Date: Fri, 31 Dec 2010 18:14:56 +0300 From: Anonymous <swell.k@gmail.com> To: David Samms <dsamms@nw-ds.com> Cc: freebsd-fs@freebsd.org Subject: Re: 8.2-RC1 and ZFS Message-ID: <8639pe55zj.fsf@gmail.com> In-Reply-To: <ifjgsu$s33$1@dough.gmane.org> (David Samms's message of "Thu, 30 Dec 2010 19:58:37 -0700") References: <4D1BCE34.4090601@nw-ds.com> <20101230085723.GA38391@tolstoy.tols.org> <ifidg5$qeq$1@dough.gmane.org> <ifjgsu$s33$1@dough.gmane.org>
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David Samms <dsamms@nw-ds.com> writes: [...] > The same test with ZFSv28 and ZFSv28 + tuning > > ZFSv28 > ---------------------------------------------------------------------- > dd if=/dev/zero of=big bs=1m count=6400 > 6710886400 bytes transferred in 158.205268 secs (42418855 bytes/sec) > > OpenOffice 197sec > MP3 skips > XFCE4 popup menus took 5-15 seconds to appear > > > ZFSv28 + tuning > --vfs.zfs.txg.timeout="5" the tunable defaults to "5" in v28, see txg.c int zfs_txg_timeout = 5; /* max seconds worth of delta per txg */ > --vfs.zfs.txg.write_limit_override=268435456 No such tunable/sysctl. It was renamed to vfs.zfs.write_limit_override in v28 (note ".txg." absence). > --kern.maxvnodes=250000 > ---------------------------------------------------------------------- > dd if=/dev/zero of=big bs=1m count=6400 > 6710886400 bytes transferred in 167.316444 secs (40108947 bytes/sec) > > OpenOffice 190sec > No MP3 skips during "dd", but one skip while OpenOffice was starting > XFCE4 popup menus took 2-13 seconds to appear
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