From owner-freebsd-arch  Tue May  1  9:39:44 2001
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From: Nate Williams <nate@yogotech.com>
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Message-ID: <15086.59054.668961.132528@nomad.yogotech.com>
Date: Tue, 1 May 2001 10:39:10 -0600 (MDT)
To: Daniel Eischen <eischen@vigrid.com>
Cc: Nate Williams <nate@yogotech.com>,
	Julian Elischer <julian@elischer.org>,
	Cedric Berger <cedric@wireless-networks.com>, Arch@FreeBSD.ORG
Subject: Re: KSE threading support (first parts)
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> > > > Sorry is I ask a stupid question, but I'm trying to make sense of this thread.
> > > > Here is my question:
> > > >  - I've a server that runs a single big java application server (one process,
> > > >    tons of threads like every Java app)
> > > >  - With the new KSE and friends architecture, will I be able to scale
> > > >    my app by adding CPUs?
> > > 
> > > Using the linuxthreads port you can do that today
> > > using Pthreads today you can not.
> > > using the KSE scheme you can
> > 
> > Only if the JVM is compiled using the above technologies.  Linuxthreads
> > won't be used because the license is incompatible with the JDK license.
> 
> And when we do get KSEs, what's the optimal way to map Java threads
> to KSEGs/KSEs?  Should each Java thread be a PTHREAD_SCOPE_SYSTEM
> thread where each thread gets its own KSEG/KSE pair, or would it
> be better to run all threads as PTHREAD_SCOPE_PROCESS in one KSE/KSEG
> pair?

I believe the latter, but tests would show us which works better for a
mix.


Nate

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