From owner-cvs-all Sat Mar 7 21:36:39 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA03435 for cvs-all-outgoing; Sat, 7 Mar 1998 21:36:39 -0800 (PST) (envelope-from owner-cvs-all@FreeBSD.ORG) Received: from ns.mt.sri.com (sri-gw.MT.net [206.127.105.141]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id VAA03429 for ; Sat, 7 Mar 1998 21:36:35 -0800 (PST) (envelope-from nate@mt.sri.com) Received: from mt.sri.com (rocky.mt.sri.com [206.127.76.100]) by ns.mt.sri.com (8.8.8/8.8.8) with SMTP id WAA16991; Sat, 7 Mar 1998 22:36:34 -0700 (MST) (envelope-from nate@rocky.mt.sri.com) Received: by mt.sri.com (SMI-8.6/SMI-SVR4) id WAA06540; Sat, 7 Mar 1998 22:36:31 -0700 Date: Sat, 7 Mar 1998 22:36:31 -0700 Message-Id: <199803080536.WAA06540@mt.sri.com> From: Nate Williams MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: John Birrell Cc: nate@mt.sri.com (Nate Williams), cvs-committers@FreeBSD.ORG Subject: Re: cvs commit: src/lib/libc_r/uthread pthread_private.h uthread_yield.c In-Reply-To: <199803080529.QAA10869@cimlogic.com.au> References: <199803080523.WAA06336@mt.sri.com> <199803080529.QAA10869@cimlogic.com.au> X-Mailer: VM 6.29 under 19.15 XEmacs Lucid Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk > > > that it will all just come out in the wash. Kernel threads aren't > > > light weight, though. > > > > If kernel threads aren't light-weight, then what differentiates them > > from processes? > > Shared address space. You can do that easily enough know with mmap'd files, and or SYSV shmem. It would seem to me that heavy-weight threads don't buy you anything that you can't already do know. Heck, someone could write up a library that does that already, making the details hidden like the user-land pthreads library. It seems to me we're checking off a box on someone's list of features w/out any regard to the usefulness of that feature. :( Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message