- SEE ALSO
- COPYRIGHT AND LICENSE
linespeed - Calculate how fast input lines are coming in
This document describes version 0.003 of linespeed (from Perl distribution App-linespeed), released on 2020-05-04.
% tail -f some-log | linespeed Cur speed: 542.751Ki/s Avg: 542.751Ki/s Lines: 928384
linespeed receives lines from standard input (or files) and calculates how fast the lines are coming in. It can be used to measure, e.g. the current HTTP requests/sec a server is getting from the webserver access log.
This script has shell tab completion capability with support for several shells.
To activate bash completion for this script, put:
complete -C linespeed linespeed
in your bash startup (e.g.
~/.bashrc). Your next shell session will then recognize tab completion for the command. Or, you can also directly execute the line above in your shell to activate immediately.
It is recommended, however, that you install modules using cpanm-shcompgen which can activate shell completion for scripts immediately.
To activate tcsh completion for this script, put:
complete linespeed 'p/*/`linespeed`/'
in your tcsh startup (e.g.
~/.tcshrc). Your next shell session will then recognize tab completion for the command. Or, you can also directly execute the line above in your shell to activate immediately.
It is also recommended to install
shcompgen (see above).
For fish and zsh, install
shcompgen as described above.
Add option: --si to use power of 1000 not 1024 (but 1000 is the default).
Show speed in the last minute, 5 mins, 15 mins (or customizable).
First written in 2000-04-14.
Please visit the project's homepage at https://metacpan.org/release/App-linespeed.
Source repository is at https://github.com/perlancar/perl-App-linespeed.
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=App-linespeed
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.
This software is copyright (c) 2020, 2016 by email@example.com.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.