2 Mar
2018
2 Mar
'18
5:28 a.m.
A new paper comparing Unix kernel designs was published earlier today:
Stergios Papadimitriou and Lefteris Moussiades
Mac OS versus FreeBSD: A Comparative Evaluation
[IEEE] Computer 52(2), 44--53, February 2018
https://doi.org/10.1109/MC.2018.1451648
Despite the title, GNU/Linux also is included in the comparisons. The
abstract is:
> ...
> FreeBSD (an open source Unix-like OS) and Apple's Mac OS use similar
> BSD functionality but take different approaches. FreeBSD implements a
> traditional compact monolithic Unix kernel, whereas Mac OS builds the
> BSD Unix functionality on top of the Mach microkernel. The authors
> provide an in-depth technical investigation of both approaches.
> ...
Our fellow list member Larry McVoy, and his lmbench suite, are
mentioned in the article, along with results of that suite.
There are about 200 numbers in the two large tables of performance
measurements, and while many are comparable across operating systems,
there are some benchmarks that show up to a 40x difference between
systems on the same hardware.
-------------------------------------------------------------------------------
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- University of Utah FAX: +1 801 581 4148 -
- Department of Mathematics, 110 LCB Internet e-mail: beebe(a)math.utah.edu -
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2 Mar
2 Mar
5:44 a.m.
On Thu, 1 Mar 2018, Nelson H. F. Beebe wrote:
A new paper comparing Unix kernel designs was
published earlier today:
Stergios Papadimitriou and Lefteris Moussiades
Mac OS versus FreeBSD: A Comparative Evaluation
[IEEE] Computer 52(2), 44--53, February 2018
https://doi.org/10.1109/MC.2018.1451648
And US$33.00 for non-IEEE members; I'll pass...
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."
6:10 a.m.
> And US$33.00 for non-IEEE members;
Yes, that can be a problem for journal publications.
However, throughout the developed world, many academic, city, county,
and regional libraries offer their clients Interlibrary Loan service
that might be zero cost to you. I use that service many times a year,
and I even once got a loaned hardcopy book that came to Utah from a
library in Scotland (and was later safely returned to Scotland).
-------------------------------------------------------------------------------
- Nelson H. F. Beebe Tel: +1 801 581 5254 -
- University of Utah FAX: +1 801 581 4148 -
- Department of Mathematics, 110 LCB Internet e-mail: beebe(a)math.utah.edu -
- 155 S 1400 E RM 233 beebe(a)acm.org beebe(a)computer.org -
- Salt Lake City, UT 84112-0090, USA URL: http://www.math.utah.edu/~beebe/ -
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6:47 a.m.
Unix history. Btw. One of the things I'm proud of as president at the time
- Usenix was the first of the academic orgs to remove it's pay wall and go
100% free access.
On Thu, Mar 1, 2018 at 7:11 PM Nelson H. F. Beebe <beebe(a)math.utah.edu>
wrote:
--
Sent from a handheld expect more typos than usual
> And
US$33.00 for non-IEEE members;
Yes, that can be a problem for journal publications.
However, throughout the developed world, many academic, city, county,
and regional libraries offer their clients Interlibrary Loan service
that might be zero cost to you. I use that service many times a year,
and I even once got a loaned hardcopy book that came to Utah from a
library in Scotland (and was later safely returned to Scotland).
-------------------------------------------------------------------------------
- Nelson H. F. Beebe Tel: +1 801 581 5254
-
- University of Utah FAX: +1 801 581 4148
-
- Department of Mathematics, 110 LCB Internet e-mail:
beebe(a)math.utah.edu -
- 155 S 1400 E RM
<https://maps.google.com/?q=%0A-+155+S+1400+E+RM+&entry=gmail&source=g>233
beebe(a)acm.org beebe(a)computer.org -
- Salt Lake City, UT 84112-0090, USA URL:
http://www.math.utah.edu/~beebe/ -
-------------------------------------------------------------------------------
6:54 a.m.
On Thu, 1 Mar 2018, Nelson H. F. Beebe wrote:
Yeah, Australia is developed (although sometimes I wonder), so I'll
check out my library; should be free 'cuz I'm a member of it.
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."
> And
US$33.00 for non-IEEE members;
Yes, that can be a problem for journal publications.
However, throughout the developed world, many academic, city, county,
and regional libraries offer their clients Interlibrary Loan service
that might be zero cost to you. I use that service many times a year,
and I even once got a loaned hardcopy book that came to Utah from a
library in Scotland (and was later safely returned to Scotland). 
7:42 a.m.
On Fri, Mar 02, 2018 at 10:44:22AM +1100, Dave Horsfall wrote:
On Thu, 1 Mar 2018, Nelson H. F. Beebe wrote:
I really hate that they do that, it restricts the information flow.
I always stuck up pdfs of my papers so people could grab them.
A new paper comparing Unix kernel designs was
published earlier today:
Stergios Papadimitriou and Lefteris Moussiades
Mac OS versus FreeBSD: A Comparative Evaluation
[IEEE] Computer 52(2), 44--53, February 2018
https://doi.org/10.1109/MC.2018.1451648
And US$33.00 for non-IEEE members; I'll pass... 
3:10 p.m.
macos uses a (far flung mach derived) osf kernel, which is a hybrid and not a microkernel.
Additionally macos utilize other bsd kernel functionality.
At 1 Mar 2018 23:29:36 +0000 (+00:00) from "Nelson H. F. Beebe"
<beebe(a)math.utah.edu>du>:
A new paper comparing Unix kernel designs was
published earlier today:
>> ... FreeBSD implements a
>> traditional compact monolithic Unix kernel, whereas Mac OS builds the
>> BSD Unix functionality on top of the Mach microkernel. The authors
>> provide an in-depth technical investigation of both approaches.
2268
days inactive
2269
days old
6 comments
5 participants
participants (5)
-
Clem Cole -
Dave Horsfall -
Donald ODona -
Larry McVoy -
Nelson H. F. Beebe