Status: New
Owner: ----
New issue 3562 by [email protected]: Deferred UI messages executed
slowly
http://code.google.com/p/pharo/issues/detail?id=3562
Pharo1.2rc1
Latest update: #12313
Processing deferred ui messages seems to be really slow. You can test it by
executing this:
| rnd |
rnd := Random new.
100 timesRepeat: [
WorldState addDeferredUIMessage: [
Morph new openInWorld; center: rnd next @ rnd next * Display
extent.
]
].
You'll notice it takes a couple of seconds to finish opening all the
morphs, but if you remove the #addDeferredUIMessage: send, it is
instantaneous. In Squeak and Etoys both versions are equally fast.
I think the bug is in WorldState>>#runStepsMethodsIn:. It seems it only
executes one deferred ui message per step. With the implementation below
the problem is fixed.
WorldState>>#runStepMethodsIn: aWorld
"Perform periodic activity inbetween event cycles"
| queue nextInQueue|
"If available dispatch some deferred UI Message"
queue := self class deferredUIMessages.
[(nextInQueue := queue nextOrNil) isNil]
whileFalse: [ nextInQueue value].
self runLocalStepMethodsIn: aWorld.
