From owner-freebsd-current Sun Feb 24 18:56:31 2002 Delivered-To: freebsd-current@freebsd.org Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by hub.freebsd.org (Postfix) with ESMTP id A7C7C37B402; Sun, 24 Feb 2002 18:56:28 -0800 (PST) Received: from grasshopper.cs.duke.edu (grasshopper.cs.duke.edu [152.3.145.30]) by duke.cs.duke.edu (8.9.3/8.9.3) with ESMTP id VAA06300; Sun, 24 Feb 2002 21:56:28 -0500 (EST) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.11.6/8.9.1) id g1P2twG94729; Sun, 24 Feb 2002 21:55:58 -0500 (EST) (envelope-from gallatin@cs.duke.edu) From: Andrew Gallatin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15481.42942.37933.345462@grasshopper.cs.duke.edu> Date: Sun, 24 Feb 2002 21:55:58 -0500 (EST) To: Matthew Dillon Cc: John Baldwin , dfr@nlsystems.com, current@FreeBSD.ORG Subject: Re: Patch for critical_enter()/critical_exit() & interrupt assembly revamp, please review! In-Reply-To: <200202250137.g1P1bXq27219@apollo.backplane.com> References: <20020224131027.I31343-100000@gamplex.bde.org> <200202241912.g1OJCMx95238@apollo.backplane.com> <15481.36444.52026.935742@grasshopper.cs.duke.edu> <200202250137.g1P1bXq27219@apollo.backplane.com> X-Mailer: VM 6.75 under 21.1 (patch 12) "Channel Islands" XEmacs Lucid Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Matt, Thanks for the great explanation! Hopefully, I'll get a chance to try this for alpha (though I won't mind if somebody beats me to it). I've also been meaning to get iprobe (kernel profiler) going again too, to find out why -current on alpha sucks so badly right now. (your gettimeofday() syscall test shows that -current has over 2x the overhead for syscalls on alpha, even w/o INVARIANTS). Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message