https://bugzilla.novell.com/show_bug.cgi?id=850794 https://bugzilla.novell.com/show_bug.cgi?id=850794#c0 Summary: severe performance regression on amd platform Classification: openSUSE Product: openSUSE 13.1 Version: Final Platform: x86-64 OS/Version: openSUSE 13.1 Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: gindikin@gmail.com QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:25.0) Gecko/20100101 Firefox/25.0 With openSUSE 13.1 I observe a severe performance regression as compared to openSUSE 12.3. Specifically, Wolfram Mathematica 9.0.1 benchmark gives 0.70 on 13.1 as opposed to 0.97 on 12.3. My own Mathematica code runs twice as slow. I think this might be related to broken CPU frequency scaling due to transition to systemd, see https://bbs.archlinux.org/viewtopic.php?id=169372 (maybe not). Specs: 2x Opteron 6272, Supermicro H8DGI-F, 128 GB memory. Reproducible: Always Steps to Reproduce: 1. Install openSUSE 13.1 x86_64 on AMD platform 2. Do Wolfram Mathematica benchmark 3. Compare result to benchmark @ openSUSE 12.3 (or earlier) Actual Results: Observe approx. 30% performance regression Expected Results: No significant regression in benchmark results -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.