Could envoy support specific work pthread auto bind cpu, if i start --concurrency 1

[zjd87]

be similar to NGINX worker_processes 1; worker_cpu_affinity auto;

[htuch]

Can you please elaborate on this by explaining what Nginx does or linking to the exact part of the documentation? Thanks.

[zjd87]

I mean that each work thread can bind each cpu core, in case of multi work thread compete for the same cpu core

[htuch]

I think you are asking for CPU pinning via thread affinity. There was some discussion of this in #4602. Do you have reason to suspect that there is a real issue here?

I think this might also come up in a performance measurement context, CC @oschaaf.

[zjd87]

I think you are asking for CPU pinning via thread affinity. There was some discussion of this in #4602. Do you have reason to suspect that there is a real issue here?

I think this might also come up in a performance measurement context, CC @oschaaf.

#4602 should be kernel tcp reuseport, solve thundering herd and request load-balance for multi threads.
But my focus is that two or more thread maybe send interrupt signal to same cpu core in a moment, compete for a cpu core, cause that cpu utilization rate reduce; If suport CPU pinning via thread affinity such configure, maybe avoid this case.
Thank you!

[zjd87]

@htuch #13602 help me solve this question , thank you!