Bug #74929 [Fbk->Csd]: mbstring functions version 7.1.1 are slow compared to 5.3 on Windows

Edit report at https://bugs.php.net/bug.php?id=74929&edit=1 ID: 74929 Updated by: ab@php.net Reported by: andxfiles at gmail dot com Summary: mbstring functions version 7.1.1 are slow compared to 5.3 on Windows -Status: Feedback +Status: Closed Type: Bug Package: mbstring related Operating System: Windows PHP Version: 7.1.7 Assigned To: nikic Block user comment: N Private report: N New Comment: Closing, as it is going to be first available in 7.3. Thanks. Previous Comments: ------------------------------------------------------------------------ [2017-07-26 11:32:40] ab@php.net Nikita, please mention this ticket, once the perf part is merged into 7.2. Thanks. ------------------------------------------------------------------------ [2017-07-24 22:38:31] andxfiles at gmail dot com I apologize, had not scrolled down, thought that the latest was 7.1.9. I just downloaded and tested the master branch (7.3.0-dev) and it is indeed way faster, as your results show ab@php.net 5.3.28: mb_strlen: 153.6 milliseconds mb_stripos: 1814.6 milliseconds mb_substr: 163.1 milliseconds 7.1.1 mb_strlen: 289 milliseconds mb_stripos: 3247.3 milliseconds mb_substr: 295.7 milliseconds 7.3 (master) mb_strlen: 33.7 milliseconds mb_stripos: 139.6 milliseconds mb_substr: 41.8 milliseconds you can mark the bug as solved. Thank you. Would be grateful if it was included on 7.2 ------------------------------------------------------------------------ [2017-07-24 10:30:06] ab@php.net Thanks for checking. I've tested your snippet now, but the results are somewhat different. 5.3 x86 mb_strlen: 327.4 milliseconds mb_stripos: 3125.6 milliseconds mb_substr: 260.6 milliseconds 5.6 x86 mb_strlen: 293 milliseconds mb_stripos: 3145.3 milliseconds mb_substr: 342.4 milliseconds 7.1 x86 mb_strlen: 432 milliseconds mb_stripos: 5672.8 milliseconds mb_substr: 567.7 milliseconds master x86 mb_strlen: 73.6 milliseconds mb_stripos: 248.5 milliseconds mb_substr: 69.6 milliseconds master x64 mb_strlen: 91.6 milliseconds mb_stripos: 312.6 milliseconds mb_substr: 101.6 milliseconds To see is, that indeed some slowdown made it into PHP 7. The current master however is significant faster that any previous branch, even on 64 bit. Please note, that 7.1 is not master. You need to fetch literally master snapshots from the page linked, the improvements are not anywhere else ATM. Thanks. ------------------------------------------------------------------------ [2017-07-24 06:53:21] andxfiles at gmail dot com ab@php.net, nikic@php.net: Unfortunately under Windows I still see no difference. New results: 5.3.28: mb_strlen: 309.4 milliseconds mb_stripos: 3523.4 milliseconds mb_substr: 326.6 milliseconds 7.1.1: mb_strlen: 426.3 milliseconds mb_stripos: 4812.5 milliseconds mb_substr: 421.9 milliseconds 7.1.9-dev (master) mb_strlen: 421.9 milliseconds mb_stripos: 4890.6 milliseconds mb_substr: 421.9 milliseconds ------------------------------------------------------------------------ [2017-07-23 19:15:31] ab@php.net @andxfiles, Nikita made quite a few improvements to ext mbstring in master, see bug #74933. I'd say, it would make sense to check some latest master snapshot, to fetch here http://windows.php.net/snapshots/ . We also work on a new PGO approach, so further improvements are to come. Thanks. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=74929 -- Edit this bug report at https://bugs.php.net/bug.php?id=74929&edit=1