Running "pike -x benchmark" using a fairly recent pike 7.7, I get really bad results on the "Tag removal u. Regexp.PCRE" test. So bad that I've actually never bothered to let it finish, it just sits there sucking up CPU for a long time. If I change the number of times the test is run from 2000 to 200 I can see that it actually does work, its just incredibly slow.

Is this normal, or is my PCRE lib performing horribly badly for some reason? Here's what it looks like after changing n to be 200 instead of 2000 in Tools.pmod/Shoot.pmod/TagRemovePCRE.pike

Tag removal u. array_sscanf 3.936s 3.135s ? (2) (96 /s) Tag removal u. division.... 3.909s 3.055s ? (2) (65 /s) Tag removal using a loop... 4.081s 3.070s ? (2) (16 /s) Tag removal u. Regexp.PCRE.161.214s 143.930s ? (1) (1 /s) Tag removal u. Parser.HTML. 5.003s 4.590s ? (1) (65 /s) Tag removal u. search...... 5.088s 4.680s ? (1) (64 /s) Tag removal using sscanf...24.450s 22.770s ? (1) (1 /s)

Pike 7.7.24 build 1402, G4 @ 1.5GHz:

----8<----8<----8<----8<---- test total user mem (runs) Pike start overhead........ 0.377s 0.001s ? (14) Ackermann.................. 1.584s 1.017s ? (4) Append array............... 1.492s 1.033s ? (4) (484262/s) Append mapping............. 2.750s 2.025s ? (2) (4938/s) Append multiset............ 0.994s 0.590s ? (6) (16949/s) Array & String Juggling.... 3.192s 2.255s ? (2) Read binary INT16.......... 0.937s 0.347s ? (6) (2884616/s) Read binary INT32.......... 4.793s 2.560s ? (2) (195312/s) Read binary INT128......... 1.432s 0.860s ? (4) (11628/s) Clone null-object.......... 0.759s 0.327s ? (7) (917031/s) Clone object............... 1.095s 0.566s ? (5) (530035/s) Compile.................... 2.427s 1.660s ? (3) (14542 lines/s) Compile & Exec............. 2.232s 1.480s ? (3) (406351 lines/s) GC......................... 2.507s 1.100s ? (2) Insert in mapping.......... 1.763s 0.523s ? (3) (955414/s) Insert in multiset......... 1.753s 1.057s ? (3) (473186/s) Matrix multiplication...... 0.936s 0.505s ? (6) Loops Nested (local)....... 0.732s 0.331s ? (7) (50620908 iters/s) Loops Nested (global)...... 1.060s 0.560s ? (5) (29959314 iters/s) Loops Recursed............. 1.304s 0.692s ? (4) (1514189 iters/s) Replace (parallel)......... 6.513s 5.180s ? (1) (772 repl/s) Replace (serial)........... 4.305s 3.550s ? (2) (1127 repl/s) Sort equal integers........ 1.301s 0.707s ? (4) Sort ordered integers...... 1.145s 0.620s ? (5) Sort unordered integers.... 1.701s 1.180s ? (3) Sort unordered objects..... 2.498s 1.707s ? (3) Tag removal u. array_sscanf 4.009s 3.115s ? (2) (96 /s) Tag removal u. division.... 4.090s 3.090s ? (2) (65 /s) Tag removal using a loop... 3.727s 3.010s ? (2) (17 /s) Tag removal u. Regexp.PCRE.494.239s 460.850s ? (1) (4 /s) Tag removal u. Parser.HTML. 3.072s 2.545s ? (2) (118 /s) Tag removal u. search...... 3.996s 3.355s ? (2) (89 /s) Tag removal using sscanf... 7.822s 7.140s ? (1) (3 /s) ---->8---->8---->8---->8----