Does pprof enabled in production gives a significant impact in performance?

[Marcos Oliveira]

Gophers,

We are to deploy a service in production and there's the question if we should keep pprof and its HTTP handlers enabled by default in the service or if we should have a flag that enables them when needed, but that would require a restart of the service.

Is a significant performance impact if we keep it enabled all the time?

Thank you,

-- Marcos

[Ian Lance Taylor]

There is no significant performance impact if the handler is enabled
but not used. There is, naturally, some performance impact if
somebody actually collects a profile. You may want to do something to
ensure that only authorized users can collect a profile.

Ian

[Marcos Oliveira]

Ian,

Thank you for the answer.

It will be bound to localhost so only engineers and SREs will have access.

-- Marcos