Date: Sun, 10 Aug 1997 09:34:39 +0200 (MET DST) From: Peter Mutsaers <plm@xs4all.nl> To: "Michael L. VanLoon -- HeadCandy.com" <michaelv@MindBender.serv.net> Cc: Peter Mutsaers <plm@xs4all.nl>, freebsd-current@freebsd.org Subject: Re: IDE vs SCSI was: flags 80ff works (like anybody doubted it) Message-ID: <199708100734.JAA27620@plm.xs4all.nl> In-Reply-To: <199708100714.AAA04251@MindBender.serv.net> References: <877mdw2smi.fsf@plm.xs4all.nl> <199708100714.AAA04251@MindBender.serv.net>
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>> On Sun, 10 Aug 1997 00:14:29 -0700, "Michael L. VanLoon -- >> HeadCandy.com" <michaelv@MindBender.serv.net> said: >> More interesting is: >> >> ~> dd if=/dev/rsd0 of=/dev/null count=1600 bs=64k&;dd if=/dev/rsd0 of=/dev/nul "LV> l count=1600 bs=64k& >> i.e. start two of them at the same time. >> I get as result: >> 104857600 bytes transferred in 41.430049 secs (2530955 bytes/sec) >> 104857600 bytes transferred in 41.437855 secs (2530478 bytes/sec) "LV> What would be much more interesting to me is if you would do this on a "LV> four-drive ccd stripe-set, both with Ultra-Wide SCSI and "UltraIDE". "LV> It would be interesting to have a process running non-stop, measuring "LV> the amount of left-over CPU, at the same time. If only I had that hardware... -- /\_/\ ( o.o ) Peter Mutsaers | Abcoude (Utrecht), | Trust me, I know ) ^ ( plm@xs4all.nl | the Netherlands | what I'm doing.
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