Re: OpenJDK 8 and fastdebug

Remi Forax forax at
Fri Apr 20 00:35:48 PDT 2012

The idea is to bundle jadis with the fast debug VM.


Sent from my Phone

----- Reply message -----
From: "Krystal Mok" <rednaxelafx at>
To: "Rémi Forax" <forax at>
Cc: <jdk8-dev at>
Subject: OpenJDK 8 and fastdebug
Date: Fri, Apr 20, 2012 08:55
PrintAssembly is available in product builds, too. You'll just need to set -XX:+UnlockDiagnosticVMOptions before setting -XX:+PrintAssembly.
On the other hand, -XX:+PrintOptoAssembly is only available in a debug build.

- Kris

On Fri, Apr 20, 2012 at 2:00 PM, Rémi Forax <forax at> wrote:

On 04/20/2012 07:28 AM, Henri Gomez wrote:

Just set


(I don't know what role DEBUG_NAME plays)

Relative question, how can I check a java exec is in fastdebug mode ?

Check "java -version", it will show it is fastdebug.

It seems good (

openjdk version "1.8.0-jdk8-b30-x64-lambda-fastdebug"

OpenJDK Runtime Environment (build 1.8.0-jdk8-b30-x64-lambda-fastdebug-20120420)

OpenJDK 64-Bit Server VM (build 24.0-b04, mixed mode)


Many thanks, Henry,

now people can use -XX:+PrintAssembly :)


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