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 1RKpaz-0005CB-PZ for garchives@archives.gentoo.org; Mon, 31 Oct 2011 11:00:02 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 77AE321C0F8; Mon, 31 Oct 2011 10:59:51 +0000 (UTC) Received: from mail-yw0-f53.google.com (mail-yw0-f53.google.com [209.85.213.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 0D70D21C074 for ; Mon, 31 Oct 2011 10:58:50 +0000 (UTC) Received: by ywe9 with SMTP id 9so6757015ywe.40 for ; Mon, 31 Oct 2011 03:58:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=UlkMt20cTuVgFUbEqYLnA4brCuR0dX9sclIFrRiOh3o=; b=NWpC04IWyBxeXkWrTExqPVIt5nM5mAKcHQ66U4oIo/GmwPhxv/8S7EPpPJx3JKksFw Iw4xW6tacFDuf4lrHmk5MxAxZ0P9Wxl9+xQ13puLZUg2n9xWn2R0I2xkiEMWp2+wV/8+ 3EQC3iFtbRoLkjD5Tn6Iqz0n9A0KX+gAOfhyM= Received: by 10.151.10.19 with SMTP id n19mr9913239ybi.2.1320058730544; Mon, 31 Oct 2011 03:58:50 -0700 (PDT) Received: from [192.168.2.5] (adsl-65-0-92-237.jan.bellsouth.net. [65.0.92.237]) by mx.google.com with ESMTPS id r5sm50837354anl.13.2011.10.31.03.58.46 (version=SSLv3 cipher=OTHER); Mon, 31 Oct 2011 03:58:49 -0700 (PDT) Message-ID: <4EAE7F62.3000807@gmail.com> Date: Mon, 31 Oct 2011 05:58:42 -0500 From: Dale User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20111022 Firefox/7.0.1 SeaMonkey/2.4.1 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 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Hard drive RPMs and data speed. References: <4EA9130A.6070807@gmail.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Archives-Salt: d8177d26-10a5-4726-becb-d381f5ac0b16 X-Archives-Hash: 7a3d08c59c4571e01a33a5de51aff26b James Broadhead wrote: > On 27 October 2011 09:15, Dale wrote: >> Howdy, >> >> I'm wanting to get a hard drive that is pretty good size. I'm looking for >> about 1 to 2TBs or so. Thing is, a lot of them seem to be 5900 or even 5400 >> rpm drives. I realize that the data on there is packed pretty tight so I >> want to ask a few people that may have one or more of these things a few >> questions. Are they as fast as a slower RPM drive? Would they be fast >> enough to play HD videos and such? I have quite a few 1080 HD videos. I >> don't want the drive to cause issues. > Ignoring your question somewhat, since the hdparm test won't actually > get you 'effective' throughput, only 'ideal'. > > ( (4.4*1024*1024*1024) / (120*60) ) / 1024 > 640.796 > > So a 4.4GiB movie that lasts 2 hours would require a sustained drive > throughput of 640KiB/s - which is pretty achievable. > > My experience says that it doesn't matter how slow a drive you use, > provided that you beef up mplayer's cache size and minimum cache > threshold, since my laptop has a slow drive that likes to power down, > but loads of RAM. > >>> grep cache /etc/mplayer/mplayer.conf > # cache settings > # Use 8MB input cache by default. > cache = 131072 > # Prefill 20% of the cache before starting playback. > cache-min = 20.0 > # Prefill 50% of the cache before restarting playback after the cache emptied. > cache-seek-min = 50 > > I have the same here too. Like minds maybe? o_O Dale :-) :-)