OurBigBook
TODO new world to me.
stackoverflow.com/questions/18215389/how-do-i-measure-request-and-response-times-at-once-using-curl is a useful one if the server is slow:
curl -o /dev/null -s -w 'Establish Connection: %{time_connect}s\nTTFB: %{time_starttransfer}s\nTotal: %{time_total}s\n' http://localhost:3000As documented at nextjs.org/docs/advanced-features/measuring-performance by uncommenting the following lines under web/pages/_app.tsx:
we see a few metrics printed on the browser such as:
//export function reportWebVitals(metric) {
// console.log(metric)
//}{
"id": "1667591558646-5510113745482",
"name": "TTFB",
"startTime": 0,
"value": 2474.199999999255,
"label": "web-vital"
}
{
"id": "1667591558646-9119282792899",
"name": "LCP",
"startTime": 4982.099,
"value": 4982.099,
"label": "web-vital"
}