Gentoo Archives: gentoo-user

From: Matti Nykyri <matti.nykyri@×××.fi>
To: "gentoo-user@l.g.o" <gentoo-user@l.g.o>
Subject: Re: [gentoo-user] Best way for good video performance in virtual machines
Date: Thu, 25 Jun 2015 08:56:42
Message-Id: BC8012FF-A423-4558-B7DF-2B7C038686CC@iki.fi
In Reply to: Re: [gentoo-user] Best way for good video performance in virtual machines by Ralf
1 > On Jun 25, 2015, at 11:47, Ralf <ralf+gentoo@×××××××××××××××××××.de> wrote:
2 >
3 >> On 06/25/2015 01:29 AM, R0b0t1 wrote:
4 >> What will the Qt application be doing? Any of those setups should be
5 >> sufficient for a typical GUI program.
6 >>
7 >> Highest performance would probably be passing a discrete card to the
8 >> guest... not particularly the smartest move, but it would account for
9 >> every usecase. Barring that, #2 should have the least amount of
10 >> overhead, as X11 does the drawing on the system running the server (so
11 >> host's GPU instead of guest's virtual GPU).
12 > Well, the QT Application will have to show WebViews using WebKit which
13 > contain Flash content.
14 >
15 > Do NOT ask why, just accept it (so do I...) :-D
16 >
17 > Does qemu actually support passing a whole graphics card? Never tried it.
18
19 Yes it does. For examlpe if you have a windows client and pass the card to it the client can utilize directx and you get nearly native 3d performance in the games within the client. In that case the client owns the graphics card and the has to have another one should it require one...
20
21 --
22 -Matti