Stéphane Ducasse wrote:
>
> Stan
> did you compare/have a look at spaceTally because it is also reporting
> memory consumption
> and may be we could make everything better. (I just read my mails between
> two houses fixes).
> I will take more time this evening if I can.
> Anyway thanks. I like these kinds of discussions. Because I learn stuff or
> they make me think
> and rethink what I think I know
>
> Stef
>
>
SpaceTally uses allInstances for each class.
[(SpaceTally new systemWideSpaceTally asSortedCollection:
[:a :b | a spaceForInstances > b spaceForInstances])
asArray inspect] timeToRun 363332 on a slow machine.
Could probably be made somewhat faster by keeping a count of all classes'
instances during one pass.
Senders of allSubInstances with their number of subclasses
----------------------------------------------------------
a MethodReference Behavior >> #inspectSubInstances->3396
a MethodReference Morph class >> #morphsUnknownToTheirOwners->221
a MethodReference Morph >> #morphsUnknownToTheirOwners->221
a MethodReference Set class >> #rehashAllSets->21
a MethodReference Set >> #rehashAllSets->21
a MethodReference UITheme class >> #closeExampleDialogs->6
a MethodReference UITheme >> #closeExampleDialogs->6
a MethodReference FT2Handle class >> #shutDown:->5
a MethodReference FT2Handle >> #shutDown:->5
a MethodReference Categorizer class >> #sortAllCategories->4
a MethodReference Categorizer >> #sortAllCategories->4
a MethodReference TTCFont class >> #recreateCache->2
a MethodReference TTCFont >> #recreateCache->2
a MethodReference Symbol class >> #rehash->2
a MethodReference Symbol >> #rehash->2
a MethodReference StrikeFont class >> #setupDefaultFallbackFont->2
a MethodReference StrikeFont >> #setupDefaultFallbackFont->2
a MethodReference WAProcessStatus >> #processes->0
a MethodReference Utilities class >> #closeAllDebuggers->0
a MethodReference Utilities >> #closeAllDebuggers->0
...etc
Morph morphsUnKnownToTheirOwners timeToRun is 10s; could be faster, but has
no senders.
Senders of allSubInstancesDo: with their number of subclasses
----------------------------------------------------------
a MethodReference Behavior >> #allSubInstances->3396
a MethodReference Behavior >> #allInstancesEverywhereDo:->3396
a MethodReference ClassDescription >> #updateInstancesFrom:->3395
a MethodReference WASqueakStatusItem >> #numberOfSessions->8
a MethodReference MCFileBasedRepository class >> #flushAllCaches->5
a MethodReference MCFileBasedRepository >> #flushAllCaches->5
a MethodReference PopUpMenu class >> #setMenuFontTo:->3
a MethodReference PopUpMenu class >> #initialize->3
a MethodReference PopUpMenu >> #setMenuFontTo:->3
a MethodReference PopUpMenu >> #initialize->3
a MethodReference ChangeList >> #selectConflictsWith->3
a MethodReference TTCFont class >> #initialize->2
a MethodReference TTCFont >> #initialize->2
a MethodReference StrikeFont class >> #shutDown->2
a MethodReference StrikeFont >> #shutDown->2
a MethodReference WARegistry class >> #clearAll->1
a MethodReference WARegistry >> #clearAll->1
a MethodReference ShortIntegerArray class >> #swapShortObjects->1
a MethodReference ShortIntegerArray >> #swapShortObjects->1
a MethodReference Preferences class >> #smartUpdatingChanged->1
a MethodReference Preferences class >> #setFlapsFontTo:->1
...etc
Metaclass is the sole sender of allInstancesEverywhereDo:
Conclusion- there are no cases which clearly need attention, with the
possible exception of Object>>allSubInstances
It might be worth catching calls to #allSubInstances, #allSubInstancesDo:
where subclasses size > say 100, as Martin mentioned.
--
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