[Nouveau] [Bug 96355] Performance: extra&costly SSBO validation even when SSBO aren't used

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96355

--- Comment #13 from Karol Herbst <freedesktop at karolherbst.de> ---
(In reply to Gediminas Jakutis from comment #8)
> I don't know about the reporter's case, but I have ran some benchmarks and
> tests with f018456901ee291181ecce74c30b19c9f6731f06 (latest revision before
> those four patches) and fd6bbc2ee205ed02f66a8d8ef5b2adf4005d588c (the latest
> revision, with the four patches) on my GTX 770 + FX-8320 @ 4.1GHz, focusing
> on CPU-bound cases.
> 
> The results are all to the better - on most games I tested I see 4-10%
> performance boost. Am only going to list a pair of highlights:
> 
> · Age of Wonders III, my own severely CPU limited testcase: 21 fps -> 26
> fps, a jump by a whooping 23.8% (still CPU-bound, though).
> · Payday 2, well, this game has no [reproducable] way to benchmark it, but
> the gameplay used to be nightmare filled with severe rubber-banding, running
> just some 18-22 fps in many situations, all while painfully CPU-bound. Now,
> most of rubber-banding is either gone or is a lot less noticeable. The
> framerate in these aforementioned situations went up to 25-60; dipping below
> 30 very rarely, while mostly maintaining over 2x performance boost.
> Basically, these four patches made the game *playable* on nouveau. (The game
> is still very painfully CPU-bound, though.)
> 
> So, at least here, I can see clear performance benefits.
> Will leave to be marked as RESOLVED by the reporter; don't want to hijack
> his issue.

I saw the same thing with PAYDAY 2, but I couldn't restore the low perf so I
guess they just reworked their engine while they added the SMAA and SSAO thing,
so I doubt those patches had anything to do with that :/

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20160606/77ac1135/attachment-0001.html>