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Posted to proton@qpid.apache.org by "Jeff Ortel (JIRA)" <ji...@apache.org> on 2016/02/01 20:25:40 UTC

[jira] [Updated] (PROTON-1120) Memory leak using proton.utils

     [ https://issues.apache.org/jira/browse/PROTON-1120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jeff Ortel updated PROTON-1120:
-------------------------------
    Attachment: memory-leak.py

reproducer used to collection and display statistics.

> Memory leak using proton.utils
> ------------------------------
>
>                 Key: PROTON-1120
>                 URL: https://issues.apache.org/jira/browse/PROTON-1120
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: python-binding
>    Affects Versions: 0.10
>         Environment: python-qpid-proton-0.10-2.fc23.x86_64
> And 0.9-13
>            Reporter: Jeff Ortel
>         Attachments: memory-leak.py
>
>
> I have observed a fairly substantial memory leak using the blocking classes in proton.utils.  Mainly with sending messages.  
> Observations:
> {code}
> growth =  52 MB  for  10,000 messages sent
> growth = 104 MB  for  20,000 messages sent
> leak   =  52 MB  per  10,000 sends or ~5 kB / send
> {code}
> The attached reproducer, can be used to collect and display statistics.  There is likely a better method for measuring the memory growth  but this was easy.  Perhaps there is something incorrect/missing with the way I'm using proton or measuring the memory growth/leak?
> {code}
> ============================================
> 10000 messages
> ============================================
> total kB          242088   16256    7552 - sending
> total kB          293980   68224   59520 - sent
> total kB          293980   68228   59524 - receiving
> total kB          294236   68340   59632 - received
> Size        Growth       Context
> __________|____________|__________
> 242088 kB   +242088 kB   sending
> 293980 kB   + 51892 kB   sent
> 293980 kB   +     0 kB   receiving
> 294236 kB   +   256 kB   received
> ============================================
> 20000 messages
> ============================================
> total kB          294236   68348   59640 - sending
> total kB          397820  171896  163232 - sent
> total kB          397820  171900  163236 - receiving
> total kB          398020  172060  163396 - received
> Size        Growth       Context
> __________|____________|__________
> 294236 kB   +294236 kB   sending
> 397820 kB   +103584 kB   sent
> 397820 kB   +     0 kB   receiving
> 398020 kB   +   200 kB   received
> {code}



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