Search for processes by start time
Conclusions
If you compare all the solutions with regard to functionality and our original objectives, all variants with the exception of Bash variant 3 provide useful results. In terms of program size, Bash variant 2 wins; the Go variant is the longest with more than 140 lines. The Python implementation falls in the lower middle range.
Opinions differ significantly on comprehensibility and readability. Especially with Listing 11 (the compact Perl variant), even die-hard Perl programmers need a moment (and the documentation for the module we used) to understand it. The implementations in Python or Go may be longer, but can be more quickly understood even by beginners.
In terms of run time, we found no significant differences in the solutions; all of them usually delivered a result within one to a maximum of one and a half seconds. This is fine for everyday use.
Both the Python script, as well as the Perl and Go implementations, make use of a matching library that offers easy access to the process information. The libraries for Python and Perl proved to be the most comprehensive. The Go library, however, still has room for extension. Functions that are already integrated in the Python library had to be built in the Go variant.
Thanks
We would like to thank Tobias Klauser for his go-sysconf package and support in optimizing the Go variant.
Infos
- Mésocentre de Calcul at the university de Franche-Comté in Besançon: http://meso.univ-fcomte.fr/
- MATLAB: https://www.mathworks.com/products/matlab.html
- Linux process execution time: https://www.softprayog.in/tutorials/linux-process-execution-time
- psutil: https://psutil.readthedocs.io/en/latest/
- MetaCPAN: https://metacpan.org
- Proc::ProcessTable: https://metacpan.org/pod/Proc::ProcessTable
- Schwartzian transform: https://en.wikipedia.org/wiki/Schwartzian_transform
- "10 Best Programming Languages to Learn in 2020": https://hackr.io/blog/best-programming-languages-to-learn-2020-jobs-future
- go-ps: https://github.com/mitchellh/go-ps
- go-sysconf: https://github.com/tklauser/go-sysconf
- Debian package management book: https://www.dpmb.org/index.en.html
« Previous 1 2 3
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
Linux Servers Targeted by Akira Ransomware
A group of bad actors who have already extorted $42 million have their sights set on the Linux platform.
-
TUXEDO Computers Unveils Linux Laptop Featuring AMD Ryzen CPU
This latest release is the first laptop to include the new CPU from Ryzen and Linux preinstalled.
-
XZ Gets the All-Clear
The back door xz vulnerability has been officially reverted for Fedora 40 and versions 38 and 39 were never affected.
-
Canonical Collaborates with Qualcomm on New Venture
This new joint effort is geared toward bringing Ubuntu and Ubuntu Core to Qualcomm-powered devices.
-
Kodi 21.0 Open-Source Entertainment Hub Released
After a year of development, the award-winning Kodi cross-platform, media center software is now available with many new additions and improvements.
-
Linux Usage Increases in Two Key Areas
If market share is your thing, you'll be happy to know that Linux is on the rise in two areas that, if they keep climbing, could have serious meaning for Linux's future.
-
Vulnerability Discovered in xz Libraries
An urgent alert for Fedora 40 has been posted and users should pay attention.
-
Canonical Bumps LTS Support to 12 years
If you're worried that your Ubuntu LTS release won't be supported long enough to last, Canonical has a surprise for you in the form of 12 years of security coverage.
-
Fedora 40 Beta Released Soon
With the official release of Fedora 40 coming in April, it's almost time to download the beta and see what's new.
-
New Pentesting Distribution to Compete with Kali Linux
SnoopGod is now available for your testing needs