record how much of something moves past, say bytes over the network. stores the total in a json file, and a log file too. recording the bytes moved and time active.
remember how much standard input comes per second to test, start program, then run hit keyboard a bit then kill process, then cat keystrokes-example.json
var logger = require('./')('keystrokes-example.json', 1000)
process.stdin.on('data', function (e) {
logger(e.length)
})
MIT