Date: Tue, 02 Nov 1999 09:09:08 -0500 From: "Daniel M. Eischen" <eischen@vigrid.com> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Julian Elischer <julian@whistle.com>, freebsd-arch@freebsd.org Subject: Re: Threads models and FreeBSD. (Next Step) Message-ID: <381EF084.C9292297@vigrid.com> References: <25851.941550642@critter.freebsd.dk>
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Poul-Henning Kamp wrote: > > In message <381EE0D0.874F6198@vigrid.com>, "Daniel M. Eischen" writes: > > >> There is not much point in making a lightweight process facility > >> if the resulting processes are not lightweight. > > > >And quantum is _the_ attribute that makes them lightweight or non > >lightweight? They each share file descriptors, address space, etc. > > Lack of overhead is what makes the lightweight. > > Keeping track of quanta, accounting permissions or anything else > on a "per XXX" basis is "overhead" in this context. I'll make an assumption that a lightweight process is just going to be another proc. A proc already contains scheduling attributes and it seems _extra_ work to make another dereference to get to the parents proc scheduling attributes. Dan Eischen eischen@vigrid.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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