Messages in this thread | | | Date | Tue, 22 Nov 2005 10:46:13 +0100 | From | Lars Roland <> | Subject | Re: Poor Software RAID-0 performance with 2.6.14.2 |
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On 11/21/05, Lennart Sorensen <lsorense@csclub.uwaterloo.ca> wrote: > > dkstorage01:~# hdparm -t /dev/md0 > > /dev/md0: > > Timing buffered disk reads: 182 MB in 3.01 seconds = 60.47 MB/sec > > > > dkstorage02:~# hdparm -t /dev/hdc1 > > /dev/hdc1: > > Timing buffered disk reads: 184 MB in 3.02 seconds = 60.93 MB/sec > > How about at least testing one of the drives involved in the raid, > although I assume they are identical in your case given the numbers.
There are four identical drives in the machines although I only stripe on two of them - I can assure you that I get the same numbers from all the drives - I should ofcause have put this info in the orig post.
> > Did you test this with other kernel versions (older ones) to see if it > was better in the past?
Also tried 2.4.27 and 2.4.30 - no difference there. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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