From owner-freebsd-arch@FreeBSD.ORG Sat May 10 11:18:07 2003 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F304237B401; Sat, 10 May 2003 11:18:06 -0700 (PDT) Received: from stork.mail.pas.earthlink.net (stork.mail.pas.earthlink.net [207.217.120.188]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7C9CF43FE1; Sat, 10 May 2003 11:18:06 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from pool0084.cvx40-bradley.dialup.earthlink.net ([216.244.42.84] helo=mindspring.com) by stork.mail.pas.earthlink.net with asmtp (SSLv3:RC4-MD5:128) (Exim 3.33 #1) id 19EYv7-0004FK-00; Sat, 10 May 2003 11:18:06 -0700 Message-ID: <3EBD4214.73CB8B7C@mindspring.com> Date: Sat, 10 May 2003 11:16:52 -0700 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: David Schultz References: <20030510172609.GA29039@HAL9000.homeunix.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-ELNK-Trace: b1a02af9316fbb217a47c185c03b154d40683398e744b8a449a18077e964a8c49bbea987ad575b93a8438e0f32a48e08350badd9bab72f9c350badd9bab72f9c cc: arch@FreeBSD.ORG cc: John Baldwin Subject: Re: [Bikeshed] sigacts locking X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 May 2003 18:18:07 -0000 David Schultz wrote: > It occurs to me that this leaves very little in the uarea. You > have a struct pstats, which is less than 256 bytes, and you have > the kinfo_proc, which shouldn't need to be there anyway. Perhaps > now would also be a good time to get rid of uarea swapping and the > associated complexity altogether. The swapping of the uarea doesn't really introduce a lot of extra complexity, since all it does is allocate swappable pages, just like the swappable pages in user space. Change that mode stuff out of the uarea are probably a bad idea, since it increases KVA pressure by moving them to wired kernel pages. -- Terry