The VM’s basic assumption that it’s working with JNI in a cooperative manner has got go go away. But to go with the general assumption of distrust an OS adopts with respect to userspace and map that to the Java app/VM boundary is a tall order and requires a different mindset. Tremendous progress has been made in this area of Java VM stability and some process has happened with the system native library code too. ( I should qualify that to say “reliable like Solaris or a good Linux distro, not reliable like Windows or the early dot releases of Mac OS X). IMO we just need for the VM to become as reliable as an operating system as a first step. But it is painful that Sun’s JDS has virtually no Java apps, diluting and confusing the brand.

Now “Java Desktop”, if it really was first used by Sun, has now bled all over and there are many Java desktop systems and some of them are actually implemented in Java. But it’s alphabet soup being slopped around, these things happen. What drove me up the wall was when folks generalized this confusion to decide that the J in AJAX stands for Java. Netscape cooked up Javascript and we all wish to hell they’d picked any other name, like Wescript or whatever. Javascript has no space in its name and it isn’t a Sun thing and has no relation to Java except for four letters of the name. While Java still has some way to go on the desktop, it’s certainly not as bad as you make out. I imagine Azareus’s problem has more to do with Azareus itself than the JVM.įor scientific computing it is high-performance: scientific computing tends to involve doing the same thing over and over again tens of thousands of times, which is the best-case scenario for a JIT. Most apps are up and running in around five seconds though. They have been addressed, and more work is going in, but there are still some areas that could be fixed. In fact, NetBeans memory usage is quite low.Īs for overall memory usage: most of that gets shared across all Java apps these days, and most of it isn’t paged into physical memory, so the actual physical memory usage tends to be fairly low. You can’t run any half-way decent IDE on a computer with 256MB of RAM, and haven’t been able to do so for quite some time. Fact: you can’t even run netbeans 5.0 on 1ghz machine with 256megs of ram.

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