Turn on garbage collection for Parsoid cluster
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	cscott
	Jun 4 2020, 7:11 PM

Description

Currently we disable garbage collection on the Parsoid cluster.

There were originally gc bugs (T228346: PHP 7.2 garbage collector segfault) but there were also some performance improvements obtained by turning off gc (T230861: PHP 7.2 is very slow on an allocation-intensive benchmark).

We need to re-enable garbage collection (and fix any performance regressions) before we can use Parsoid directly on the main mediawiki cluster.

Status	Subtype	Assigned	Task
Open	Release	None	T84936 Release VisualEditor-MediaWiki as "1.0"
Open		None	T50429 [Epic] Support editing parts of a page in VisualEditor-MediaWiki
Open		None	T54365 Explore performance gains from progressive (JIT?) de-alienation in VisualEditor
Open		None	T174303 Copy-pasting linked ISBN numbers from view mode HTML into VisualEditor inserts wikitext links to Special:BookSources (it should turn them into magic links?)
Open	Feature	None	T54091 The read HTML should have hinting to allow full DOM copying (as opposed to just rich copying) from read mode into VE surfaces
Open		None	T55784 [EPIC] Use Parsoid HTML for all page views
Open		None	T258836 [EPIC] Ensure Parsoid meets performance criteria for serving read views on the Parsoid cluster
Open		None	T254508 Reconcile Parsoid memory usage w/ legacy parser and mediawiki core
Resolved		• ssastry	T254509 Turn on garbage collection for Parsoid cluster
Resolved		Joe	T230861 PHP 7.2 is very slow on an allocation-intensive benchmark
Declined		None	T257462 Parsoid should not disable GC unless a config var is set