Manual:$wgProfileOnly

Category:MediaWiki configuration settings#ProfileOnlyCategory:MediaWiki configuration settings introduced before version 1.1.0#ProfileOnlyCategory:MediaWiki configuration settings deprecated in version 1.23.0#ProfileOnlyCategory:MediaWiki configuration settings removed in version 1.35.0#ProfileOnlyCategory:MediaWiki deprecated or obsolete features#ProfileOnlyCategory:Debug variables#ProfileOnly
Profiling: $wgProfileOnly
Don't put non-profiling info into log file
Introduced in version:Before 1.1.0
Deprecated in version:1.23.0 (Gerrit change 121336; git #d966a526)
Removed in version:1.35.0 (Gerrit change 560355; git #049dd15d)
Allowed values:(boolean)
Default value:false

Details

Don't put non-profiling info into log file

Since MediaWiki 1.23, you can set the log file in $wgDebugLogGroups ['profileoutput'] to achieve the same functionality.
Category:Log variables#ProfileOnly
Category:Debug variables Category:Log variables Category:MediaWiki configuration settings Category:MediaWiki configuration settings deprecated in version 1.23.0 Category:MediaWiki configuration settings introduced before version 1.1.0 Category:MediaWiki configuration settings removed in version 1.35.0 Category:MediaWiki deprecated or obsolete features