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Re: [PATCH] sgiwd93.c fix for multiple disks

To: Klaus Naumann <spock@mgnet.de>
Subject: Re: [PATCH] sgiwd93.c fix for multiple disks
From: Florian Lohoff <flo@rfc822.org>
Date: Tue, 11 Dec 2001 10:55:48 +0100
Cc: Guido Guenther <agx@sigxcpu.org>, Linux/MIPS list <linux-mips@oss.sgi.com>, klaus@mgnet.de
In-reply-to: <Pine.LNX.4.21.0112111034340.2714-300000@spock.mgnet.de>
Organization: rfc822 - pure communication
References: <20011211095759.A5689@gandalf.physik.uni-konstanz.de> <Pine.LNX.4.21.0112111034340.2714-300000@spock.mgnet.de>
Sender: owner-linux-mips@oss.sgi.com
User-agent: Mutt/1.3.24i
On Tue, Dec 11, 2001 at 10:37:11AM +0100, Klaus Naumann wrote:
> Hi all,
> 
> I've done some bonnie++ tests and everything looks good IMHO.
> See attachments (new_speed is with lolo's patch and old_speed without).
> I vote for commit. Cool work !

It looks like this is statistical distortion as some numbers went up.
It looks at least that there is no real difference ...

> Version  1.02       ------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
> ivy            368M  1415  95  2437   7  1003   4  1208  81  2298   6  90.7   
> 2
>                     ------Sequential Create------ --------Random 
> Create--------
>                     -Create-- --Read--- -Delete-- -Create-- --Read--- 
> -Delete--
>               files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec 
> %CP
>                  16   235  99 +++++ +++ 13871  98   242  99 +++++ +++   898  
> 99
> ivy,368M,1415,95,2437,7,1003,4,1208,81,2298,6,90.7,2,16,235,99,+++++,+++,13871,98,242,99,+++++,+++,898,99

> Version  1.02       ------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
> ivy            368M  1348  91  2468   7   836   3  1297  87  2178   5  91.0   
> 2
>                     ------Sequential Create------ --------Random 
> Create--------
>                     -Create-- --Read--- -Delete-- -Create-- --Read--- 
> -Delete--
>               files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec 
> %CP
>                  16   220  99 +++++ +++ 13440  98   232  99 +++++ +++   780  
> 99
> ivy,368M,1348,91,2468,7,836,3,1297,87,2178,5,91.0,2,16,220,99,+++++,+++,13440,98,232,99,+++++,+++,780,99

I would commit that too with some additional comments that the HPC
is capable of doing scatter-gather but this does not mix with the wd33
framwork which has no support for that.

Flo
-- 
Florian Lohoff                  flo@rfc822.org             +49-5201-669912
Nine nineth on september the 9th              Welcome to the new billenium

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