From owner-freebsd-questions@freebsd.org Wed Feb 7 15:01:18 2018 Return-Path: Delivered-To: freebsd-questions@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 5C06FF0C34B for ; Wed, 7 Feb 2018 15:01:18 +0000 (UTC) (envelope-from frank2@fjl.co.uk) Received: from bs1.fjl.org.uk (bs1.fjl.org.uk [84.45.41.196]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "bs1.fjl.org.uk", Issuer "bs1.fjl.org.uk" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id E2E426D08E for ; Wed, 7 Feb 2018 15:01:17 +0000 (UTC) (envelope-from frank2@fjl.co.uk) Received: from roundcube.fjl.org.uk (localhost [127.0.0.1]) by bs1.fjl.org.uk (8.14.4/8.14.4) with ESMTP id w17F18Vs008222; Wed, 7 Feb 2018 15:01:08 GMT (envelope-from frank2@fjl.co.uk) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Date: Wed, 07 Feb 2018 15:01:07 +0000 From: Frank Leonhardt To: Robert Huff Cc: freebsd-questions@freebsd.org Subject: Re: Swap on SSD Organization: FJL Microsystems In-Reply-To: <23160.43027.295357.808217@jerusalem.litteratus.org> References: <26877DEB-034F-422B-918F-2A0D1C381537@kreme.com> <23160.43027.295357.808217@jerusalem.litteratus.org> Message-ID: X-Sender: frank2@fjl.co.uk User-Agent: Roundcube Webmail/0.9.2 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Feb 2018 15:01:18 -0000 On 2018-02-05 18:53, Robert Huff wrote: > Frank Leonhardt writes: > >> FreeBSD doesn't actually swap these days; uses demand paging. > > Possible evidence to the contrary: > On a system running: > > FreeBSD 12.0-CURRENT #0 r326723: Sat Dec 9 12:30:04 EST 2017 amd64 > > top shows: > > last pid: 57956; load averages: 2.02, 2.01, 1.95 up 57+19:09:04 > 13:49:29 > 132 processes: 3 running, 129 sleeping > CPU: 38.7% user, 0.4% nice, 7.9% system, 0.0% interrupt, 53.0% idle > Mem: 2264M Active, 2303M Inact, 1478M Laundry, 1525M Wired, 761M Buf, > 115M Free > Swap: 17G Total, 996M Used, 16G Free, 5% Inuse > > So ... is "Swap" an incorrect label, or is actual swapping > going on? Yes, it's an incorrect label.