On 22/11/2008 05:45, Igor Podlesny wrote:
2008/11/22 H. Peter Anvin <hpa@xxxxxxxxx>:
[...]
Please let us know when commiting the patch -- 20 % is valuable.
;-)
Looks like I was a bit too optimistic. The 20% was because of the missed
prefetchnta, which means polluting the cache.
Well, whatever it gives unless it's a regression. :-)
Not sure I agree with that - if the 20% improvement were to have a heavy
impact on the rest of system performance when the system is already
going to be underperforming, it may not worth having (though it might be
an option for people who can afford the CPU or whatever).
Cheers,
John.
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