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
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 intefaces 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.
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