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Top Forums UNIX for Beginners Questions & Answers Interpreting Linux's free command output Post 303010992 by Peasant on Thursday 11th of January 2018 12:58:27 PM
Old 01-11-2018
Lets say we have two machines with simplified memory status :

10 GB ram, 5 GB buffers & cache, 5 GB free completely.
10 GB ram, 1 GB buffers & cache (lets say you enforce those), 9 GB free completely.

A 64 bit program requests 8 GB of RAM.
How much latency difference is involved in both scenarios when request is made ?

Can someone from kernel programmer perspective say is memory fragmentation issue when dealing with extreme sizes ?
How much time is lost on traversing all those structures, see what to return etc ?

Thank you!

Regards
Peasant.
 

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Linux::Distribution::Packages(3pm)			User Contributed Perl Documentation			Linux::Distribution::Packages(3pm)

NAME
Linux::Distribution::Packages - list all packages on various Linux distributions SYNOPSIS
use Linux::Distribution::Packages qw(distribution_packages distribution_write); $linux = new Linux::Distribution::Packages({'format' => 'csv', 'output_file' => 'packages.csv'}); $linux->distribution_write(); # Or you can (re)set the options when you write. $linux->distribution_write({'format' => 'xml', 'output_file' => 'packages.xml'}); # If you want to reload the package data $linux->distribution_packages(); DESCRIPTION
This is a simple module that uses Linux::Distribution to guess the linux distribution and then uses the correct commands to list all the packages on the system and then output them in one of three formats: native, csv, and xml. Distributions currently working: debian, ubuntu, fedora, redhat, suse, gentoo, slackware, redflag. The module inherits from Linux::Distribution, so can also use its calls. EXPORT None by default. TODO
* Add the capability to correctly get packages for all recognized distributions. * Seperate out parsing from writing. Parse data to hash and give access to hash. Then write the formatted data from the hash. AUTHORS
Judith Lebzelter, <judith@osdl.org> Alberto Re, <alberto@accidia.net> COPYRIGHT AND LICENSE
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.5 or, at your option, any later version of Perl 5 you may have available. perl v5.10.1 2006-04-19 Linux::Distribution::Packages(3pm)
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