On 2010-11-06 08:46 +0100, Guillem Jover wrote:
> On Fri, 2010-11-05 at 23:18:47 +0100, Philipp Kern wrote:
>> On Fri, Oct 22, 2010 at 11:35:54AM +0200, Guillem Jover wrote:
>
>> What are the implications for ext4 and btrfs?
>
> They are going to be slower with this change.
Are you sure this is the case for btrfs? Mike Hommey has described the
sync() implementation as really horrible[0] (unfortunately the webserver on
glandium.org is currently down, but the Google cache[1] has a copy).
For ext4, mounting with the nodelalloc option helps a lot, although this
option allegedly slows down ext4 in the general case.
Regards,
Sven
0. http://glandium.org/blog/?p=1169
1.
http://webcache.googleusercontent.com/search?q=cache:zFsVyqYwxAAJ:glandium.org/blog/%3Fp%3D1169+mike+hommey+dpkg+sync&cd=1&ct=clnk
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