On Mon, 18 Oct 2010, Nicolas Cellier wrote:
2010/10/17 Levente Uzonyi <[email protected]>:
On Sat, 16 Oct 2010, Bart Veenstra wrote:
Hi list,
I have been working with Pharo for almost a month now, and I suspect
that the performance is degrading fast. UI tasks takes several seconds
to react to my keyboard.
That kind of sluggishness is probably related to finalization/gc. Please
send us the result of the following expression:
(WeakArray classPool at: #FinalizationDependents)
select: [ :each | each notNil ]
thenCollect: [ :each | each class -> each size ]
While updating pharo 1.2, after an EndOfCentralDirectory error, I got
a very unresponsive image...
((WeakArray classPool at: #FinalizationDependents) as: Array)
select: [ :each | each notNil ]
thenCollect: [ :each | each class -> each size]
->
{(WeakIdentityKeyDictionary->22370). (WeakRegistry->0).
(WeakRegistry->0). (WeakRegistry->0). (WeakRegistry->2)}
I tried to inspect it 5 minutes ago, but hey, answer in another email...
Ah, OK, cmd+shift+. just worked. I had to interrupt
#finalizationProcess itself finally...
Oh inspect is sorting the keys... unusable.
So what's in the array ? Things like
(ScriptLoader>>#update12125 "a CompiledMethod(0)")->a
MCMethodDefinition(ScriptLoader>>update12125)
(PragmaCollector>>#release "a CompiledMethod(964689920)")->a
MCMethodDefinition(PragmaCollector>>release)
(Float>>#arcSin "a CompiledMethod(358088704)")->a
MCMethodDefinition(Float>>arcSin)
I don't understand yet, but I begin to gather clues why updating pharo
goes so badly...
IIRC Igor already checked that most of the time is spend in the
finalization process and gc.
Levente
Nicolas
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