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Date:      Tue, 10 Apr 2007 15:03:46 +0200
From:      Pawel Jakub Dawidek <pjd@FreeBSD.org>
To:        Alexander Nedotsukov <bland@FreeBSD.org>
Cc:        freebsd-fs@FreeBSD.org, freebsd-current@FreeBSD.org
Subject:   Re: ZFS - quick start.
Message-ID:  <20070410130346.GD85578@garage.freebsd.pl>
In-Reply-To: <4619AE5C.7000902@FreeBSD.org>
References:  <20070406214325.GB61039@garage.freebsd.pl> <4619AE5C.7000902@FreeBSD.org>

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On Mon, Apr 09, 2007 at 12:09:16PM +0900, Alexander Nedotsukov wrote:
> Pawel,
>=20
> Quick question. Is it typical to ZFS to run over 100 kthreads? I see a lo=
t of spa_*s in ps output.

Yes, that's the Solaris default. It's starts eight spa_zio_issue and
eight spa_zio_intr threads for each ZIO type and there are six of them,
which gives 2*8*6=3D96 threads. We may want to reduce it for FreeBSD, but
I see no reason doing so except for a nicer ps(1) output.

--=20
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd@FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!

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