Date: Tue, 19 Apr 2005 15:14:44 +0200 From: Claus Guttesen <kometen@gmail.com> To: Eric Anderson <anderson@centtech.com> Cc: freebsd-performance@freebsd.org Subject: Re: some simple nfs-benchmarks on 5.4 RC2 Message-ID: <b41c755205041906145fc4719c@mail.gmail.com> In-Reply-To: <4264F8A8.3080405@centtech.com> References: <b41c75520504190418308f94cc@mail.gmail.com> <4264EC60.3020600@centtech.com> <b41c75520504190443187617de@mail.gmail.com> <4264EF40.3060900@centtech.com> <b41c75520504190455542071f7@mail.gmail.com> <4264F8A8.3080405@centtech.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> What does gstat look like on the server when you are doing this? > Also - does a dd locally on the server give the same results? You should= get > about double that I would estimate locally direct to disk. What about a = dd over > NFS? dd-command: dd if=3D/dev/zero of=3D/nfssrv/dd.tst bs=3D1024 count=3D1048576 on client: 1073741824 bytes transferred in 24.787112 secs (43318553 bytes/sec) gstat showed approx. 30.000-52.000 KB/s. on nfs-server: 1073741824 bytes transferred in 23.368815 secs (45947637 bytes/sec) gstat showed approx. 45.000-46.000 KB/s. The funny thing is that the outputrate fluxuates more dd'ing from the client (remote) and is more consistent dd'ing on the server (locally). > What is the server spending its time doing? (top?) nfsd. > If you are looking for the best performance, you might try a RAID 0+1 (or= 10 > possibly) instead of RAID 5. I chosed raid 5 to maximize space. regards Claus
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?b41c755205041906145fc4719c>