SMP and lighty¶ Overview¶ lighty is a single-threaded, single-process, event-based, non-blocking-IO web server. While this is perfect for the performance it doesn't scale very well over CPUs. In most cases you don't have to care about it as lighty will usually not be able to utilize the full CPU to fill the network-pipe. All the heavy jobs are moved to external applications (see mod_fastcgi). But