Re: btrfs big metadata

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Am 02.07.2012 18:42, schrieb Gregory Farnum:
On Sun, Jul 1, 2012 at 11:56 PM, Stefan Priebe - Profihost AG
<s.priebe@xxxxxxxxxxxx> wrote:
Hello list,

i found several people who use big metadata -n 64k -l 64k for ceph. But i
haven't found any ceph doc or info why to use this?

What's the reason to use big metadata feature with ceph?

One of the big problems users have had with Ceph-on-btrfs is that
Ceph's usage patterns cause btrfs to dramatically fragment its
metadata. Big metadata blocks reduce this fragmentation to a level
where some users find it faster than xfs (which it previously wasn't).

Thanks!

Stefan

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