[jira] [Resolved] (LUCENE-4624) Compare Lucene memory estimator with terracota's and Alex Shipilev's object-layout

["Dawid Weiss (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-4624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dawid Weiss resolved LUCENE-4624.
---------------------------------
    Resolution: Won't Fix

RUE was removed from Lucene anyway (and the one used in tests has some simplifications but doesn't touch unsafe, etc.)

> Compare Lucene memory estimator with terracota's and Alex Shipilev's object-layout
> ----------------------------------------------------------------------------------
>
>                 Key: LUCENE-4624
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4624
>             Project: Lucene - Core
>          Issue Type: Task
>            Reporter: Dawid Weiss
>            Assignee: Dawid Weiss
>            Priority: Minor
>
> Alex Snaps informed me that there's a sizeof estimator in terracota --
> http://svn.terracotta.org/svn/ehcache/trunk/ehcache/ehcache-core/src/main/java/net/sf/ehcache/pool/sizeof/
> looks interesting, they have some VM-specific methods. Didn't look too deeply though; if somebody has the time to check out the differences and maybe compare the estimation differences it'd be nice.
> There is also another tool by Aleksey Shipilev. It looks very good to me (Aleksey has deep knowledge of JVM internals).
> https://github.com/shipilev/java-object-layout/



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