On Tuesday, 19 September 2017 at 16:27:51 UTC, jmh530 wrote:
On Tuesday, 19 September 2017 at 07:53:27 UTC, Daniel Kozak
wrote:
https://github.com/mariomka/regex-benchmark#performance
Do you know why?
Here is a code:
https://github.com/mariomka/regex-benchmark/blob/master/d/benchmark.d
I have try it with ldc too, but is still much slower (10x)
than PHP
Looks like they added ldc to it. I'm seeing 3x slower than PHP
on Email and URI, but roughly par on IP. It really stands out
on the DMD one how much better it does on the IP one than the
Email/URI ones.
IP is detected to be "semi-fixed" thus hitting a nice fast path.
Others would have worked with BitNFA, a patch that we had to
revert because auto-tester run out of memory.
