Re: Kernel 4.7rc3 - Performance drop 30-40% for SPECjbb2005 and SPECjvm2008 benchmarks against 4.6 kernel
From: Peter Zijlstra
Date: Wed Jun 22 2016 - 03:16:24 EST
On Fri, Jun 17, 2016 at 01:04:23AM +0200, Jirka Hladky wrote:
> > > we see performance drop 30-40% for SPECjbb2005 and SPECjvm2008
> > Blergh, of course I don't have those.. :/
>
> SPECjvm2008 is publicly available.
> https://www.spec.org/download.html
Urgh, I _so_ hate java.
Why does it have to pop up windows split between my screens, total fail.
In any case, I run it like:
java -jar SPECjvm2008.jar --benchmarkThreads 40
because I have 40 cpus (2 sockets * 10 cores/socket * 2 threads/core).
It seems to produce numbers, but then ends with a splat:
Error while creating report: Assistive Technology not found: org.GNOME.Accessibility.AtkWrapper
java.awt.AWTError: Assistive Technology not found: org.GNOME.Accessibility.AtkWrapper
at java.awt.Toolkit.loadAssistiveTechnologies(Toolkit.java:807)
at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:886)
at sun.swing.SwingUtilities2.getSystemMnemonicKeyMask(SwingUtilities2.java:2020)
at javax.swing.plaf.basic.BasicLookAndFeel.initComponentDefaults(BasicLookAndFeel.java:1158)
at javax.swing.plaf.metal.MetalLookAndFeel.initComponentDefaults(MetalLookAndFeel.java:431)
at javax.swing.plaf.basic.BasicLookAndFeel.getDefaults(BasicLookAndFeel.java:148)
at javax.swing.plaf.metal.MetalLookAndFeel.getDefaults(MetalLookAndFeel.java:1577)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:539)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:579)
at javax.swing.UIManager.initializeDefaultLAF(UIManager.java:1349)
at javax.swing.UIManager.initialize(UIManager.java:1459)
at javax.swing.UIManager.maybeInitialize(UIManager.java:1426)
at javax.swing.UIManager.getDefaults(UIManager.java:659)
at javax.swing.UIManager.getColor(UIManager.java:701)
at org.jfree.chart.JFreeChart.<clinit>(JFreeChart.java:246)
at org.jfree.chart.ChartFactory.createXYLineChart(ChartFactory.java:1478)
at spec.reporter.BenchmarkChart.<init>(BenchmarkChart.java:47)
at spec.reporter.ReportGenerator.handleBenchmarkResult(ReportGenerator.java:141)
at spec.reporter.ReportGenerator.handleBenchmarksResults(ReportGenerator.java:105)
at spec.reporter.ReportGenerator.<init>(ReportGenerator.java:87)
at spec.reporter.ReportGenerator.main2(ReportGenerator.java:750)
at spec.reporter.Reporter.main2(Reporter.java:51)
at spec.harness.Launch.createReport(Launch.java:307)
at spec.harness.Launch.runBenchmarkSuite(Launch.java:250)
at spec.harness.Launch.main(Launch.java:452)
WTF a benchmark needs that crap is beyond me, but whatever, I have
numbers.
I'll try and reproduce.