[jira] [Work logged] (ARTEMIS-3051) Fix MessageReferenceImpl::getMemoryEstimate

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARTEMIS-3051?focusedWorklogId=531231&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-531231 ]

ASF GitHub Bot logged work on ARTEMIS-3051:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 05/Jan/21 14:05
            Start Date: 05/Jan/21 14:05
    Worklog Time Spent: 10m 
      Work Description: franz1981 opened a new pull request #3398:
URL: https://github.com/apache/activemq-artemis/pull/3398


   https://issues.apache.org/jira/browse/ARTEMIS-3051


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 531231)
    Remaining Estimate: 0h
            Time Spent: 10m

> Fix MessageReferenceImpl::getMemoryEstimate
> -------------------------------------------
>
>                 Key: ARTEMIS-3051
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-3051
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>    Affects Versions: 2.16.0
>            Reporter: Francesco Nigro
>            Assignee: Francesco Nigro
>            Priority: Minor
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> MessageReferenceImpl::memoryOffset is used on MessageReferenceImpl::getMemoryEstimate: it reports 64 bytes.
> [https://github.com/openjdk/jol] is reporting 72 bytes for OpenJDK 64 bit using COOPS and 8 bytes alignment, that's very common, and that's a more accurate estimated footprint value.
> To be honest, a full-fat 64 bit JVM would use 112 bytes instead, but that could be improved in a bigger follow-up PR.
>  



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