Re: Defaulting wal_sync_method to fdatasync on Linux for 9.1? - Mailing list pgsql-performance

From Josh Berkus
Subject Re: Defaulting wal_sync_method to fdatasync on Linux for 9.1?
Date
Msg-id 4CD4800D.5050504@agliodbs.com
Whole thread Raw
In response to Re: Defaulting wal_sync_method to fdatasync on Linux for 9.1?  (Greg Smith <greg@2ndquadrant.com>)
Responses Re: Defaulting wal_sync_method to fdatasync on Linux for 9.1?  ("Pierre C" <lists@peufeu.com>)
List pgsql-performance
> Fair enough; I'm so used to bumping wal_buffers up to 16MB nowadays that
> I forget sometimes that people actually run with the default where this
> becomes an important consideration.

Do you have any testing in favor of 16mb vs. lower/higher?

--
                                  -- Josh Berkus
                                     PostgreSQL Experts Inc.
                                     http://www.pgexperts.com

pgsql-performance by date:

Previous
From: Greg Smith
Date:
Subject: Re: Defaulting wal_sync_method to fdatasync on Linux for 9.1?
Next
From: Josh Berkus
Date:
Subject: Re: Major Linux performance regression; shouldn't we be worried about RHEL6?