[Wikidata-bugs] [Maniphest] [Commented On] T205865: Investigate decrease in wikidata dispatch times due to eqiad -> codfw DC switch

[hoo]

hoo added a comment.

It indeed is the lockmanager. I ran the following on both mwmaint2001 and mwmaint1001:

$lockManager = LockManagerGroup::singleton( wfWikiID() )->get( $wgWBRepoSettings['dispatchingLockManager'] );
$t0 = microtime( true );

for ( $i = 0; $i < 500; $i++ ) { $lockManager->lock( [ 'T205865-test-lock' ] )->isOK(); $lockManager->unlock( [ 'T205865-test-lock' ] )->isOK(); }

echo microtime( true ) - $t0;

mwmaint1001: 73.30463886261
mwmaint2001: 0.64075589179993

TASK DETAIL

https://phabricator.wikimedia.org/T205865

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To: hoo
Cc: hoo, Joe, User-Marostegui, Banyek, jcrespo, Marostegui, Addshore, Aklapper, Nandana, jijiki, Lahi, Gq86, Darkminds3113, GoranSMilovanovic, QZanden, LawExplorer, Vali.matei, Volans, Volker_E, Wikidata-bugs, aude, GWicke, Dinoguy1000, Mbch331, Jay8g, Krenair, akosiaris

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