linux-kernel - Re: [Lsf] Postgresql performance problems with IO latency, especially during fsync()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 29 Apr 2014 01:57:14 +0200
From:	Andres Freund <andres@...razel.de>
To:	Dave Chinner <david@...morbit.com>
Cc:	rhaas@...razel.de, linux-kernel@...r.kernel.org,
	lsf@...ts.linux-foundation.org, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org,
	Wu Fengguang <fengguang.wu@...el.com>
Subject: Re: [Lsf] Postgresql performance problems with IO latency,
 especially during fsync()

Hi Dave,

On 2014-04-29 09:47:56 +1000, Dave Chinner wrote:
> ping?

I'd replied at http://marc.info/?l=linux-mm&m=139730910307321&w=2

As an additional note:

> On Wed, Apr 09, 2014 at 07:20:09PM +1000, Dave Chinner wrote:
> > I'm not sure how you were generating the behaviour you reported, but
> > the test program as it stands does not appear to be causing any
> > problems at all on the sort of storage I'd expect large databases to
> > be hosted on....

A really really large number of database aren't stored on big enterprise
rigs...

Andres Freund

-- 
 Andres Freund	                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/