Messages in this thread | | | Date | Sat, 20 Mar 1999 08:39:11 +0100 | From | Kurt Garloff <> | Subject | Re: 2.2.3, VIA, IDE, performace :( |
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On Sat, Mar 20, 1999 at 12:25:19AM +0200, Meelis Roos wrote: > Then the disk was upgraded to a 8G IBM DTTA. Now hdparm reports 5.9..6.2 > M/s on the first run. Slower than it showed for the 4G disk. > > Now the interesting part: running hdparm -t /dev/hda again (and again > and again) shows constantly 84.21 MB/s. This is the part I can't > understand - even if the disk is capable of caching the data, EIDE would > not let more than 33 MB/s through.
Run hdparm -tT /dev/hd? to time the speed of the buffer cache as well as the transfer speed. The latter will be corrected by the result of the first.
-- Dipl.Phys. Kurt Garloff <kurt@garloff.de> [Dortmund, FRG] Plasma physics, high perf. computing [Linux-ix86,-axp, DUX] PGP key: see mailheader / key servers [Linux SCSI driver: DC390] [unhandled content-type:application/pgp-signature] | |