Is there a better way to display cpu usage in tmux?

Question

Here's a solution which may consume a lot of cpu usage (stolen from this article): There's a difference in my Ubuntu 12 ec2 server, I have to use `top -bn1` instead of `top -ln`. Here's my related `.tmux.conf` file: `set -g status-right '#[fg=yellow]#[(getCpuUsage.sh)]'` It actually calls `top` every 2 seconds and outputs a whole lot of information. I think there should be a way involving less cpu consumption or use some flag to limit the output of `top` to only cpu usage.

Accepted Answer

I use the small tmux-mem-cpu-load C++ program. It's at least one fork/exec per update either way, but probably better than invoking a shell.

Is there a better way to display cpu usage in tmux?

Solution

Problem