Bug 90791

Summary:	Bad performance with primusrun since Mesa 10.5.5
Product:	Mesa	Reporter:	AnAkkk <anakin.cs>
Component:	Drivers/DRI/i965	Assignee:	Ian Romanick <idr>
Status:	RESOLVED DUPLICATE	QA Contact:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity:	major
Priority:	medium	CC:	krh, stu_dby
Version:	10.6
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description AnAkkk 2015-05-31 09:50:53 UTC

Since Mesa 10.5.5 I am getting a quite bad performance with primusrun on my laptop to make use of the Nvidia card.
I've tested on CS GO and CS 1.6.

On CS GO, I used to have around 130 FPS, now I have around 80-90 FPS with drops below 60 which cause some stutters/mouse lag.
On CS 1.6, I have around 80-90 FPS with the nvidia card and 150+ with the intel card, so there is definitely a problem.

Here is the bug report on primus bug tracker:
https://github.com/amonakov/primus/issues/170

Setting PRIMUS_UPLOAD to 1 seem to boost the performance, but not as much as before. Here is what the primus doc says:
"0: autodetect, 1: textures, 2: PBO/glDrawPixels (needs Mesa-10.1+)"

This *may* be related to this commit:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=716b5f7cbe9cb7611d593f170a98facef58e3d0a

I have a Intel Core i7 4702MQ CPU.

Comment 1 AnAkkk 2015-06-02 12:12:01 UTC

Reverting http://cgit.freedesktop.org/mesa/mesa/commit/?id=536003c11e4cb1172c540932ce3cce06f03bf44e on mesa-git fixes the issue.

Comment 2 Alexander Monakov 2015-06-04 08:40:45 UTC


*** This bug has been marked as a duplicate of bug 90839 ***

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.