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SubjectRE: Tuning Linux for high-speed disk subsystems
Date
Roy Sigurd Karlsbakk wrote:

> After some testing at Compaq's lab in Oslo, I've come to the
> conclusion
> that Linux cannot scale higher than about 30-40MB/sec in or out of a
> hardware or software RAID-0 set with several stripe/chunk
> sizes tried out.

Hmmm. I saw "dbench 32" results of 73 MB / second using Linux
software RAID-0 and IDE. However, I suppose some of that
was due to caching, and not hardware throughput.

Details: 2.4.9-ac17, 4 x Maxtor 5400 RPM, 60 GB hard drives,
2 x Promise TX-2 controllers, using UDMA-100, one drive / cable,
dual PIII-800, reiserfs, RAID - 0 with chunk-size = 1024

Torrey



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