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Posted to issues@ignite.apache.org by "Pavel Tupitsyn (JIRA)" <ji...@apache.org> on 2015/11/05 11:47:27 UTC

[jira] [Assigned] (IGNITE-1785) .Net: Improve PlatformMemory/PortableStream performance and memory usage

     [ https://issues.apache.org/jira/browse/IGNITE-1785?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pavel  Tupitsyn reassigned IGNITE-1785:
---------------------------------------

    Assignee:     (was: Pavel  Tupitsyn)

> .Net: Improve PlatformMemory/PortableStream performance and memory usage
> ------------------------------------------------------------------------
>
>                 Key: IGNITE-1785
>                 URL: https://issues.apache.org/jira/browse/IGNITE-1785
>             Project: Ignite
>          Issue Type: Improvement
>          Components: interop
>    Affects Versions: 1.5
>            Reporter: Pavel  Tupitsyn
>             Fix For: 1.6
>
>
> * PlatformMemory is just a single "long _memPtr" and can be easily converted to a struct to reduce allocations (it is allocated a lot)
> * PlatformMemoryStream works with PlatformMemory.Length and Capacity indirectly. By employing a struct approach from https://issues.apache.org/jira/browse/IGNITE-1428 we can work with Length and Capacity directly, which may be faster, and will eliminate the need for SyncronizeInput/Output calls.
> * PlatformMemoryStream is allocated even more often than PlatformMemory, need to investigate whether it can also be a struct. See how List<>.GetEnumerator works, which is a struct.



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