pprof CPU profiles missing inlined frames

[Prashant V]

Is it expected that CPU profiles taken with pprof don't include inlined frames?

With a simple repro, when the `double` function has `go:noinline`, then the pprof shows the double function as expected,

     3.34s 67.07% 67.07%      4.98s   100%  main.main
     1.64s 32.93%   100%      1.64s 32.93%  main.double

However, when the noinline directive is removed, the double function isn't shown, only the main function is:

     4.99s   100%   100%      4.99s   100%  main.main

Is this an expected limitation of pprof profiles, or this a bug that I should report?

Thanks

[Keith Randall]

This is a problem with your test. pprof is correct here. Since you never use n, when double is inlined its body is compiled completely away.

[Prashant V]

Ahh, I simplified the test too much, my mistake.

I modified the example and verified that the profile does capture the inline function:

     3.95s 79.16% 79.16%      3.95s 79.16%  main.modify (inline)
     1.04s 20.84%   100%      4.99s   100%  main.main

Thank you

[cluffj...@gmail.com]

Got it.

Sent from Yahoo Mail for iPhone

--
You received this message because you are subscribed to the Google Groups "golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts...@googlegroups.com.
To view this discussion on the web visit

https://groups.google.com/d/msgid/golang-nuts/055b81a1-9890-40af-b359-c440769f2d89n%40googlegroups.com

.