Bug 988904

Summary: Write performance regression in replicated, tcp, tx, sync library stress tests
Product: [JBoss] JBoss Data Grid 6 Reporter: Alan Field <afield>
Component: PerformanceAssignee: Nobody <nobody>
Status: VERIFIED --- QA Contact: Martin Gencur <mgencur>
Severity: high Docs Contact:
Priority: unspecified    
Version: 6.2.0CC: afield
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Target Release: 6.2.0   
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JDG 6.2.0.DR1 vs 6.1 library mode performance none

Description Alan Field 2013-07-26 16:34:42 UTC 
Created attachment 778831 [details]
JDG 6.2.0.DR1 vs 6.1 library mode performance

Average write response times are between 2% and 8% higher for 6.2.0.DR1 than the results for 6.1.0.GA

attaching ODS spreadsheet with more data. ("repl-tcp-tx-sync" sheet)
jobs:
JDG 6.1 results - https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/jdg-radargun-perf-jdg62-dist-vs-repl/6/

JDG 6.2.0.DR1 results - https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/jdg-radargun-perf-jdg62-dist-vs-repl/5/
Comment 2 Martin Gencur 2013-12-10 13:25:40 UTC 
The issue was fixed in JGroups 3.4.1
These configuration options are required for optimal performance:
(TCP|UDP).bundler_type="old"
UNICAST3 protocol
(UFC|MFC).max_credits="2M"