Messages in this thread | | | From | Konstantin Sobolev <> | Subject | Re: poor sata performance on 2.6 | Date | Thu, 15 Apr 2004 14:55:36 +0400 |
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On Thursday 15 April 2004 07:54, Ryan Geoffrey Bourgeois wrote: > > /dev/hde: > > Timing buffer-cache reads: 1436 MB in 2.00 seconds = 717.03 MB/sec > > Timing buffered disk reads: 100 MB in 3.03 seconds = 32.95 MB/sec > > > > for sata_sil: > > > > /dev/sda: > > Timing buffer-cache reads: 1412 MB in 2.00 seconds = 705.05 MB/sec > > Timing buffered disk reads: 84 MB in 3.06 seconds = 27.43 MB/sec > > > > So my old IDE HDD appears to be considerably faster. Expected results > > were 55-70MB/s. > > Which kernel version did you get these results using? Have you
Results are the same on different kernels, I tried 2.6.4-ck1 and -ck2, 2.6.4-wolk2.3, 2.6.5 vanilla and 2.6.5-mm5
> speed-tested the drive(s) on a different SATA controller? I don't mean to
Not yet, but I'm going to test it on Intel ICH5 soon.
> imply that you should buy another one - that would be rediculuous since > your motherboard should laready has it - but it would help to eliminate > possible causes of error. I took the same readings on my machine. I'm
I'm almost ready to buy separate controller, but all that I could find nearby are based on the same Silicon Image chipset
> using an ASUS SK8N motherboard - that's the Promise TX2 SATA controller - > with Western Digital's 36gb 10K RPM Raptor: > > /dev/sda: > Timing buffer-cache reads: 128 MB in 0.12 seconds =1075.79 MB/sec > Timing buffered disk reads: 64 MB in 1.20 seconds = 53.43 MB/sec > > I'm using the latest stable vanilla kernel (2.6.5), compiled today. It > would also help to have your kernel config, if at all possible.
Sure. Attached is .config for 2.6.5-mm5 Thanks -- /KoS * If you can't say it in 50 characters, then don't b [unhandled content-type:application/x-gzip] | |