Date: Tue, 28 Nov 2000 16:34:39 -0800 (PST) From: FengYue <fengyue@bluerose.windmoon.nu> To: Alfred Perlstein <bright@wintelcom.net> Cc: David Petrou <dpetrou@cs.cmu.edu>, freebsd-hackers@FreeBSD.ORG Subject: Re: thread model questions Message-ID: <Pine.BSF.4.21.0011281621550.55559-100000@shell.unixbox.com> In-Reply-To: <20001127163948.S8051@fw.wintelcom.net>
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On Mon, 27 Nov 2000, Alfred Perlstein wrote: ->> I thought it's preemptive purely at user-level since the threads are ->> scheduled by thread lib at user-level only. No? -> ->What are you asking? Give a scenario and I'll explain what should ->happen. -> Hmm, actually I don't know in which case it'd be considered as "preemptive at kernel level"... In the case where a thread calls a syscall and gets blocked, the entire process gets blocked not just that thread. In the case where the syscalls are converted to asynchronous calls, would this be the case? Thanks ->-- ->-Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org] ->"I have the heart of a child; I keep it in a jar on my desk." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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