The curl Flag That Tells You Which Part of the Request Was Slow
A slow request is five possible slow things. One curl flag with a write-out template splits the total into DNS, connect, TLS, time to first byte and…
| Phase | Compute | Owned by |
|---|---|---|
| DNS | time_namelookup |
Resolver, caches |
| TCP connect | time_connect - time_namelookup |
Network distance |
| TLS handshake | time_appconnect - time_connect |
Cert chain, protocol |
| Server think | time_starttransfer - time_appconnect |
Your application |
| Transfer | time_total - time_starttransfer |
Payload size, bandwidth |
Related reading: The lsof Output That Showed Who Was Holding the Port explores a connected angle.
Related reading: Every Layer That Caches a DNS Answer Between You and the Record explores a connected angle.
Published on debugly.dev by Rohit Bhadani | Founder of Krova Cloud
