Date: Fri, 28 Aug 1998 20:37:57 -0400 (EDT) From: CyberPeasant <djv@bedford.net> To: mi@video-collage.com (Mikhail Teterin) Cc: questions@FreeBSD.ORG Subject: Re: NFS3 serving: FreeBSD vs. Irix Message-ID: <199808290037.UAA20159@lucy.bedford.net> In-Reply-To: <199808251746.NAA16861@xxx.video-collage.com> from Mikhail Teterin at "Aug 25, 98 01:46:34 pm"
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Mikhail Teterin wrote: > Hello! > > I'm seeing my PPro200 with FreeBSD 2.2.7-STABLE being about 3 times slower > (according to iozone) then Irix 5.3 running on R4000 at 100MHz with SGI's > latest NFS3 patches. Memory is plentyfull. > > The client is also an Irix machine very similar to the server. The network > is 10BaseT and the numbers are (24Mb test file): > > Irix to FreeBSD: > > 237929 bytes/second for writing the file > 5642561 bytes/second for reading the file > > Irix to Irix: > > 717997 bytes/second for writing the file > 5423668 bytes/second for reading the file > ...snip... DId you get any reples to this? All I can think of is that FreeBSD and Irix are disagreeing about the optimal block size. You might try forcing the r and w blocksizes on the client to various values. (1024,2048,...). Serving from PPro 200 to 486/33 8MB over 10Base2, I got consistent write times of around 500000 bytes/second. (Both boxes running FreeBSD 2.2.6-R). Could there be an evil interaction of NFS block size and ethernet packet size? (Like in Linux NFS?) As a last resort you might try running tcpdump and seeing what's going on. Does nfsstat tell you anything? D.V. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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