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https://issues.apache.org/jira/browse/IGNITE-6033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16125867#comment-16125867
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ASF GitHub Bot commented on IGNITE-6033:
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GitHub user glukos opened a pull request:
https://github.com/apache/ignite/pull/2441
IGNITE-6033 Add sorted and multithreaded modes in checkpoint algorithm
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gridgain/apache-ignite ignite-6033
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/ignite/pull/2441.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2441
----
commit f773c636b2fa2d59dec6f054d7c9af7b4bfee581
Author: Ivan Rakov <[email protected]>
Date: 2017-08-14T15:54:26Z
IGNITE-6033 Add sorted and multithreaded modes in checkpoint algorithm
----
> 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: 2.2
>
>
> 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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