Jarkko Miettinen jmiettinen
headius
/ gist:3758342
Created
September 20, 2012 21:02
Startup times for base and loading ActiveRecord on JDK7 an JDK8 with various flags
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Java 7 does not currently have tiered compilation on by default, and we do not enable invokedynamic. | |
| Default settings (no indy, no tiered) | |
| system ~/projects/jruby $ (pickjdk 4 ; time jruby -e 1) | |
| New JDK: jdk1.7.0_07.jdk | |
| real 0m1.255s | |
| user 0m1.953s | |
| sys 0m0.084s |
etorreborre
/ gist:1387113
Created
November 22, 2011 21:50
An example of a non-terminating compilation with javac
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| /** from http://www.reddit.com/r/programming/comments/mlbna/scala_feels_like_ejb_2/c31z0co */ | |
| interface Pong<T> {} | |
| class Ping<T> implements Pong<Pong<? super Ping<Ping<T>>>> { | |
| static void Ping() { | |
| Pong<? super Ping<Long>> Ping = new Ping<Long>(); | |
| } | |
| } | |
| > javac Ping.java |