TowerJ is an exception.  I guess they are implementing their own green threads
model?  I'd be interested to find out more about that.

IBM and Sun are the leading JVM vendors out there, especially when you include
the VM implementations of all others who have licensed the Sun source code and
produced production implementations for their platforms, e.g., HP, Compaq, SGI,
etc.  Anyone shipping a Sun-based production JVM (including IBM) is using a
native threads model by default, except Sun themselves in the case of Linux
(which is supposed to change in 1.3 or 1.4).

Scott Stirling

----- Original Message -----
From: Osvaldo Pinali Doederlein <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, April 23, 2000 9:21 AM
Subject: Re: Thread and JVM


> From: "Scott Stirling" <[EMAIL PROTECTED]>
> > This is an operating system question.  Every operating system I know of
> has a
> > default limitation on how many threads a single process can run.  On
> Windows NT
> > I believe (correct me if I'm wrong) the limit is 2048.  On some UNIXes
> it's
> > 1024.  On Solaris 8 I want to say it's theoretically unlimited.
> Regardless,
> > it's a limit set by the operating system, it's usually tuneable, and the
> JVM has
> > nothing to do with it.
> > Scott Stirling
>
> Well, not all Java implementations map Java threads to OS threads.  AFAIK
> the JRockIt VM does a N-to-N mapping btw Java/OS threads, and Tower's static
> compiler implements their own threading instead of using the OS's.  So, if
> you're using anything other than the vanilla, "standard" Sun JDK, the
> question should be routed to the vendor.
>
> > ----- Original Message -----
> > From: Laura Duong <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Saturday, April 22, 2000 4:36 PM
> > Subject: Thread and JVM
> >
> >
> > > Hi ...
> > >
> > > It ' s a great place to learn here...
> > >
> > > Question: "How many thread can a VM handle ? max ?  and  why?
> > >
> > > Please help -
> > > Thanks,
> > >
> > > Laura Duong

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