On Wed, 26 Jul 2000, Anton wrote:
> do the kernel developers responsible for RAID read this list? I would be
> interested in seeing some constructive discussion about the reports of
> degraded RAID performance in the 2.4 kernels. It is particularly
> disappointing given that SMP appears to be a lot better in 2.4 vs 2.2
2.4 is having VM problems, therefore especially write performance can be
poor. This is not directly RAID related, although maybe RAID will amplify
the problem.
There's a lot of work going on in trying to make the VM perform more reasonably,
and I'm confident that RAID performance will be absolutely *smoking* once those
other issues are sorted out.
The block I/O layer has seen some optimizations and especially the buffer/cache
merger should improve throughput significantly (especially on low memory-bandwidth
machines).
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