Re: Slow/locking UFS/VFS in 6.1?

Philip Murray wrote:

> When this happens it seems a lot of Apache processes get stuck in the
> UFS state (in top).

I've seen this when there's a huge directory involved, such as created
by a runaway web cache function, PHP sessions, or "PHP accelerator" that
creates a lot of small cache files. If so, you'll probably need to
delete that directory completely and make sure it doesn't happen again
(e.g. use a multi-stage directory tree instead of a big one).

You might have luck with increasing dirhash size (vfs.ufs.dirhash_maxmem).

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