[no subject]

On Sat, 2004-03-27 at 20:07, Bjorn Dittmer-Roche wrote:
> On Sat, 27 Mar 2004, David Corbin wrote:
> 
> >
> > > Keep in mind that default RH and Debian kernels treat threads differently.
> > > Debain uses the old threading model which gives each thread it's own entry
> > > in the process table. RH uses NPTL, wich does not give each thread it's
> > > own entry and, thus, requires less overhead, so what you are seeing is
> > > probably a reflection of the Kernels' threading models _not_ a diffetence
> > > in ps. If you want the new behaviour on Debian, I recomend upgrading your
> > > kernel to a 2.6 series which will also improve your performance.
> >
> > Not too sure I'm ready to jump on the 2.6 bandwagon.  Is NPTL in 2.4,
> 
> By default, NPTL is not in 2.4, but redhat has backported it. It may be in
> some of the very latest 2.4's though, I'm not sure.
> 
> > and how how does it stack up against "the old threading model"?
> 
> The new threading model is much higher performance. I am told you will
> notice the difference in any heavilly threaded application. Java is a good
> example.
> 
> 	bjorn


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