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authorVincent Ambo <tazjin@google.com>2020-05-20T01·32+0100
committerVincent Ambo <tazjin@google.com>2020-05-20T01·32+0100
commitfc8dc48020ac5b52731d0828a96ea4d2526c77ba (patch)
tree353204eea3268095a9ad3f5345720f32c2615c69 /third_party/abseil_cpp/absl/time/format_benchmark.cc
parentffb2ae54beb5796cd408fbe15d2d2da09ff37adf (diff)
parent768eb2ca2857342673fcd462792ce04b8bac3fa3 (diff)
Add 'third_party/abseil_cpp/' from commit '768eb2ca2857342673fcd462792ce04b8bac3fa3' r/781
git-subtree-dir: third_party/abseil_cpp
git-subtree-mainline: ffb2ae54beb5796cd408fbe15d2d2da09ff37adf
git-subtree-split: 768eb2ca2857342673fcd462792ce04b8bac3fa3
Diffstat (limited to 'third_party/abseil_cpp/absl/time/format_benchmark.cc')
-rw-r--r--third_party/abseil_cpp/absl/time/format_benchmark.cc64
1 files changed, 64 insertions, 0 deletions
diff --git a/third_party/abseil_cpp/absl/time/format_benchmark.cc b/third_party/abseil_cpp/absl/time/format_benchmark.cc
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index 000000000000..249c51d87586
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+++ b/third_party/abseil_cpp/absl/time/format_benchmark.cc
@@ -0,0 +1,64 @@
+// 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 <cstddef>
+#include <string>
+
+#include "absl/time/internal/test_util.h"
+#include "absl/time/time.h"
+#include "benchmark/benchmark.h"
+
+namespace {
+
+namespace {
+const char* const kFormats[] = {
+    absl::RFC1123_full,     // 0
+    absl::RFC1123_no_wday,  // 1
+    absl::RFC3339_full,     // 2
+    absl::RFC3339_sec,      // 3
+    "%Y-%m-%dT%H:%M:%S",    // 4
+    "%Y-%m-%d",             // 5
+};
+const int kNumFormats = sizeof(kFormats) / sizeof(kFormats[0]);
+}  // namespace
+
+void BM_Format_FormatTime(benchmark::State& state) {
+  const std::string fmt = kFormats[state.range(0)];
+  state.SetLabel(fmt);
+  const absl::TimeZone lax =
+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
+  const absl::Time t =
+      absl::FromCivil(absl::CivilSecond(1977, 6, 28, 9, 8, 7), lax) +
+      absl::Nanoseconds(1);
+  while (state.KeepRunning()) {
+    benchmark::DoNotOptimize(absl::FormatTime(fmt, t, lax).length());
+  }
+}
+BENCHMARK(BM_Format_FormatTime)->DenseRange(0, kNumFormats - 1);
+
+void BM_Format_ParseTime(benchmark::State& state) {
+  const std::string fmt = kFormats[state.range(0)];
+  state.SetLabel(fmt);
+  const absl::TimeZone lax =
+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
+  absl::Time t = absl::FromCivil(absl::CivilSecond(1977, 6, 28, 9, 8, 7), lax) +
+                 absl::Nanoseconds(1);
+  const std::string when = absl::FormatTime(fmt, t, lax);
+  std::string err;
+  while (state.KeepRunning()) {
+    benchmark::DoNotOptimize(absl::ParseTime(fmt, when, lax, &t, &err));
+  }
+}
+BENCHMARK(BM_Format_ParseTime)->DenseRange(0, kNumFormats - 1);
+
+}  // namespace