From owner-freebsd-hackers@freebsd.org Sat Nov 17 22:21:36 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 A54841108322 for ; Sat, 17 Nov 2018 22:21:36 +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 1719D8323E for ; Sat, 17 Nov 2018 22:21:35 +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 BAD08D220B for ; Sat, 17 Nov 2018 15:22:18 -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 M68rjK8dRLnu for ; Sat, 17 Nov 2018 15:22:18 -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 for ; Sat, 17 Nov 2018 15:22:18 -0700 (MST) From: Rebecca Cran To: freebsd-hackers@freebsd.org Subject: Re: 13-CURRENT: several GB swap being used despite plenty of free RAM Date: Sat, 17 Nov 2018 15:21:33 -0700 Message-ID: <2030527.5gTYqTD1LS@photon.int.bluestop.org> In-Reply-To: <1748688.u6MfGjpqfb@photon.int.bluestop.org> References: <1748688.u6MfGjpqfb@photon.int.bluestop.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Rspamd-Queue-Id: 1719D8323E X-Spamd-Result: default: False [-4.68 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[bluestop.org]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[bluestop.org:+]; DMARC_POLICY_ALLOW(-0.50)[bluestop.org,quarantine]; MX_GOOD(-0.01)[cached: mail.bluestop.org]; NEURAL_HAM_SHORT(-0.98)[-0.975,0]; 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]; IP_SCORE(-3.19)[ip: (-9.81), ipnet: 96.64.0.0/11(-4.89), asn: 7922(-1.17), country: US(-0.10)] 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: Sat, 17 Nov 2018 22:21:36 -0000 On Saturday, 17 November 2018 14:44:41 MST Rebecca Cran via freebsd-hackers wrote: > Quitting firefox caused the swap usage to drop to just 460MB. I don't > understand why it would decide to swap out so much, especially since I have > vm.swap_idle_enabled set to 0. Of course it was because just before looking at top, I'd been running something that used up all the memory. I'd run "grep -rHn" and it had wanted to use over 120GB memory, which caused all the swapouts. -- Rebecca