Slow database, too MANY buffers???

From: Michael Kline <mkline1_at_comcast.net>
Date: Thu, 23 Jan 2003 10:46:53 -0800
Message-ID: <F001.00538BDB.20030123104653@fatcity.com>

I've got a cust that is showing some signs that one would think is having a horrible problem on I/O...

I suspect it is the "error" of having a **HUGE** value in db_block_buffers and it's constantly crunching memory trying to figure out which ones to free up. It's only 256 meg, but depending on load, it may be too much. SGA is 687 meg.

While I've got hundreds of SQL, I'm not sure I have one to diagnose buffer utilization. It's also version 8.1.7 and I could probably do some tweaking of buffers.

It's Oracle CRM with a lot of customization and I'm also finding some SQL that's getting a bit ugly under there.

Maks.

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Author: Michael Kline
  INET: mkline1_at_comcast.net

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