Date: Tue, 8 Jun 2010 12:20:36 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: freebsd-stable@freebsd.org Subject: Re: Freebsd 8.0 kmem map too small Message-ID: <20100608102036.GD1789@garage.freebsd.pl> In-Reply-To: <20100608095444.GA86953@icarus.home.lan> References: <4BE110E3.8040902@zirakzigil.org> <q2vb269bc571005050819nde819098vfd3306170639a9c9@mail.gmail.com> <4BE82C5D.1080806@bit0.com> <20100608.181146.1224841629154014733.kasahara@nc.kyushu-u.ac.jp> <20100608095444.GA86953@icarus.home.lan>
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On Tue, Jun 08, 2010 at 02:54:44AM -0700, Jeremy Chadwick wrote:
> SYSCTL_DECL(_vfs_zfs);
> SYSCTL_NODE(_vfs_zfs, OID_AUTO, zio, CTLFLAG_RW, 0, "ZFS ZIO");
> TUNABLE_INT("vfs.zfs.zio.use_uma", &zio_use_uma);
> SYSCTL_INT(_vfs_zfs_zio, OID_AUTO, use_uma, CTLFLAG_RDTUN, &zio_use_uma, 0,
> "Use uma(9) for ZIO allocations");
>
> Also note that this tunable does not appear in sysctl -a output; I
> believe this is caused by the first parameter to SYSCTL_INT() being
> incorrect -- should be _vfs_zfs, not _vfs_zfs_zio. Regardless of
> that, it's still adjustable in loader.conf.
Why? I create vfs.zfs.zio node and create vfs.zfs.zio.use_uma sysctl to
match tunable name.
--
Pawel Jakub Dawidek http://www.wheelsystems.com
pjd@FreeBSD.org http://www.FreeBSD.org
FreeBSD committer Am I Evil? Yes, I Am!
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