On Wednesday July 26, [EMAIL PROTECTED] 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
As Jakob mentioned, the slow down is quite possibly related to other
parts of the kernel.
I would really like to see speed comparisons for
2.2 no raid
2.2 raid
2.4 no raid
2.4 raid
where 2.3+raid didn't fit the pattern, before I looked too deeply.
Given the code at the moment, I am highly confident that linear, raid0
and raid1 should be just as fast in 2.4 as in 2.2.
There are some issues with raid5 that I am looking into. I don't
know that they affect speed much, though they might.
NeilBrown