bionic: benchmark: add clock_getres performance tests

Provide a means to check vdso kernel performance for all reasoned
combinations of clock_getres, same set of ids as clock_gettime.

Add to suites/vdso.xml

Test: /data/nativetest{64}/bionic-benchmarks-tests/bionic-benchmarks-tests
      /data/benchmarktest{64}/bionic-benchmarks/bionic-benchmarks \
        --bionic_xml=vdso.xml --benchmark_filter=BM_time_clock_getres*
Bug: 63737556
Change-Id: I11ea200f67aec2a2f6ad9284960f2941298da222

3 files changed, 91 insertions, 0 deletions

diff --git a/benchmarks/suites/vdso.xml b/benchmarks/suites/vdso.xml
index 86409bb1e..1f5958cf6 100644
--- a/benchmarks/suites/vdso.xml
+++ b/benchmarks/suites/vdso.xml
@@ -1,4 +1,25 @@
 <fn>
+  <name>BM_time_clock_getres</name>
+</fn>
+<fn>
+  <name>BM_time_clock_getres_BOOTTIME</name>
+</fn>
+<fn>
+  <name>BM_time_clock_getres_MONOTONIC_COARSE</name>
+</fn>
+<fn>
+  <name>BM_time_clock_getres_MONOTONIC_RAW</name>
+</fn>
+<fn>
+  <name>BM_time_clock_getres_REALTIME</name>
+</fn>
+<fn>
+  <name>BM_time_clock_getres_REALTIME_COARSE</name>
+</fn>
+<fn>
+  <name>BM_time_clock_getres_syscall</name>
+</fn>
+<fn>
   <name>BM_time_clock_gettime</name>
 </fn>
 <fn>
diff --git a/benchmarks/tests/interface_test.cpp b/benchmarks/tests/interface_test.cpp
index 677ba311e..3020c270e 100644
--- a/benchmarks/tests/interface_test.cpp
+++ b/benchmarks/tests/interface_test.cpp
@@ -435,6 +435,13 @@ TEST_F(SystemTests, all_benchmarks) {
     "BM_string_strstr/32768/0/0/iterations:1\n"
     "BM_string_strstr/65536/0/0/iterations:1\n"
     "BM_string_strstr/131072/0/0/iterations:1\n"
+    "BM_time_clock_getres/iterations:1\n"
+    "BM_time_clock_getres_BOOTTIME/iterations:1\n"
+    "BM_time_clock_getres_MONOTONIC_COARSE/iterations:1\n"
+    "BM_time_clock_getres_MONOTONIC_RAW/iterations:1\n"
+    "BM_time_clock_getres_REALTIME/iterations:1\n"
+    "BM_time_clock_getres_REALTIME_COARSE/iterations:1\n"
+    "BM_time_clock_getres_syscall/iterations:1\n"
     "BM_time_clock_gettime/iterations:1\n"
     "BM_time_clock_gettime_BOOTTIME/iterations:1\n"
     "BM_time_clock_gettime_MONOTONIC_COARSE/iterations:1\n"
diff --git a/benchmarks/time_benchmark.cpp b/benchmarks/time_benchmark.cpp
index f44c2802f..437dc7812 100644
--- a/benchmarks/time_benchmark.cpp
+++ b/benchmarks/time_benchmark.cpp
@@ -85,6 +85,69 @@ static void BM_time_clock_gettime_BOOTTIME(benchmark::State& state) {
 }
 BIONIC_BENCHMARK(BM_time_clock_gettime_BOOTTIME);
 
+static void BM_time_clock_getres(benchmark::State& state) {
+  // CLOCK_MONOTONIC is required supported in vdso
+  timespec t;
+  while (state.KeepRunning()) {
+    clock_getres(CLOCK_MONOTONIC, &t);
+  }
+}
+BIONIC_BENCHMARK(BM_time_clock_getres);
+
+static void BM_time_clock_getres_syscall(benchmark::State& state) {
+  // CLOCK_MONOTONIC is required supported in vdso
+  timespec t;
+  while (state.KeepRunning()) {
+    syscall(__NR_clock_getres, CLOCK_MONOTONIC, &t);
+  }
+}
+BIONIC_BENCHMARK(BM_time_clock_getres_syscall);
+
+static void BM_time_clock_getres_MONOTONIC_COARSE(benchmark::State& state) {
+  // CLOCK_MONOTONIC_COARSE is required supported in vdso
+  timespec t;
+  while (state.KeepRunning()) {
+    clock_getres(CLOCK_MONOTONIC_COARSE, &t);
+  }
+}
+BIONIC_BENCHMARK(BM_time_clock_getres_MONOTONIC_COARSE);
+
+static void BM_time_clock_getres_MONOTONIC_RAW(benchmark::State& state) {
+  // CLOCK_MONOTONIC_RAW is required supported in vdso
+  timespec t;
+  while (state.KeepRunning()) {
+    clock_getres(CLOCK_MONOTONIC_RAW, &t);
+  }
+}
+BIONIC_BENCHMARK(BM_time_clock_getres_MONOTONIC_RAW);
+
+static void BM_time_clock_getres_REALTIME(benchmark::State& state) {
+  // CLOCK_REALTIME is required supported in vdso
+  timespec t;
+  while (state.KeepRunning()) {
+    clock_getres(CLOCK_REALTIME, &t);
+  }
+}
+BIONIC_BENCHMARK(BM_time_clock_getres_REALTIME);
+
+static void BM_time_clock_getres_REALTIME_COARSE(benchmark::State& state) {
+  // CLOCK_REALTIME_COARSE is required supported in vdso
+  timespec t;
+  while (state.KeepRunning()) {
+    clock_getres(CLOCK_REALTIME_COARSE, &t);
+  }
+}
+BIONIC_BENCHMARK(BM_time_clock_getres_REALTIME_COARSE);
+
+static void BM_time_clock_getres_BOOTTIME(benchmark::State& state) {
+  // CLOCK_BOOTTIME is optionally supported in vdso
+  timespec t;
+  while (state.KeepRunning()) {
+    clock_getres(CLOCK_BOOTTIME, &t);
+  }
+}
+BIONIC_BENCHMARK(BM_time_clock_getres_BOOTTIME);
+
 static void BM_time_gettimeofday(benchmark::State& state) {
   timeval tv;
   while (state.KeepRunning()) {