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From "Vyacheslav Daradur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-5097) BinaryMarshaller should write ints in "varint" encoding where it makes sense
Date Wed, 30 Aug 2017 16:43:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-5097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16147583#comment-16147583
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Vyacheslav Daradur commented on IGNITE-5097:
--------------------------------------------

[~isapego], thanks a lot! 
Rerun [ci.tests|https://ci.ignite.apache.org/viewQueued.html?itemId=801015].

> BinaryMarshaller should write ints in "varint" encoding where it makes sense
> ----------------------------------------------------------------------------
>
>                 Key: IGNITE-5097
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5097
>             Project: Ignite
>          Issue Type: Task
>          Components: general
>    Affects Versions: 2.0
>            Reporter: Vladimir Ozerov
>            Assignee: Vyacheslav Daradur
>              Labels: important, performance
>             Fix For: 2.3
>
>
> There are a lot of places in the code where we write integers for some special purposes.
Quite often their value will be vary small, so that applying "varint" format could save a
lot of space at the cost of very low additional CPU overhead. 
> Specifically:
> 1) Array/collection/map lengths
> 2) BigDecimal's (usually will save ~6 bytes)
> 3) Strings
> 4) Enum ordinals



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