Date: Wed, 9 Oct 2002 22:52:48 +0400 (MSD) From: Igor Sysoev <is@rambler-co.ru> To: Julian Elischer <julian@elischer.org> Cc: arch@FreeBSD.ORG Subject: Re: Scheduler framework. Message-ID: <Pine.BSF.4.21.0210092252010.2501-100000@is> In-Reply-To: <Pine.BSF.4.21.0210091001270.37238-100000@InterJet.elischer.org>
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On Wed, 9 Oct 2002, Julian Elischer wrote: > > > If a thread mailbox IS provided: > > > the syscall is entered. > > > the thread blocks. A second thread is invoked and attached > > > to the KSE, which is disconnected from the original thread. > > > > Sorry, where did this second thread come from ? > > there is a thread_allocator that allocates threads on demand. > > Actually the process ahs a couple of spare threads "Up its sleave" > so it doesn't have to go to teh thread allocator every time.. As I understand this second thread has user-level context and its context pointed by tm_context.uc_link of blocked thread mailbox. Am I right ? If it's so then can several threads use the same second thread context ? Igor Sysoev http://sysoev.ru To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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