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Alexey Goncharuk commented on IGNITE-7638: ------------------------------------------ Dmitriy, thanks for investigating this. At the first glance, it looks like we can implement robin-hood hash stealing algorithm to deal with REMOVED stubs. > 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: Major > 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 > {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)