Re: [CALL FOR TESTING] Make Ext3 fsck way faster [2.6.24-rc6 -mmpatch]

From: Andrew Morton
Date: Thu Jan 24 2008 - 02:49:24 EST


> On Wed, 23 Jan 2008 04:12:16 -0500 Abhishek Rai <abhishekrai@xxxxxxxxxx> wrote:
> > I'm wondering about the interaction between this code and the
> > buffer_boundary() logic. I guess we should disable the buffer_boundary()
> > handling when this code is in effect. Have you reviewed and tested that
> > aspect?
>
> Thanks for pointing this out, I had totally missed this issue in my change. I've now made the call to set_buffer_boundary() in ext3_get_blocks_handle() subject to metacluster option being set.
>

Did it make any performance difference? iirc the buffer_boundary stuff was
worth around 10% on a single linear read of a large, well-laid-out file.
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