pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  

help / color / mirror / Atom feed
From: Alan Hodgson <ahodgson@simkin.ca>
To: pgsql-performance@postgresql.org
Subject: Re: dell versus hp
Date: Wed, 14 Nov 2007 14:24:23 -0800
Message-ID: <200711141424.24078@hal.medialogik.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0711131227420.30192@discord.home.frostconsultingllc.com>
References: <82607932-FC46-4B73-BF78-2290EE55F7F5@pvv.ntnu.no>
	<200711130749.49594@hal.simkin.ca>
	<Pine.LNX.4.64.0711131227420.30192@discord.home.frostconsultingllc.com>

On Tuesday 13 November 2007, Jeff Frost <jeff@frostconsultingllc.com> wrote:
> Ok, Areca ARC1261ML.  Note that results were similar for an 8 drive RAID6
> vs 8 drive RAID10, but I don't have those bonnie results any longer.
>
> Version  1.03       ------Sequential Output------ --Sequential Input-
> --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
> Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP 
> /sec %CP 14xRAID6        63G 73967  99 455162  58 164543  23 77637  99
> 438570  31 912.2   1 ------Sequential Create------ --------Random
> Create-------- -Create-- --Read--- -Delete-- -Create-- --Read---
> -Delete-- files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec
> %CP 16 12815  63 +++++ +++ 13041  61 12846  67 +++++ +++ 12871  59
>
>
> Version  1.03       ------Sequential Output------ --Sequential Input-
> --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
> Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
> /sec %CP 14xRAID10       63G 63968  92 246143  68 140634  30 77722  99
> 510904 36 607.8   0 ------Sequential Create------ --------Random
> Create-------- -Create-- --Read--- -Delete-- -Create-- --Read---
> -Delete-- files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP /sec
> %CP 16  6655  16 +++++ +++  5755  12  7259  17 +++++ +++ 5550  12

OK, impressive RAID-6 performance (not so impressive RAID-10 performance, 
but that could be a filesystem issue). Note to self; try an Areca 
controller in next storage server.

thanks.

-- 
The global consumer economy can best be described as the most efficient way  
to convert natural resources into waste.



view thread (32+ messages)  latest in thread

Message-ID: <200711141424.24078@hal.medialogik.com>
Permalink:  ../200711141424.24078@hal.medialogik.com/
Also on:    postgresql.org/message-id/200711141424.24078@hal.medialogik.com

 · 

reply
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: ahodgson@simkin.ca
  Subject: Re: dell versus hp
  In-Reply-To: <200711141424.24078@hal.medialogik.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