Horton

Re: Separating bgwriter and checkpointer

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

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From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
To: Magnus Hagander <magnus@hagander.net>
Cc: Greg Stark <stark@mit.edu>, Simon Riggs <simon@2ndquadrant.com>, Fujii Masao <masao.fujii@gmail.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2011-09-20T14:13:41Z
Lists: pgsql-hackers 
On 20.09.2011 16:49, Magnus Hagander wrote:
> Isn't there also the advantage of that work put in two different
> processes can use two different CPU cores? Or is that likely to never
> ever come in play here?

You would need one helluva I/O system to saturate even a single CPU, 
just by doing write+fsync.

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