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Re: Rivendell curiosity
To: CRTech <crtech@crtech.org>
Subject: Re: Rivendell curiosity
From: Lamar Owen <lowen@pari.edu>
Date: Thu, 12 Oct 2017 12:04:14 -0400
Content-language: en-US
In-reply-to: <51E29CA2-FE64-4D04-8BEB-34B8D1F7DDFB@ieee.org>
References: <CAOkhgWozDHU6V-hTiWiV-CCoSG66JewVVvyxLXQtURAFn_vLmg@mail.gmail.com> <E077351015F74F4EAAFFC02321F37A42A186242F@EMP-MB-01.emp.ark.nwc.edu> <E077351015F74F4EAAFFC02321F37A42A1862471@EMP-MB-01.emp.ark.nwc.edu> <CAOkhgWrNpFWiovRGj8r1Anwp32RgGZqnAMNLZsv2yb-PATqSpg@mail.gmail.com> <005301d34119$645d2490$2d176db0$@voiceofchristmedia.org> <CAOkhgWqAMRhentrDvdyzPV_RqwT-KiJB+bTFbT+ZuVPuWtYwyg@mail.gmail.com> <006401d34123$54364560$fca2d020$@voiceofchristmedia.org> <CAOkhgWorYabwH6OnEP-zgVQMT2BbzjEc1thwyX_CDd0rGpEGKw@mail.gmail.com> <83ca06ba-d793-a003-f53a-5db4043a628c@pari.edu> <51E29CA2-FE64-4D04-8BEB-34B8D1F7DDFB@ieee.org>
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On 10/11/2017 05:57 PM, Sherrod Munday wrote:
 From my recent experience, CentOS 7 struggles on the Dell Optiplex 620, and even the later 755 model.

I have a production machine that is a 745, but I loaded it with the full 4GB of RAM (older rev of the board that won't handle 8GB), popped a Core2Quad Q6600, and put a decent video card.  The video card was the real key, since GNOME 3 requires GPU power.  If I ran Mate instead of GNOME on it it would be faster.  I have my M-Audio Delta 1010LT in it, and while Mixbus isn't fast on it it does work ok for all channels.  For the mix I use my laptop, a Dell Precision M6700 (Core i7-3740QM w/16GB, 256GB SSD boot, 1TB data, CentOS 7) that I got used for less than 10% of retail price; with hyperthreading it acts like eight cores, and is plenty fast enough for anything I want to do with Mixbus).

Video GPU is the key for GNOME 3 performance, regardless of distribution.
OTOH, CentOS 6.x runs quite fine ... that's the RD machine I just fired up last week here on a cast-off 755.

C6 is a better choice for integrated video or older machines, for sure, even 64-bit.
Also, Ubuntu 16.04 LTS works quite zippily (if I can coin that word) on the 755.  Most of the ~25+ Optiplex 620s I'm about to get rid of at work (as freebies!) have leaking capacitors on the motherboard, even though they power on and seem to work.  I've figured that they're not worth my time without the proper desoldering station to recap them.
There are very few reasons to re-cap anything commodity these days. The last re-cap I deemed to be reasonable was replacing three plague-infested 2200uF caps on an industrial single-board passive backplane Pentium 233 system.  The software wouldn't run on anything newer, and those industrial SBCs are built like tanks.

--
Lamar Owen
Chief Technology Officer
Pisgah Astronomical Research Institute
1 PARI Drive
Rosman, NC  28772
828-862-5554
www.pari.edu

Follow-Ups: Re: Rivendell curiosity
(Tom Beattie <tom@tombeattie.com>, 12 Oct 2017 16:27:00 -0000)
References: Rivendell curiosity
(Willie Barnett <wbradiolists@gmail.com>, 9 Oct 2017 15:11:07 -0000)
RE: Rivendell curiosity
("Gullikson, Brian F" <bfgullikson@unwsp.edu>, 9 Oct 2017 15:16:08 -0000)
RE: Rivendell curiosity
("Gullikson, Brian F" <bfgullikson@unwsp.edu>, 9 Oct 2017 15:18:00 -0000)
Re: Rivendell curiosity
(Willie Barnett <wbradiolists@gmail.com>, 9 Oct 2017 15:33:59 -0000)
RE: Rivendell curiosity
(<tech@voiceofchristmedia.org>, 9 Oct 2017 16:12:29 -0000)
Re: Rivendell curiosity
(Willie Barnett <wbradiolists@gmail.com>, 9 Oct 2017 16:27:05 -0000)
RE: Rivendell curiosity
(<tech@voiceofchristmedia.org>, 9 Oct 2017 17:23:39 -0000)
Re: Rivendell curiosity
(Willie Barnett <wbradiolists@gmail.com>, 9 Oct 2017 17:43:26 -0000)
Re: Rivendell curiosity
(Lamar Owen <lowen@pari.edu>, 11 Oct 2017 21:48:18 -0000)
Re: Rivendell curiosity
(Sherrod Munday <smunday@ieee.org>, 11 Oct 2017 21:57:37 -0000)
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