# Disable swap
vm.swappiness = 0

# Maximum percentage of memory with disk write buffers
vm.dirty_ratio = 30

# Percentage of memory with disk write buffers until writes start
vm.dirty_background_ratio = 15

# Prefer directory and inode caches
vm.vfs_cache_pressure = 50

# Prefer low latency over high throughput
net.ipv4.tcp_low_latency = 1

# Enable TCP Fast Open (lower latency)
net.ipv4.tcp_fastopen = 3

# Set congestion control to BBR
net.ipv4.tcp_congestion_control = bbr
net.core.default_qdisc = fq

# Additional send buffer size (improves HTTP/2 prioritization)
net.ipv4.tcp_notsent_lowat = 16384

# Maximum number of established connections
net.core.somaxconn = 32768

# Maximum number of half-open connections
net.ipv4.tcp_max_syn_backlog = 32768

# Receive queue size per CPU core
net.core.netdev_max_backlog = 16386

# Read buffer size
net.ipv4.tcp_rmem = 4096 65536 102400000
net.ipv4.udp_rmem_min = 16384
net.core.rmem_default = 65536
net.core.rmem_max = 102400000

# Write buffer size
net.ipv4.tcp_wmem = 4096 65536 102400000
net.ipv4.udp_wmem_min = 16384
net.core.wmem_default = 65536
net.core.wmem_max = 102400000

# Maximum per-socket optional memory buffer size
net.core.optmem_max = 65536

# Disable slow start restart
net.ipv4.tcp_slow_start_after_idle = 0