[轉]Huge performance hit on a simple Go server with Docker

https://www.reddit.com/r/golang/comments/8ojjoj/huge_performance_hit_on_a_simple_go_server_with/

Docker's disk I/O was the bottleneck!

Solved: Disk I/O was the problem. Even though I'm on Debian 9.4, changing to an in-memory sqlite allowed Docker to push 2.9k reqs/sec. Credits to /u/Willson50 for the amazing find!


With file=dco.sqlite3?mode=memory, Docker can push ~2.9k req/sec.



Other way:

PRAGMA journal_mode=WAL;

PRAGMA synchronous=NORMAL;

https://www.sqlite.org/wal.html