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Profiling PHP in production at scale

Timo Tijhof · published 11 December 2020

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Host
https://github.com/wikimedia/php-excimer/
github.com
https://github.com/wikimedia/arc-lamp/
github.com
https://performance.wikimedia.org/php-profiling/
performance.wikimedia.org
https://phabricator.wikimedia.org/T176916
phabricator.wikimedia.org
https://www.mediawiki.org/wiki/Excimer
mediawiki.org
https://en.wikipedia.org/wiki/GNU_Debugger
en.wikipedia.org
http://www.brendangregg.com/perf.html
brendangregg.com
https://en.wikipedia.org/wiki/Application_virtual_machine
en.wikipedia.org
https://www.php.net/manual/en/ini.core.php
php.net
Choose Boring Technology Read at the source ↗
mcfunley.com
https://diff.wikimedia.org/2014/12/29/how-we-made-editing-wikipedia-twice-as-fast/
diff.wikimedia.org
How the Wikimedia Foundation Successfully Migrated to PHP7 Read at the source ↗
launchdarkly.com
https://techblog.wikimedia.org/2019/12/16/wikimediadebug-v2-is-here/
techblog.wikimedia.org
https://nikic.github.io/2017/04/14/PHP-7-Virtual-machine.html
nikic.github.io
http://www.brendangregg.com/flamegraphs.html
brendangregg.com
https://en.wikipedia.org/wiki/Perf_%28Linux%29
en.wikipedia.org
http://www.phpinternalsbook.com/php7/extensions_design/hooks.html
phpinternalsbook.com
https://man7.org/linux/man-pages/man2/timer_create.2.html
man7.org
https://wikitech.wikimedia.org/wiki/Wikimedia_infrastructure
wikitech.wikimedia.org
https://calendar.perfplanet.com/2020/profiling-php-in-production-at-scale/
calendar.perfplanet.com
https://techblog.wikimedia.org/2021/03/03/profiling-php-in-production-at-scale/
techblog.wikimedia.org
https://github.com/phacility/xhprof
github.com
https://github.com/tideways/php-xhprof-extension
github.com
https://github.com/phacility/xhprof/tree/dab44f76da5c8a0d4f1339f7d2ea2bc42408e8e9
github.com
https://dom.as/2009/02/15/poor-mans-contention-profiling/
dom.as
https://en.wikipedia.org/wiki/Just-in-time_compilation
en.wikipedia.org
https://www.php.net/releases/8.0/en.php
php.net
https://wiki.php.net/rfc/jit
wiki.php.net