Horton

Re: Time to up bgwriter_lru_maxpages?

Devrim GÜNDÜZ <devrim@gunduz.org>

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From: Devrim Gündüz <devrim@gunduz.org>
To: Jim Nasby <Jim.Nasby@BlueTreble.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2016-11-28T19:53:22Z
Lists: pgsql-hackers 
Hi,

On Mon, 2016-11-28 at 11:40 -0800, Jim Nasby wrote:
> With current limits, the most bgwriter can do (with 8k pages) is 1000 
> pages * 100 times/sec = 780MB/s. It's not hard to exceed that with 
> modern hardware. Should we increase the limit on bgwriter_lru_maxpages?

+1 for that. I've seen many cases that we need more than 1000.

Regards, 
-- 
Devrim Gündüz
EnterpriseDB: http://www.enterprisedb.com
PostgreSQL Danışmanı/Consultant, Red Hat Certified Engineer
Twitter: @DevrimGunduz , @DevrimGunduzTR

Commits

  1. Increase upper bound for bgwriter_lru_maxpages.