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| author | Petri Hienonen <petri.hienonen@gmail.com> | 2025-12-19 14:18:12 +0200 |
|---|---|---|
| committer | Petri Hienonen <petri.hienonen@gmail.com> | 2025-12-19 14:18:12 +0200 |
| commit | 6b6da0fb56ab9dfedd4a1b5db8f77cb1fc53fcb0 (patch) | |
| tree | 80c1b6e86ffc7ed3f19874648b5182902581433e | |
| parent | be53e925cf40f46913cb3dfdc36af3a69df13f9b (diff) | |
| download | nixos-6b6da0fb56ab9dfedd4a1b5db8f77cb1fc53fcb0.tar.zst | |
Update sysctl
| -rw-r--r-- | roles/shared.nix | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/roles/shared.nix b/roles/shared.nix index 62bd787..c6c0810 100644 --- a/roles/shared.nix +++ b/roles/shared.nix @@ -88,25 +88,30 @@ ]; kernel.sysctl = { "kernel.sysrq" = 1; + "net.core.default_qdisc" = "fq"; "net.core.netdev_max_backlog" = 25000; "net.core.rmem_default" = 67108864; # allow network stack 64MB "net.core.rmem_max" = 67108864; # allow network stack 64MB "net.core.wmem_default" = 67108864; "net.core.wmem_max" = 67108864; - "net.core.default_qdisc" = "fq"; "net.ipv4.tcp_congestion_control" = "bbr"; "net.ipv4.tcp_ecn" = 1; "net.ipv4.tcp_fastopen" = 3; "net.ipv4.tcp_fin_timeout" = 10; "net.ipv4.tcp_low_latency" = 1; - "net.ipv4.tcp_mtu_probing" = 2; # recommended for hosts with jumbo frames enabled + "net.ipv4.tcp_min_rtt_wlen" = 60; + "net.ipv4.tcp_mtu_probing" = 2; "net.ipv4.tcp_no_metrics_save" = 1; - "net.ipv4.tcp_rmem" = "4096 87380 33554432"; # increase Linux autotuning TCP buffer limit to 32MB + "net.ipv4.tcp_rmem" = "4096 87380 33554432"; # 32MB "net.ipv4.tcp_slow_start_after_idle" = 0; "net.ipv4.tcp_syncookies" = 1; "net.ipv4.tcp_timestamps" = 1; + "net.ipv4.tcp_window_scaling" = 1; "net.ipv4.tcp_wmem" = "4096 65536 33554432"; + "net.ipv4.udp_early_demux" = 1; + "net.ipv4.udp_rmem_min" = 16384; + "net.ipv6.conf.default.accept_ra" = 2; "net.ipv6.conf.default.router_solicitations" = 3; "net.ipv6.conf.default.router_solicitation_interval" = 1; |