https://bugzilla.wikimedia.org/show_bug.cgi?id=70177
Bug ID: 70177
Summary: Lua takes a lot more CPU time with HHVM jobrunners
Product: MediaWiki extensions
Version: unspecified
Hardware: All
OS: All
Status: NEW
Keywords: hiphop
Severity: normal
Priority: Unprioritized
Component: Scribunto
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
Web browser: ---
Mobile Platform: ---
This is from an HHVM jobrunner:
<!--
NewPP limit report
Parsed by mw1053
CPU time usage: 41.412 seconds
Real time usage: 3.443 seconds
Preprocessor visited node count: 13901/1000000
Preprocessor generated node count: 0/1500000
Post‐expand include size: 316970/2048000 bytes
Template argument size: 35984/2048000 bytes
Highest expansion depth: 23/40
Expensive parser function count: 16/500
Lua time usage: 10.352/10.000 seconds
Lua memory usage: 2.54 MB/50 MB
-->
<!-- Saved in parser cache with key enwiki:pcache:idhash:13146361-0!*!0!*!*!4!*
and timestamp 20140829142304 and revision id 269146468
-->
This is the same page, also HHVM, but from a null-edit rather than a job:
<!--
NewPP limit report
Parsed by mw1019
CPU time usage: 0.986 seconds
Real time usage: 1.276 seconds
Preprocessor visited node count: 13994/1000000
Preprocessor generated node count: 0/1500000
Post‐expand include size: 319685/2048000 bytes
Template argument size: 35683/2048000 bytes
Highest expansion depth: 23/40
Expensive parser function count: 16/500
Lua time usage: 0.290/10.000 seconds
Lua memory usage: 2.59 MB/50 MB
-->
<!-- Saved in parser cache with key enwiki:pcache:idhash:13146361-0!*!0!*!*!4!*
and timestamp 20140829142922 and revision id 269146468
-->
The job runner's CPU time is much higher for no apparent reason. This has been
going on for several days/weeks.
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