Bug 8557 - Default value for TaskScheduler.MaximumConcurrencyLevel different between MS.NET and Mono
Summary: Default value for TaskScheduler.MaximumConcurrencyLevel different between MS....
Alias: None
Product: Class Libraries
Classification: Mono
Component: mscorlib (show other bugs)
Version: 2.10.x
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2012-11-22 10:54 UTC by Karol Gwaj
Modified: 2012-11-23 06:42 UTC (History)
2 users (show)

See Also:
Is this bug a regression?: ---
Last known good build:


Description Karol Gwaj 2012-11-22 10:54:47 UTC
Looks like default value for TaskScheduler.MaximumConcurrencyLevel is different between MS.NET and Mono:
MONO: TaskScheduler.MaximumConcurrencyLevel == <processors count>
MS.NET: TaskScheduler.MaximumConcurrencyLevel == int.MaxValue

it is making difference, because Mono methods on Parallel class (ForEach, Invoke, ...) in some cases execute much slower than in MS.NET (if you specify parallelizm level greater than number of processors)
Comment 1 Marek Safar 2012-11-23 06:42:53 UTC
Fixed in master

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