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"{ Package: 'stx:goodies/regression/benchmarks' }"
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Object subclass:#CollectionBenchmarks
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'benchmarks-Collections'
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!
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!CollectionBenchmarks class methodsFor:'sorted collections'!
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collectionTimings
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|N randomNumbers|
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N := 100000.
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randomNumbers := (1 to:N) collect:[:i | Random nextInteger].
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ObjectMemory garbageCollect.
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#(SortedCollection AATree BinaryTree) do:[:className |
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|class doBench coll t seq|
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class := Smalltalk classNamed:className.
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doBench := [:class |
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|coll t|
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t := Time millisecondsToRun:[
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coll := class new.
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randomNumbers do:[:each | coll add:each]
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].
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Transcript show:'Time to insert random '; show:N; show:' individually into ',class name,': '; show:t; showCR:'ms'.
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coll
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].
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ObjectMemory garbageCollect.
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doBench value:class.
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ObjectMemory garbageCollect.
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doBench := [:class |
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|coll t|
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t := Time millisecondsToRun:[
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coll := class new.
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coll addAll:randomNumbers
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].
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Transcript show:'Time to insert random '; show:N; show:' en-bloque into ',class name,': '; show:t; showCR:'ms'.
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coll
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].
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ObjectMemory garbageCollect.
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doBench value:class.
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ObjectMemory garbageCollect.
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doBench := [:class |
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|coll t|
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t := Time millisecondsToRun:[
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coll := class new.
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(1 to:N) do:[:each | coll add:each].
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].
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Transcript show:'Time to insert in order '; show:N; show:' individually into ',class name,': '; show:t; showCR:'ms'.
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coll
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].
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ObjectMemory garbageCollect.
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doBench value:class.
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ObjectMemory garbageCollect.
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doBench := [:class |
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|coll t|
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t := Time millisecondsToRun:[
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coll := class new.
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coll addAll:(1 to:N).
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].
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Transcript show:'Time to insert in order '; show:N; show:' en-bloque into ',class name,': '; show:t; showCR:'ms'.
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coll
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].
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ObjectMemory garbageCollect.
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doBench value:class.
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ObjectMemory garbageCollect.
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doBench := [:class |
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|coll t|
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t := Time millisecondsToRun:[
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coll := class new.
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(N downTo:1) do:[:each | coll add:each].
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].
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Transcript show:'Time to insert in reverse order '; show:N; show:' individually into ',class name,': '; show:t; showCR:'ms'.
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coll
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].
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ObjectMemory garbageCollect.
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doBench value:class.
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ObjectMemory garbageCollect.
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doBench := [:class |
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|coll t|
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t := Time millisecondsToRun:[
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coll := class new.
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coll addAll:(N downTo:1).
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].
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Transcript show:'Time to insert in reverse order '; show:N; show:' en-bloque into ',class name,': '; show:t; showCR:'ms'.
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coll
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].
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ObjectMemory garbageCollect.
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doBench value:class.
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ObjectMemory garbageCollect.
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coll := class new.
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coll addAll:randomNumbers.
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t := Time millisecondsToRun:[
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coll removeAll:randomNumbers.
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].
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Transcript show:'Time to remove in random order '; show:N; show:' from ',class name,': '; show:t; showCR:'ms'.
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self assert:(coll isEmpty).
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ObjectMemory garbageCollect.
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coll := class new.
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coll addAll:randomNumbers.
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seq := randomNumbers copy sort.
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t := Time millisecondsToRun:[
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coll removeAll:seq.
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].
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Transcript show:'Time to remove in order '; show:N; show:' from ',class name,': '; show:t; showCR:'ms'.
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self assert:(coll isEmpty).
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ObjectMemory garbageCollect.
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coll := class new.
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coll addAll:randomNumbers.
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seq := randomNumbers copy sort reverse.
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t := Time millisecondsToRun:[
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coll removeAll:seq.
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].
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Transcript show:'Time to remove in reverse order '; show:N; show:' from ',class name,': '; show:t; showCR:'ms'.
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self assert:(coll isEmpty).
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ObjectMemory garbageCollect.
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Transcript cr.
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].
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!
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documentation
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"
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Time to insert random 100000 individually into SortedCollection: 6037ms
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Time to insert random 100000 en-bloque into SortedCollection: 172ms
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Time to insert in order 100000 individually into SortedCollection: 31ms
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Time to insert in order 100000 en-bloque into SortedCollection: 125ms
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Time to insert in reverse order 100000 individually into SortedCollection: 93ms
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Time to insert in reverse order 100000 en-bloque into SortedCollection: 125ms
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Time to remove in random order 100000 from SortedCollection: 6380ms
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Time to remove in order 100000 from SortedCollection: 109ms
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Time to remove in reverse order 100000 from SortedCollection: 125ms
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Time to insert random 100000 individually into AATree: 281ms
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Time to insert random 100000 en-bloque into AATree: 265ms
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Time to insert in order 100000 individually into AATree: 281ms
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Time to insert in order 100000 en-bloque into AATree: 328ms
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Time to insert in reverse order 100000 individually into AATree: 203ms
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Time to insert in reverse order 100000 en-bloque into AATree: 218ms
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Time to remove in random order 100000 from AATree: 452ms
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Time to remove in order 100000 from AATree: 312ms
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Time to remove in reverse order 100000 from AATree: 499ms
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Time to insert random 100000 individually into BinaryTree: 156ms
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Time to insert random 100000 en-bloque into BinaryTree: 156ms
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Time to insert in order 100000 individually into BinaryTree: 195921ms
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Time to insert in order 100000 en-bloque into BinaryTree: 205266ms
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Time to insert in reverse order 100000 individually into BinaryTree: 202271ms
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Time to insert in reverse order 100000 en-bloque into BinaryTree: 197684ms
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Time to remove in random order 100000 from BinaryTree: 234ms
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Time to remove in order 100000 from BinaryTree: 78ms
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Time to remove in reverse order 100000 from BinaryTree: 78ms
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"
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!
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test_Btree
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|coll sc randomNumbers|
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randomNumbers := (1 to:1000) collect:[:i |Random nextInteger].
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sc := SortedCollection new.
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sc addAll:randomNumbers.
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coll := BinaryTree new.
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coll addAll:randomNumbers.
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randomNumbers do:[:each |
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"/ Transcript showCR:'-----------'.
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"/ Transcript showCR:(coll instVarNamed:'treeRoot').
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"/ Transcript showCR:each.
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coll remove:each.
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sc remove:each.
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self assert:(sc asOrderedCollection = coll asOrderedCollection).
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].
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! !
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!CollectionBenchmarks class methodsFor:'documentation'!
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version
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^ '$Header$'
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! !
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