Re: [tlug] Disk I/O bottleneck: how to solve?

[mauro@example.com]

Have played with hdparm ?

from the man page :

DESCRIPTION
       hdparm  provides  a  command line interface to various hard disk ioctls
       supported by the stock Linux ATA/IDE  device  driver  subsystem.   Some
       options  may  work  correctly  only  with the latest kernels.  For best
       results, compile hdparm with the include files from the  latest  kernel
       source code.

//mauro//
On Wed, Sep 04, 2002 at 02:45:21PM +0900, Jean-Christian Imbeault wrote:
> One of my machines has been showing poor performance lately and I think 
> I've pinned the problem down to a hard disk I/O bottleneck.
> 
> The hard drive is already pretty fast (ATA-100 7,200 rpm). I only have two 
> drives bays and both are in use so trying to speed things with RAID are not 
> an option.
> 
> I could upgrade the hardware but I don't think there are any faster IDE 
> drives (I heard that ATA-133 is really only about 5% faster that ATA-100). 
> I *could* go SCSI but since it is a much more expensive option it would 
> need to be a big imporvement in speed.
> 
> I was wondering if the were any software options? My machine has a lot of 
> free RAM and I was wondering if there was any way to make the kernel use 
> more RAM as a disk buffer? My machine always has at last 200M of free RAM 
> (total of 512M) so using that as a disk buffer could really speed things up.
> 
> Is it possible?
> 
> If there are other solutions I have overlooked please let me know ofoucrse 
> ;)
> 
> Jc
> 
> 
> 
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