| #
8c37df3d |
|
22-Nov-2022 |
Thomas Renninger <trenn@suse.de> |
cpupower: rapl monitor - shows the used power consumption in uj for each rapl domain
This CPU power monitor shows the power consumption
as exposed by the powercap subsystem, cmp with:
Documentation/power/powercap/powercap.rst
cpupower monitor -m RAPL
| RAPL
CPU| pack | core | unco
0|6853926|967832|442381
8|6853926|967832|442381
1|6853926|967832|442381
9|6853926|967832|442381
Unfortunately RAPL domains cannot be directly mapped to the corresponding
CPU socket/package, core it belongs to.
Not sure this is possible at all with the current data exposed from the
kernel.
Still it can be worthful information for developers trying to optimize
power consumption of workloads or their system in general.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: Zhang Rui <rui.zhang@intel.com>
CC: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
|
| #
7ee767b6 |
|
28-Jun-2013 |
Thomas Renninger <trenn@suse.de> |
cpupower: Add Haswell family 0x45 specific idle monitor to show PC8,9,10 states
This specific processor supports 3 new package sleep states.
Provide a monitor, so that the user can see their usage.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
| #
7fe2f639 |
|
30-Mar-2011 |
Dominik Brodowski <linux@dominikbrodowski.net> |
cpupowerutils - cpufrequtils extended with quite some features
CPU power consumption vs performance tuning is no longer
limited to CPU frequency switching anymore: deep sleep states,
traditional dynamic frequency scaling and hidden turbo/boost
frequencies are tied close together and depend on each other.
The first two exist on different architectures like PPC, Itanium and
ARM, the latter (so far) only on X86. On X86 the APU (CPU+GPU) will
only run most efficiently if CPU and GPU has proper power management
in place.
Users and Developers want to have *one* tool to get an overview what
their system supports and to monitor and debug CPU power management
in detail. The tool should compile and work on as many architectures
as possible.
Once this tool stabilizes a bit, it is intended to replace the
Intel-specific tools in tools/power/x86
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
|