RE: Performance of low-cpu utilisation benchmark regressed severely since 4.6

From: Doug Smythies
Date: Tue Apr 25 2017 - 17:03:54 EST


Hi Rafael,

Apologies, I reversed reported a couple of data points last night:

On 2017.04.25 00:13 Doug wrote:
> On 2017.04.24 07:25 Doug wrote:
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
>> Plus that patch is in progress.
>
>3387.76 Seconds.
> Idle power 3.85 watts.
>
> Other potentially interesting information for 2 hour idle test:
> Driver called 21209 times. Maximum duration 2396 Seconds. Minimum duration 20 mSec.

Wrong, should read:

Driver called 21209 times. Maximum duration 2510 Seconds. Minimum duration 0.587 mSec.

> Compared to kernel 4.11-rc7 (passive mode, schedutil governor)
> 3297.82 (re-stated from a previous e-mail)
> Idle power 3.81 watts
>
> Other potentially interesting information for 2 hour idle test:
> Driver called 1631 times. Maximum duration 2510 Seconds. Minimum duration 0.587 mSec.

Wrong, should read:

Driver called 1631 times. Maximum duration 2396 Seconds. Minimum duration 20 mSec.