lkml.org 
[lkml]   [2005]   [Mar]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Ext2-devel] Re: [PATCH] 2.6.11-mm3 patch for ext3 writeback "nobh" option
From
Date
On Mon, 2005-03-14 at 18:09, Andrew Morton wrote:
> Badari Pulavarty <pbadari@us.ibm.com> wrote:
> >
> > Here is the 2.6.11-mm3 version of patch for adding "nobh"
> > support for ext3 writeback mode.
>
> Care to update Documentation/filesystems/ext3.txt?

Yes. I will do that. I am planning to add "nobh" support to
ext3 ordered mode also, since its the default one. We need
to modify generic interfaces like mpage_writepage(s) to
keep track of bio count and make journal code wait for them etc. -
at that point the "generic" code will no longer be generic.
I am thinking of a way to do it *less* intrusively.

At that point, we can make "nobh" default option. (which
needs less documentation).

>
> > Can you include it in -mm ?
>
> Spose so.
>
> Did you have performance and resource consumption numbers to justify it? I
> think I asked that before and promptly forgot the answer, which is a good
> reason for taking some care over changelog maintenance...

The initial numbers showed 5-7% throughput improvements. I will send out
resource consumption numbers once I complete my regression tests.

Yep. I will update the changelog also.


Thanks,
Badari

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:11    [W:0.099 / U:0.100 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site