From owner-freebsd-questions@freebsd.org Mon Feb 5 17:53:56 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 00835EE18BE for ; Mon, 5 Feb 2018 17:53:56 +0000 (UTC) (envelope-from kremels@kreme.com) Received: from mail.covisp.net (www.covisp.net [65.121.55.45]) (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 A2EDF7FE55 for ; Mon, 5 Feb 2018 17:53:54 +0000 (UTC) (envelope-from kremels@kreme.com) From: LuKreme Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Date: Mon, 5 Feb 2018 10:53:47 -0700 Subject: Re: Swap on SSD Message-Id: <24BAEBB4-FAA7-47C8-A6FC-32839063666F@kreme.com> References: <26877DEB-034F-422B-918F-2A0D1C381537@kreme.com> In-Reply-To: To: freebsd-questions@freebsd.org X-Mailer: iPad Mail (15E5167f) 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: Mon, 05 Feb 2018 17:53:56 -0000 On Feb 5, 2018, at 09:13, Frank Leonhardt wrote: > FreeBSD doesn't actually swap these days; uses demand paging. This means t= hat blocks of RAM that are hardly ever used can get copied to disk. This may= include some stuff that's only accessed a few times a year, but would other= wise be occupying precious RAM that would be much more useful as a disk cach= e. That said, FreeBSD tends not to page out except as a last resort - probab= ly a mistake but I can't prove it. Thanks, this is what I didn't know because I know it use to swap a lot, even= if RAM was available (albeit, that may behave been v4...). I think I'll leave it for now, the machine has 8 times as much RAM as the on= e it replaced and is doing less, so I really shouldn't have any issues. The p= revious machine was setup to use a swap file instead of a partition. --=20 This is my signature. There are many like it, but this one is mine.=