network optimization

etc/sysctl.d/99-custom-hosting.conf

@@ -1,6 +1,5 @@
 net.ipv4.tcp_fin_timeout = 30
 net.ipv4.ip_local_port_range = 1024 65535
-net.ipv4.tcp_timestamps = 0
 net.ipv4.tcp_fastopen = 3
 net.core.somaxconn = 2048
 net.core.netdev_max_backlog = 5000
@@ -8,3 +7,6 @@ vm.swappiness=1
 vm.dirty_ratio = 40
 vm.overcommit_ratio = 100
 vm.vfs_cache_pressure = 50
+net.core.default_qdisc = fq
+net.ipv4.tcp_congestion_control = bbr
+net.ipv4.tcp_notsent_lowat = 16384