[jbossts-issues] [JBoss JIRA] (JBTM-3235) Performance regression tests should consult the "Score Error" before reporting regressions
Michael Musgrove (Jira)
issues at jboss.org
Tue Dec 10 12:21:00 EST 2019
Michael Musgrove created JBTM-3235:
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Summary: Performance regression tests should consult the "Score Error" before reporting regressions
Key: JBTM-3235
URL: https://issues.redhat.com/browse/JBTM-3235
Project: JBoss Transaction Manager
Issue Type: Task
Components: Performance Testing
Affects Versions: 5.10.1.Final
Reporter: Michael Musgrove
Assignee: Michael Musgrove
Fix For: 5.next
We perform [microbenchmark performance testing of JTA|https://github.com/jbosstm/performance/tree/master/narayana/ArjunaJTA/jta] and we have Jenkins CI jobs (btny-pulls-performance and narayana-performance-version-comparison) that do regression testing against different versions of the product.
These tests use [JMH|https://openjdk.java.net/projects/code-tools/jmh/] to perform the test runs. The results of each run are reported as a CSV file in the following example format:
"Version","Benchmark","Mode","Threads","Samples","Score","Score Error (99.9%)","Unit"
5.5.32.Final,"io.narayana.perf.product.NarayanaComparison.test","thrpt",240,15,217253.976024,8720.877211,"ops/s"
5.9.0.Final,"io.narayana.perf.product.NarayanaComparison.test","thrpt",240,15,216552.983213,6586.482104,"ops/s"
This example shows a comparison between versions 5.5.32.Final and 5.9.0.Final. The data shows that
we measured using a mode called "thrpt" (ie transactions per second or TPS) and the Score shows the TPS was 217253 vers
us 216552. There is also a Score Error which I understand indicates the upper and lower error bars for the measurement.
None of our jobs take account of the error bars when reporting regressions. What we need to do is look at the Score Error to see if the runs are within tolerance before reporting a regression.
git clone https://github.com/jbosstm/performance # clone the performance git repo
cd performance
export JMHARGS="-t 240 -r 30 -f 3 -wi 5 -i 5" # tune the test using JMH config params
and then do a performance run:
export version=5.5.32.Final # set the target narayana version
./build.sh -f narayana/ArjunaJTA/jta/pom.xml clean install -DskipTests -Dnarayana.version=$version
java -classpath narayana/ArjunaJTA/jta/target/classes/ -Dcom.arjuna.ats.arjuna.common.propertiesFile=jbossts-properties.xml -jar narayana/ArjunaJTA/jta/target/benchmarks.jar io.narayana.perf.product.NarayanaComparison.* $JMHARGS -rf csv -rff io.narayana.perf.product.NarayanaComparison-$version.csv
The results are in the named csv file.
Then do the same for the second version
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