Import benchmark-tools to main repository.

This has adapted for use with bazel from the original commit
a26e93769ebefd82593a43e22fb13a09717cfa6d.

In particular, the style has been made consistent with internal python style
guidelines, and the packages (including the main entrypoint) have been
refactored in order to allow bazel testing targets.

PiperOrigin-RevId: 283484433

5 files changed, 153 insertions, 0 deletions

diff --git a/benchmarks/workloads/syscall/BUILD b/benchmarks/workloads/syscall/BUILD
new file mode 100644
index 000000000..e1ff3059b
--- /dev/null
+++ b/benchmarks/workloads/syscall/BUILD
@@ -0,0 +1,36 @@
+load("//benchmarks:defs.bzl", "py_library", "py_test", "requirement")
+
+package(
+    default_visibility = ["//benchmarks:__subpackages__"],
+    licenses = ["notice"],
+)
+
+py_library(
+    name = "syscall",
+    srcs = ["__init__.py"],
+)
+
+py_test(
+    name = "syscall_test",
+    srcs = ["syscall_test.py"],
+    python_version = "PY3",
+    deps = [
+        ":syscall",
+        requirement("attrs", False),
+        requirement("atomicwrites", False),
+        requirement("more-itertools", False),
+        requirement("pathlib2", False),
+        requirement("pluggy", False),
+        requirement("py", False),
+        requirement("pytest", True),
+        requirement("six", False),
+    ],
+)
+
+filegroup(
+    name = "files",
+    srcs = [
+        "Dockerfile",
+        "syscall.c",
+    ],
+)
diff --git a/benchmarks/workloads/syscall/Dockerfile b/benchmarks/workloads/syscall/Dockerfile
new file mode 100644
index 000000000..a2088d953
--- /dev/null
+++ b/benchmarks/workloads/syscall/Dockerfile
@@ -0,0 +1,6 @@
+FROM gcc:latest
+COPY . /usr/src/syscall
+WORKDIR /usr/src/syscall
+RUN gcc -O2 -o syscall syscall.c
+ENV count 1000000
+CMD ["sh", "-c", "./syscall ${count}"]
diff --git a/benchmarks/workloads/syscall/__init__.py b/benchmarks/workloads/syscall/__init__.py
new file mode 100644
index 000000000..dc9028faa
--- /dev/null
+++ b/benchmarks/workloads/syscall/__init__.py
@@ -0,0 +1,29 @@
+# python3
+# Copyright 2019 Google LLC
+#
+# 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.
+"""Simple syscall test."""
+
+import re
+
+SAMPLE_DATA = "Called getpid syscall 1000000 times: 1117 ms, 500 ns each."
+
+
+# pylint: disable=unused-argument
+def sample(**kwargs) -> str:
+  return SAMPLE_DATA
+
+
+# pylint: disable=unused-argument
+def syscall_time_ns(data: str, **kwargs) -> int:
+  """Returns average system call time."""
+  return float(re.compile(r"(\d+)\sns each.").search(data).group(1))
diff --git a/benchmarks/workloads/syscall/syscall.c b/benchmarks/workloads/syscall/syscall.c
new file mode 100644
index 000000000..ded030397
--- /dev/null
+++ b/benchmarks/workloads/syscall/syscall.c
@@ -0,0 +1,55 @@
+// Copyright 2019 Google LLC
+//
+// 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.
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+// Short program that calls getpid() a number of times and outputs time
+// diference from the MONOTONIC clock.
+int main(int argc, char** argv) {
+  struct timespec start, stop;
+  long result;
+  char buf[80];
+
+  if (argc < 2) {
+    printf("Usage:./syscall NUM_TIMES_TO_CALL");
+    return 1;
+  }
+
+  if (clock_gettime(CLOCK_MONOTONIC, &start)) return 1;
+
+  long loops = atoi(argv[1]);
+  for (long i = 0; i < loops; i++) {
+    syscall(SYS_gettimeofday, 0, 0);
+  }
+
+  if (clock_gettime(CLOCK_MONOTONIC, &stop)) return 1;
+
+  if ((stop.tv_nsec - start.tv_nsec) < 0) {
+    result = (stop.tv_sec - start.tv_sec - 1) * 1000;
+    result += (stop.tv_nsec - start.tv_nsec + 1000000000) / (1000 * 1000);
+  } else {
+    result = (stop.tv_sec - start.tv_sec) * 1000;
+    result += (stop.tv_nsec - start.tv_nsec) / (1000 * 1000);
+  }
+
+  printf("Called getpid syscall %d times: %lu ms, %lu ns each.\n", loops,
+         result, result * 1000000 / loops);
+
+  return 0;
+}
diff --git a/benchmarks/workloads/syscall/syscall_test.py b/benchmarks/workloads/syscall/syscall_test.py
new file mode 100644
index 000000000..72f027de1
--- /dev/null
+++ b/benchmarks/workloads/syscall/syscall_test.py
@@ -0,0 +1,27 @@
+# python3
+# Copyright 2019 Google LLC
+#
+# 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.
+
+import sys
+
+import pytest
+
+from benchmarks.workloads import syscall
+
+
+def test_syscall_time_ns():
+  assert syscall.syscall_time_ns(syscall.sample()) == 500
+
+
+if __name__ == "__main__":
+  sys.exit(pytest.main([__file__]))