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umm - slow it down maybe?
Posted: Tue Sep 21, 2010 9:20 pm
by kivig
This should sound quite weird but I'd like to see performance limiter in Octane
Sometimes scene happens to be quite light and I get 3x the framerate I need. It'd be nice to be able to cut down rendering power, so gpu don't heat so much without need.
Usually I use pause button all the time because of that turbine inside my computer when I need no actual rendering. For instance when setting parameters that i know will do fine.
Looking for that button all the time is distracting.
Maybe there is a hot key? It'd be cool to do it with Caps Lock like in After Effects, so you get visual feedback from keyboard. Or Scroll Lock - who uses that button anyway

Re: umm - slow it down maybe?
Posted: Wed Sep 22, 2010 12:26 am
by jakchit
I certainly agree with this option idea if it is possible to do
Re: umm - slow it down maybe?
Posted: Wed Sep 22, 2010 1:30 am
by pixelrush
This must be the oddest request I have ever seen.
I think Refractive should use that in their sales promotion.
"Octane user asks for slow button"

Re: umm - slow it down maybe?
Posted: Wed Sep 22, 2010 2:22 am
by Carl S.
I will like to request a faster button instead.
Re: umm - slow it down maybe?
Posted: Wed Sep 22, 2010 5:15 am
by [gk]
Afaik it is not possible to slow down GPU's its either Idle or full speed.
Re: umm - slow it down maybe?
Posted: Wed Sep 22, 2010 9:00 am
by mib2berlin
On linux you could manipulate the performance level in different ways. With nvidia-settings you fix the performance level to 2, this is medium performance.
In xorg.conf maybe Option "RegistryDwords" "PerfLevelSrc=0x3333" to scale power level over temperatur and much more.
EnableMClkSlowdown
EnableCoreSlowdown
EnableNVClkSlowdown
PerfLevelSrc
PowerMizerEnable
PowerMizerDefault
PowerMizerDefaultAC
PowerMizerLevel
PowerMizerHardLevel
PowerMizerLevelAC
PowerMizerHardLevelAC
PowerSaverHsyncOn
In the comand shell you could set your card to a fixed clock frequecy with
nvidia-settings -q GPUPerfModes -t perf=2, nvclock=425, memclock=0
so it is easy to change with a batch script.
I think some of these features are also possible on windows, right?
Cheers mib
Re: umm - slow it down maybe?
Posted: Thu Sep 23, 2010 9:14 am
by kivig
mib2berlin wrote:On linux you could manipulate the performance level in different ways. With nvidia-settings you fix the performance level to 2, this is medium performance.
In xorg.conf maybe Option "RegistryDwords" "PerfLevelSrc=0x3333" to scale power level over temperatur and much more.
EnableMClkSlowdown
EnableCoreSlowdown
EnableNVClkSlowdown
PerfLevelSrc
PowerMizerEnable
PowerMizerDefault
PowerMizerDefaultAC
PowerMizerLevel
PowerMizerHardLevel
PowerMizerLevelAC
PowerMizerHardLevelAC
PowerSaverHsyncOn
In the comand shell you could set your card to a fixed clock frequecy with
nvidia-settings -q GPUPerfModes -t perf=2, nvclock=425, memclock=0
so it is easy to change with a batch script.
I think some of these features are also possible on windows, right?
Cheers mib
Well, I can downclock the card a bit but it isn't really noticeable.
Re: umm - slow it down maybe?
Posted: Thu Sep 23, 2010 9:52 am
by mib2berlin
Try rivatuner, then go to \ NVIDIA \ Overclocking, in that select EnablePerfLevelForcig = 1.
This force the card to performance level 1 from 0, 1, or 2, what is the maximum.
On my card it is 300, 400 or 576 Mhz Graphics Clock / 600, 800, 1242 Mhz Processor Clock.
It should be possible to do this with the Nvidia driver settings tool, but i am not a windows user and don“t know exactly.
With my card i always need to use the max. settings.
Cheers mib
Re: umm - slow it down maybe?
Posted: Thu Sep 23, 2010 1:50 pm
by Jaberwocky
Try the Afterburner utility and underclock the card down to slow it.Afterburner is an MSI overclock tool based on Rivatuner.That may work.

Re: umm - slow it down maybe?
Posted: Thu Sep 23, 2010 3:18 pm
by Daniel
pixelrush wrote:This must be the oddest request I have ever seen.
I think Refractive should use that in their sales promotion.
"Octane user asks for slow button"

That made me chuckle... Hehehe...