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Date: Mon, 6 Oct 2014 17:01:34 +0000 (UTC)
From: "Joshua McKenzie (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CASSANDRA-7316) Windows: address potential JVM
 swapping
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    [ https://issues.apache.org/jira/browse/CASSANDRA-7316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14160506#comment-14160506 ] 

Joshua McKenzie commented on CASSANDRA-7316:
--------------------------------------------

Updated branch [here|https://github.com/josh-mckenzie/cassandra/compare/pageFileUsage].  Added check for automatically configured page file usage as well since it wasn't returning from the other check, and suppressed convenience printing of size of page files if we got 0 back.

Since I can't reproduce the 0 page file size problem [~philipthompson], please let me know how that part of it goes.  The MaximumSize is [supposed to come back as a uint32|http://msdn.microsoft.com/en-us/library/aa394245(v=vs.85).aspx] so the current code *should* work with that.

> Windows: address potential JVM swapping
> ---------------------------------------
>
>                 Key: CASSANDRA-7316
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7316
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Joshua McKenzie
>            Assignee: Joshua McKenzie
>            Priority: Minor
>              Labels: Windows, perfomance
>             Fix For: 2.1.1, 3.0
>
>         Attachments: 7316_v1.txt, 7316_v2.txt
>
>
> Similar to mlockall() in CLibrary.java for linux, it would be nice to lock the virtual address space on Windows to prevent page faults.
> One option: Reference API:  http://msdn.microsoft.com/en-us/library/windows/desktop/aa366895(v=vs.85).aspx


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