Bug 790928 - Broker needs better coalescing of outbound messages.
Summary: Broker needs better coalescing of outbound messages.
Keywords:
Status: NEW
Alias: None
Product: Red Hat Enterprise MRG
Classification: Red Hat
Component: qpid-cpp
Version: Development
Hardware: Unspecified
OS: Unspecified
medium
low
Target Milestone: ---
: ---
Assignee: Ken Giusti
QA Contact: Zdenek Kraus
URL:
Whiteboard:
Depends On:
Blocks: 794748 808134
TreeView+ depends on / blocked
 
Reported: 2012-02-15 18:24 UTC by Ken Giusti
Modified: 2020-11-04 19:14 UTC (History)
4 users (show)

Fixed In Version: qpid-cpp-0.18-1
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed:
Target Upstream Version:


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Links
System ID Private Priority Status Summary Last Updated
Apache JIRA QPID-3841 0 None None None Never

Description Ken Giusti 2012-02-15 18:24:44 UTC
Description of problem:

Slight performance improvement. See upstream bugfix by Gordon:

https://issues.apache.org/jira/browse/QPID-3841

Comment 2 Zdenek Kraus 2013-01-24 17:40:54 UTC
Results of performance measure by qpid-cpp-benchmark using qpid-send, qpid-receive on qpid-0.14-22 vs. qpid-0.18-13 shows:

RHEL 5.9 i686 and x86_64 have 3~20%, but mostly 10% performance boost, and in all cases they have positive improvement

on the other hand

RHEL 6.3 i686 have about -5% performance loss in most cases
RHEL 6.3 x86_64 have around 50:50 distribution of improvement and losses, thus I assume that the change has no real effect on performance

the measurements on RHEL 6.3 i686 and x86_64 was measured/runned twice to make check, both runs did show same results.

for RHEL6 this is not an improvement, moving back
-> ASSIGNED

Comment 3 Justin Ross 2013-01-28 14:50:06 UTC
We're going to address this in the next release.

Comment 4 Zdenek Kraus 2013-01-31 13:49:55 UTC
I've performed some additional performance measurement between upstream version of qpidd. Specifically between r1244503 and r1244504, that introduces the relevant change (https://reviews.apache.org/r/3897/diff/1/?file=74938#file74938line102). I we see no significant performance improvement nor loss.


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