From owner-freebsd-hackers@freebsd.org Mon Nov 19 04:44:11 2018 Return-Path: Delivered-To: freebsd-hackers@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 4FA451133C54 for ; Mon, 19 Nov 2018 04:44:11 +0000 (UTC) (envelope-from rebecca@bluestop.org) Received: from muon.bluestop.org (muon.bluestop.org [96.73.9.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 55E7381129; Mon, 19 Nov 2018 04:44:10 +0000 (UTC) (envelope-from rebecca@bluestop.org) Received: from muon.bluestop.org (localhost [127.0.0.1]) by muon.bluestop.org (Postfix) with ESMTP id 45999D32FB; Sun, 18 Nov 2018 21:44:47 -0700 (MST) Received: from muon.bluestop.org ([127.0.0.1]) by muon.bluestop.org (muon.bluestop.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hJ2pjCJWyXUT; Sun, 18 Nov 2018 21:44:47 -0700 (MST) Received: from photon.int.bluestop.org (gw.bluestop.org [96.73.9.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by muon.bluestop.org (Postfix) with ESMTPSA; Sun, 18 Nov 2018 21:44:47 -0700 (MST) From: Rebecca Cran To: freebsd-hackers@freebsd.org, Cy Schubert Cc: Stefan Blachmann , Ian Lepore , Wojciech Puchar , Mark Johnston Subject: Re: 13-CURRENT: several GB swap being used despite plenty of free RAM Date: Sun, 18 Nov 2018 21:44:02 -0700 Message-ID: <3912010.ex36aFohjY@photon.int.bluestop.org> In-Reply-To: <201811182205.wAIM543W036241@slippy.cwsent.com> References: <201811182205.wAIM543W036241@slippy.cwsent.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Rspamd-Queue-Id: 55E7381129 X-Spamd-Result: default: False [-5.71 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[bluestop.org]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[text/plain]; IP_SCORE(-3.21)[ip: (-9.81), ipnet: 96.64.0.0/11(-4.89), asn: 7922(-1.25), country: US(-0.09)]; RCPT_COUNT_FIVE(0.00)[6]; RCVD_COUNT_THREE(0.00)[4]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[bluestop.org:+]; DMARC_POLICY_ALLOW(-0.50)[bluestop.org,quarantine]; MX_GOOD(-0.01)[mail.bluestop.org]; NEURAL_HAM_SHORT(-0.99)[-0.993,0]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; CTE_CASE(0.50)[]; ASN(0.00)[asn:7922, ipnet:96.64.0.0/11, country:US]; FREEMAIL_CC(0.00)[gmail.com] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Nov 2018 04:44:11 -0000 On Sunday, 18 November 2018 15:05:04 MST Cy Schubert wrote: > Unfortunately like many operating systems these days, FreeBSD's tuning > parameters are generally baked in. And, fencing (an IBM term to limit > address space memory use or to establish a minimum) isn't available. > So, tuning for a site specific workload is more difficult. Talking of tuning, this seems like a good resource for tuning for desktop use: https://cooltrainer.org/a-freebsd-desktop-howto/ . -- Rebecca