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Posted to issues@ignite.apache.org by "Nikolay Izhikov (Jira)" <ji...@apache.org> on 2020/04/17 07:36:00 UTC

[jira] [Updated] (IGNITE-12491) Eliminate contention on ConcurrentHashMap.size()

     [ https://issues.apache.org/jira/browse/IGNITE-12491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nikolay Izhikov updated IGNITE-12491:
-------------------------------------
    Fix Version/s: 2.8.1

> Eliminate contention on ConcurrentHashMap.size()
> ------------------------------------------------
>
>                 Key: IGNITE-12491
>                 URL: https://issues.apache.org/jira/browse/IGNITE-12491
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Ivan Bessonov
>            Assignee: Ivan Bessonov
>            Priority: Major
>             Fix For: 2.9, 2.8.1
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Methods who invoked checkpointReadLock/checkpointReadUnlock spend much time on calculation of quantity dirty pages. You will to see that when have some hundreds of regions.
> Any persistent operation will be cost hundreds invokes of size on ConcurrentHashMap.



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