I've just compiled the hotspot (server 64bits) using the hotspot-comp workspace of hotspot express
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
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
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
i.e. you can assign a type to a parameter, a local variable, etc.
If a variable as no type, the compiler consider it as any.
You can assign any value...
on Nov 1, 2009