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SYSSTAT statistics

From: Dave Leach <Dave.Leach_at_claybrook.co.uk>
Date: Mon, 02 Jul 2001 04:16:19 -0700
Message-ID: <F001.0033EF36.20010702040528@fatcity.com>

DBA's,

Can anyone shed some light on the following query.

I have performed a single column update on 1 row (update basic set col1 = 99999998 where col1 = 999999999). The following stats were displayed prior to the update:

consistent gets 15291
db block changes 199
db block gets 1120

After the update the stats were as follows:

consistent gets 15350
db block changes 209
db block gets 1136

My question is what is it that causes the 'consistent gets' figure to increase, I was under the impression that all blocks would be acquired in current mode.

Many thanks for any replies.

Dave Leach



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Author: Dave Leach
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