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Old 05-22-09, 07:32 PM   #13
JaXXoN
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Posts: 910
Default Re: Nvidia driver 180.60 will not install on kernel-rt

Quote:
Originally Posted by damentz View Post
Kernel preemption already included the mainline kernel already has a negligible performance impact.
I'm very well aware of these two facts.

Quote:
Originally Posted by damentz View Post
Performance loss is negligible. Ingo's RT patches are a different story though - I have not benchmarked those and have no need to currently.
The time I benchmarked the rt patches about two years ago, the
performance loss was negligible, too.

Quote:
Originally Posted by damentz View Post
you didn't even specify which modules, their versions, and which kernel version.
You didn't specify that, either, so I have been that fuzzy on purpose :-)

What I just wanted to say is: rt_preempt is about to enter mainline and
already worked fine along with the nvidia driver. If there is some regression,
then I'm interested to get that fixed. I currently don't have the need for
sub 30 microseconds hard real time requirements, right now, but in case
I urgently need it, it would be good to know that it is still working fine.

regards

Bernhard
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Old 05-23-09, 01:54 AM   #14
damentz
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Default Re: Nvidia driver 180.60 will not install on kernel-rt

Good point, I wish the same thing too.

I also care that they improve 3D rendering performance with RCU preemption or the RT kernel - right now, it seems the driver itself gets preempted and gameplay becomes choppy at best.
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Old 05-23-09, 03:56 AM   #15
FredMihir
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Default Re: Nvidia driver 180.60 will not install on kernel-rt

I have spent three days searching for some common reason for this.its help me

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