Re: how to scale root-reserved space going forward...

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Andreas Dilger wrote:

> I suspect that at a certain filesystem size, there isn't much benefit
> in having more reserved space.  If we keep 50GB of reserved space then
> this is likely to contain a decent amount of 1MB free chunks, which is
> what we really care about.
> 
> Cheers, Andreas

As long as we don't care much about inode<->block locality, that is
probably ok...

I got one off-list reply from someone who was depending on the 5% for
administration reasons, but even if we change the default I assume we'll
leave the tunable in place for people who really do want 5% for
"root-reserved" over "allocator safety buffer" reasons.

-Eric

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