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https://issues.apache.org/jira/browse/IGNITE-6033?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Rakov resolved IGNITE-6033.
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Resolution: Fixed
> Add sorted and multithreaded modes in checkpoint algorithm
> ----------------------------------------------------------
>
> Key: IGNITE-6033
> URL: https://issues.apache.org/jira/browse/IGNITE-6033
> Project: Ignite
> Issue Type: Improvement
> Components: persistence
> Affects Versions: 2.1
> Reporter: Ivan Rakov
> Assignee: Ivan Rakov
> Fix For: 2.3
>
>
> Sequential writes to SSD are faster than random. When we write checkpoint, we
> iterate through hash table, which is actually random order. We should add an
> option to write pages sorted by page index. It should be configured in
> PersistentStoreConfiguration.
> Also, we already have PersistentStoreConfiguration#checkpointingThreads
> option, but we don't use it - we create thread pool, but submit only one task
> to it. This should be fixed as well.
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