Date: Thu, 11 Nov 2004 10:34:05 -0600 From: "Conrad J. Sabatier" <conrads@cox.net> To: Sebastian Schulze Struchtrup <seb@struchtrup.com> Cc: current@freebsd.org Subject: Re: [HEADSUP] Please help test device vnode bypass! Message-ID: <20041111103405.2eb128f4@dolphin.local.net> In-Reply-To: <419247AF.9070400@struchtrup.com> References: <2602.1099910947@critter.freebsd.dk> <419247AF.9070400@struchtrup.com>
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On Wed, 10 Nov 2004 17:54:07 +0100, Sebastian Schulze Struchtrup <seb@struchtrup.com> wrote: > Poul-Henning Kamp wrote: > > >Please test this feature. > > > >Even better, help test the perforce branch phk_bufwork if you can. > > > >Poul-Henning > > > >In message <200411081046.iA8AklqT003808@repoman.freebsd.org>, > >Poul-Henning Kamp > > writes: > > > > > >>phk 2004-11-08 10:46:47 UTC > >> > >> FreeBSD src repository > >> > >> Modified files: > >> sys/fs/devfs devfs_vnops.c > >> Log: > >> Add optional device vnode bypass to DEVFS. > >> > >> > >> > > fops=0 > 1000000 bytes transferred in 4.865386 secs (205534 bytes/sec) > > fops=1 > 1000000 bytes transferred in 2.513814 secs (397802 bytes/sec) > > This would result in approx. 2us per syscall. > > System is FreeBSD 6.0-CURRENT #25: Tue Nov 9 13:44:16 CET 2004 > (something like an Athlon XP 2k) with invariants and witness, without > anything out of phk_bufwork. > > No problems until now. No problems here, either (except that natd now mysteriously panics on boot; probably unrelated?). I've noticed a *very* substantial speedup in fscking my ~170 gig /usr partition. Very nice! -- Conrad J. Sabatier <conrads@cox.net> -- "In Unix veritas"
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