ZeroTierOne/ext/opentelemetry-cpp-1.21.0/bazel/otel_cc_benchmark.bzl
2025-07-11 10:37:21 -07:00

52 lines
1.7 KiB
Python

# Copyright The OpenTelemetry Authors
# SPDX-License-Identifier: Apache-2.0
def otel_cc_benchmark(name, srcs, deps, tags = [""]):
"""
Creates targets for the benchmark and related targets.
Example:
otel_cc_benchmark(
name = "foo_benchmark",
srcs = ["foo_benchmark.cc"],
deps = ["//bar"],
)
Creates:
:foo_benchmark (the benchmark binary)
:foo_benchmark_result (results from running the benchmark)
:foo_benchmark_smoketest (a fast test that runs a single iteration)
"""
# This is the benchmark as a binary, it can be run manually, and is used
# to generate the _result below.
native.cc_binary(
name = name,
srcs = srcs,
deps = deps + ["@com_github_google_benchmark//:benchmark"],
tags = tags + ["manual"],
defines = ["BAZEL_BUILD"],
)
# The result of running the benchmark, captured into a text file.
native.genrule(
name = name + "_result",
outs = [name + "_result.json"],
tools = [":" + name],
tags = tags + ["benchmark_result", "manual"],
testonly = True,
cmd = "$(location :" + name + (") --benchmark_format=json --benchmark_color=false --benchmark_min_time=.1s &> $@"),
)
# This is run as part of "bazel test ..." to smoke-test benchmarks. It's
# meant to complete quickly rather than get accurate results.
native.cc_test(
name = name + "_smoketest",
srcs = srcs,
deps = deps + ["@com_github_google_benchmark//:benchmark"],
args = ["--benchmark_min_time=1x"],
tags = tags + ["benchmark"],
defines = ["BAZEL_BUILD"],
)