Messages in this thread | | | From | Gene Heskett <> | Subject | Re: IDE performance drop between 2.4.23 and 2.6.0 | Date | Wed, 24 Dec 2003 10:17:09 -0500 |
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On Wednesday 24 December 2003 04:27, Vid Strpic wrote: >On Tue, Dec 23, 2003 at 01:42:22PM +0100, Jean-Luc Fontaine wrote: >> on 2.4: >> Timing buffer-cache reads: 168 MB in 2.01 seconds = 83.58 >> MB/sec Timing buffered disk reads: 44 MB in 3.12 seconds = >> 14.10 MB/sec on 2.6: >> Timing buffer-cache reads: 172 MB in 2.02 seconds = 84.95 >> MB/sec Timing buffered disk reads: 34 MB in 3.08 seconds = >> 11.04 MB/sec >> >> Note the big drop of of 3 MB/sec on disk reads. > >Consider yourself lucky :o) > >I had a drop from 55Mb/s to around 35, 2.4.22->2.6.0-test&final. >Promise 20265, Seagate Barracuda 7.7200 80Gb, so nice ;)
I think the question should be, what are you fellows doing wrong? From onboard 2 year old via chipset, athlon at 1450mhz real:
[root@coyote root]# hdparm -tT /dev/hda
/dev/hda: Timing buffer-cache reads: 128 MB in 0.69 seconds =185.80 MB/sec Timing buffered disk reads: 64 MB in 1.15 seconds = 55.42 MB/sec [root@coyote root]# hdparm -tT /dev/hdb
/dev/hdb: Timing buffer-cache reads: 128 MB in 0.69 seconds =185.00 MB/sec Timing buffered disk reads: 64 MB in 2.07 seconds = 30.89 MB/sec [root@coyote root]# hdparm -tT /dev/hdd
/dev/hdd: Timing buffer-cache reads: 128 MB in 0.71 seconds =181.07 MB/sec Timing buffered disk reads: 64 MB in 1.40 seconds = 45.62 MB/sec
-- Cheers, Gene AMD K6-III@500mhz 320M Athlon1600XP@1400mhz 512M 99.22% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attornies please note, additions to this message by Gene Heskett are: Copyright 2003 by Maurice Eugene Heskett, all rights reserved.
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