From owner-freebsd-arm@freebsd.org Sat Jun 30 23:42:26 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 9E693FDF17E for ; Sat, 30 Jun 2018 23:42:26 +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 D201290DD6 for ; Sat, 30 Jun 2018 23:42:25 +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 w5UNgFlp061939 for ; Sun, 1 Jul 2018 09:42:15 +1000 (AEST) (envelope-from freebsd-arm@sentry.org) Subject: Re: RPI3 swap experiments To: freebsd-arm@freebsd.org References: <20180626222834.GA20270@www.zefox.net> <28012DFB-37A0-461A-BB62-CD3EE61E82F0@yahoo.com> <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> From: Trev Message-ID: Date: Sun, 1 Jul 2018 09:42:15 +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: <20180629155131.GA35717@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]); Sun, 01 Jul 2018 09:42:15 +1000 (AEST) X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.27 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 23:42:26 -0000 bob prohaska wrote on 30/06/2018 01:51: > On Fri, Jun 29, 2018 at 10:28:25PM +1000, Trev wrote: >> >> Jun 29 20:20:35 rpi3 kernel: pid 66844 (c++), uid 0, was killed: out of >> swap space >> >> At the time of "out of swap" only 157M of the 4G swap was in use. The >> 4GB swap partition is on a 4GB USB2 memory key (da1p1), everything else >> is on the sdcard. There are no excessively long ms/w being recorded. >> There are no USB or other related errors. >> > > That's a little surprising, and disturbing. By my experience your setup > should have run to completion. > > Do you see a "too much swap" complaint? I don't know if it's a problem, > but 4 GB of swap triggers one on my RPi3. 3 GB does not. 2 GB is enough > to finish -j4 buildworld. Jun 30 23:32:12 rpi3 kernel: pid 60735 (c++), uid 0, was killed: out of swap space No go with 2GB (I deleted the da0p1 swap partition; destroyed da0; then remade it it with a 2GB p1; then rebooted - no "too much swap" complaints). Out of swap with 56M of 2GB used. And this was with make -j2 buildworld. Here's the top and gstat stats leading up to, at the time of out of swap and just after: last pid: 61290; load averages: 2.42, 2.27, 2.19 up 0+12:23:41 23:32:07 33 processes: 2 running, 31 sleeping Mem: 609M Active, 296K Inact, 95M Laundry, 176M Wired, 97M Buf, 20M Free Swap: 2048M Total, 47M Used, 2001M Free, 2% Inuse 0 0 0 0 0.0 0 0 0.0 0.0 mmcsd0s2a 4 68 0 0 0.0 68 1487 20.9 36.7 da0p1 last pid: 61294; load averages: 2.42, 2.27, 2.19 up 0+12:23:42 23:32:08 33 processes: 2 running, 31 sleeping Mem: 612M Active, 180K Inact, 94M Laundry, 176M Wired, 97M Buf, 19M Free Swap: 2048M Total, 49M Used, 1999M Free, 2% Inuse 0 0 0 0 0.0 0 0 0.0 0.0 mmcsd0s2a 4 110 0 0 0.0 110 3653 24.3 77.8 da0p1 last pid: 61298; load averages: 2.42, 2.27, 2.19 up 0+12:23:43 23:32:09 33 processes: 2 running, 31 sleeping Mem: 614M Active, 248K Inact, 90M Laundry, 176M Wired, 97M Buf, 20M Free Swap: 2048M Total, 53M Used, 1995M Free, 2% Inuse 0 0 0 0 0.0 0 0 0.0 0.0 mmcsd0s2a 0 28 0 0 0.0 28 2737 157.7 113.7 da0p1 last pid: 61302; load averages: 2.42, 2.27, 2.19 up 0+12:23:45 23:32:11 33 processes: 2 running, 31 sleeping Mem: 322M Active, 297M Inact, 88M Laundry, 176M Wired, 97M Buf, 17M Free Swap: 2048M Total, 55M Used, 1993M Free, 2% Inuse 0 0 0 0 0.0 0 0 0.0 0.0 mmcsd0s2a 5 0 0 0 0.0 0 0 0.0 0.0 da0p1 last pid: 61306; load averages: 2.42, 2.27, 2.19 up 0+12:23:46 23:32:12 33 processes: 1 running, 32 sleeping Mem: 326M Active, 164K Inact, 379M Laundry, 176M Wired, 97M Buf, 19M Free Swap: 2048M Total, 56M Used, 1992M Free, 2% Inuse 0 0 0 0 0.0 0 0 0.0 0.0 mmcsd0s2a 6 0 0 0 0.0 0 0 0.0 0.0 da0p1 last pid: 61310; load averages: 2.39, 2.27, 2.19 up 0+12:23:47 23:32:13 33 processes: 1 running, 32 sleeping Mem: 331M Active, 184K Inact, 379M Laundry, 176M Wired, 97M Buf, 14M Free Swap: 2048M Total, 56M Used, 1992M Free, 2% Inuse 0 0 0 0 0.0 0 0 0.0 0.0 mmcsd0s2a 6 0 0 0 0.0 0 0 0.0 0.0 da0p1 [OUT OF SWAP at 23:32:14 captured immediately below] last pid: 61315; load averages: 2.39, 2.27, 2.19 up 0+12:23:48 23:32:14 33 processes: 1 running, 32 sleeping Mem: 78M Active, 176K Inact, 315M Laundry, 174M Wired, 97M Buf, 332M Free Swap: 2048M Total, 56M Used, 1992M Free, 2% Inuse 0 0 0 0 0.0 0 0 0.0 0.0 mmcsd0s2a 0 48 37 710 126.2 11 1186 341.9 26.4 da0p1 last pid: 61320; load averages: 2.39, 2.27, 2.19 up 0+12:23:49 23:32:15 33 processes: 2 running, 31 sleeping Mem: 55M Active, 848K Inact, 1644K Laundry, 174M Wired, 97M Buf, 669M Free Swap: 2048M Total, 48M Used, 2000M Free, 2% Inuse 0 0 0 0 0.0 0 0 0.0 0.0 mmcsd0s2a 0 0 0 0 0.0 0 0 0.0 0.0 da0p1