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Re: Recalculating OldestXmin in a long-running vacuum - Mailing list pgsql-patches

From Heikki Linnakangas
Subject Re: Recalculating OldestXmin in a long-running vacuum
Date
Msg-id 45F69B47.8060406@enterprisedb.com
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In response to Re: Recalculating OldestXmin in a long-running vacuum  (Heikki Linnakangas <heikki@enterprisedb.com>)
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Heikki Linnakangas wrote:
> I am, but I doubt that's it. The response times are dominated by I/O, so
> any increase in lock contention would hardly show up. And the patch is
> only adding one GetOldestXmin call every 1000 scanned pages, which is

Sorry, should be "every 100 scanned pages". The argument still holds,
though.

--
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com

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