Originally posted by dungeon
View Post
Announcement
Collapse
No announcement yet.
RadeonSI/Gallium3D Still Appears To Have Greater CPU Overhead Than The NVIDIA Driver
Collapse
X
-
Originally posted by smitty3268 View Post
That will be a lot more interesting if Valve ever switches windows and linux both to use the Vulkan backend. Until then, you're comparing apples to oranges.
But OK, if that happen we will see - maybe it would change from 60%ish to something like even 80% of Windows on average.
On the other side if that does not happen, then what? am i right?Last edited by dungeon; 23 May 2017, 01:11 AM.
Comment
-
Originally posted by phoronix View PostPhoronix: RadeonSI/Gallium3D Still Appears To Have Greater CPU Overhead Than The NVIDIA Driver
In CPU-bound Linux games, the NVIDIA Linux driver still appears to perform better than the newest RadeonSI Gallium3D code...
http://www.phoronix.com/scan.php?pag...1080p-Overhead
If you want to mesure CPU charge of something, you have to make the something run the same way, and then monitor CPU charge.
So this eman you should bench using fixed and stable fps. For example, fixing the max fps at 100 in your example. And then monitor general charge individualy and real time on all core/thread, and CPU time used by the driver process, if possible.
Your graph just show that the NVidia card is faster when GPU bound, but that doesn't mean there is more driver overhead. Juste the card is faster when being CPU limited.
I don't know the Linux driver at all, but actually, it's most likely there is actually less driver overhead on the AMD platform, because AMD GPU use an hardware scheduler, when NVidia is a full software one.
Comment
-
Originally posted by smitty3268 View Post
To make my own points.
A better question would be why do I read other people's comments, and that's one I'm wondering myself right about now.
Anyway - what I see on all the benches thus far is:
- AMD OS driver matches the Windows performance on certain games, esp. if they are native games and not ports
- Same with AMD OS vs. Nvidia CS
- There are only few native games, most of them are ports (which is why we would still see a performance difference, even if the drivers had 1:1 Windows performance
- While still some bugs and performance issues are out in the wild, the out-of-the-box performance for most games is already good and playable
- The driver improvements are massive in the last couple of months
Personal flair:
- The relevance of those benchmarks is heavily biased to ones own lib of games (duh!)
- I was able to already convince some folks to try out Linux for gaming and so far, they are happy. They still expect a tad bit more of performance, but are surprised on how well it worked out
- Likes 1
Comment
-
Originally posted by smitty3268 View PostTo make my own points.
That is reality and best average showcase of a platform Not "if" statements and not what someone experimentally might get in his "patch me" laboratory and particulary not on the top of the line hardware As these kind of people might get more bump regardless of a platform, so that is again rule of a thumb.Last edited by dungeon; 23 May 2017, 04:50 AM.
Comment
Comment