ATI X.Org, Mesa Performance In Ubuntu
Phoronix: ATI X.Org, Mesa Performance In Ubuntu
Late last month we published system benchmarks of Ubuntu 7.04 through 8.10 and had found -- at least with the Intel notebook we were using -- that the performance had degraded with time. This article had then resulted in benchmarks of Fedora 7 through 10 and most recently were Mac OS X 10.5 vs. Ubuntu 8.10 benchmarks. In our original article we hadn't focused much upon the graphics tests and we were just using ATI's binary driver, but per a request from Canonical's Bryce Harrington, we have carried out some open-source graphics tests on Ubuntu 7.04 through 8.10 and we started with the ATI performance.
Any thought to the degradation being the new drivers forced to use AtomBIOS?
If flops speed is better, then computational-wise, the kernal is more streamlined/optimized. But for desktop use, raw number calculations must take in account operations that suck bandwidth and clock time.
I wonder...if you use Ubuntu 7.10, which appears to have better frame rates and updated only the ATI drivers to their October/November level, would the framerates drop?
I think that AtomBIOS is only used during the initialization of the hardware, so if that is right then it shouldn't slow anything down except maybe boot times.
Originally Posted by The_Monkey_King
Yes exactly the same drop (& chop) in performance i seeing also on 9250 and, if someone want to know, that goes mainly
after this commit:
Implement mutex/locking around texture object reference counting.
I stil use Mesa-7.0.1 on Ubuntu 8.04, because of this.
Have you opened a bug report for it on freedesktop.org?
Originally Posted by dungeon
I also noticed 2D perfomance regression with my RV530 (3D was only supported since 8.10). For more information see:
A simple upgrade to xorg-server 1.5.3 using the packages from:
gives a nice speedup in 2D (with or without compiz):