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Re: file system performance in linux

To: "pradeepkumar soman" <pradeep2481@xxxxxxxxx>
Subject: Re: file system performance in linux
From: "Greg Freemyer" <greg.freemyer@xxxxxxxxx>
Date: Fri, 3 Oct 2008 15:55:18 -0400
Cc: kernelnewbies@xxxxxxxxxxxx
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On 10/3/08, pradeepkumar soman <pradeep2481@xxxxxxxxx> wrote:
> Hi,
>     I just want to know the factors on which the file system
>     read depends
>
>  Regards,
>  Pradeep
>

I suspect that is way too general of a question, but read performance
is impacted by:

filesystem (ext2 / xfs / reiserfs / etc.)
filesize / fragmentation
cache size
hardware bus (ide / sata / scsi / ramdisk / usb / firewire) including
rotation speed / seek times
cache sizes (os / controller / drive)
raid setup (this can get complex)
hardware errors (especially with raid, you want to fail fast on get
the data from an alternate source)

Maybe that will help you ask a more informative question.

Greg
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