Date: Tue, 2 Mar 1999 08:12:17 +0100 (MET) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: geoffr@is.co.za Cc: sos@FreeBSD.ORG, current@FreeBSD.ORG Subject: Re: ATA driver Message-ID: <199903020712.IAA04173@labinfo.iet.unipi.it> In-Reply-To: <199903020906.LAA00297@hangdog.is.co.za> from "Geoff Rehmet" at Mar 2, 99 11:05:54 am
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> Just some results of testing the comparison of wd and ata: ... > -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- >Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU >ATA 64 3237 69.0 2913 14.0 1409 9.4 2951 59.3 3043 11.6 55.9 2.4 >WD 64 2556 54.5 2902 13.3 1457 9.7 1987 40.3 3082 13.2 59.1 2.0 > > It may be worth testing with a larger file, freshly booted, with no X > running. or a newer disk:) i use to see much better performance -- say 5MB/s even without DMA - on modern (say 3GB or greater) disks even on 133MHz machines. (on a PPro200 i think my 6.4GB IBM disk runs close to 10MB/s... cheers luigi -----------------------------------+------------------------------------- Luigi RIZZO . EMAIL: luigi@iet.unipi.it . Dip. di Ing. dell'Informazione HTTP://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL/FAX: +39-050-568.533/522 . via Diotisalvi 2, 56126 PISA (Italy) -----------------------------------+------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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