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Full Discussion: Are the BSDs dying?
The Lounge What is on Your Mind? Are the BSDs dying? Post 303012227 by Neo on Wednesday 31st of January 2018 11:15:49 PM
Old 02-01-2018
There is nothing "dead" about BSD. BSD lives in the heart and soul of MacOS, and MacOS is a very popular computer operating system. All software changes over time, and BSD is no exception and BSD changed the heart of the MacOS forever:

Reference:

BSD Overview

Quote:
BSD Overview

The BSD portion of the OS X kernel is derived primarily from FreeBSD, a version of 4.4BSD that offers advanced networking, performance, security, and compatibility features. BSD variants in general are derived (sometimes indirectly) from 4.4BSD-Lite Release 2 from the Computer Systems Research Group (CSRG) at the University of California at Berkeley. BSD provides many advanced features, including the following:

Preemptive multitasking with dynamic priority adjustment. Smooth and fair sharing of the computer between applications and users is ensured, even under the heaviest of loads.

Multiuser access. Many people can use an OS X system simultaneously for a variety of things. This means, for example, that system peripherals such as printers and disk drives are properly shared between all users on the system or the network and that individual resource limits can be placed on users or groups of users, protecting critical system resources from overuse.

Strong TCP/IP networking with support for industry standards such as SLIP, PPP, and NFS. OS X can interoperate easily with other systems as well as act as an enterprise server, providing vital functions such as NFS (remote file access) and email services, or Internet services such as HTTP, FTP, routing, and firewall (security) services.
Memory protection. Applications cannot interfere with each other. One application crashing does not affect others in any way.

Virtual memory and dynamic memory allocation. Applications with large appetites for memory are satisfied while still maintaining interactive response to users. With the virtual memory system in OS X, each application has access to its own 4 GB memory address space; this should satisfy even the most memory-hungry applications.
Support for kernel threads based on Mach threads. User-level threading packages are implemented on top of kernel threads. Each kernel thread is an independently scheduled entity. When a thread from a user process blocks in a system call, other threads from the same process can continue to execute on that or other processors. By default, a process in the conventional sense has one thread, the main thread. A user process can use the POSIX thread API to create other user threads.

SMP support. Support is included for computers with multiple CPUs.

Source code. Developers gain the greatest degree of control over the BSD programming environment because source is included.

Many of the POSIX APIs.
 

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NYTPROFCSV(1p)						User Contributed Perl Documentation					    NYTPROFCSV(1p)

NAME
nytprofcsv - Devel::NYTProf::Reader CSV format implementation SYNOPSIS
$ nytprofcsv [-h] [-d] [-o <output directory>] [-f <input file>] perl -d:NYTProf some_perl_app.pl nytprofcsv Generating CSV Output... HISTORY
A bit of history and a shameless plug... NYTProf stands for 'New York Times Profiler'. Indeed, the original version of this module was developed by The New York Times Co. to help our developers quickly identify bottlenecks in large Perl applications. The NY Times loves Perl and we hope the community will benefit from our work as much as we have from theirs. Please visit <http://open.nytimes.com>, our open source blog to see what we are up to, <http://code.nytimes.com> to see some of our open projects and then check out <htt://nytimes.com> for the latest news! DESCRIPTION
"nytprofcsv" is a script that implements Devel::NYTProf::Reader to create comma-seperated value formatted reports from Devel::NYTProf databases. See the Devel::NYTProf Perl code profiler for more information. COMMAND-LINE OPTIONS These are the command line options understood by "nytprofcsv" -f, --file <filename> Specifies the location of the input file. The input file must be the output of fprofpp. Default: nytprof.out -o, --out <dir> Where to place the generated report. Default: ./nytprof/ -d, --delete Purge any existing database located at whatever -o (above) is set to -h, --help Print the help message SAMPLE OUTPUT
# Profile data generated by Devel::NYTProf::Reader v.0.01 # Author: Adam Kaplan. More information at http://search.cpan.org/~akaplan # Format: time,calls,time/call,code 0,0,0,#-------------------------------------------------------------------- 0,0,0,# My New Source File! 0,0,0,#-------------------------------------------------------------------- 0,0,0,# $Id: nytprofcsv 1310 2010-06-17 14:51:01Z tim.bunce@gmail.com $ 0,0,0,#-------------------------------------------------------------------- 0,0,0, 0,0,0,package NYT::Feeds::Util; 0.00047,3,0.000156666666666667,use Date::Calc qw(Add_Delta_DHMS); 0.00360,3,0.0012,use HTML::Entities; 0.00212,3,0.000706666666666667,use Encode; 0.00248,3,0.000826666666666667,use utf8; 0.00468,3,0.00156,use strict; 0,0,0, 0.00000,1,0,require Exporter; ... thats enough, get the picture? ... Note: The format line indicates what fields the numbers correspond to Note2: If the source file is modified between profiling and report generation, the source might be misaligned SEE ALSO
Mailing list and discussion at http://groups.google.com/group/develnytprof-dev <http://groups.google.com/group/develnytprof-dev> Public SVN Repository and hacking instructions at http://code.google.com/p/perl-devel-nytprof/ <http://code.google.com/p/perl-devel- nytprof/> Devel::NYTProf Devel::NYTProf::Reader nytprofhtml is an HTML implementation of Devel::NYTProf::Reader AUTHOR
Adam Kaplan, akaplan at nytimes dotcom COPYRIGHT AND LICENSE
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or, at your option, any later version of Perl 5 you may have available. perl v5.14.2 2010-06-17 NYTPROFCSV(1p)
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