From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1QCWgx-0004HE-Id for garchives@archives.gentoo.org; Wed, 20 Apr 2011 12:39:35 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 644611C003; Wed, 20 Apr 2011 12:37:44 +0000 (UTC) Received: from smtpq2.gn.mail.iss.as9143.net (smtpq2.gn.mail.iss.as9143.net [212.54.34.165]) by pigeon.gentoo.org (Postfix) with ESMTP id 213A41C003 for ; Wed, 20 Apr 2011 12:37:43 +0000 (UTC) Received: from [212.54.34.151] (helo=smtp19.gn.mail.iss.as9143.net) by smtpq2.gn.mail.iss.as9143.net with esmtp (Exim 4.71) (envelope-from ) id 1QCWf9-0007ra-G4 for gentoo-user@lists.gentoo.org; Wed, 20 Apr 2011 14:37:43 +0200 Received: from 5ed02730.cm-7-1a.dynamic.ziggo.nl ([94.208.39.48] helo=data.antarean.org) by smtp19.gn.mail.iss.as9143.net with esmtp (Exim 4.71) (envelope-from ) id 1QCWf8-0001z8-R8 for gentoo-user@lists.gentoo.org; Wed, 20 Apr 2011 14:37:42 +0200 Received: from localhost (localhost [127.0.0.1]) by data.antarean.org (Postfix) with ESMTP id C496B30E9 for ; Wed, 20 Apr 2011 14:38:33 +0200 (CEST) X-Virus-Scanned: amavisd-new at antarean.org Received: from data.antarean.org ([127.0.0.1]) by localhost (data.antarean.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ed6AFQfybqsF for ; Wed, 20 Apr 2011 14:38:33 +0200 (CEST) Received: from eve.localnet (eve.lan.antarean.org [10.20.13.50]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by data.antarean.org (Postfix) with ESMTPS id 83B3F1135 for ; Wed, 20 Apr 2011 14:38:33 +0200 (CEST) From: Joost Roeleveld To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Howzat! Date: Wed, 20 Apr 2011 14:37:41 +0200 User-Agent: KMail/4.6 beta4 (Linux/2.6.36-gentoo-r5; KDE/4.6.2; x86_64; ; ) In-Reply-To: <20110420092619.48AF730E9@data.antarean.org> References: <201104180228.59487.peter@humphrey.ukfsn.org> <4DAE9C65.7020506@gmail.com> <20110420092619.48AF730E9@data.antarean.org> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Message-Id: <20110420123833.C496B30E9@data.antarean.org> X-ZiggoSMTP-MailScanner-Information: Please contact the ISP for more information X-ZiggoSMTP-MailScanner-ID: 1QCWf8-0001z8-R8 X-ZiggoSMTP-MailScanner: Found to be clean X-ZiggoSMTP-MailScanner-SpamCheck: geen spam, SpamAssassin (niet cached, score=-0.928, vereist 5, BAYES_00 -1.90, RDNS_DYNAMIC 0.98, T_RP_MATCHES_RCVD -0.01) X-ZiggoSMTP-MailScanner-From: joost@antarean.org X-Spam-Status: No X-Archives-Salt: X-Archives-Hash: 8444178f20219119efb51115cddb64f3 On Wednesday 20 April 2011 11:25:27 Joost Roeleveld wrote: > On Wednesday 20 April 2011 03:42:13 Dale wrote: > > Joost Roeleveld wrote: > > > On Tuesday 19 April 2011 17:54:02 Dale wrote: > > >> Kfir Lavi wrote: > > >>> I do a lot of compiling on my laptop using Catalyst for > > >>> embedded. > > >>> I upgraded my RAM to 8GB (2x4GB = 90$ ebay). > > >>> I mount /var/tmp as tmpfs. > > >>> Thats how I keep my SSD ;) > > >>> > > >>> Kfir > > >>> > > >>> -- > > >>> Poison [BLX] > > >>> Joshua M. Murphy > > >> > > >> I got 16Gbs in my rig and I mounted portages work directory on > > >> tmpfs, > > >> it > > >> was actually slower. That is likely a good idea to keep from > > >> wearing > > >> out the SSD but it doesn't seem to make anything compile faster. > > > > > > Strange, it actually got faster on mine when doing that. > > > Did you mount with "noatime"? :) > > > > > > -- > > > Joost > > > > Yep. It actually took a few seconds longer compiling in memory. I > > thought that was weird to tho. It doesn't make much sense to me. > > > > Dale > > > > :-) :-) > > Hmm... > Will be doing some timing-tests then.... > Openoffice is a good one for that ;) Ok, just done the tests. using tmpfs for /var/tmp/portage is quicker, but not by much. Without TMPFS: # time emerge -v openoffice real 32m44.742s user 20m18.320s sys 5m38.000s With TMPFS: # mount -onoatime,size=7G -ttmpfs none /var/tmp/portage # time emerge -v openoffice real 31m30.835s user 20m3.510s sys 5m38.030s Specification of this machine: 12GB RAM Quad Core Xeon W3565 @ 3.2Ghz with HT enabled There are 2 drives in stripe-mode (software RAID-0) which does speed up the I/O a lot. -- Joost