From owner-freebsd-current Tue Aug 25 14:19:04 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id OAA07520 for freebsd-current-outgoing; Tue, 25 Aug 1998 14:19:04 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from cimlogic.com.au (cimlog.lnk.telstra.net [139.130.51.31]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id OAA07512 for ; Tue, 25 Aug 1998 14:19:00 -0700 (PDT) (envelope-from jb@cimlogic.com.au) Received: (from jb@localhost) by cimlogic.com.au (8.8.8/8.8.7) id HAA00759; Wed, 26 Aug 1998 07:28:59 +1000 (EST) (envelope-from jb) From: John Birrell Message-Id: <199808252128.HAA00759@cimlogic.com.au> Subject: Re: Threads across processors In-Reply-To: <199808251410.KAA01928@khavrinen.lcs.mit.edu> from Garrett Wollman at "Aug 25, 98 10:10:12 am" To: wollman@khavrinen.lcs.mit.edu (Garrett Wollman) Date: Wed, 26 Aug 1998 07:28:59 +1000 (EST) Cc: current@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL40 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Garrett Wollman wrote: > I've watched Cyclone hit 150,000 syscalls a SECOND when it's not doing > much of anything. It's impressive that it can do that, but I'd like > to have some CPU left over for useful work... Most of those system > calls were to sigprocmask() to protect some critical section from the > signals that drive the thred scheduler. This comment applies to 2.2.X only, not to 3.0. -- John Birrell - jb@cimlogic.com.au; jb@freebsd.org http://www.cimlogic.com.au/ CIMlogic Pty Ltd, GPO Box 117A, Melbourne Vic 3001, Australia +61 418 353 137 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message