UMEdesktop-power
Revision 3 as of 2008-08-06 16:13:35
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Advanced Power Management
Last Version these cases were run against |
ex. UME 8.04 |
ACPI Status
Collect information on ACPI status
- Run the following command for device information
acpi -V
- Run the following command for version information
acpi -v
S-State
Confirm the following state is supported
- Suspend to RAM, resume and check the keyboard, mouse, touchpad, video, USB, CDROM and network;
- Suspend to Disk, resume and check the keyboard, mouse, touchpad, video, USB, CDROM and network.
C-state
Confirm the following state is supported
- The every supported C-states can be entered on UP
- The every supported C-states can be entered on SMP.
- The C-states when AC adapter and battery are as power supplier
- The C-states change when switching between AC and Battery
P-state
Confirm the following state is supported
- Verify the performance governor: set to performance governor and check the frequencies of all the CPUS. It should be the maximum supported freq.
- Verify the powersave governor: set to powersave governor and check the frequencies of all the CPUS. It should be the minimum supported freq.
- Verify the userspace governor: set to userspace governor and make sure, that it is set properly; set to all possible frequencies and check whether it is set properly.
- Verify that the on-demand governor obeys the scaling max and min frequencies: set to ondemand governor and make sure it is set properly; Take all CPUs to idle and make sure the frequencies goes to the minimum; Keep all CPUs busy and make sure freq goes to the maximum.
T-state
Confirm the following state is supported
- T-state performance: observe any performance differences through the /sys/devices/system/cpu/cpu*/cpufreq/stats and /proc/acpi/processor/*/power during controlled workloads.