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Small speed-up in movegen #2715

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protonspring wants to merge 2 commits into from
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Small speed-up in movegen #2715

protonspring wants to merge 2 commits into from

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@protonspring
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@protonspring protonspring commented Jun 5, 2020

This is a non-functional speed-up.

master:
cycles - 334,687...
instructions - 553,128...
time - 64.31

Patch:
cycles - 322,959...
instructions - 525,620...
time - 63.86

@protonspring protonspring mentioned this pull request Jun 5, 2020
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@mstembera
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mstembera commented Jun 5, 2020

Nice find. Here is what I get.

Results for 40 tests for each version:

            Base      Test      Diff      
    Mean    2157439   2188292   -30853    
    StDev   85149     120422    113401    

p-value: 0.607
speedup: 0.014

@vondele vondele closed this in fd8e884 Jun 6, 2020
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vondele commented Jun 6, 2020

Thanks.

Slightly more extensive commit message next time, please..

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@protonspring @mstembera @vondele