[ 
https://issues.apache.org/jira/browse/IGNITE-7638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16387685#comment-16387685
 ] 

Dmitriy Pavlov commented on IGNITE-7638:
----------------------------------------

https://reviews.ignite.apache.org/ignite/review/IGNT-CR-510
https://github.com/apache/ignite/pull/3481
https://ci.ignite.apache.org/viewType.html?buildTypeId=IgniteTests24Java8_RunAll&branch_IgniteTests24Java8=pull%2F3481%2Fhead&tab=buildTypeStatusDiv


> Page replacement process in PDS mode affect segment loaded pages table 
> performance
> ----------------------------------------------------------------------------------
>
>                 Key: IGNITE-7638
>                 URL: https://issues.apache.org/jira/browse/IGNITE-7638
>             Project: Ignite
>          Issue Type: Bug
>          Components: persistence
>            Reporter: Dmitriy Pavlov
>            Assignee: Dmitriy Pavlov
>            Priority: Critical
>             Fix For: 2.5
>
>
> There is 
> - durable memory segment in PDS enabled data region 
> - page replacement started
> then Ignite performance slow down occurs, JFR & Visual VM shows get&put from 
> FullPageIdTable requires significiant time to be executed (~5-10% оf samples 
> count and up to 40% CPU usage)
> {noformat}
> Avg steps in loaded pages table, get: 9456 steps,  put: 20243 steps,  
> capacity: 20242 size: 7978
> {noformat}
> Effect of influence of FullPageID table is cumulative, once it starts to 
> grow, number of steps required grows also.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Reply via email to