Chris Kuklewicz wrote:
Your question has prompted me to go back into my PosixRE wrapping code
and compare it to the PCRE code. I have made some changes which ought
to enhance the performance of the PosixRE code. Let us see the new
bechmarks on 10^6 bytes:
PosixRE
(102363,["bcdcd","cdc"],["bbccd","bcc"])
real 1m35.429s
user 1m17.862s
sys 0m1.455s
total is 79.317s
PCRE
(102363,["bcdcd","cdc"],["bbccd","bcc"])
real 0m2.570s
user 0m1.702s
sys 0m0.219s
total is 1.921s
So I still don't understand why PCRE should be 40 times faster than PosixRE.
Surely this can't be just due to differences in the underlying C library?
Cheers,
Simon
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