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Starman - High-performance preforking PSGI web server
# Run app.psgi with the default settings
> starman
# run with Server::Starter
> start_server --port -- starman --max-servers 32 myapp.psgi
# UNIX domain sockets
> starman --listen /tmp/starman.sock
Starman is a PSGI perl web server that has unique features such as:
High Performance
Uses the fast XS/C HTTP header parser
Spawns workers preforked like most high performance UNIX servers do.
Starman also reaps dead children and automatically restarts the
worker pool.
Supports "HUP" for graceful restarts, and "TTIN"/"TTOU" to
dynamically increase or decrease the number of 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 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
Here's a simple benchmark using "Hello.psgi".
-- server: Starman
Requests per second: 6413.87 [#/sec] (mean)
-- server: AnyEvent
Requests per second: 3911.78 [#/sec] (mean)
-- server: AnyEvent::HTTPD
Requests per second: 2738.49 [#/sec] (mean)
-- server: Standalone
Requests per second: 1045.66 [#/sec] (mean)
-- server: Standalone (prefork)
Requests per second: 2792.99 [#/sec] (mean)
-- server: HTTP::Server::Simple
Requests per second: 1435.50 [#/sec] (mean)
-- server: Coro
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.
The name Starman is taken from the song (*Star na Otoko*) by the
Japanese rock band Unicorn. It's also a power-up from Super Mario
Brothers and a character from the video game Earthbound.
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 HSSPHIWWWM 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.
Tatsuhiko Miyagawa <>
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.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
Plack Catalyst::Engine::HTTP::Prefork Net::Server::Prefork
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