[squeak-dev] About unloading of packages in the most recent Squeak 4.1 trunk

Levente Uzonyi leves at elte.hu
Mon Aug 23 11:29:39 UTC 2010


On Mon, 23 Aug 2010, Hannes Hirzel wrote:

> On 8/23/10, Tobias Pape <Das.Linux at gmx.de> wrote:
>>
>> Am 2010-08-23 um 11:14 schrieb Tobias Pape:
>>
>>> Hi,
>>>
>>> Am 2010-08-23 um 11:06 schrieb Hannes Hirzel:
>>>
>>>> and tried
>>>>   SmalltalkImage unloadAllKnownPackages
>>>
>>> Do
>>> 	Smalltalk unloadAllKnownPackages
>>>
>>> instead, since Smalltalk is the sole instance
>>> of SmalltalkImage.
>
> Thank you for point this out.
>
> In fact Smalltalk is the global variable which references
>      SmalltalkImage current
>
> So I can do as well
>
>      SmalltalkImage current unloadAllKnownPackages
>
>
> Which I did
>
> Squeak4.2-10382-alpha.image went from 16998KB

Hm, I think Casey forgot to do [Smalltalk cleanUp: false] before saving 
the image. Doing that saves 2.8MB.


Levente

>
> down to
> 10277kB
> (file sizes measured on Windows machine)
>
>>> So Long,
>>> 	-Tobias
>>>
>
>
>
>> Addendum:
>> It works.
>> 	resulting file size: 10411140, about 10,4 MB.
>> Nice.
>>
>> Btw, this script probably needs updating, The Help
>> browser, eg, does not get unloaded (same for TrueType)
>
> Yes, I tried it for the HelpSystem
>
> I added three more entries to the literal array in the method
>
> "Go unloading"
> 	#(	'ReleaseBuilder' 'ScriptLoader'
> 		'311Deprecated' '39Deprecated'
> 		'Universes' 'SMLoader' 'SMBase' 'Installer-Core'
> 		'VersionNumberTests' 'VersionNumber'
> 		'Services-Base' 'PreferenceBrowser' 'Nebraska'
> 		'ToolBuilder-MVC' 'ST80'
> 		'CollectionsTests' 'GraphicsTests' 'KernelTests'  'MorphicTests'
> 		'MultilingualTests' 'NetworkTests' 'ToolsTests' 'TraitsTests'
> 		'SystemChangeNotification-Tests' 'FlexibleVocabularies'
> 		'EToys' 'Protocols' 'XML-Parser' 'Tests' 'SUnitGUI',
> 'HelpSystem-Core', 'HelpSystem-Tests', 'HelpSystem-Project'
> 	) do:[:pkgName| (MCPackage named: pkgName) unload].
>
>
> The image is now
> 10174kB (=100kB less10277kB).
>
> Probably not worth the effort at this time.
>
> Questions
> 1)  Which are the packages which are big and easy to unload.....?
> 2) Who does an attempt to unload the TrueType?
>
>
> --Hannes
>
>



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