Thread replies: 11
Thread images: 1
Thread images: 1
File: qemu12262013.jpg (30KB, 650x400px) Image search:
[Google]
30KB, 650x400px
Does anyone on /g/ own a 5930k/4790k and a GTX 1080? Because if anyone has either of those combos it would be really great if you could disable two cores or one core in the case of the 4790k for me and tell me if it bottlenecks your GPU usage or performance at all, I'm thinking of doing a QEMU/KVM VGA pass-through setup and if it bottlenecks on the 5930k and the 4790k I'm just going to get the 4790k and abandon hope of the QEMU/KVM dream as its cheaper and more power efficent.
If anyone could help me out that would be really cool as I cant find any benchmarks on the internet for my strange use case.
>>
Looking at the benchmarks between the processors the difference seems to be like..15% at most, go for 4790k
>>
>>55803086
But having to leave a core out for the host machine is what I'm worried about, I've heard stories of I5's with all of their cores enabled bottlenecking this card's usage.
>>
>>55803122
Depends on whats happening the background. Bare desktop and apps that arent active (for ex a browser thats not rendering in that moment) uses just about 1% (and that to keep redrawing) so that shouldn't be a worry.
>>
>>55803315
Alright, well I'll give it a shot. Not too much of a bother if it doesn't go well I'll just set up a dual boot like usual. Thanks for the help.
>>
>>55803050
i tried QEMU/KVM with VGA pass-through 10 months ago. my setup is i5-4690k + 970.
bottlenecks depend on what soft you are going to use. in my case, 3 out of 4 cores were assigned to VM. I was able to play MGS Ground Zeroes. FPS in VM was around 55 average without drops. FPS on native Win 7 was always capped at stable 60. (btw, just a heads up - I wasn't able to run games with Denuvo in the VM, something to do with the algorithms it uses to constatntly read/write data from HDD).
Can't try and test anything for you, I went back to win 7, decided it was too much of a hassle to switch back and forth. Also, fuck Denuvo.
You will have to do setup everything and test it yourself.
>>
>>55803453
PCI passthrough is a big thing, and you're also doing emulation of the same architecture, you prob don't have much to worry about. You're welcome
>>
>>55803122
since when do muh gaymes use multiple cpu cores?
>>
>>55804090
For quite a long time.
https://www.youtube.com/watch?v=9gy2jZTaaGw
>>
how does this compare to vbox for 3d (with the additions and all)
>>
>>55804793
Well the VGA passthrough gives the VM full control and access to the graphics card you give it, basically as if it was running natively. The downside is that you cant use the card under your host OS and you have to switch your mouse, keyboard, and display back and forth as it doesn't run in a window like vbox. For performance its king, for convenience its definitely worse.
Thread posts: 11
Thread images: 1
Thread images: 1