blob: ee7602b09b44cbcf59067b9518a68a3bfbd0cbbc [file] [log] [blame]
// Copyright 2022 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <lib/trace/event.h>
#include <vector>
#include <perftest/perftest.h>
namespace {
// This benchmark aims to measure the overhead of adding tracing to code. It's
// called by the end to end framework runner with and without tracing enabled
// so that the results can be compared.
// There are several different aspects of tracing that we would like to measure:
// # Tracing Enabled vs Tracing Disabled
// Tracing is done via adding lines such as TRACE_INSTANT into the code. If
// tracing is off, these should theoretically be cheap or free
// # Tracing Enabled, Category disabled
// If tracing is on, but the category the trace event emits is disabled, then
// we should expect the trace event to be cheap or free.
bool InstantEventTest() {
TRACE_INSTANT("benchmark", "InstantEvent", TRACE_SCOPE_THREAD);
return true;
bool InstantEventArgsTest() {
TRACE_INSTANT("benchmark", "InstantEventArgs", TRACE_SCOPE_THREAD, "arg1", 1, "arg2", 2, "arg3",
return true;
bool ScopedDurationEventTest() {
TRACE_DURATION("benchmark", "ScopedDuration");
return true;
bool BeginEndDurationEventTest() {
TRACE_DURATION_BEGIN("benchmark", "DurationBegin");
TRACE_DURATION_END("benchmark", "DurationEnd");
return true;
void RegisterTests() {
} // namespace