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Starman is a high-performance preforking Perl PSGI web server

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README.md

NAME

Starman - High-performance preforking PSGI/Plack web server

SYNOPSIS

# Run app.psgi with the default settings
> starman

# run with Server::Starter
> start_server --port 127.0.0.1:80 -- starman --workers 32 myapp.psgi

# UNIX domain sockets
> starman --listen /tmp/starman.sock

Read more options and configurations by running `perldoc starman` (lower-case s).

DESCRIPTION

Starman is a PSGI perl web server that has unique features such as:

  • High Performance

    Uses the fast XS/C HTTP header parser

  • Preforking

    Spawns workers preforked like most high performance UNIX servers do. Starman also reaps dead children and automatically restarts the worker pool.

  • Signals

    Supports HUP for graceful worker restarts, and TTIN/TTOU to dynamically increase or decrease the number of worker processes, as well as QUIT to gracefully shutdown the worker processes.

  • Superdaemon aware

    Supports Server::Starter for hot deploy and graceful restarts.

  • Multiple interfaces and UNIX Domain Socket support

    Able to listen on multiple interfaces including UNIX sockets.

  • Small memory footprint

    Preloading the applications with --preload-app command line option enables copy-on-write friendly memory management. Also, the minimum memory usage Starman requires for the master process is 7MB and children (workers) is less than 3.0MB.

  • PSGI compatible

    Can run any PSGI applications and frameworks

  • HTTP/1.1 support

    Supports chunked requests and responses, keep-alive and pipeline requests.

  • UNIX only

    This server does not support Win32.

PERFORMANCE

Here's a simple benchmark using Hello.psgi.

-- server: Starman (workers=10)
Requests per second:    6849.16 [#/sec] (mean)
-- server: Twiggy
Requests per second:    3911.78 [#/sec] (mean)
-- server: AnyEvent::HTTPD
Requests per second:    2738.49 [#/sec] (mean)
-- server: HTTP::Server::PSGI
Requests per second:    2218.16 [#/sec] (mean)
-- server: HTTP::Server::PSGI (workers=10)
Requests per second:    2792.99 [#/sec] (mean)
-- server: HTTP::Server::Simple
Requests per second:    1435.50 [#/sec] (mean)
-- server: Corona
Requests per second:    2332.00 [#/sec] (mean)
-- server: POE
Requests per second:    503.59 [#/sec] (mean)

This benchmark was processed with ab -c 10 -t 1 -k on MacBook Pro 13" late 2009 model on Mac OS X 10.6.2 with perl 5.10.0. YMMV.

NAMING

Starman?

The name Starman is taken from the song (Star na Otoko) by the Japanese rock band Unicorn (yes, Unicorn!). It's also known as a song by David Bowie, a power-up from Super Mario Brothers and a character from Earthbound, all of which I love.

Why the cute name instead of more descriptive namespace? Are you on drugs?

I'm sick of naming Perl software like HTTP::Server::PSGI::How::Its::Written::With::What::Module and people call it HSPHIWWWM on IRC. It's hard to say on speeches and newbies would ask questions what they stand for every day. That's crazy.

This module actually includes the longer alias and an empty subclass HTTP::Server::PSGI::Net::Server::PreFork for those who like to type more ::'s. It would actually help you find this software by searching for PSGI Server Prefork on CPAN, which i believe is a good thing.

Yes, maybe I'm on drugs. We'll see.

AUTHOR

Tatsuhiko Miyagawa miyagawa@bulknews.net

Andy Grundman wrote Catalyst::Engine::HTTP::Prefork, which this module is heavily based on.

Kazuho Oku wrote Net::Server::SS::PreFork that makes it easy to add Server::Starter support to this software.

LICENSE

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

Plack Catalyst::Engine::HTTP::Prefork Net::Server::PreFork

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