| 3 Jan 2024 |
 crushing-smite | In reply to @atemu12:matrix.org
Or a stutter-free experience I do | 11:01:35 |
| crushing-smite | In reply to @atemu12:matrix.org
I'm sure there's more, I have stopped bothering with it at some point because my games all work on Linux these days Please tell :( | 11:01:44 |
 @atemu12:matrix.org | Again, there's thousands of guides on that | 11:01:57 |
| crushing-smite | so google "site:reddit.com kvm windows gaming"? | 11:02:20 |
| @atemu12:matrix.org | /r/VFIO | 11:02:37 |
| @atemu12:matrix.org | And the Arch Wiki | 11:02:41 |
 K900 | I feel like most of that info is very outdated by now, because QEMU definitely uses THP by default now | 11:02:44 |
| @atemu12:matrix.org | You need to set that up on the host side however | 11:03:05 |
| crushing-smite | what's THP, and what was before it? | 11:03:07 |
| K900 | I'm not sure how much impact CPU pinning will have, probably some, but also probably not a lot unless there's contention | 11:03:10 |
| K900 | In reply to@atemu12:matrix.org
You need to set that up on the host side however NixOS defaults to madvise | 11:03:45 |
| K900 | Which QEMU can use | 11:03:48 |
| @atemu12:matrix.org | And you need to set up HP manually because QEMU's THP might not actually use HP if memory is too fragmented and defrag can't be done with PCIe passthru | 11:03:58 |
| K900 | In reply to@crushing-smite:matrix.org
what's THP, and what was before it? THP is "transparent huge pages", which basically means the kernel manages memory in bigger chunks | 11:04:04 |
| @atemu12:matrix.org | In reply to @atemu12:matrix.org
And you need to set up HP manually because QEMU's THP might not actually use HP if memory is too fragmented and defrag can't be done with PCIe passthru Defrag at a later time that is | 11:04:50 |
| K900 | https://developers.redhat.com/blog/2021/04/27/benchmarking-transparent-versus-1gib-static-huge-page-performance-in-linux-virtual-machines#benchmarks | 11:04:58 |
| K900 | Found a Red Hat blog post | 11:05:02 |
| K900 | 3% performance difference | 11:05:06 |
| @atemu12:matrix.org | In games it's a lot more than that | 11:05:15 |
| @atemu12:matrix.org | Especially CPU-bound ones | 11:05:30 |
| @atemu12:matrix.org | It was a little while ago but something on the order of 10-20% | 11:05:56 |
| crushing-smite | can I automate game installation with lutris on nixos? | 11:13:37 |
| crushing-smite | provide installation instruction for the install wizard, or such? | 11:13:47 |
| @atemu12:matrix.org | Theoretically that's possible but I would highly recommend against it | 11:14:12 |
| @atemu12:matrix.org | Treat game installations as state. | 11:14:22 |
| crushing-smite | would it be possible with some other software? | 11:14:39 |
| crushing-smite | "possible" as "close to a sensible approach" | 11:15:16 |
| @atemu12:matrix.org | Likely but what problem are you trying to solve with that? | 11:15:19 |
| crushing-smite | have my games in dotfiles and nixstore | 11:15:32 |
| @atemu12:matrix.org | And what problem are you trying to solve by doing so? | 11:16:21 |
