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" LinkedList>>#reject:thenCollect: is slow
Pharo image: Pharo7.0.0alpha#71276
Virtual machine used: CoInterpreter VMMaker.oscog-eem.2401 uuid: 29232e0e-c9e3-41d8-ae75-519db862e02c Jun 28 2018
StackToRegisterMappingCogit VMMaker.oscog-eem.2401 uuid: 29232e0e-c9e3-41d8-ae75-519db862e02c Jun 28 2018
VM: 201806281256 https://github.com/OpenSmalltalk/opensmalltalk-vm.git Date: Thu Jun 28 14:56:30 2018 CommitHash: a8a1dc1 Plugins: 201806281256 https://github.com/OpenSmalltalk/opensmalltalk-vm.git
Platform Name: unix
Class browser used (if applicable): ClyFullBrowser
Steps to reproduce:
#. evaluate
{
[(LinkedList withAll: (1 to: 10)) reject: [ :each | each even ] thenCollect: [ :each | each squared ]] bench.
[(LinkedList withAll: (1 to: 100)) reject: [ :each | each even ] thenCollect: [ :each | each squared ]] bench.
[(LinkedList withAll: (1 to: 1000)) reject: [ :each | each even ] thenCollect: [ :each | each squared ]] bench.
[(LinkedList withAll: (1 to: 10000)) reject: [ :each | each even ] thenCollect: [ :each | each squared ]] bench.
}
Actual Result:
#. #('162448.131 per second' '7490.706 per second' '107.978 per second' '1.155 per second')
Expected Result:
#. more closed to the performance of an Array
{
[(Array withAll: (1 to: 10)) reject: [ :each | each even ] thenCollect: [ :each | each squared ]] bench.
[(Array withAll: (1 to: 100)) reject: [ :each | each even ] thenCollect: [ :each | each squared ]] bench.
[(Array withAll: (1 to: 1000)) reject: [ :each | each even ] thenCollect: [ :each | each squared ]] bench.
[(Array withAll: (1 to: 10000)) reject: [ :each | each even ] thenCollect: [ :each | each squared ]] bench.
}
#('668173.896 per second' '96296.541 per second' '10131.721 per second' '988.602 per second')
"
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Priority: 5 – Fix If Time
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Status: Work Needed
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Assigned to: Everyone
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Milestone: Pharo7.0
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