Yann Sionneau <yann.sionneau%gmail.com@localhost> writes: > I actually showed this patch to Radoslaw Kujawa who then showed it to > David Holland, the latter said, I quote: > > "My guess is that it's faster the way it is due to pipelining and > probable cache stalls;" > > My intention, by sending my previous e-mail, was to seek some > precisions about the pipeline/cache subtlety > that would make my patch (which seems "good" from a newbie point of > view) slower than the current code. > > I am sorry if I mislead you in thinking this patch was tested and good > for commit. No worries - I didn't spend a lot of time replying :-) But seriously, it's one thing to explain why something is faster or slower, and another to measure it, and data points would be interesting (but not conclusive).
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