tracing

A header-only C++ tracing library.

• Zero dependencies
• Compatible with Perfetto and Trace Event Profiling Tool

Examples

cmake -B build -DCMAKE_BUILD_TYPE=Release -S .
cmake --build build --config Release
ctest --test-dir build --build-config Release --output-on-failure

Factorial

#include "tracing.hpp"

static tracing::Tracer s_tracer{"factorial.json"};

static std::uint64_t factorial(std::uint64_t n) {
  if (n <= 1) {
    const tracing::InstantEvent event{s_tracer, "factorial.case0"};
    return 1;
  }
  const tracing::DurationEvent event{s_tracer, "factorial.case1"};
  return n * factorial(n - 1);
}

int main() {
  factorial(20);
  return 0;
}

Output

Perfetto

Massif

Fibonacci

#include "tracing.hpp"

static tracing::Tracer s_tracer{"fibonacci.json"};

static std::uint64_t fibonacci(std::uint64_t n) {
  if (n <= 1) {
    const tracing::InstantEvent event{s_tracer, "fibonacci.case0"};
    return n;
  }
  const tracing::DurationEvent event{s_tracer, "fibonacci.case1"};
  return fibonacci(n - 1) + fibonacci(n - 2);
}

int main() {
  fibonacci(20);
  return 0;
}

Output

Perfetto

Massif