From owner-freebsd-alpha Wed Sep 4 7:11:46 2002 Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0C43137B400; Wed, 4 Sep 2002 07:11:44 -0700 (PDT) Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by mx1.FreeBSD.org (Postfix) with ESMTP id E47D543E65; Wed, 4 Sep 2002 07:11:31 -0700 (PDT) (envelope-from gallatin@cs.duke.edu) 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 KAA11213; Wed, 4 Sep 2002 10:11:30 -0400 (EDT) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.11.6/8.9.1) id g84EB0v56546; Wed, 4 Sep 2002 10:11:00 -0400 (EDT) (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: <15734.5236.873517.46531@grasshopper.cs.duke.edu> Date: Wed, 4 Sep 2002 10:11:00 -0400 (EDT) To: John Baldwin Cc: peter@FreeBSD.ORG, alpha@FreeBSD.ORG Subject: Re: FYI: Buffer cache fix gave major speedup In-Reply-To: References: <15734.3540.941843.110159@grasshopper.cs.duke.edu> X-Mailer: VM 6.75 under 21.1 (patch 12) "Channel Islands" XEmacs Lucid Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org John Baldwin writes: > > > > > > If this bug exists in 4.x we should really fix it there as well. > > > > > > > Are you talking about btoc()? I think stable is immune. A simple > > test shows the buffer cache is working just fine there. > > Ah, right. Maybe not.. The same simple test on a mid-july -current shows the buffer cache works there too, I assume: <10:07am>monet/gallatin:tmp>du -hs zot 200M zot <10:07am>monet/gallatin:tmp>dd if=zot of=/dev/null bs=64k 3200+0 records in 3200+0 records out 209715200 bytes transferred in 1.871934 secs (112031304 bytes/sec) (and iostat shows no disk activity) I guess I'm confused.. Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message