Besides learning about `hyperfine`, the combination of `xargs` to keep N warm processes ready, `LD_PRELOAD` to trick them into waiting to map their windows, and

Besides learning about `hyperfine`, the combination of `xargs` to keep N warm processes ready, `LD_PRELOAD` to trick them into waiting to map their windows, and `pkill --oldest ...` to get one of those to go is quite neat. But I have a very different solution to this problem: have just one terminal window and use and abuse `tmux`. I only use new windows (or tabs, if the terminal app has those) to run `ssh` to targets where I use `tmux`. I even nest `tmux` sessions, so essentially I've two levels of `tmux` sessions, and I title each window in the top-level session to match the name of the session running in that window -- this helps me find things very quickly. I also title windows running `vi` after the `basename` of the file being edited. Add in a simple PID-to-tmux window resolver script, scripts for utilities like `cscope` to open new windows, and this gets very comfortable, and it's fast. I even have a script that launches this whole setup should I need to reboot. Opening a new `tmux` window is very snappy!