Date: Mon, 14 Apr 1997 10:29:08 +0930 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: taob@risc.org (Brian Tao) Cc: freebsd-hackers@freebsd.org Subject: Re: Maximizing NFS server performance Message-ID: <199704140059.KAA21424@genesis.atrad.adelaide.edu.au> In-Reply-To: <Pine.BSF.3.95.970413141830.21528A-100000@alpha.risc.org> from Brian Tao at "Apr 13, 97 03:24:21 pm"
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Brian Tao stands accused of saying: > > Using a loopback NFS mount in a P200 running 3.0-970124-SNAP, it > takes almost two minutes to copy my 23MB /usr/src/sys hierarchy (2277 > files). A dd from /dev/zero to a file on the same NFS filesystem can > only write about 550K of data per second. I was hoping to see 10 > times that level of performance. :( I recall an async option to > mount_nfs back in FreeBSD 2.1, but I can't find it documented > anyhwere. Is there anything else I can do to improve NFS performance? Turn on async NFS (vfs.nfs.async), make sure the source filesystem(s) are mounted noatime, and the destination filesystem is mounted async. That's about all I can think of... > Brian Tao (BT300, taob@risc.org) -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[
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