From: Shaun Thomas <sthomas@optionshouse.com>
To: Andrea Suisani <sickpig@opinioni.net>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: [OT] linux 3.10 kernel will improve ipc,sysv semaphore scalability
Date: Tue, 26 Mar 2013 13:59:50 -0500
Message-ID: <5151F026.5010409@optionshouse.com> (raw)
In-Reply-To: <51519CE9.1070409@opinioni.net>
References: <51519CE9.1070409@opinioni.net>
List-Unsubscribe: <mailto:majordomo@postgresql.org?body=unsub%20pgsql-performance>
On 03/26/2013 08:04 AM, Andrea Suisani wrote:
> TPS:
> 100 users: 1257.21 (vanilla) 2805.06 (v3 patchset)
> 400 users: 1437.57 (vanilla) 2664.67 (v3 patchset)
> 800 users: 1236.89 (vanilla) 2750.73 (v3 patchset)
Wow, I like the look of that. I wonder how this reacts with disabled
autogrouping and increasing sched_migration_cost. If the completely fair
scheduler has less locking contention with this patch-set, those tweaks
may not even be necessary. I need to see if I can find a system to test on.
--
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604
312-676-8870
sthomas@optionshouse.com
______________________________________________
See http://www.peak6.com/email_disclaimer/ for terms and conditions related to this email
--
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: sthomas@optionshouse.com, sickpig@opinioni.net
Subject: Re: [OT] linux 3.10 kernel will improve ipc,sysv semaphore scalability
In-Reply-To: <5151F026.5010409@optionshouse.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox