From 5aa5d282eac56a21e74611c1cdbaa97bb5db2dca Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Tue, 8 Feb 2022 02:05:36 +0300 Subject: chore(3p/abseil_cpp): unvendor abseil_cpp we weren't actually using these sources anymore, okay? Change-Id: If701571d9716de308d3512e1eb22c35db0877a66 Reviewed-on: https://cl.tvl.fyi/c/depot/+/5248 Tested-by: BuildkiteCI Reviewed-by: grfn Autosubmit: tazjin --- .../abseil_cpp/absl/strings/str_cat_benchmark.cc | 187 --------------------- 1 file changed, 187 deletions(-) delete mode 100644 third_party/abseil_cpp/absl/strings/str_cat_benchmark.cc (limited to 'third_party/abseil_cpp/absl/strings/str_cat_benchmark.cc') diff --git a/third_party/abseil_cpp/absl/strings/str_cat_benchmark.cc b/third_party/abseil_cpp/absl/strings/str_cat_benchmark.cc deleted file mode 100644 index 02c4dbe6d8f1..000000000000 --- a/third_party/abseil_cpp/absl/strings/str_cat_benchmark.cc +++ /dev/null @@ -1,187 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/strings/str_cat.h" - -#include -#include - -#include "benchmark/benchmark.h" -#include "absl/strings/substitute.h" - -namespace { - -const char kStringOne[] = "Once Upon A Time, "; -const char kStringTwo[] = "There was a string benchmark"; - -// We want to include negative numbers in the benchmark, so this function -// is used to count 0, 1, -1, 2, -2, 3, -3, ... -inline int IncrementAlternatingSign(int i) { - return i > 0 ? -i : 1 - i; -} - -void BM_Sum_By_StrCat(benchmark::State& state) { - int i = 0; - char foo[100]; - for (auto _ : state) { - // NOLINTNEXTLINE(runtime/printf) - strcpy(foo, absl::StrCat(kStringOne, i, kStringTwo, i * 65536ULL).c_str()); - int sum = 0; - for (char* f = &foo[0]; *f != 0; ++f) { - sum += *f; - } - benchmark::DoNotOptimize(sum); - i = IncrementAlternatingSign(i); - } -} -BENCHMARK(BM_Sum_By_StrCat); - -void BM_StrCat_By_snprintf(benchmark::State& state) { - int i = 0; - char on_stack[1000]; - for (auto _ : state) { - snprintf(on_stack, sizeof(on_stack), "%s %s:%d", kStringOne, kStringTwo, i); - i = IncrementAlternatingSign(i); - } -} -BENCHMARK(BM_StrCat_By_snprintf); - -void BM_StrCat_By_Strings(benchmark::State& state) { - int i = 0; - for (auto _ : state) { - std::string result = - std::string(kStringOne) + " " + kStringTwo + ":" + absl::StrCat(i); - benchmark::DoNotOptimize(result); - i = IncrementAlternatingSign(i); - } -} -BENCHMARK(BM_StrCat_By_Strings); - -void BM_StrCat_By_StringOpPlus(benchmark::State& state) { - int i = 0; - for (auto _ : state) { - std::string result = kStringOne; - result += " "; - result += kStringTwo; - result += ":"; - result += absl::StrCat(i); - benchmark::DoNotOptimize(result); - i = IncrementAlternatingSign(i); - } -} -BENCHMARK(BM_StrCat_By_StringOpPlus); - -void BM_StrCat_By_StrCat(benchmark::State& state) { - int i = 0; - for (auto _ : state) { - std::string result = absl::StrCat(kStringOne, " ", kStringTwo, ":", i); - benchmark::DoNotOptimize(result); - i = IncrementAlternatingSign(i); - } -} -BENCHMARK(BM_StrCat_By_StrCat); - -void BM_HexCat_By_StrCat(benchmark::State& state) { - int i = 0; - for (auto _ : state) { - std::string result = - absl::StrCat(kStringOne, " ", absl::Hex(int64_t{i} + 0x10000000)); - benchmark::DoNotOptimize(result); - i = IncrementAlternatingSign(i); - } -} -BENCHMARK(BM_HexCat_By_StrCat); - -void BM_HexCat_By_Substitute(benchmark::State& state) { - int i = 0; - for (auto _ : state) { - std::string result = absl::Substitute( - "$0 $1", kStringOne, reinterpret_cast(int64_t{i} + 0x10000000)); - benchmark::DoNotOptimize(result); - i = IncrementAlternatingSign(i); - } -} -BENCHMARK(BM_HexCat_By_Substitute); - -void BM_FloatToString_By_StrCat(benchmark::State& state) { - int i = 0; - float foo = 0.0f; - for (auto _ : state) { - std::string result = absl::StrCat(foo += 1.001f, " != ", int64_t{i}); - benchmark::DoNotOptimize(result); - i = IncrementAlternatingSign(i); - } -} -BENCHMARK(BM_FloatToString_By_StrCat); - -void BM_DoubleToString_By_SixDigits(benchmark::State& state) { - int i = 0; - double foo = 0.0; - for (auto _ : state) { - std::string result = - absl::StrCat(absl::SixDigits(foo += 1.001), " != ", int64_t{i}); - benchmark::DoNotOptimize(result); - i = IncrementAlternatingSign(i); - } -} -BENCHMARK(BM_DoubleToString_By_SixDigits); - -template -void BM_StrAppendImpl(benchmark::State& state, size_t total_bytes, - Chunks... chunks) { - for (auto s : state) { - std::string result; - while (result.size() < total_bytes) { - absl::StrAppend(&result, chunks...); - benchmark::DoNotOptimize(result); - } - } -} - -void BM_StrAppend(benchmark::State& state) { - const int total_bytes = state.range(0); - const int chunks_at_a_time = state.range(1); - const absl::string_view kChunk = "0123456789"; - - switch (chunks_at_a_time) { - case 1: - return BM_StrAppendImpl(state, total_bytes, kChunk); - case 2: - return BM_StrAppendImpl(state, total_bytes, kChunk, kChunk); - case 4: - return BM_StrAppendImpl(state, total_bytes, kChunk, kChunk, kChunk, - kChunk); - case 8: - return BM_StrAppendImpl(state, total_bytes, kChunk, kChunk, kChunk, - kChunk, kChunk, kChunk, kChunk, kChunk); - default: - std::abort(); - } -} - -template -void StrAppendConfig(B* benchmark) { - for (int bytes : {10, 100, 1000, 10000}) { - for (int chunks : {1, 2, 4, 8}) { - // Only add the ones that divide properly. Otherwise we are over counting. - if (bytes % (10 * chunks) == 0) { - benchmark->Args({bytes, chunks}); - } - } - } -} - -BENCHMARK(BM_StrAppend)->Apply(StrAppendConfig); - -} // namespace -- cgit 1.4.1