From owner-freebsd-arch Tue Feb 5 19: 4:19 2002 Delivered-To: freebsd-arch@freebsd.org Received: from falcon.prod.itd.earthlink.net (falcon.mail.pas.earthlink.net [207.217.120.74]) by hub.freebsd.org (Postfix) with ESMTP id 8444037B42A; Tue, 5 Feb 2002 19:04:15 -0800 (PST) Received: from pool0362.cvx40-bradley.dialup.earthlink.net ([216.244.43.107] helo=mindspring.com) by falcon.prod.itd.earthlink.net with esmtp (Exim 3.33 #1) id 16YINX-0001wv-00; Tue, 05 Feb 2002 19:04:11 -0800 Message-ID: <3C609D1C.B0AD70F2@mindspring.com> Date: Tue, 05 Feb 2002 19:03:56 -0800 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Daniel Eischen Cc: Julian Elischer , Matthew Dillon , Dan Eischen , bde@FreeBSD.ORG, peter@FreeBSD.ORG, arch@FreeBSD.ORG Subject: Re: getsetcontext system call References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Daniel Eischen wrote: > > > > I thought we were trying to avoid having to make any system calls on > > > > a userland thread context switch. > > > > > > In the threads library, we'll use our own library routines to > > > do this (hopefully) without having to make a system call. > > > > Or maybe use kernel entries that are already hapenning anyway..... > > Huh? "Batch async call gates". In other words, if you are calling anyway, push more than one call across the user/kernel boundary at a time. The answer to his suggestion is "it won't work, because that's not how system calls work today". -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message