[edit] FreeBSD Optimizations

45K active connections with about 5K req/s on FreeBSD 7.1

[edit] OS & Hardware

• FreeBSD 7.1
• AMD64, dual-core CPU
• 4GB RAM

[edit] Purpose

• Web server & reverse proxy

[edit] Load description

• 45K inactive keep-alive connections
• HTTP request is about 5,000 req/s, mostly small static files, all are cached by VM

[edit] System config

/boot/loader.conf:

vm.kmem_size=1844M
kern.maxbcache=64M
kern.ipc.maxpipekva=4M

/etc/sysctl.conf:

kern.ipc.nmbjumbop=192000
kern.ipc.nmbclusters=229376
kern.ipc.maxsockets=204800
net.inet.tcp.maxtcptw=163840
kern.maxfiles=204800

kern.ipc.somaxconn=4096

[edit] Nginx config

Not applicable.