# Server Performance Tuning - Created by Antigravity
# Applied: 2025-12-28

# Reduce swappiness (prefer RAM over swap)
vm.swappiness = 10

# Increase file descriptor limits
fs.file-max = 2097152
fs.nr_open = 2097152

# TCP Performance Tuning
net.core.somaxconn = 65535
net.core.netdev_max_backlog = 65535
net.ipv4.tcp_max_syn_backlog = 65535
net.ipv4.tcp_fin_timeout = 15
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_keepalive_time = 300
net.ipv4.tcp_keepalive_probes = 5
net.ipv4.tcp_keepalive_intvl = 15

# TCP Memory Settings (for 62GB RAM server)
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216

# Enable TCP Fast Open
net.ipv4.tcp_fastopen = 3

# BBR Congestion Control (if kernel supports)
net.core.default_qdisc = fq
net.ipv4.tcp_congestion_control = bbr