From mboxrd@z Thu Jan 1 00:00:00 1970 From: beebe@math.utah.edu (Nelson H. F. Beebe) Date: Thu, 1 Mar 2018 16:28:18 -0700 Subject: [TUHS] new paper comparing Unix kernel designs Message-ID: 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. ------------------------------------------------------------------------------- - 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 at math.utah.edu - - 155 S 1400 E RM 233 beebe at acm.org beebe at computer.org - - Salt Lake City, UT 84112-0090, USA URL: http://www.math.utah.edu/~beebe/ - -------------------------------------------------------------------------------