Struct Tracer 

pub struct Tracer { /* private fields */ }

Performance tracer that collects timing information

Implementations

impl Tracer

pub fn new() -> Self

Create a new tracer

pub fn begin(&mut self, name: &str, category: &str)

Begin a duration event

pub fn begin_with_args( &mut self, name: &str, category: &str, args: FxHashMap<String, Value>, )

Begin a duration event with arguments

pub fn end(&mut self, name: &str, category: &str)

End a duration event

pub fn complete( &mut self, name: &str, category: &str, start: Instant, duration: Duration, )

Record a complete event with known duration

pub fn complete_with_args( &mut self, name: &str, category: &str, start: Instant, duration: Duration, args: FxHashMap<String, Value>, )

Record a complete event with arguments

pub fn instant(&mut self, name: &str, category: &str)

Record an instant event

pub fn instant_with_args( &mut self, name: &str, category: &str, args: FxHashMap<String, Value>, )

Record an instant event with arguments

pub fn metadata(&mut self, name: &str, args: FxHashMap<String, Value>)

Add metadata event (e.g., process/thread names)

pub fn write_to_file(&self, path: &Path) -> Result<()>

Write the trace to a file

pub fn events(&self) -> &[TraceEvent]

Get all recorded events

pub fn clear(&mut self)

Clear all events

Trait Implementations

impl Debug for Tracer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Tracer

fn default() -> Self

Returns the “default value” for a type.