2 releases
0.1.1 | Jan 10, 2021 |
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0.1.0 | Jan 1, 2021 |
#19 in #100
7KB
101 lines
ntimes
Execute a command N times
Often times, I want to obtain an average/median of request timing stats for a particular endpoint. This binary makes it possible for you to obtain reasonable stats by executing your command ntimes.
Reasonable: You might be optimizing a specific endpoint, trimming unnecesary data. ntimes can help you measure and obtain reasonable confidence. Not so much: Hitting an endpiont that returns HTML. While this may be insightful, first input delays is likely more of a concern. Once your application/browser receives its first bytes, there is still a long way to go before the user can start interacting with your site.
Links
https://blog.cloudflare.com/a-question-of-timing/
Usage
To send a sync process and wait for each subsequent command to finish.
$ ntimes 100 -- curl 'https://google.com' -s -o /dev/null -w "%{time_starttransfer}\n"
Sends command to child process. This starts subshells in parallel.
$ ntimes 100 -p -- curl 'https://google.com' -s -o /dev/null -w "%{time_starttransfer}\n"
Lastly, to gather your metrics, you can redirect the stdout to the stdin of another command.
$ ntimes 100 -- curl 'https://google.com' -s -o /dev/null -w "%{time_starttransfer}\n" | percentile
License
The MIT License