* [Bug 206517] New: scaling_cur_freq very different from cpuinfo_cur_freq on Acer Predator Helios 500 PH517-61-R0GX
@ 2020-02-13 15:27 bugzilla-daemon
2020-02-14 8:02 ` [Bug 206517] " bugzilla-daemon
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: bugzilla-daemon @ 2020-02-13 15:27 UTC (permalink / raw)
To: linux-pm
https://bugzilla.kernel.org/show_bug.cgi?id=206517
Bug ID: 206517
Summary: scaling_cur_freq very different from cpuinfo_cur_freq
on Acer Predator Helios 500 PH517-61-R0GX
Product: Power Management
Version: 2.5
Kernel Version: 5.5.1
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: cpufreq
Assignee: linux-pm@vger.kernel.org
Reporter: bero@lindev.ch
Regression: No
On an Acer Predator Helios 500 PH517-61-R0GX, scaling_cur_freq values can vary
greatly from cpuinfo_cur_freq:
$ sudo cat /sys/devices/system/cpu/*/cpufreq/cpuinfo_cur_freq
3200000
3200000
3200000
3200000
3200000
3200000
3200000
3200000
3200000
3200000
3200000
3200000
3200000
3200000
3200000
3200000
$ cat /sys/devices/system/cpu/*/cpufreq/scaling_cur_freq
548955
548955
548955
548955
548955
548955
548955
548955
548955
548955
548955
548955
548955
548955
548955
548955
Unfortunately, the performance I'm seeing on this box while compiling stuff
makes me think scaling_cur_freq is reporting correctly and cpuinfo_cur_freq is
telling lies.
This might be related to bug 203035
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^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug 206517] scaling_cur_freq very different from cpuinfo_cur_freq on Acer Predator Helios 500 PH517-61-R0GX 2020-02-13 15:27 [Bug 206517] New: scaling_cur_freq very different from cpuinfo_cur_freq on Acer Predator Helios 500 PH517-61-R0GX bugzilla-daemon @ 2020-02-14 8:02 ` bugzilla-daemon 2020-06-29 12:16 ` bugzilla-daemon 2020-06-29 12:17 ` bugzilla-daemon 2 siblings, 0 replies; 4+ messages in thread From: bugzilla-daemon @ 2020-02-14 8:02 UTC (permalink / raw) To: linux-pm https://bugzilla.kernel.org/show_bug.cgi?id=206517 Thomas Renninger (trenn@suse.de) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |trenn@suse.de --- Comment #1 from Thomas Renninger (trenn@suse.de) --- Best use: cpupower monitor You can also measure workloads, e.g. when compiling something: cpupower monitor make Not sure what distro you are using and what the name of the package or whether cpupower is packaged there... The sources, even it's userspace is part of the kernel git repo: tools/power/cpupower -- You are receiving this mail because: You are the assignee for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug 206517] scaling_cur_freq very different from cpuinfo_cur_freq on Acer Predator Helios 500 PH517-61-R0GX 2020-02-13 15:27 [Bug 206517] New: scaling_cur_freq very different from cpuinfo_cur_freq on Acer Predator Helios 500 PH517-61-R0GX bugzilla-daemon 2020-02-14 8:02 ` [Bug 206517] " bugzilla-daemon @ 2020-06-29 12:16 ` bugzilla-daemon 2020-06-29 12:17 ` bugzilla-daemon 2 siblings, 0 replies; 4+ messages in thread From: bugzilla-daemon @ 2020-06-29 12:16 UTC (permalink / raw) To: linux-pm https://bugzilla.kernel.org/show_bug.cgi?id=206517 Zhang Rui (rui.zhang@intel.com) changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |rui.zhang@intel.com --- Comment #2 from Zhang Rui (rui.zhang@intel.com) --- why I can not see this file /sys/devices/system/cpu/*/cpufreq/cpuinfo_cur_freq? please run "turbostat -o ts.out sleep 10" while compiling, and see what frequency is reported there. -- You are receiving this mail because: You are the assignee for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug 206517] scaling_cur_freq very different from cpuinfo_cur_freq on Acer Predator Helios 500 PH517-61-R0GX 2020-02-13 15:27 [Bug 206517] New: scaling_cur_freq very different from cpuinfo_cur_freq on Acer Predator Helios 500 PH517-61-R0GX bugzilla-daemon 2020-02-14 8:02 ` [Bug 206517] " bugzilla-daemon 2020-06-29 12:16 ` bugzilla-daemon @ 2020-06-29 12:17 ` bugzilla-daemon 2 siblings, 0 replies; 4+ messages in thread From: bugzilla-daemon @ 2020-06-29 12:17 UTC (permalink / raw) To: linux-pm https://bugzilla.kernel.org/show_bug.cgi?id=206517 Zhang Rui (rui.zhang@intel.com) changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|linux-pm@vger.kernel.org |rui.zhang@intel.com -- You are receiving this mail because: You are the assignee for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-06-29 21:31 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-02-13 15:27 [Bug 206517] New: scaling_cur_freq very different from cpuinfo_cur_freq on Acer Predator Helios 500 PH517-61-R0GX bugzilla-daemon 2020-02-14 8:02 ` [Bug 206517] " bugzilla-daemon 2020-06-29 12:16 ` bugzilla-daemon 2020-06-29 12:17 ` bugzilla-daemon
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