* [Bug 55261] New: down_threshold is missing
@ 2013-03-15 6:14 bugzilla-daemon
2013-03-15 8:58 ` [Bug 55261] " bugzilla-daemon
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bugzilla-daemon @ 2013-03-15 6:14 UTC (permalink / raw)
To: cpufreq
https://bugzilla.kernel.org/show_bug.cgi?id=55261
Summary: down_threshold is missing
Product: Power Management
Version: 2.5
Kernel Version: Ubuntu 3.8.0-12.21-generic 3.8.2
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: cpufreq
AssignedTo: cpufreq@vger.kernel.org
ReportedBy: sworddragon2@aol.com
Regression: No
On my system the file /sys/devices/system/cpu/cpufreq/ondemand/down_threshold
doesn't exist while the file up_threshold does exist in the same directory. The
problem is without this file the value of down_threshold seems to be
automatically set to 10 so I'm not able to set up_threshold to a value lower
than 11.
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^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug 55261] down_threshold is missing 2013-03-15 6:14 [Bug 55261] New: down_threshold is missing bugzilla-daemon @ 2013-03-15 8:58 ` bugzilla-daemon 2013-03-15 12:02 ` bugzilla-daemon ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-03-15 8:58 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=55261 Viresh Kumar <viresh.kumar@linaro.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |viresh.kumar@linaro.org --- Comment #1 from Viresh Kumar <viresh.kumar@linaro.org> 2013-03-15 08:58:02 --- This happened a long time back for ondemand governor (it is still supported by conservative though). commit c29f1403098135bdef75b190a5037db514701031 Author: Dave Jones <davej@redhat.com> Date: Tue May 31 19:03:50 2005 -0700 [CPUFREQ] ondemand governor automatic downscaling [PATCH] [4/5] ondemand governor automatic downscaling Here is a change of policy for the ondemand governor. The modification concerns the frequency downscaling. Instead of decreasing to a lower frequency when the CPU usage is under 20%, this new policy automatically scales to the optimal frequency. The optimal frequency being the lowest frequency which provides enough power to not trigger the upscaling policy. Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com> --- drivers/cpufreq/cpufreq_ondemand.c | 117 +++++++++++++++++++++++------------------------------------------------------------------------------------ 1 file changed, 25 insertions(+), 92 deletions(-) -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 55261] down_threshold is missing 2013-03-15 6:14 [Bug 55261] New: down_threshold is missing bugzilla-daemon 2013-03-15 8:58 ` [Bug 55261] " bugzilla-daemon @ 2013-03-15 12:02 ` bugzilla-daemon 2013-03-26 7:47 ` bugzilla-daemon ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-03-15 12:02 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=55261 --- Comment #2 from sworddragon2@aol.com 2013-03-15 12:02:09 --- This makes it dificult to get an early upscaling of the cpu frequency. I'm trying to achieve this at ~1% cpu usage. Would it be possible after this commit to allow up_threshold to be lower (for example 1 on my system)? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 55261] down_threshold is missing 2013-03-15 6:14 [Bug 55261] New: down_threshold is missing bugzilla-daemon 2013-03-15 8:58 ` [Bug 55261] " bugzilla-daemon 2013-03-15 12:02 ` bugzilla-daemon @ 2013-03-26 7:47 ` bugzilla-daemon 2013-03-26 7:47 ` bugzilla-daemon 2013-04-18 6:59 ` bugzilla-daemon 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-03-26 7:47 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=55261 Aaron Lu <aaron.lu@intel.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |aaron.lu@intel.com AssignedTo|cpufreq@vger.kernel.org |aaron.lu@intel.com -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 55261] down_threshold is missing 2013-03-15 6:14 [Bug 55261] New: down_threshold is missing bugzilla-daemon ` (2 preceding siblings ...) 2013-03-26 7:47 ` bugzilla-daemon @ 2013-03-26 7:47 ` bugzilla-daemon 2013-04-18 6:59 ` bugzilla-daemon 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-03-26 7:47 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=55261 Aaron Lu <aaron.lu@intel.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED AssignedTo|aaron.lu@intel.com |cpufreq@vger.kernel.org -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 55261] down_threshold is missing 2013-03-15 6:14 [Bug 55261] New: down_threshold is missing bugzilla-daemon ` (3 preceding siblings ...) 2013-03-26 7:47 ` bugzilla-daemon @ 2013-04-18 6:59 ` bugzilla-daemon 4 siblings, 0 replies; 6+ messages in thread From: bugzilla-daemon @ 2013-04-18 6:59 UTC (permalink / raw) To: cpufreq https://bugzilla.kernel.org/show_bug.cgi?id=55261 Lan Tianyu <tianyu.lan@intel.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tianyu.lan@intel.com AssignedTo|cpufreq@vger.kernel.org |tianyu.lan@intel.com --- Comment #3 from Lan Tianyu <tianyu.lan@intel.com> 2013-04-18 06:59:14 --- Hi, sworddragon2: This is not a bug but "a change of policy for the ondemand governor". So close this as invalid. Hi Viresh: Could you answer sworddragon2's question in the comment2? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-04-18 6:59 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-03-15 6:14 [Bug 55261] New: down_threshold is missing bugzilla-daemon 2013-03-15 8:58 ` [Bug 55261] " bugzilla-daemon 2013-03-15 12:02 ` bugzilla-daemon 2013-03-26 7:47 ` bugzilla-daemon 2013-03-26 7:47 ` bugzilla-daemon 2013-04-18 6:59 ` bugzilla-daemon
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