XFS: Abysmal write performance because of excessive seeking (allocation groups to blame?)

[Stefan Ring]

On Fri, Apr 6, 2012 at 9:11 AM, Stefan Ring <stefanrin at gmail.com> wrote:
> On Fri, Apr 6, 2012 at 12:32 AM, Roger Willcocks <roger at filmlight.ltd.uk> wrote:
>> http://xfs.org/docs/xfsdocs-xml-dev/XFS_User_Guide/tmp/en-US/html/ch06s10.html
>
> This sounds like it could help very much. I'll try that. Thanks!

Unfortunately, the documentation says it’s only effective for
filesystems > 1TB, which mine isn’t. I tried it, and it doesn’t make a
difference, which is to be expected.