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Performance

I've just compiled the hotspot (server 64bits) using the hotspot-comp workspace of hotspot express   http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/ Here are the result (average of 8 best run on 10) when running PHP.reboot (my own toy language) on fibonacci function, (-server is the server VM of jdk7, -hsx is server VM of upcoming jdk7 update) Java:java -server bigfibo  ...
on Sep 4, 2011
During the JVM Summit, I was doing some tests for my presentation with the latest jdk7 binaries when I've seen some *BIG* performance improvement between jdk7 b71 and jdk7 b72. A quick look to the summary of changes, hum, Escape Analysis is now enabled by default. On my tests, I got a 3x improvement, Wow ! With a quick micro-benchmark, it's even better, as always :)  ...
on Oct 6, 2009

Programming

Let me introduce a new language named pseudo (Why this name ? Why another language ? Why God ? all these questions will be answered in a later blog). One great feature of this language is that it allows gradual typing, i.e. you can assign a type to a parameter, a local variable, etc. or not. If a variable as no type, the compiler consider it as any. You can assign any value...
on Nov 1, 2009