On Tue, 2021-11-23 at 09:17 +0000, Tvrtko Ursulin wrote: > > On 22/11/2021 18:44, Rodrigo Vivi wrote: > > On Wed, Nov 17, 2021 at 02:49:55PM -0800, Vinay Belgaumkar wrote: > > > From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > > > > > > While the power consumption is proportional to the frequency, > > > there is > > > also a static draw for active gates. The longer we are able to > > > powergate > > > (rc6), the lower the static draw. Thus there is a sweetspot in > > > the > > > frequency/power curve where we run at higher frequency in order > > > to sleep > > > longer, aka race-to-idle. This is more evident at lower > > > frequencies, so > > > let's look to bump the frequency if we think we will benefit by > > > sleeping > > > longer at the higher frequency and so conserving power. > > > > > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > > > Cc: Vinay Belgaumkar <vinay.belgaumkar@xxxxxxxxx> > > > Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx> > > > > Please let's not increase the complexity here, unless we have a > > very good > > and documented reason. > > > > Before trying to implement anything smart like this in the driver > > I'd like > > to see data, power and performance results in different platforms > > and with > > different workloads. > > Who has such test suite and test farm which isn't focused to > workloads > from a single customer? ;( Okay, maybe we don't need to cover the world here. But without seen any data at all it is hard to make this call. > > Regards, > > Tvrtko
