Lazily load code and 3rd party libraries to improve startup time
----------------------------------------------------------------
Key: BUILDR-155
URL: https://issues.apache.org/jira/browse/BUILDR-155
Project: Buildr
Issue Type: Improvement
Reporter: Assaf Arkin
Fix For: 1.3.4
Startup time is most noticeable on JRuby, but speedup could also help for Ruby.
We can improve startup time by reducing the amount of code and 3rd party
libraries we require by default, some of which are seldom used (e.g. SFTP is
used during deployment, a not-so-common task).
This issue is an attempt at "cheap" ways to improve startup time going into the
next release. Cheap: easy to implement, easy to explain, don't render the code
hard to maintain. Since we'll carry anything we learn here into future
releases, we can close this issue on the first release that employs these
principles.
The goal is to have a noticeable (> 1 sec) and significant (> 20%) improvement
in startup time. The first cut measures close to 1 sec/9% improvement (OS X
10.5.5, JRuby 1.1.3, Java 1.5.0, Core Duo 1.8Ghz):
(trunk) $ time jruby -S _buildr -f empty
real 0m7.625s
user 0m6.730s
sys 0m0.627s
(improved) $ time jruby -S _buildr -f empty
real 0m6.737s
user 0m5.940s
sys 0m0.546s
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
