| Summary: | queue flow control performance impact | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise MRG | Reporter: | Ken Giusti <kgiusti> | ||||
| Component: | qpid-cpp | Assignee: | Ken Giusti <kgiusti> | ||||
| Status: | CLOSED CURRENTRELEASE | QA Contact: | ppecka <ppecka> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | Development | CC: | freznice, gsim, ppecka | ||||
| Target Milestone: | 2.0 | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | qpid-cpp-server-0.9.1079953-1 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | Type: | --- | |||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Attachments: |
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A fix has been submitted on trunk upstream: http://svn.apache.org/viewvc?view=revision&revision=1079385 merged to upstream 0.10 branch: http://svn.apache.org/viewvc?view=revision&revision=1079864 Verified on RHEL 5/6 - i686 / x86_64 Tested with 100 runs per arch. Max 0,02 troughput difference observed, with latest packages. # rpm -qa | grep qpid python-qpid-0.10-1.el5.noarch qpid-cpp-client-0.10-8.el5.i386 qpid-cpp-client-ssl-0.10-8.el5.i386 qpid-java-jca-0.10-6.el5.noarch qpid-cpp-mrg-debuginfo-0.10-7.el5.i386 qpid-qmf-devel-0.10-10.el5.i386 qpid-java-client-0.10-6.el5.noarch qpid-qmf-0.10-10.el5.i386 qpid-cpp-client-devel-0.10-8.el5.i386 qpid-cpp-server-xml-0.10-8.el5.i386 qpid-cpp-server-cluster-0.10-8.el5.i386 qpid-tools-0.10-6.el5.noarch rh-qpid-cpp-tests-0.10-8.el5.i386 qpid-java-example-0.10-6.el5.noarch qpid-cpp-client-devel-docs-0.10-8.el5.i386 python-qpid-qmf-0.10-10.el5.i386 qpid-cpp-server-store-0.10-8.el5.i386 qpid-cpp-server-devel-0.10-8.el5.i386 qpid-qmf-debuginfo-0.10-10.el5.i386 qpid-dotnet-0.4.738274-2.el5.i386 qpid-java-common-0.10-6.el5.noarch qpid-cpp-server-0.10-8.el5.i386 qpid-cpp-server-ssl-0.10-8.el5.i386 --> VERIFIED |
Created attachment 480790 [details] spreadsheet showing test and results. Description of problem: It looks like the presence of flow control has no impact when it is disabled (to be expected) but with flow control on I see about a 10% loss in thruput even though there's no actual flow control happening in this scenario. Version-Release number of selected component (if applicable): development How reproducible: 100% Steps to Reproduce: 1. use qpid-cpp-benchmark - see attached spreadsheet. 2. 3. Actual results: 10% loss in thruput when flow control configured, but thresholds not hit. Expected results: Negligible thruput loss would be expected. Additional info: