PowerTOP 2.0 Finally Sees Release

[phoronix]

Phoronix: PowerTOP 2.0 Finally Sees Release

After a long and drawn out development cycle, PowerTOP 2.0 is finally available...

http://www.phoronix.com/vr.php?view=MTEwMTA

[Adarion]

Just installed it. Now, of course, it needs some kernel features enabled that I left out during menuconfig. Sadly I can't find a list with requirements quickly. I still remember old powertop also wanted a few things you normally don't have in a kernel config on a standard productive box. So reconfiguring, recompiling and restarting. Well hopefully debugfs is enough. The tools itself is definitely among intel's better ideas. Though there is still a lot in a machine that you can't influnece - be it a hardware or driver limitation.

[tiba]

@Adarion: Well, this can be easily solved, a list of necessary kernel features is provided by the README file. Here is the part I refer to:

Kernel Parameters:
------------------

PowerTOP needs some kernel config options enabled in order function properly.
As of linux-3.3.0 these are (list probably incomplete):

CONFIG_NO_HZ
CONFIG_HIGH_RES_TIMERS
CONFIG_HPET_TIMER
CONFIG_CPU_FREQ_GOV_ONDEMAND
CONFIG_USB_SUSPEND
CONFIG_SND_AC97_POWER_SAVE
CONFIG_TIMER_STATS
CONFIG_PERF_EVENTS
CONFIG_PERF_COUNTERS
CONFIG_TRACEPOINTS
CONFIG_TRACING
CONFIG_EVENT_POWER_TRACING_DEPRECATED
ACPI_PROCFS_POWER

The patches in the patches/ sub-directory are required for PowerTOP to function
fully.

[Adarion]

Heh, oh, good old readme. That happens when you install it by package manager and not downloading it manually. You lose contact with the readme files.
It seems I was just missing debugfs, it runs now after just one recompile. Thanks anyway.
Now I see quite a bunch of things it suggests to fix. More work.

[uid313]

Maybe something for the Phoronix Test Suite to integrate?

If data from PowerTOP were aggrevated from thousands of systems, it could be helpful?

[DeiF]

And still if I set a VM writeback timeout greater than 1500 it's reported as 'bad'.

[curaga]

Haven't tried the new version, but in 1.13 it recommended enabling the HDA sound timeout, even though it was enabled, just with a different timeout than powertop wanted. Does 2.x do that too? :P