[−][src]Function ra_ap_profile::span
pub fn span(label: &'static str) -> ProfileSpan
This function starts a profiling scope in the current execution stack with a given description.
It returns a Profile
struct that measures elapsed time between this method invocation and Profile
struct drop.
It supports nested profiling scopes in case when this function is invoked multiple times at the execution stack.
In this case the profiling information will be nested at the output.
Profiling information is being printed in the stderr.
Example
profile::init_from("profile1|profile2@2"); profiling_function1(); fn profiling_function1() { let _p = profile::span("profile1"); profiling_function2(); } fn profiling_function2() { let _p = profile::span("profile2"); }
This will print in the stderr the following:
0ms - profile
0ms - profile2