Bumblebee benchmark results

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Hello, I wanted to see if running bumblebee is a good method of switching the GPU back to linux after running a VM. Maybe this will be of use to someone.

I ran all of my benchmarks on Unigine Heaven on OpenGL at 1920x1080 8xAA fullscreen on ultra quality with Extreme Tessellation. My VM setup consists of KVM/Qemu with virt-manager frontend. Sound comes through pulseaudio/ich9 as other sound settings gave me an FPS drop.

Here is my hardware and other stats.

System: Host: warden Kernel: 4.9.8-1-ARCH x86_64 (64 bit gcc: 6.3.1)

      Desktop: Cinnamon 3.2.8 (Gtk 3.22.8) Distro: Antergos Linux

Machine: Device: desktop Mobo: ASUSTeK model: PRIME Z270-A v: Rev 1.xx

      UEFI [Legacy]: American Megatrends v: 0701 date: 12/27/2016

CPU: Quad core Intel Core i7-7700K (-HT-MCP-) cache: 8192 KB

      flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 33612

      clock speeds: max: 4700 MHz 1: 799 MHz 2: 1458 MHz 3: 1974 MHz

      4: 800 MHz 5: 799 MHz 6: 1298 MHz 7: 854 MHz 8: 799 MHz

Graphics: Card-1: Intel Device 5912 bus-ID: 00:02.0

      Card-2: NVIDIA GP104 [GeForce GTX 1070] bus-ID: 01:00.0

      Display Server: X.Org 1.19.1 drivers: nvidia (unloaded: fbdev,vesa,nouveau) FAILED: modesetting

      Resolution: [email protected]

      GLX Renderer: GeForce GTX 1070/PCIe/SSE2

      GLX Version: 4.5.0 NVIDIA 375.26 Direct Rendering: Yes

Unigine Heaven Benchmark	run1	run2	run3	run4	run5	Average
Native Windows	2205	2185	2185	2204	2208	2206.5
Native Linux same xserver	2034	2051	2056	2050	2040	2037
Native Linux diff xserver	2215	2197	2197	2197	2217	2216
Native iGPU linux	118					118
Primus no vsync	2173	2170	2172	2174	2161	2167
VirtualGl no compression	1338	1360	1357	1357	1357	1347.5
virtualgl jpg	1341	1338	1339	1339	1339	1340
virtualgl proxy	1345	1343	1341	1340	1338	1341.5
virtualgl rgb	1371	1369	1370	1369	1369	1370
virtualgl xv	1196	1198	1198	1198	1197	1196.5
virtualgl yuv	1358	1342	1341	1340	1337	1347.5

A bar graph of this data can be seen here on imgur.

Different compression methods for the virtualGL bridge are mostly not worth it. Only RGB compression actually gives a performance increase over using no compression. However, no method compares to using the primus bridge.

Using the primus bridge results in enourmous performance gains. I was puzzled until I read more about how x-server and bumblebee works (Rendering in a separate xserver). I decided to test Unigine Heaven in a different xserver by switching to a different tty and running heaven from there.

xinit ./heaven -- :1

So it seems by having the iGPU render the desktop, the dGPU can focus solely on the application being focused on.

Running a separate xserver for games might work for some people, but it's not my cup of tea. I am really happy with bumblebee and primus and it will be my setup for a while.

tl;dr: bumblebee and primus good.

edit: formatting galore

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