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Who When What Removed Added
Jaroslav Škarvada 2013-10-15 15:08:18 UTC Status NEW ASSIGNED
Ales Zelinka 2013-10-15 15:13:52 UTC CC azelinka
Jaroslav Škarvada 2013-11-06 12:25:39 UTC Blocks 1027250
Jaroslav Škarvada 2013-11-06 12:37:19 UTC Status ASSIGNED MODIFIED
Fixed In Version tuned-2.3.0-1.el7
errata-xmlrpc 2013-11-06 12:45:25 UTC Status MODIFIED ON_QA
Jaroslav Škarvada 2013-11-11 10:36:49 UTC Doc Text Cause:
Newer Intel CPUs have MSR tuning knob called MSR_IA32_ENERGY_PERF_BIAS which can be used for controlling bias to performance or powersave. Previously, Tuned didn't know how to control the MSR_IA32_ENERGY_PERF_BIAS.

Consequence:
The MSR_IA32_ENERGY_PERF_BIAS wasn't modified in the Tuned profiles, which could lead to negative impacts on performance / powersave.

Fix:
The code for controlling the MSR_IA32_ENERGY_PERF_BIAS was added into Tuned.

Result:
If kernel-tools package is installed, Tuned now modifies the MSR_IA32_ENERGY_PERF_BIAS according to selected profile.
Branislav Blaškovič 2014-01-06 13:25:48 UTC CC bblaskov
QA Contact qe-baseos-daemons bblaskov
Branislav Blaškovič 2014-01-06 14:57:51 UTC Status ON_QA VERIFIED
Ales Zelinka 2014-02-28 15:00:53 UTC CC azelinka
Ludek Smid 2014-06-13 09:35:26 UTC Status VERIFIED CLOSED
Resolution --- CURRENTRELEASE
Last Closed 2014-06-13 05:35:26 UTC

Back to bug 1015675