Golang

2212 readers

1 users here now

This is a community dedicated to the go programming language.

Useful Links:

Rules:

Posts must be relevant to Go
No NSFW content
No hate speech, bigotry, etc
Try to keep discussions on topic
No spam of tools/companies/advertisements
It’s OK to post your own stuff part of the time, but the primary use of the community should not be self-promotion.

founded 1 year ago

MODERATORS

Ategon

RandomDevOpsDude

austin

CGO Performance In Go 1.21 (shane.ai)

submitted 1 year ago by [email protected] to c/golang

1 comments fedilink hide all child comments

Cgo calls take about 40ns, about the same time encoding/json takes to parse a single digit integer. On my 20 core machine Cgo call performance scales with core count up to about 16 cores, after which some known contention issues slow things down.

top 1 comments

sorted by: hot top controversial new old

[–] sbstp 5 points 1 year ago

That's pretty decent. I'm not convinced about the 16 core limit though, the 12700H has 6 P-cores, 8 E-cores and 6 threads, totalling "20 cores". Not the best chip to benchmark multicore workloads