From owner-freebsd-questions@FreeBSD.ORG Wed May 29 18:38:48 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 4AA2F2B9 for ; Wed, 29 May 2013 18:38:48 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-pb0-x22d.google.com (mail-pb0-x22d.google.com [IPv6:2607:f8b0:400e:c01::22d]) by mx1.freebsd.org (Postfix) with ESMTP id 2546FF91 for ; Wed, 29 May 2013 18:38:48 +0000 (UTC) Received: by mail-pb0-f45.google.com with SMTP id mc17so9539891pbc.18 for ; Wed, 29 May 2013 11:38:48 -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=NItkomLYB8oDDZctx7eRRhdXEveLoWf1WPnXIJkjG1U=; b=B7hw55AIdEFmEB8M4LzZmNOi8yrR5p8npuSNjF5/FCHznb5/cfftIy3OX2JyBkquNM pKd2xJQJm0ITJjr9o8HDNLWfhfcSWU9wn/Cd9LhU1bib8XZl3ZYYJHlMv4c3hpcAo20N tUTSAN9Vp6ndp1tcHvMjuFonZsK4GSXt2codYS02Ap0ZMjWtSPtIoSyMHw3PqcOCnDtv 8SLwNHZXE2d4i3t3IKLCLFDo2FSg6VthdZLBy8f8N5aVDfBTdEG79JRI31nRe6inV084 yn98BfqAbwOeIk5gJire1cHS1rmpmUrUPF0qYao9VoJLEo+PhE963GfFUXTuqu+JdF6K A4Gg== MIME-Version: 1.0 X-Received: by 10.66.102.3 with SMTP id fk3mr4634451pab.192.1369852727918; Wed, 29 May 2013 11:38:47 -0700 (PDT) Received: by 10.70.31.195 with HTTP; Wed, 29 May 2013 11:38:47 -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: Wed, 29 May 2013 13:38:47 -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 X-Mailman-Approved-At: Wed, 29 May 2013 19:15:31 +0000 Cc: Polytropon , Erich Dollansky , Michael Sierchio , "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: Wed, 29 May 2013 18:38:48 -0000 PS -- Moderating questions@ is just awful. I'm disappointed. On Wed, May 29, 2013 at 1:34 PM, Adam Vande More wrote: > On Wed, May 29, 2013 at 1:05 PM, Warren Block wrote: >> And you don't think the presence of TRIM--where the SSD can actually know >> which blocks are no longer in use--is worthwhile? > > As a whole, TRIM is worthwhile. However when an SSD is > overprovisioned it provides a lot of benefits. TRIM-less swap in this > case doesn't. The PE rate of the worst MLC SSD's at this point is > @3000 AFAIK. Given those figures and average desktop swap rate at my > estimation, prioritizing write endurance on an SSD is not > beneficial(especially with a SanForce). If you are swapping > continuously something like ZeusRAM may be required. There are > probably other solutions available as well as other 3rd party ones. > If you are swapping a lot, the best case is usually to add RAM. > > -- > Adam Vande More -- Adam Vande More