Bug #73412 [Nab]: url-wrappers in PHP7 terrible slow

Edit report at https://bugs.php.net/bug.php?id=73412&edit=1 ID: 73412 User updated by: spam2 at rhsoft dot net Reported by: spam2 at rhsoft dot net Summary: url-wrappers in PHP7 terrible slow Status: Not a bug Type: Bug Package: Performance problem Operating System: Linux PHP Version: 7.0.12 Block user comment: N Private report: N New Comment: i have no expierience with perf tools but if you would instruct me,,, in the meantime two straces: strace -Ff -tt -T -o out.txt php -r "get_headers('http://corecms/static.htm');" http://access.thelounge.net/harry/get_headers_strace_small.txt strace -Ff -tt -T -o out.txt php /www/corecms.rhsoft.net/response-times.php http://access.thelounge.net/harry/get_headers_strace.txt Previous Comments: ------------------------------------------------------------------------ [2016-10-31 08:03:27] rasmus@php.net I think a perf report would be more useful, but if you do an strace, use these flags: strace -Ff -tt -T -o out.txt php -r "get_headers('http://corecms/static.htm');" ------------------------------------------------------------------------ [2016-10-31 07:44:34] nikic@php.net Could you please provide an strace trace for what happens in the get_headers() case? ------------------------------------------------------------------------ [2016-10-31 07:35:44] spam2 at rhsoft dot net same behavior with your code (replaced the URL and changed 1000 to 20 because otherwise i would need to wait until next week) [harry@srv-rhsoft:/downloads]$ php test.php 0.081186056137085 3.1035280227661 the same when it's running within the webserver interesting that the profiling script used between "make prof-gen" and "make prof-use" is also doing a ton of file_get_contents on a temporary started webserver on 127.0.0.1:9000 does not suffer from this problem (not within the build-process and also not with the fallback using the installed binaries) while i have serveral scripts using file_get_contents() or get_headers() which got magnitudes slower one of them lists all files recursive and does blind requests to any possible URL to find includes which are not proper protected against direct calls and that one would take months to finish while with curl it's pretty fast ------------------------------------------------------------------------ [2016-10-31 06:33:07] rasmus@php.net I ran the test on mod_php which is using libphp7.so which is compiled with PIC. PIC is the shared library equivalent of PIE. But yes, as a matter of fact my cli php is position-independent as well: 11:28pm thinkpad:~/php-src> sapi/cli/php -v PHP 7.0.14-dev (cli) (built: Oct 27 2016 21:27:10) ( NTS ) Copyright (c) 1997-2016 The PHP Group Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies with Zend OPcache v7.0.13-dev, Copyright (c) 1999-2016, by Zend Technologies 11:28pm thinkpad:~/php-src> hardening-check sapi/cli/php sapi/cli/php: Position Independent Executable: yes Stack protected: yes Stack protected: yes Fortify Source functions: yes Read-only relocations: yes Immediate binding: yes 11:29pm thinkpad:~/php-src> sapi/cli/php /var/www/html/rr.php 4.9895119667053 5.8754270076752 And as you can see, from the cli the difference is still small. Did you actually run my script? ------------------------------------------------------------------------ [2016-10-31 06:20:59] spam2 at rhsoft dot net how can you assume http://www.hardened-php.net/ when i lead you to https://fedoraproject.org/wiki/Changes/Harden_All_Packages and /usr/bin/hardening-check and talking about PROPER? is your php cli binary *really* PIE which is *not* the same like PIC [root@srv-rhsoft:~]$ dnf info hardening-check Letzte Prüfung auf abgelaufene Metadaten: vor 7:11:06 am Mon Oct 31 00:09:04 2016. Installierte Pakete Name : hardening-check Arch : noarch Epoch : 0 Version : 2.5 Release : 4.fc24 Größe : 37 k Paketquelle : @System Zusammenfas : Tool to check ELF for being built hardened URL : http://packages.debian.org/source/sid/hardening-wrapper Lizenz : GPLv2+ Beschreibun : hardening-check is a tool to check whether an already compiled ELF file : was built using hardening flags. : : It checks, using readelf, for these hardening characteristics: : : * Position Independent Executable : * Stack protected : * Fortify source functions : * Read-only relocations : * Immediate binding ------------------------------------------------------------------------ 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=73412 -- Edit this bug report at https://bugs.php.net/bug.php?id=73412&edit=1