From owner-freebsd-arm@freebsd.org Fri Jun 15 03:52:14 2018 Return-Path: Delivered-To: freebsd-arm@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 4F13C1011037 for ; Fri, 15 Jun 2018 03:52:14 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (www.zefox.net [50.1.20.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "www.zefox.org", Issuer "www.zefox.org" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id C2D53754D7 for ; Fri, 15 Jun 2018 03:52:13 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (localhost [127.0.0.1]) by www.zefox.net (8.15.2/8.15.2) with ESMTPS id w5F3qQms037543 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 14 Jun 2018 20:52:27 -0700 (PDT) (envelope-from fbsd@www.zefox.net) Received: (from fbsd@localhost) by www.zefox.net (8.15.2/8.15.2/Submit) id w5F3qQAF037542; Thu, 14 Jun 2018 20:52:26 -0700 (PDT) (envelope-from fbsd) Date: Thu, 14 Jun 2018 20:52:26 -0700 From: bob prohaska To: "Rodney W. Grimes" Cc: Tom Vijlbrief , "freebsd-arm@freebsd.org" , bob prohaska Subject: Re: GPT vs MBR for swap devices Message-ID: <20180615035225.GA37370@www.zefox.net> References: <20180614175622.GC35161@www.zefox.net> <201806142110.w5ELAL0N046840@pdx.rh.CN85.dnsmgr.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201806142110.w5ELAL0N046840@pdx.rh.CN85.dnsmgr.net> User-Agent: Mutt/1.5.24 (2015-08-30) X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jun 2018 03:52:14 -0000 On Thu, Jun 14, 2018 at 02:10:21PM -0700, Rodney W. Grimes wrote: > > It might be interesting to do in order the swapon > commands to 1G USB flash, 1G SD flash, 2G SD flash, It seems clear that USB flash swap, alone or in any combination, fails early in buildworld. 1 GB of SD flash swap seemed to work consideraby better, but even it slowed greatly when 500 MB swap was in use. 3 GB of USB mechanical swap seems to work. 3 GB of SD flash swap (2 GB plus 1 GB) also seemed to work. These tests were not with the same kernel and sources, which makes the comparisons rather suspect. The machine is now reverting to r334939 using 1 GB + 2 GB of SD flash swap. If that succeeds I will then run buildworld for each case using the same kernel, world and sources. Thanks for reading! bob prohaska