| Package home | Report new bug | New search | Development Roadmap | Status: Open | Feedback | All | Closed Since Version 1.6.11 |
| Bug #21080 | MBString functions are extremally slow | ||
|---|---|---|---|
| Submitted: | 2016-06-14 11:52 UTC | ||
| From: | alec | Assigned: | |
| Status: | Wont fix | Package: | Crypt_GPG (version 1.4.1) |
| PHP Version: | Irrelevant | OS: | |
| Roadmaps: | (Not assigned) | ||
[2016-06-14 11:52 UTC] alec
(Aleksander Machniak)
Description:
------------
I found that mb_substr/mb_strlen functions used to parse input/output are 5 times slower than subst/strlen.
I tested with 60MB file (after fixing performance according to #21077).
Current code encrypts a file in 56 seconds, but if I use old version of ByteUtils.php (the one that detected mbstring.func_overload and used no mb_* functions when not needed) it takes only 13 seconds.
I propose to revert this change and use old method with mbstring.func_overload detection.
Comments
[2016-06-14 11:57 UTC] alec
(Aleksander Machniak)
What's more, for some reason mbstring-based code uses 250MB memory, while the other needs only 188MB of memory peak usage. Tested with PHP7.
[2016-06-15 11:23 UTC] alec
(Aleksander Machniak)
-Status: Open
+Status: Bogus
Thank you for taking the time to write to us, but this is not
a bug.
After fixes from #21081 this is not an issue anymore. I decided to keep the current code. [2016-06-17 17:05 UTC] alec
(Aleksander Machniak)
-Status: Bogus
+Status: Wont fix
-Roadmap Versions: 1.4.2
+Roadmap Versions: