Re: mkfs.btrfs/balance small-btrfs chunk size RFC

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On Tue, Jan 10, 2017 at 11:05:17AM -0500, Austin S. Hemmelgarn wrote:
> On 2017-01-10 10:47, Hugo Mills wrote:
> >On Tue, Jan 10, 2017 at 10:42:51AM -0500, Austin S. Hemmelgarn wrote:
> >>Most of the issue in this case is with the size of the initial
> >>chunk. That said, I've got quite a few reasonably sized filesystems
> >>(I think the largest is 200GB) with moderate usage (max 90GB of
> >>data), and none of them are using more than the first 16kB block in
> >>the System chunk. While I'm not necessarily a typical user, I'd be
> >>willing to bet based on this that in general, most people who aren't
> >>storing very large amounts of data or taking huge numbers of
> >>snapshots aren't going to need a system chunk much bigger than 1MB.
> >
> >   Again, the system chunk has *nothing* to do with snapshots.
> Apologies, I somehow completely missed the part of your first reply
> where you commented on that...

   There was quite a lot of it. :)

   Hugo.

-- 
Hugo Mills             | Anyone who claims their cryptographic protocol is
hugo@... carfax.org.uk | secure is either a genius or a fool. Given the
http://carfax.org.uk/  | genius/fool ratio for our species, the odds aren't
PGP: E2AB1DE4          | good.                                  Bruce Schneier

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