Re: Benchmarks: Linux Kernel RAID vs a Hardware RAID setup

["Dan Williams" <dan.j.williams@xxxxxxxxx>]

On Tue, Jul 15, 2008 at 8:55 PM, Richard Scobie <richard@xxxxxxxxxxx> wrote:
> Ben Martin wrote:
>
>> I have been meaning to ask for a while, why is the stripe_cache_size
>> set so low by default if it has such an effect on performance?
>
> I can't comment on the above, but looking at this:
>
> http://marc.info/?l=linux-raid&m=120668318422034&w=2
>
> with the 2.6.26 release, bumping up the stripe cache should no longer be
> necessary.
>

To be clear bumping up the cache size can still increase performance
but the ratio of performance/stripe_cache_size should now be larger,
i.e. more sequential write performance at smaller cache sizes.

> Regards,
>
> Richard

--
Dan
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html