Is it possible to increase the sample rate when profiling go programs?
go, pprof, profiling
Solution
Package runtime
func SetCPUProfileRate
func SetCPUProfileRate(hz int)
SetCPUProfileRate sets the CPU profiling rate to hz samples per second. If hz <= 0, SetCPUProfileRate turns off profiling. If the profiler is on, the rate cannot be changed without first turning it off.
Most clients should use the runtime/pprof package or the testing package's -test.cpuprofile flag instead of calling SetCPUProfileRate directly.
Problem
I have a small program in go that executes most of its code in parallel using go routines. I start CPU profiling as described in the blog on profiling go programs, but when I look at the data I see only 3-5 samples (the actual runtime of the program is several seconds). Is there way to increase the sample rate? Tried googling but couldn't find a thing...