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Posted to dev@johnzon.apache.org by "Mark Struberg (JIRA)" <ji...@apache.org> on 2017/09/22 20:25:01 UTC

[jira] [Resolved] (JOHNZON-134) performance regression due to releaseFallBackCopyBufferLength

     [ https://issues.apache.org/jira/browse/JOHNZON-134?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Struberg resolved JOHNZON-134.
-----------------------------------
    Resolution: Fixed

fixed autoExtendBuffer logic which did lead to trashing the buffer cache.

Done together with rsandtner.

> performance regression due to releaseFallBackCopyBufferLength
> -------------------------------------------------------------
>
>                 Key: JOHNZON-134
>                 URL: https://issues.apache.org/jira/browse/JOHNZON-134
>             Project: Johnzon
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.2, 1.1.3
>            Reporter: Mark Struberg
>            Assignee: Mark Struberg
>            Priority: Critical
>             Fix For: 1.1.4
>
>
> JOHNZON-125 did introduce a big performance problem.
> Due to setting releaseFallBackCopyBufferLength to false we will re-create the buffer with every parse. This leads to a 25x performance degrade in Johnzon



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