Re^4: Risque Romantic Rosetta Roman Race

Would

unpack 'c*', uc($_)
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run faster than

map ord, split //, uc($_)
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Comment on Re^4: Risque Romantic Rosetta Roman Race Select or Download Code

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Re^5: Risque Romantic Rosetta Roman Race - Testing Unpack by marioroy (Prior) on May 12, 2023 at 18:24 UTC
Thanks, tybalt89. Yes, it runs faster :) completing in less than 0.2 seconds. I updated the MCE demonstration. `# captured UNIX time C++ 1.0 : 0.450s C++ fast_io : 0.291s Perl MCE 64 thds : 0.252s # after tweaks: CPU affinity and slurp IO Perl MCE 64 thds : 0.218s # more tweaks: using an ARRAY and unpack Perl MCE 64 thds : 0.192s $ time perl rtoa-pgatram-mce.pl t1.txt >mce.tmp rtoa pgatram start time 0.165 secs real 0m0.192s user 0m7.596s sys 0m0.420s` [download]	[reply] [d/l]

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Re^5: Risque Romantic Rosetta Roman Race - Testing Unpack
by marioroy (Prior) on May 12, 2023 at 18:24 UTC

Thanks, tybalt89. Yes, it runs faster :) completing in less than 0.2 seconds. I updated the MCE demonstration.

# captured UNIX time
C++ 1.0          : 0.450s
C++ fast_io      : 0.291s
Perl MCE 64 thds : 0.252s

# after tweaks: CPU affinity and slurp IO
Perl MCE 64 thds : 0.218s

# more tweaks: using an ARRAY and unpack
Perl MCE 64 thds : 0.192s

$ time perl rtoa-pgatram-mce.pl t1.txt >mce.tmp
rtoa pgatram start
time 0.165 secs

real    0m0.192s
user    0m7.596s
sys     0m0.420s
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