Hi,
When you look at the #internalActivateNewMethod you can see the VM
checking for freeContexts:
internalActivateNewMethod
…
(needsLarge = 0 and: [freeContexts ~= NilContext])
ifTrue: [newContext := freeContexts.
freeContexts := self fetchPointer: 0 ofObject: newContext]
ifFalse: ["Slower call for large contexts or empty free list"
self externalizeIPandSP.
newContext := self allocateOrRecycleContext: needsLarge.
self internalizeIPandSP].
…
Then in the #allocateOrRecycleContext you can see another check:
allocateOrRecycleContext: needsLarge
"Return a recycled context or a newly allocated one if none is
available for recycling."
| cntxt |
needsLarge = 0
ifTrue: [freeContexts ~= NilContext ifTrue:
[cntxt := freeContexts.
freeContexts := self fetchPointer: 0 ofObject: cntxt.
^ cntxt]]
…
…
needsLarge = 0
ifTrue: [cntxt := self instantiateContext: (self splObj:
ClassMethodContext)
sizeInBytes: SmallContextSize]
…
So why there is so many check for nothings. The best would be to have
the #allocateOrRecycleLargeContext: method?
Mth
