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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include <benchmark/benchmark.h>
#include <cstdint>
#include "opentelemetry/context/context.h"
#include "opentelemetry/context/runtime_context.h"
#include "opentelemetry/nostd/shared_ptr.h"
#include "opentelemetry/nostd/span.h"
#include "opentelemetry/nostd/string_view.h"
#include "opentelemetry/nostd/variant.h"
#include "opentelemetry/trace/context.h"
#include "opentelemetry/trace/default_span.h"
#include "opentelemetry/trace/noop.h"
#include "opentelemetry/trace/scope.h"
#include "opentelemetry/trace/span.h"
#include "opentelemetry/trace/span_context.h"
#include "opentelemetry/trace/span_id.h"
#include "opentelemetry/trace/span_startoptions.h"
#include "opentelemetry/trace/trace_flags.h"
#include "opentelemetry/trace/trace_id.h"
#include "opentelemetry/trace/tracer.h"
using opentelemetry::trace::SpanContext;
namespace trace_api = opentelemetry::trace;
namespace nostd = opentelemetry::nostd;
namespace context = opentelemetry::context;
namespace
{
std::shared_ptr<trace_api::Tracer> initTracer()
{
return std::shared_ptr<trace_api::Tracer>(new trace_api::NoopTracer());
}
// Test to measure performance for span creation
void BM_SpanCreation(benchmark::State &state)
{
auto tracer = initTracer();
while (state.KeepRunning())
{
auto span = tracer->StartSpan("span");
span->End();
}
}
BENCHMARK(BM_SpanCreation);
// Test to measure performance for single span creation with scope
void BM_SpanCreationWithScope(benchmark::State &state)
{
auto tracer = initTracer();
while (state.KeepRunning())
{
auto span = tracer->StartSpan("span");
auto scope = tracer->WithActiveSpan(span);
span->End();
}
}
BENCHMARK(BM_SpanCreationWithScope);
// Test to measure performance for nested span creation with scope
void BM_NestedSpanCreationWithScope(benchmark::State &state)
{
auto tracer = initTracer();
while (state.KeepRunning())
{
auto o_span = tracer->StartSpan("outer");
auto o_scope = tracer->WithActiveSpan(o_span);
{
auto i_span = tracer->StartSpan("inner");
auto i_scope = tracer->WithActiveSpan(i_span);
{
auto im_span = tracer->StartSpan("innermost");
auto im_scope = tracer->WithActiveSpan(im_span);
im_span->End();
}
i_span->End();
}
o_span->End();
}
}
BENCHMARK(BM_NestedSpanCreationWithScope);
// Test to measure performance for nested span creation with manual span context management
void BM_SpanCreationWithManualSpanContextPropagation(benchmark::State &state)
{
auto tracer = initTracer();
constexpr uint8_t buf1[] = {1, 2, 3, 4, 5, 6, 7, 8};
trace_api::SpanId span_id(buf1);
constexpr uint8_t buf2[] = {1, 2, 3, 4, 5, 6, 7, 8, 8, 7, 6, 5, 4, 3, 2, 1};
trace_api::TraceId trace_id(buf2);
while (state.KeepRunning())
{
auto outer_span = nostd::shared_ptr<trace_api::Span>(
new trace_api::DefaultSpan(SpanContext(trace_id, span_id, trace_api::TraceFlags(), false)));
trace_api::StartSpanOptions options;
options.parent = outer_span->GetContext();
auto inner_span = tracer->StartSpan("inner", options);
auto inner_span_context = inner_span->GetContext();
options.parent = inner_span_context;
auto innermost_span = tracer->StartSpan("innermost", options);
innermost_span->End();
inner_span->End();
}
}
BENCHMARK(BM_SpanCreationWithManualSpanContextPropagation);
// Test to measure performance for nested span creation with context propagation
void BM_SpanCreationWitContextPropagation(benchmark::State &state)
{
auto tracer = initTracer();
constexpr uint8_t buf1[] = {1, 2, 3, 4, 5, 6, 7, 8};
trace_api::SpanId span_id(buf1);
constexpr uint8_t buf2[] = {1, 2, 3, 4, 5, 6, 7, 8, 8, 7, 6, 5, 4, 3, 2, 1};
trace_api::TraceId trace_id(buf2);
while (state.KeepRunning())
{
auto current_ctx = context::RuntimeContext::GetCurrent();
auto outer_span_context = SpanContext(trace_id, span_id, trace_api::TraceFlags(), false);
auto outer_span =
nostd::shared_ptr<trace_api::Span>(new trace_api::DefaultSpan(outer_span_context));
trace_api::SetSpan(current_ctx, outer_span);
auto inner_child = tracer->StartSpan("inner");
auto inner_scope = tracer->WithActiveSpan(inner_child);
{
auto innermost_child = tracer->StartSpan("innermost");
auto innermost_scope = tracer->WithActiveSpan(innermost_child);
innermost_child->End();
}
inner_child->End();
}
}
BENCHMARK(BM_SpanCreationWitContextPropagation);
} // namespace
BENCHMARK_MAIN();
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