[jira] [Updated] (TAP5-2334) Decrease number of operations with HashMap #1

["Michael Mikhulya (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAP5-2334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Mikhulya updated TAP5-2334:
-----------------------------------

    Attachment: 0001-TAP5-2334-Decrease-number-of-operations-with-HashMap.patch

> Decrease number of operations with HashMap #1
> ---------------------------------------------
>
>                 Key: TAP5-2334
>                 URL: https://issues.apache.org/jira/browse/TAP5-2334
>             Project: Tapestry 5
>          Issue Type: Improvement
>            Reporter: Michael Mikhulya
>              Labels: performance
>         Attachments: 0001-TAP5-2334-Decrease-number-of-operations-with-HashMap.patch
>
>
> During profiling I found that there is a lot of work with HashMap inside tapestry framework.
> With following patch time per request decreased on 2.2ms (4.6% of overall time). Measurements were done with apache benchmark on a real application after warm up phase.
> The idea behind the patch is to get rid of double lookup inside HashMap (or event triple lookup) whenever only one lookup is enough.
> Also this patch decrease number of ThreadLocal.get calls in two times by moving PerThreadServiceCreator functionality into PerthreadManager.



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