[Dovecot] linux 2.4 vs 2.6 kernel
Alexander Hoogerhuis
alexh at boxed.no
Wed Jul 20 18:55:49 EEST 2005
vmstech wrote:
> hi
> I read ( I think in dovecot wiki) that ext2 or ext3 fs on a 2.4 kernel
> can get slow due to the number of files in a directory. Does anyone know
> if kernel 2.6 has similar limitation? I'm not at that point now, but
> before the box goes live, I'm wondering if I should resolve that.
> Glenn
>
Having quickly scanned this thread and seen many stories both ways and
horrors from using anything on a disk, I thought I'd present one thing
that should weight heavy for everyone, no matter what filesystems and
drives you use, have used, lost data on or saved the day with:
Stick with what you already use, unless there is a really overwhelming
reason not to. In my case I run a good few machines and only use ext3,
and yes I know that I could squeeze out more speed by adopting reiserfs
in places, or some other feature, but ask yourself this: admin-wise,
what is the overhead in having to deal with one extra item to solve a
very specific problem in one single spot?
In my case it would mean to have to learn the works for a different
filesystem than I already use. ext3 with dir_index solves the problem
90% for us, and everything remains the same admin-wise. If someone at
the PHB-level wants that extra performance, explain it nicely in terms
of cost for extra knowledge, or a simple: buy better iron.
my two cents,
Alexander
PS: to at least have mentioned dovecot in my reply: it works a bit too
well, I haven't had a problem with it yet :D
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