https://bugzilla.novell.com/show_bug.cgi?id=689720 https://bugzilla.novell.com/show_bug.cgi?id=689720#c0 Summary: Intel Turbo Boost not working Xeon X7560 under 2.6.34.7-0.7 Classification: openSUSE Product: openSUSE 11.3 Version: Final Platform: x86-64 OS/Version: openSUSE 11.3 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: petersch@cs.ucla.edu QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; SunOS i86pc; rv:2.0) Gecko/20100101 Firefox/4.0 Intel Xeon X7560 is supposed to go up to 2.666 GHz, cf. http://ark.intel.com/Product.aspx?id=46499 On a fully updated OpenSuse 10.3 system running 2.6.34.7-0.7-desktop x86_64 no process gets scheduled above 2262.000 MHz, even when limited to a particular core with taskset. Turbo Boost is enabled in the BIOS. scaling_available_frequencies are identical for all cores: cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 2262000 2261000 2128000 1995000 1862000 1729000 1596000 1463000 1330000 1197000 1064000 Reproducible: Always Steps to Reproduce: 1. run any single high-load process 2. 3. Actual Results: # grep MHz /proc/cpuinfo | grep 2 cpu MHz : 2262.000 Expected Results: # grep MHz /proc/cpuinfo | grep 2 cpu MHz : 2666.000 -- 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.