From owner-freebsd-questions@FreeBSD.ORG Sun May 26 23:48:20 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 7DC91F6D for ; Sun, 26 May 2013 23:48:20 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-pd0-f169.google.com (mail-pd0-f169.google.com [209.85.192.169]) by mx1.freebsd.org (Postfix) with ESMTP id 5CC732E4 for ; Sun, 26 May 2013 23:48:20 +0000 (UTC) Received: by mail-pd0-f169.google.com with SMTP id y11so5992075pdj.0 for ; Sun, 26 May 2013 16:48:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=GdKuwO5rqA959dDAxBQlShzDesAfjrIA0fXg/GgGShM=; b=D0+xY9anE8N4gWBWKvXmPaBkIMYOQwlb4rdvfNSy1RpowUAgelIsg/Y2FG9iIK4c3r GEWxfFR8o6TPlX6PkM6PbhSWU09IklVI1z82p4lIqEX/z1Et3SRaXwG5LV7L3uCdYbw7 Z7b7UZwkR5umFfcaM9U1ccVPLeUhoMZvhZacACUhX+1KFp3ZjN1UfKkucpewslEMNywx nsbnDNf37dDbVcIAsB4FBCvT6D9Yez6ObUp/Orcv0xMfu1jOGnXjpCGa+9NNxImaWTqb ohldsXOY2XmMH8L81Om3QH5EJG/cuB8MEaWa97R5rrU1sgrj38fjoTmzalkTKi9WeoEf QIVQ== MIME-Version: 1.0 X-Received: by 10.66.102.3 with SMTP id fk3mr27262199pab.192.1369612098823; Sun, 26 May 2013 16:48:18 -0700 (PDT) Received: by 10.70.31.195 with HTTP; Sun, 26 May 2013 16:48:18 -0700 (PDT) In-Reply-To: References: <1369558712.96152.YahooMailNeo@web165006.mail.bf1.yahoo.com> <20130526160906.4e379016@X220.ovitrap.com> <20130526113235.f5dbe768.freebsd@edvax.de> Date: Sun, 26 May 2013 18:48:18 -0500 Message-ID: Subject: Re: "swap" partition leads to instability? From: Adam Vande More To: Warren Block Content-Type: text/plain; charset=ISO-8859-1 Cc: Erich Dollansky , Polytropon , "freebsd-questions@freebsd.org" , "M. V." X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 May 2013 23:48:20 -0000 On Sun, May 26, 2013 at 6:32 PM, Warren Block wrote: > Another problem with SSDs is that they can have difficulty with wear > leveling. This is even worse with swap because there is no way to use TRIM > to tell the SSD about blocks that have been freed. Um, that is wrong. It is in fact the basically the point of TRIM. And SSD's typically use the best form of wear leveling and it's usually advisable to leave a bit of the drive unpartitioned/unused to ensure the wear leveling works optimally. -- Adam Vande More