Re: [PATCH v2] xfs: use per-AG reservations for the finobt

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On Tue, Jan 24, 2017 at 03:49:37PM +0100, Christoph Hellwig wrote:
> On Tue, Jan 24, 2017 at 09:06:49AM -0500, Brian Foster wrote:
> > Darrick called out in the previous version that this requires traversal
> > of the entire tree at mount time. Do you have any test results on what
> > kind of worst case mount delays we could be looking at here?
> 
> Even with pretty horribly fragmented file systems I've not seen
> major delays.  But I don't have a setup with a lot of actual disks
> but mostly SSDs these days, so this might not statistically significant.

Heh, I might have some systems with slow storage around. ;P It may take
a little time to populate a large enough fs with inodes though..

Brian

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