On a system, where mawk is the default awk instead of gawk (for example, Raspbian Stretch), the following will fail to give any output until all the samples are produced. For default settings, this will cause a delay of 60x10 seconds between CPU usage updates.
On a system, where
mawkis the defaultawkinstead ofgawk(for example, Raspbian Stretch), the following will fail to give any output until all the samples are produced. For default settings, this will cause a delay of 60x10 seconds between CPU usage updates.https://github.com/samoshkin/tmux-plugin-sysstat/blob/29e150f403151f2341f3abcb2b2487a5f011dd23/scripts/cpu_collect.sh#L30-L31
I propose two solutions:
awkwith/usr/bin/gawkeverywhere in the code and listgawkas a dependency.stdbufandmawkcan produce streaming output.