[jira] [Commented] (IGNITE-9784) Performance drop on sql yardstick benchmarks

["Alexey Goncharuk (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-9784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16639476#comment-16639476 ] 

Alexey Goncharuk commented on IGNITE-9784:
------------------------------------------

The regression is caused by a more frequent checkpoint triggering caused by IGNITE-6552. Re-check with increased WAL history size confirms that there is no performance drop.
As a solution, we should choose default history size as 2x of checkpoint buffer size (unless overridden by a user).

> Performance drop on sql yardstick benchmarks
> --------------------------------------------
>
>                 Key: IGNITE-9784
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9784
>             Project: Ignite
>          Issue Type: Bug
>          Components: sql
>    Affects Versions: 2.7
>            Reporter: Ilya Suntsov
>            Assignee: Alexey Goncharuk
>            Priority: Blocker
>             Fix For: 2.7
>
>         Attachments: Screen Shot 2018-10-03 at 4.52.22 PM.png
>
>
> Please take a look at the attachment.
> Grid configuration:
>  * 4 servers / 8 clients
>  * java 8
>  * 64 threads, 60s warmup, 180s duration



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