speedy_backend(1) the backend process for a persistent Perl interpreter


none ; this program is not meant to be called directly.


speedy, short for SpeedyCGI, is a way to run perl scripts persistently, which can make them run much more quickly.

After the script is initially run, instead of exiting, the perl interpreter is kept running inside a backend process, speedy_backend. During subsequent runs, this interpreter is used to handle new executions instead of starting a new perl interpreter each time. A very fast frontend program, speedy, written in C, is executed for each request. This fast frontend then contacts the persistent Perl process, which is usually already running, to do the work and return the results.

Each perl script runs in its own Unix process, so one perl script can't interfere with another. Command line options can also be used to deal with programs that have memory leaks or other problems that might keep them from otherwise running persistently.

The speedy front end connects to the back end process, speedy_backend, via a Unix socket in /tmp. A queue is kept in a shared file in /tmp that holds an entry for each process. In that queue are the pids of the perl processes waiting for connections. The frontend pulls a process out of this queue, connects to its socket, sends over the environment and argv, and then uses this socket for stdin/stdout to the perl process.


/tmp/speedy* A unix socket used to connect to the frontend process.


 Sam Horrocks
 [email protected]


This manual page was created by Niko Tyni <[email protected]> for Debian GNU/Linux, because the original program does not have one. It is based on the original and more complete CGI::SpeedyCGI(3pm) manual page.