Date: Sat, 19 Apr 1997 02:47:23 +0900 From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp> To: Jaye Mathisen <mrcpu@cdsnet.net> Cc: hackers@freebsd.org Subject: Re: Mildly interesting NFS numbers. Message-ID: <9009.861385643@sat.t.u-tokyo.ac.jp> In-Reply-To: Your message of "Tue, 1 Apr 1997 22:05:42 -0800 (PST)" References: <Pine.NEB.3.95.970401214658.18729B-100000@mail.cdsnet.net>
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From: Jaye Mathisen <mrcpu@cdsnet.net> Subject: Mildly interesting NFS numbers. Date: Tue, 1 Apr 1997 22:05:42 -0800 (PST) Message-ID: <Pine.NEB.3.95.970401214658.18729B-100000@mail.cdsnet.net> mrcpu> mrcpu> Client is a Digital Prioris HX6000, P6-200/512cache, 32MB RAM, SMC mrcpu> 100Mbit ethernet. mrcpu> mrcpu> Server is a Network Appliance F540, 100GB disk, 8MB NVRAM, 128MB cache, mrcpu> 100MBit ethernet. mrcpu> mrcpu> I tried both TCP and UDP mounts, version 3 and version 2 NFS. The mrcpu> best performance was UDP version 3, for what that's worth. mrcpu> mrcpu> # iozone 500 mrcpu> Writing the 500 Megabyte file, 'iozone.tmp'...86.304688 seconds mrcpu> Reading the file...90.789062 seconds mrcpu> mrcpu> IOZONE performance measurements: mrcpu> 6074849 bytes/second for writing the file mrcpu> 5774792 bytes/second for reading the file mrcpu> mrcpu> using 64k block sizes resulted in about a 4% perf increase, however, it mrcpu> dropped CPU utilization on the Netapp from 100% to about 65%. Great. Netapp seems very good server, but it's too expensive :-( BTW, how many nfsiods did you run? If you ran only 4 nfsiod, I guess you could get better number with running 8 or more iods. /\ Hidetoshi Shimokawa \/ simokawa@sat.t.u-tokyo.ac.jp PGP public key: finger -l simokawa@sat.t.u-tokyo.ac.jp
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