From owner-freebsd-hackers@freebsd.org Mon Nov 19 10:25:11 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 066CE113B677 for ; Mon, 19 Nov 2018 10:25:11 +0000 (UTC) (envelope-from wojtek@puchar.net) Received: from puchar.net (puchar.net [194.1.144.90]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "puchar.net", Issuer "puchar.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 690426F63A; Mon, 19 Nov 2018 10:25:10 +0000 (UTC) (envelope-from wojtek@puchar.net) Received: Received: from 127.0.0.1 (localhost [127.0.0.1]) by puchar.net (8.15.2/8.15.2) with ESMTPS id wAJAP06Z054115 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 19 Nov 2018 11:25:00 +0100 (CET) (envelope-from puchar-wojtek@puchar.net) Received: from localhost (puchar-wojtek@localhost) by puchar.net (8.15.2/8.15.2/Submit) with ESMTP id wAJAOtYr054112; Mon, 19 Nov 2018 11:24:55 +0100 (CET) (envelope-from puchar-wojtek@puchar.net) Date: Mon, 19 Nov 2018 11:24:55 +0100 (CET) From: Wojciech Puchar To: Cy Schubert cc: Stefan Blachmann , Mark Millard , Rebecca Cran , freebsd-hackers Hackers , Mark Johnston , Ian Lepore , Wojciech Puchar Subject: Re: 13-CURRENT: several GB swap being used despite plenty of free RAM In-Reply-To: <201811182205.wAIM543W036241@slippy.cwsent.com> Message-ID: References: <201811182205.wAIM543W036241@slippy.cwsent.com> User-Agent: Alpine 2.20 (BSF 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed X-Rspamd-Queue-Id: 690426F63A X-Spamd-Result: default: False [-0.84 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.03)[-0.026,0]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[puchar.net]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; MX_GOOD(-0.01)[cached: puchar.net]; NEURAL_HAM_SHORT(-0.50)[-0.505,0]; RCPT_COUNT_SEVEN(0.00)[8]; RCVD_IN_DNSWL_NONE(0.00)[90.144.1.194.list.dnswl.org : 127.0.10.0]; IP_SCORE(0.00)[country: PL(0.02)]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:43476, ipnet:194.1.144.0/24, country:PL]; FREEMAIL_CC(0.00)[gmail.com]; MID_RHS_MATCH_FROM(0.00)[] 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 10:25:11 -0000 > can go a long way. Having said that, it's been a while since I've had > to do this. The updates made to ZFS ARC and NUMA have allowed me to > rely on the algorithms baked into FreeBSD. My 8 GB systems have > performed rather well. 8GB is LOT LOT LOT of memory.