From owner-freebsd-arm@freebsd.org Sat Jun 30 00:00:15 2018 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 75EEEFD49E8 for ; Sat, 30 Jun 2018 00:00:15 +0000 (UTC) (envelope-from freebsd-arm@sentry.org) Received: from shadow.sentry.org (shadow.sentry.org [210.8.237.106]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "shadow.sentry.org", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 9DBF581DF0 for ; Sat, 30 Jun 2018 00:00:14 +0000 (UTC) (envelope-from freebsd-arm@sentry.org) Received: from shadow.sentry.org (localhost [127.0.0.1]) by shadow.sentry.org (8.15.2/8.15.2) with ESMTP id w5U00AMT024034 for ; Sat, 30 Jun 2018 10:00:10 +1000 (AEST) (envelope-from freebsd-arm@sentry.org) Subject: Re: RPI3 swap experiments To: freebsd-arm@freebsd.org References: <20180627054027.GA22144@www.zefox.net> <20180627194217.GA27793@www.zefox.net> <20180628022457.GA30110@www.zefox.net> <7B9D272D-3EDE-46FA-8A1C-AEE65047167C@yahoo.com> <20180628163328.GA33408@www.zefox.net> <51e208b4-9f14-58f7-1e70-6ef8db2c0bed@sentry.org> <20180629155131.GA35717@www.zefox.net> <20180629233937.GC35717@www.zefox.net> From: Trev Message-ID: <0f137e06-214a-3e8c-a216-f061ec04ac2c@sentry.org> Date: Sat, 30 Jun 2018 10:00:10 +1000 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Firefox/52.0 SeaMonkey/2.49.3 MIME-Version: 1.0 In-Reply-To: <20180629233937.GC35717@www.zefox.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (shadow.sentry.org [0.0.0.0]); Sat, 30 Jun 2018 10:00:10 +1000 (AEST) X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 30 Jun 2018 00:00:15 -0000 bob prohaska wrote on 30/06/2018 09:39: >> (I get a similar warning for the RPi2B which has 2GB of swap, but uses >> 1.4G+ peak during a -j4 buildworld and always completes successfully.) > Are you sure the peak swap use is that high? Last time I ran -j4 buildworld > on my 11-stable Pi2 the swapinfo line with the highest usage was > /dev/da0b 2097152 322264 1774888 15% > or 322 MB. > > The two needn't be the same, but I'd expect them to be closer than that. 1.424G to be precise. System was multi-user. I may have had X running too, not absolutely sure. >> I'll reduce it to 2G and see what happens in 5 hours... > In my notes I don't find an RPi3 test case for 2GB swap, only 1, 2.3 and 3. > I _think_ 2 GB is enough, based on a ~1.4 GB peak, but apparently didn't test it. > Apologies for the misinformation! Not a problem. > I'm very curious to see if it makes a difference. You've already > surprised me once......8-) We'll see :)