I'm running ~600k to ~800k chrome sessions a day, each in a new browser process (no tabs/pages) because of cookie interferences. The magic is hidden in chrome'

I'm running ~600k to ~800k chrome sessions a day, each in a new browser process (no tabs/pages) because of cookie interferences. The magic is hidden in chrome's command line parameters which can significantly speed up the browser start. I'm not using headless because I need an extension but most command line switches also apply to headless I guess... A prepared profile/user directory also helps speeding up things.