| From: | Heikki Linnakangas <heikki(at)enterprisedb(dot)com> |
|---|---|
| To: | "Jignesh K(dot) Shah" <J(dot)K(dot)Shah(at)Sun(dot)COM> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org, Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Subject: | Re: LDC - Load Distributed Checkpoints with PG8.3b2 on Solaris |
| Date: | 2007-11-15 09:36:21 |
| Message-ID: | 473C1315.6020006@enterprisedb.com |
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| Lists: | pgsql-hackers |
Jignesh K. Shah wrote:
> Since its really writes that I am having trouble.. the auto vacuum
> message tells me 11 pages were removed and so many tuples were
> removed.. I am guessing its writes.
Do you keep track of I/O to WAL and data separately? WAL bandwidth will
spike up when a checkpoint starts, because of full page writes.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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