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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2016/11/06 19:01:58 UTC
[jira] [Updated] (IGNITE-4099) .NET: Review method group usage
(micro-optimization)
[ https://issues.apache.org/jira/browse/IGNITE-4099?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vladimir Ozerov updated IGNITE-4099:
------------------------------------
Fix Version/s: (was: 1.8)
2.0
> .NET: Review method group usage (micro-optimization)
> ----------------------------------------------------
>
> Key: IGNITE-4099
> URL: https://issues.apache.org/jira/browse/IGNITE-4099
> Project: Ignite
> Issue Type: Improvement
> Components: platforms
> Reporter: Pavel Tupitsyn
> Priority: Minor
> Labels: .NET
> Fix For: 2.0
>
>
> There are a bunch of places where we use method group delegates, including hot paths in serialization/deserialization.
> Method group syntax is more concise, but causes extra allocations and worse performance: http://vibrantcode.com/2013/02/19/lambdas-vs-method-groups/
> Lambda syntax is more efficient. Static lambdas are cached, do not cause allocations, and perform on par with regular methods.
> * The fact that R# suggests replacing lambdas with method groups does not help. We should disable this in team-shared dotsettings file.
> * Heap Allocations R# plugin helps find these issues: https://blog.jetbrains.com/dotnet/2014/06/06/heap-allocations-viewer-plugin/
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