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Re: file system performance in linux

To: "pradeepkumar soman" <pradeep2481@xxxxxxxxx>
Subject: Re: file system performance in linux
From: "Mulyadi Santosa" <mulyadi.santosa@xxxxxxxxx>
Date: Fri, 24 Oct 2008 21:22:20 +0700
Cc: kernelnewbies@xxxxxxxxxxxx
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On Fri, Oct 24, 2008 at 12:52 AM, pradeepkumar soman
<pradeep2481@xxxxxxxxx> wrote:
> Hi,
>  Anybody please tell me who is actually setting the readahead flag?

I think it sits between VFS and filesystem.


> Actually what is the difference between linux-2.6.15 and
> linux-2.6.23 in terms of readahead. My file system read performance is very
> high in linux-2.6.23 compared to
> linux-2.6.15. Is this due to  readahead implementation change?

what do you mean by high? do you mean it's better?

And how do you read the file ? 100% sequential? stride read?

regards,

Mulyadi.

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