CAKE egress shaping (test-deploy oneshot + systemd-networkd [CAKE] block on prod), nftables uid-based DSCP-EF + skb-priority marking for srcds UDP, plus rounding sysctls (udp_rmem_min/wmem_min, default_qdisc=fq_codel, tcp_congestion_control=bbr). Hardware-specific knobs stay documented escape hatches matching the perf-baseline boundary. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
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