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From willr3 <>
Subject [GitHub] activemq-artemis pull request #970: pool InVMConnection buffers and copy to ...
Date Wed, 18 Jan 2017 18:06:28 GMT
GitHub user willr3 opened a pull request:

    pool InVMConnection buffers and copy to retain

    We are running performance tests against Wildfly 10.1.0. Our current tests generate 2400
MB/s of garbage and over 200 MB/s is coming from the InVMConnection buffer allocation. Changing
to Pooled Netty buffers and copying the content into Unpooled buffers when the buffer is retained
(e.g. by  MessageImpl) decreases the allocation rate by 200 MB/s and decreases total GC Pause
time from 39 seconds to 29 seconds.

You can merge this pull request into a Git repository by running:

    $ git pull master-InVMPool

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #970
commit 8e4f0d60a632e4d19b93a269ef1c5071dfb02a5d
Author: Will Reichert <>
Date:   2017-01-04T16:14:16Z

    pool InVMConnection buffers and copy to retain


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