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https://issues.apache.org/jira/browse/IGNITE-4374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15861290#comment-15861290
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Vyacheslav Daradur commented on IGNITE-4374:
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Yakov, 
bq. I changed the procedure a bit
I saw it, thanks.
It's considered in the table above .

bq. it would be cool if you document current checks on readme.io
Ok, I will do it soon.

> Ignite should validate JVM and OS configuration and output warning in log
> -------------------------------------------------------------------------
>
>                 Key: IGNITE-4374
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4374
>             Project: Ignite
>          Issue Type: Improvement
>          Components: documentation
>            Reporter: Yakov Zhdanov
>            Assignee: Vyacheslav Daradur
>         Attachments: x32_not_optimized.png, x32_optimized.png, 
> x64_not_optimized.png, x64_optimized.png
>
>
> Currently we have GridPerformanceSuggestions that output suggestions to logs 
> on Ignite start on how Ignite can be improved.
> I suggest to go a little bit deeper and validate more configuration options 
> and add validation for JVM and OS settings.
> Ignite should output warning if:
> * GC logging is not enabled
> * MaxDirectMemorySize is not set (-XX:MaxDirectMemorySize)
> * Heap size is greater than 30,5G and JVM cannot use compressed oops
> * Any of the recommended OS setting described here 
> https://apacheignite.readme.io/docs/jvm-and-system-tuning are not properly 
> set 



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