1 files changed, 96 insertions, 0 deletions
diff --git a/logcat/tests/exec_benchmark.cpp b/logcat/tests/exec_benchmark.cpp
new file mode 100644
index 000000000..c30a5f5f1
--- /dev/null
+++ b/logcat/tests/exec_benchmark.cpp
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * 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
+ *
+ *      http://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 <stdio.h>
+
+#include <android-base/file.h>
+#include <benchmark/benchmark.h>
+#include <log/logcat.h>
+
+// Dump the statistics and report results
+
+static void logcat_popen_libc(benchmark::State& state, const char* cmd) {
+    while (state.KeepRunning()) {
+        FILE* fp = popen(cmd, "r");
+        std::string ret;
+        android::base::ReadFdToString(fileno(fp), &ret);
+        pclose(fp);
+    }
+}
+
+static void BM_logcat_stat_popen_libc(benchmark::State& state) {
+    logcat_popen_libc(state, "logcat -b all -S");
+}
+BENCHMARK(BM_logcat_stat_popen_libc);
+
+static void logcat_popen_liblogcat(benchmark::State& state, const char* cmd) {
+    while (state.KeepRunning()) {
+        android_logcat_context ctx;
+        FILE* fp = android_logcat_popen(&ctx, cmd);
+        std::string ret;
+        android::base::ReadFdToString(fileno(fp), &ret);
+        android_logcat_pclose(&ctx, fp);
+    }
+}
+
+static void BM_logcat_stat_popen_liblogcat(benchmark::State& state) {
+    logcat_popen_liblogcat(state, "logcat -b all -S");
+}
+BENCHMARK(BM_logcat_stat_popen_liblogcat);
+
+static void logcat_system_libc(benchmark::State& state, const char* cmd) {
+    while (state.KeepRunning()) {
+        system(cmd);
+    }
+}
+
+static void BM_logcat_stat_system_libc(benchmark::State& state) {
+    logcat_system_libc(state, "logcat -b all -S >/dev/null 2>/dev/null");
+}
+BENCHMARK(BM_logcat_stat_system_libc);
+
+static void logcat_system_liblogcat(benchmark::State& state, const char* cmd) {
+    while (state.KeepRunning()) {
+        android_logcat_system(cmd);
+    }
+}
+
+static void BM_logcat_stat_system_liblogcat(benchmark::State& state) {
+    logcat_system_liblogcat(state, "logcat -b all -S >/dev/null 2>/dev/null");
+}
+BENCHMARK(BM_logcat_stat_system_liblogcat);
+
+// Dump the logs and report results
+
+static void BM_logcat_dump_popen_libc(benchmark::State& state) {
+    logcat_popen_libc(state, "logcat -b all -d");
+}
+BENCHMARK(BM_logcat_dump_popen_libc);
+
+static void BM_logcat_dump_popen_liblogcat(benchmark::State& state) {
+    logcat_popen_liblogcat(state, "logcat -b all -d");
+}
+BENCHMARK(BM_logcat_dump_popen_liblogcat);
+
+static void BM_logcat_dump_system_libc(benchmark::State& state) {
+    logcat_system_libc(state, "logcat -b all -d >/dev/null 2>/dev/null");
+}
+BENCHMARK(BM_logcat_dump_system_libc);
+
+static void BM_logcat_dump_system_liblogcat(benchmark::State& state) {
+    logcat_system_liblogcat(state, "logcat -b all -d >/dev/null 2>/dev/null");
+}
+BENCHMARK(BM_logcat_dump_system_liblogcat);