Messages in this thread | | | Subject | Re: [Ext2-devel] Re: [PATCH] 2.6.11-mm3 patch for ext3 writeback "nobh" option | From | Badari Pulavarty <> | Date | 15 Mar 2005 08:09:57 -0800 |
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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
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