RadeonSI GLAMOR Benchmarks With X.Org Server 1.16

[phoronix]

Phoronix: RadeonSI GLAMOR Benchmarks With X.Org Server 1.16

With X.Org Server 1.16 having landed in Ubuntu 14.10, it's time for some benchmarks comparing the 1.15 and 1.16 releases on Ubuntu while using the GLAMOR 2D acceleration library.

http://www.phoronix.com/vr.php?view=20915

[Veerappan]

I like the improvement in the Circles GtkPerf benchmark. There's also a large improvement in the Lines benchmark. Lines definitely matters as that was the same situation that was causing Open/Libre Office Calc to perform very poorly on large spreadsheets.

I've been running X.org 1.16 on my home machine for a few days now, and it seems pretty snappy (not that it was a dog before).

[Alejandro Nova]

I like the improvement in the Circles GtkPerf benchmark. There's also a large improvement in the Lines benchmark. Lines definitely matters as that was the same situation that was causing Open/Libre Office Calc to perform very poorly on large spreadsheets.

I've been running X.org 1.16 on my home machine for a few days now, and it seems pretty snappy (not that it was a dog before).

Fedora 21, X.org 1.16, AMD E-450 (Evergreen).

Switching from EXA to GLAMOR improves gtkperf by 20%.

[profoundWHALE]

Wow, those are some really nice gains.

O.o

[droidhacker]

Hmm, interesting. I'd be also interested in seeing how the performance of GLAMOR+Radeon has changed as a result of DRM and Mesa changes.

[blackiwid]

Fedora 21, X.org 1.16, AMD E-450 (Evergreen).

Switching from EXA to GLAMOR improves gtkperf by 20%.

Did they also fix this big BUG that is in Fedora with glamor and gtk dropdowns.
I use i3wm, but if I go into settings and press a pulldown menu from a gtk app, my screen freezes after a few second both screeens go black, and after 10 seconds or so it comes back. Pretty anoying.
I use Glamor Fedora 20 Kabini Chip, so I guess its a glamor bug, not 100% shure was not so anoying that I cared enough to pin it down to that, but its very likely that that is the problem.

Also had 1-2 Xserver crashes over the last months becasue of that. Maybe somebody else reported this bug before me? Find fedora bugtracker pretty uncomfortable, would like a nntp group where I can post such reports, http-bugtrackers with email passwort bullshit... just is so unergonic that it hurts.

[Marc Driftmeyer]

Trapezoidal improvements should far outway those of squares. It really should need no explaination.

[Adarion]

First thought: HD 7950 and R7 260 x, umm, true 2d-office-chips. Weren't there any other chip available for that kind of test? (e.g. E- and C-Series kind of chips)
Second thought: Ouch for the R7. / Glamor not yet ready / but is default. Umm.
Third: Well, that new X version seems to move some things.

[rohcQaH]

Switching from EXA to GLAMOR improves gtkperf by 20%.

Awesome. Evergreen has a pretty strong 2d driver. I was under the impression that GLAMOR was meant to simplify code (no more 2d drivers for each chip), I didn't expect going through the whole openGL layer to be a performance win.

First thought: HD 7950 and R7 260 x, umm, true 2d-office-chips. Weren't there any other chip available for that kind of test? (e.g. E- and C-Series kind of chips)

Those don't have dedicated 2d units, either, so I'm not sure if that changes the results.

Second thought: Ouch for the R7. / Glamor not yet ready / but is default. Umm.

R7 260 and HD 7950 are using the same driver, so they're equally "ready".
The 7950 wins in memory intensive benchmarks - scroll, fill, copy. If you take a look at the memory bandwidths of HD 7950 and R7 260X, you might understand why.

[curaga]

Awesome. Evergreen has a pretty strong 2d driver. I was under the impression that GLAMOR was meant to simplify code (no more 2d drivers for each chip), I didn't expect going through the whole openGL layer to be a performance win.

It's basically untouched for years, and missing a lot of possible optimizations, because AMD doesn't care, and the hw asm used in there is too difficult for random contributors. If it was fully tuned, glamor couldn't stand a chance.