Date: Thu, 21 Sep 2000 07:08:37 -0700 From: Stephen Byan <Stephen.Byan@quantum.com> To: "'Marius Bendiksen'" <mbendiks@eunet.no>, Stephen Byan <Stephen.Byan@quantum.com> Cc: "'Soren Schmidt'" <sos@freebsd.dk>, fs@FreeBSD.ORG, sos@FreeBSD.ORG, freeBSD-scsi@FreeBSD.ORG Subject: RE: disable write caching with softupdates? Message-ID: <8133266FE373D11190CD00805FA768BF055BD1D6@shrcmsg1.tdh.qntm.com>
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Marius Bendiksen [mailto:mbendiks@eunet.no] wrote: > > Contrast this 10% performance hit versus what you get when=20 > you disable > > caching entirely. >=20 > I think you will see that on some drives, this may have a greater > performance impact than not caching at all. Perhaps S=F8ren will be kind enough to run the experiment? I'd be = interested in analyzing cases in ATA drives where flushing delivers worse = performance than disabling cache. Regards, -Steve To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
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