mar 2008 22:31:59 -0400
Message-ID: <648nt2F29qdldU1@mid.individual.net>
DA Morgan wrote:
> Serge Rielau wrote:
>>> Below what value is BCHR "bad"? >> In DB2 I treat any OLTP app with less than 90% hit ratio as troubled. >> Anything less than 80% I'd call a mess requiring some serious >> explanation.
>
> Because, in DB2, you don't have sufficient instrumentation to look
> inside and see what is happening.
Ah, Daniel, you never fail to live up to my expectation of taking a cheap shot wherever you can. What would you know about DB2's state of perf tuning tools...
But I digress. I got the answers I needed.
Thanks Ana
Serge
-- Serge Rielau DB2 Solutions Development IBM Toronto LabReceived on Mon Mar 17 2008 - 21:31:59 CDT