Struct SamplingProfiler 

pub struct SamplingProfiler {
    pub samples: Vec<ProfileSample>,
    pub enabled: bool,
    pub interval_ns: u64,
    pub current_stack: Vec<String>,
}

A sampling-based profiler.

Fields

samples: Vec<ProfileSample>

Collected samples.

enabled: bool

Whether sampling is enabled.

interval_ns: u64

Configured sampling interval in nanoseconds.

current_stack: Vec<String>

Current simulated call stack.

Implementations

impl SamplingProfiler

pub fn new(interval_ns: u64) -> Self

Create a new sampling profiler with the given interval.

pub fn enable(&mut self)

Enable the profiler.

pub fn disable(&mut self)

Disable the profiler.

pub fn enter(&mut self, function: &str)

Simulate entering a function.

pub fn leave(&mut self, function: &str)

Simulate leaving a function.

pub fn take_sample(&mut self, thread_id: u64)

Take a sample of the current call stack.

pub fn flat_profile(&self) -> Vec<(String, usize)>

Compute the flat profile: (function_name, hit_count) sorted by count.

pub fn cumulative_profile(&self) -> Vec<(String, usize)>

Compute the cumulative profile: each function gets credit for every sample it appears in (at any depth).

pub fn sample_count(&self) -> usize

Total number of samples collected.

pub fn avg_stack_depth(&self) -> f64

Average call stack depth across all samples.