Update network performance 99-cachyos-settings.conf #185
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I have been testing these for about a week. I had some inaccurate values, but it seems promising now. Rustdesk can achieve usable gaming at 80-100 FPS on a LAN connection. Sunshine + Moonlight also works perfectly, even at a 150 Mbps bitrate with H.265, with no drops or lags. Results over WAN (Tailscale) are pretty similar when direct P2P is achieved and both sides have a decent network. I believe my personal tweaks would be useful for CachyOS.
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btw: Option |
Do you have any benchmarks against stock settings? |
Could you consider a benchmark as the state when RustDesk dropped frames, was slower, and provided an overall crappy experience? Similar to Moonlight, it was great below 80 Mbps, but higher values had micro-lags. With these settings, I can use 150 Mbps, and the latency is stable, and the stream is smooth and stable. If I weren't seeking performance improvements for Tailscale, RustDesk, and even Syncthing, then this pull request wouldn't be created. |
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1. UDP Latency Assurance (Audio/Input Stability)
2. Connection Queue Expansion (P2P Stability)
3. Socket Resource Recycling (Port Exhaustion)
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Sounds interesting, but to understand how it really is you need tests in different situations. I believe that there is no way without benchmarks. Also because of these changes there may be small problems for people who have less than 4GB of RAM, correct me if I'm wrong. |
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Interesting changes. I know from experience that network benchmarks can be very time-consuming, as many external factors come into play. Nevertheless, out of interest, I will conduct a before-and-after comparison of network performance. |
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Here is a results of ma changes, which are ready to merge for now. I made two videos on my YT. At both scenarios I was able basically smooth remote gaming experience, which I've never seen with Rustdesk, it's even not design for this use case... xD I can also shows combo Sunshine + Moonlight, where I can run 150 Mbps at LAN, sadly I can't test 150 Mbps over 5G CGNAT with Tailscale since I'm limited by local 5G tower, which reaching only to 70 - 100 Mbps. |
Yeah, I know... I have my personal values a little bit different ... my machine is a little bit different thing than gaming rigs: My machine so I tried keep it still RAM friendly. As we have https://wiki.cachyos.org/installation/installation_prepare/#system-requirements at recommended 8GB... well, I think people with 3 GB RAM should be happy system even works. Sadly, even my older laptop have 32 GB RAM, It would be nice, if anyone could test it under 8 GB RAM device. |
Changed from ```bash net.ipv4.udp_rmem_min = 32768 net.ipv4.udp_wmem_min = 32768 ``` to ```bash net.ipv4.udp_rmem_min = 8192 net.ipv4.udp_wmem_min = 8192 ``` Reason: It could kill RAM on low-performance device and from my testing Moonlight + Sunshine or Rustdesk still works fine even with `8192`, so no reason to use higher. Right now it's just 2x time than Arch default, but Arch wiki suggest values `8192`. https://wiki.archlinux.org/title/Sysctl#Increase_the_memory_dedicated_to_the_network_interfaces
…of net.ipv4.tcp_keepalive_time in Arch Linux Changed description to align value of net.ipv4.tcp_keepalive_time in Arch Linux: https://gitlab.archlinux.org/archlinux/rfcs/-/merge_requests/51
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Closing this one since it's too much changes, let's merge a smaller one and let's wait how it will work for users. |
I have been testing these for about a week. I had some inaccurate values, but it seems promising now.
Rustdesk can achieve usable gaming at 80-100 FPS on a LAN connection. Sunshine + Moonlight also works perfectly, even at a 150 Mbps bitrate with H.265, with no drops or lags.
Results over WAN (Tailscale) are pretty similar when direct P2P is achieved and both sides have a decent network.
I believe my personal tweaks would be useful for CachyOS.