Igor Podlesny wrote:
2008/11/22 H. Peter Anvin <hpa@xxxxxxxxx>:
[...]
I just tested a version using gcc intrinsics with gcc 4.3, and it is
almost 20% faster than the inline assembly version. That, plus the fact
that the code is actually readable, makes me really want to figure out
how best to deploy this.
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.
-hpa
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