LWN.net article: creating 1 billion files -> XFS looses

[Emmanuel Florac]

Le Tue, 7 Sep 2010 08:04:10 +1000 vous écriviez:

> Oh, that's larger than I've ever run before ;)

Excellent :) Still works fine afterwards; mount, umount, etc works
flawlessly. Memory consumption though is huge :)
> 
> Try using:
> 
> # mkfs.xfs -d size=64k
> 
> Will speed up large directory operations by at least an order of
> magnitude.

OK, we'll try that too :)
 
> > Now we're starting afresh with 1000 directories with 1 million files
> > each :)
> 
> Which is exactly the test that was used to generate the numbers that
> were published.
> 
> > (Kernel version used : vanilla 2.6.32.11 x86_64 smp)
> 
> Not much point in testing that kernel - delayed logging is where the
> future is for this sort of workload, which is what I'm testing.

I'll compile a 2.6.36rc for comparison.

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