Re: [Nouveau] OpenGL context switching with Noveau

2017-02-08 Thread Roy Spliet
For details see my presentation on day 3 of XDC2016. TL;DW: A context switch on average takes ~25 microseconds, but depending on the display resolution and the load on the card times up to 130 microseconds have been observed. The average does not appear to differ much between cards as the

Re: [Nouveau] OpenGL context switching with Noveau

2017-02-08 Thread Ilia Mirkin
Context switching = very slow on NVIDIA. Don't do it if you can avoid it. Each context is like a megabyte of data, if not more. Each time it has to get saved off and restored. On Wed, Feb 8, 2017 at 1:38 PM, Sampsa Riikonen wrote: > Dear Devs, > > (I hope this question is

[Nouveau] OpenGL context switching with Noveau

2017-02-08 Thread Sampsa Riikonen
Dear Devs, (I hope this question is not that much OT for this list..) My question is about fast OpenGL context switching, i.e. when there are several processes using the same nvidia card, each one with their own OpenGL context. In my specific case, I am trying to dump 720p video

[Nouveau] [Bug 97367] k520 card produce high volume of IRQ

2017-02-08 Thread bugzilla-daemon
https://bugs.freedesktop.org/show_bug.cgi?id=97367 --- Comment #10 from Mathieu Maret --- This issue can be reproduce on 4.10-rc10 -- You are receiving this mail because: You are the assignee for the bug.___ Nouveau mailing

[Nouveau] [Bug 97367] k520 card produce high volume of IRQ

2017-02-08 Thread bugzilla-daemon
https://bugs.freedesktop.org/show_bug.cgi?id=97367 --- Comment #9 from Mathieu Maret --- Created attachment 129412 --> https://bugs.freedesktop.org/attachment.cgi?id=129412=edit Tracing using ftrace during 1sec -- You are receiving this mail because: You are the