Re: [JOS-Kernel] Construction of a new Java Operating System

[Ryan Heise]

Cliff Baeseman wrote:

> JOS is also based on a single instance JVM design. This is a very poor
> design in my opinion.

It allows you to share 15 megs of system classes between applications.
It allows you to have one thread scheduler across all applications. It
allows you to have one garbage collecter and memory manager across all
applications. There are a few other optimizations that are possible.

> One exception and the whole os is going to go down.

One exception and the current thread goes down. Sure, if the JVM
crashes, then the whole operating system effectively goes down, but that
is just like saying if the Linux kernel crashes, the whole operating
system goes down.

-- 
Ryan Heise

http://www.progsoc.uts.edu.au/~rheise/

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