5 ms·

The Java and golang numbers are not apples to apples. The Java solution is using the standard library code, while golang's is calling out to native code (wrappe

by azth 5y ago

The Java and golang numbers are not apples to apples. The Java solution is using the standard library code, while golang's is calling out to native code (wrapper C library) as far as I can tell. Same with Python.

adgjlsfhk1 5y ago
To be fair to non-Javas, the java version is using Java code because Java sucks at calling out to faster languages.
- azth 5y ago
  There's JNI that exists now. And Project Panama will be a big improvement.
- zmmmmm 5y ago
  Oh yes, that Python code looks so idiomatic: https://benchmarksgame-team.pages.debian.net/benchmarksgame/program/regexredux-python3-2.html https://benchmarksgame-team.pages.debian.net/benchmarksgame/...
  - viraptor 5y ago
    regex=PCRE2.pcre2_compile_8(pattern, c_size_t(len(pattern)), c_uint32(0), byref(c_int()), byref(c_size_t()), None) As far as FFI goes, I would say this looks amazingly simple.
  - pmontra 5y ago
    Can't comment on that but why are these people putting spaces after commas (correct) and not to the left and right of the assignment sign = ? It's so weird to read a=b
  - oefrha 5y ago
    That’s very straightforward translation of C code using pcre to Python using ctypes. It doesn’t look great because the ugliness isn’t wrapped in a library. But Python ctypes definitely isn’t hard to use. It is unsafe as hell though.
  - igouy 5y ago
    Alternatively see Python #1 https://benchmarksgame-team.pages.debian.net/benchmarksgame/program/regexredux-python3-1.html https://benchmarksgame-team.pages.debian.net/benchmarksgame/...
- igouy 5y ago
  Seems to be OK in pidigits — Java #3 program https://benchmarksgame-team.pages.debian.net/benchmarksgame/program/pidigits-java-3.html https://benchmarksgame-team.pages.debian.net/benchmarksgame/... C gcc #6 0.56s Java #3 0.79s
igouy 5y ago
Other programs are shown: Python #2 1.34s PCRE2 Go #5 3.80s PCRE Java #3 5.34s Java #6 5.39s Java #1 8.49s Python #1 9.25s "standard library" Go #4 15.60s PCRE Go #3 26.86s "standard library" Go #1 27.01s "standard library"

by azth 5y ago

adgjlsfhk1 5y ago

To be fair to non-Javas, the java version is using Java code because Java sucks at calling out to faster languages.

azth 5y ago
There's JNI that exists now. And Project Panama will be a big improvement.
zmmmmm 5y ago
Oh yes, that Python code looks so idiomatic: https://benchmarksgame-team.pages.debian.net/benchmarksgame/program/regexredux-python3-2.html https://benchmarksgame-team.pages.debian.net/benchmarksgame/...
- viraptor 5y ago
  regex=PCRE2.pcre2_compile_8(pattern, c_size_t(len(pattern)), c_uint32(0), byref(c_int()), byref(c_size_t()), None) As far as FFI goes, I would say this looks amazingly simple.
- pmontra 5y ago
  Can't comment on that but why are these people putting spaces after commas (correct) and not to the left and right of the assignment sign = ? It's so weird to read a=b
- oefrha 5y ago
  That’s very straightforward translation of C code using pcre to Python using ctypes. It doesn’t look great because the ugliness isn’t wrapped in a library. But Python ctypes definitely isn’t hard to use. It is unsafe as hell though.
- igouy 5y ago
  Alternatively see Python #1 https://benchmarksgame-team.pages.debian.net/benchmarksgame/program/regexredux-python3-1.html https://benchmarksgame-team.pages.debian.net/benchmarksgame/...
igouy 5y ago
Seems to be OK in pidigits — Java #3 program https://benchmarksgame-team.pages.debian.net/benchmarksgame/program/pidigits-java-3.html https://benchmarksgame-team.pages.debian.net/benchmarksgame/... C gcc #6 0.56s Java #3 0.79s

igouy 5y ago

Other programs are shown: Python #2 1.34s PCRE2 Go #5 3.80s PCRE Java #3 5.34s Java #6 5.39s Java #1 8.49s Python #1 9.25s "standard library" Go #4 15.60s PCRE Go #3 26.86s "standard library" Go #1 27.01s "standard library"