Subject: Re: RFC: MSDOS write performance fixup (upto 6x)
To: None <>
From: Christos Zoulas <>
List: tech-kern
Date: 10/25/2007 21:21:13
In article <>,
Juan RP  <> wrote:
>On Thu, 25 Oct 2007 22:38:28 +0200
>Reinoud Zandijk <> wrote:
>> Dear folks,
>> it came to my attention that the buffer cache has been tweaked by yamt 
>> (AFAIR) to better anticipate on write actions. FFS has been taken care of i 
>> noticed but msdosfs wasn't.
>> Attached are the patches i made and tested for msdosfs and a simple 
>> bonnie++ testrun though it test size should have been much higher on this 
>> machine...
>> anyway, please review this patch and look at the attached bonnie output. I 
>> did check if there were corruptions, but i couldn't find any.
>Wow, the results are impressive. Good work! 

We should really port the rest of the msdosfs fixes from FreeBSD.