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Set by lizmat on 8 June 2022.
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japhb Looking for fresh eyes ... I have a routine that converts a 256-bit Int (representing a 16x16 bitmap) into a 16x16 matrix of actual 0's and 1's. The fastest conversion I've found so far is: 04:37
my str $binary = $bitmap.base(2);
$binary = '0' x (256 - chars($binary)) ~ $binary;
$binary.comb.map(+*).rotor(16).eager
Any ideas for faster conversion welcome!
One constraint: No nqp::ops.
(That second line, BTW, is to make sure there are really 256 entries, in case the bitmap has leading 0's.) 04:38
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Geth rakudo/rakuast: 13 commits pushed by (Stefan Seifert)++
review: github.com/rakudo/rakudo/compare/f...7267297b3e
14:47
[Tux] Rakudo v2022.06-27-g7cf264572 (v6.d) on MoarVM 2022.06-6-gc315523ab
csv-ip5xs0.742 - 0.810
csv-ip5xs-204.977 - 5.053
csv-parser3.367 - 3.723
csv-test-xs-200.410 - 0.490
test6.060 - 7.175
test-t1.343 - 1.405
test-t --race0.777 - 0.899
test-t-2020.534 - 20.851
test-t-20 --race6.396 - 6.539
15:32
Top 3 15:33
5 2022-03-24 08:27:53 test-t 1.359
4 2022-04-17 11:46:28 test-t 1.349
3 2022-06-29 17:12:37 test-t 1.343
2 2022-06-21 18:35:52 test-t 1.338
1 2022-06-21 18:33:38 test-t 1.332
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