KSE, libpthread & libthr: almost newbie question

[Greg Lewis]

On Sun, Oct 29, 2006 at 09:24:14PM -0800, Julian Elischer wrote:
> Greg Lewis wrote:
> 
> >If you really want to know, just send the running process a SIGQUIT and
> >it will dump the currently running threads to stdout.  But yes, 1.4 and 1.5
> >both use "native" threads which correspond 1:1 with OS threads (plus
> >there are threads the JVM creates itself, as you note).  The JVM threads
> >include garbage collection and AWT event handlers at least.
> >
> 
> I gather it doesn't use libpthread, but rather just the syscalls?

No, it does use libpthread (or libthr, or libc_r if you so choose).  What
I'm saying is that the JVM maps a single Java thread to a single <pthread
library of your choice> thread.  How that maps to a kernel thread is
then defined by the threading library.

The point is that the JVM doesn't do any internal M:N business itself,
which was the original point under discussion IIRC.

-- 
Greg Lewis                          Email   : glewis at eyesbeyond.com
Eyes Beyond                         Web     : http://www.eyesbeyond.com
Information Technology              FreeBSD : glewis at FreeBSD.org