Garbage First (G1) garbage collector http://weblogs.java.net/blog/opinali/archive/2009/02/here_comes_jdk.html
Do you think this garbage collector is better for JRun, running ColdFusion 8?
+3
A:
I will tell you that updating the JVM in ColdFusion is a breeze, so I always update to the latest JVM once it's been released for a month. I haven't had any problems with any of the releases thus far and ColdFusion seems to be getting a little quicker with each update.
That said, you should always updated the JVM on a test machine first and run your battery of tests to make sure nothing breaks.
rip747
2009-02-12 12:58:14
But I think G1 GC needs to be activated with a Flag in VM... So that's why I'm asking if any expert in JVM can tell me if this GC is meant good for running CF.
Henry
2009-02-12 18:11:41
what are you afraid of. test it out. if it doesn't work out, just switch back the JVM.
rip747
2009-02-12 20:53:38
+1
A:
G1 is available in Java 6 update 14. It might be a good choice from a technical perspective, but in this release, it has the following odd restriction:
Although G1 is available for use in this release, note that production use of G1 is only permitted where a Java support contract has been purchased. G1 is supported thru Sun's Java Platform Standard Edition for Business program.
InfoQ has speculation about whether this is just a short term limitation or a long term attempt by Sun (now Oracle) to make some money: Is Sun offering the new G1 Garbage Collector Only with a Paid Support Contract?
Matt Passell
2009-06-02 02:22:30
Regarding the speculation... As I understand it G1 is also in OpenJDK so I don't think they intend to keep it to themselves and paying customers.
Fredrik
2009-06-12 15:26:49
They have updated the text on the download page to:G1 is available as early access in this release, please try it and give us feedback. Usage in production settings without a Java SE for Business support contract is not recommended.
Joshua McKinnon
2009-06-30 16:23:26