Re: weirdness in reiserfs

Chris Mason (mason@suse.com)
Fri, 28 Sep 2001 11:02:21 -0400


On Friday, September 28, 2001 03:44:19 PM +0100 Matt Bernstein
<matt@theBachChoir.org.uk> wrote:

> I have a 240GB reiserfs ataraid partition on one of my servers (2.4.9-ac10
> + ext3 0.9.9 + ext3 speedup + ext3 "experimental VM patch" + jfs 1.0.4),
> which I had populated with lots of little files, probably huge amounts of
> tail-packing going on.

[ slow deleting of 25GB, horrible latency ]

Hmmm, I'd be curious to see how 2.4.9-ac16 (or 2.4.10) performs there. The
reiserfs delete code should be scheduling enough due to transaction
stop/starts that interactive performance isn't that bad.

You should be able to repeat your results by doing the same tests on sparse
files:

dd if=/dev/zero of=foo bs=1M count=1 seek=250000

-chris

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