Post #2938712
2026-05-15 11:25 UTC
@hyc@mastodon.social I can one-up that 😂
We batch out debug messages (thread-locally) and send them out with sendmmsg() if that's available.
And then we have the occasional discussion where people wonder why we don't use , we drag out some numbers and people are about the rates.
(For us it's not request rate, it's the sheer number of debug messages, all of which you want because a DFZ router is expensive to restart to hunt things. "Need debug = NEED DEBUG.")
Replies (1)
-
@equinox@chaos.social 2026-05-15 11:27
@hyc@mastodon.social (the syscall cost for logging was notable, hence the use of sendmmsg. And the issue is tracking down rare issues that happen on "important" routers once in 3 weeks; you don't want to waste a shot because you forgot debug flag XYZ.)