From b4c6344ca96e8b180760dc96ec2ba0563d03fee7 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Tue, 19 Apr 2022 00:49:51 +0100
Subject: Add a basic perf test setup for key functions

---
 netfs/unittests/Jamfile.jam  |   8 +++
 netfs/unittests/testPerf.cpp | 133 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 141 insertions(+)
 create mode 100644 netfs/unittests/testPerf.cpp

diff --git a/netfs/unittests/Jamfile.jam b/netfs/unittests/Jamfile.jam
index 736c370..53d600f 100644
--- a/netfs/unittests/Jamfile.jam
+++ b/netfs/unittests/Jamfile.jam
@@ -1,4 +1,5 @@
 lib boost_utf : : <name>boost_unit_test_framework ;
+lib benchmark ;
 
 path-constant leak-san-suppressions : leak-suppressions.txt ;
 path-constant thread-san-suppressions : thread-suppressions.txt ;
@@ -99,3 +100,10 @@ run testDaemon.cpp ../daemon//modeCheck
 	<dependency>testCore
 	;
 
+explicit testPerf ;
+run testPerf.cpp
+	: : :
+	<library>benchmark
+	<library>testMocks
+	;
+
diff --git a/netfs/unittests/testPerf.cpp b/netfs/unittests/testPerf.cpp
new file mode 100644
index 0000000..eff3ae4
--- /dev/null
+++ b/netfs/unittests/testPerf.cpp
@@ -0,0 +1,133 @@
+#include "mockDaemon.h"
+#include "mockFuse.h"
+#include <algorithm>
+#include <benchmark/benchmark.h>
+#include <climits>
+#include <compileTimeFormatter.h>
+#include <definedDirs.h>
+#include <filesystem>
+#include <fuseFiles.h>
+
+const std::filesystem::path tmpDir {getenv("XDG_RUNTIME_DIR") / selfExe.filename()};
+const std::string testEndpoint("tcp -h localhost -p 12016");
+const std::string testUri("tcp://localhost:12016/testvol");
+
+class Core {
+public:
+	Core() :
+		daemonHost(testEndpoint,
+				{"--Ice.ThreadPool.Client.Size=4", "--Ice.ThreadPool.Client.SizeMax=20",
+						"--Ice.ThreadPool.Server.Size=5", "--Ice.ThreadPool.Server.SizeMax=20",
+						"--NetFSD.ConfigPath=" + (rootDir / "defaultDaemon.xml").string()})
+	{
+	}
+
+protected:
+	MockDaemonHost daemonHost;
+
+public:
+};
+
+Core globalCore;
+
+class Fuse : public FuseMockHost, public benchmark::Fixture {
+public:
+	Fuse() :
+		FuseMockHost(testEndpoint,
+				{"--Ice.ThreadPool.Client.Size=6", "--Ice.ThreadPool.Client.SizeMax=20",
+						(rootDir / "defaultFuse.xml").string() + ":testvol", (tmpDir / "test").string()})
+	{
+	}
+
+	static int
+	nameListDiscard(void *, const char *, const struct stat *, off_t, fuse_fill_dir_flags)
+	{
+		return 0;
+	}
+};
+
+BENCHMARK_F(Fuse, statfs_root)(benchmark::State & state)
+{
+	struct statvfs st { };
+	for (auto _ : state) {
+		benchmark::DoNotOptimize(fuse->statfs("/", &st));
+	}
+}
+
+BENCHMARK_F(Fuse, getattr_root)(benchmark::State & state)
+{
+	struct stat st { };
+	for (auto _ : state) {
+		benchmark::DoNotOptimize(fuse->getattr("/", &st, nullptr));
+	}
+}
+
+BENCHMARK_F(Fuse, openclose_dir_root)(benchmark::State & state)
+{
+	for (auto _ : state) {
+		fuse_file_info fi {};
+		benchmark::DoNotOptimize(fuse->opendir("/", &fi));
+		benchmark::DoNotOptimize(fuse->releasedir("/", &fi));
+	}
+}
+
+AdHocFormatter(numbered_filename, "/files/test-%?.txt");
+AdHocFormatter(numbered_dir, "/dirs/test-%?");
+
+BENCHMARK_F(Fuse, create_files)(benchmark::State & state)
+{
+	fuse->mkdir("/files", 0700);
+	unsigned int n {};
+	for (auto _ : state) {
+		fuse_file_info fi {};
+		const std::string filename {numbered_filename::get(n++)};
+		benchmark::DoNotOptimize(fuse->create(filename.c_str(), 0600, &fi));
+		benchmark::DoNotOptimize(fuse->release(filename.c_str(), &fi));
+	}
+}
+
+BENCHMARK_F(Fuse, create_dirs)(benchmark::State & state)
+{
+	fuse->mkdir("/dirs", 0700);
+	unsigned int n {};
+	for (auto _ : state) {
+		const std::string dirname {numbered_dir::get(n++)};
+		benchmark::DoNotOptimize(fuse->mkdir(dirname.c_str(), 0600));
+	}
+}
+
+BENCHMARK_F(Fuse, ls_files)(benchmark::State & state)
+{
+	fuse_file_info fi {};
+	fuse->opendir("/files", &fi);
+	for (auto _ : state) {
+		benchmark::DoNotOptimize(fuse->readdir("/files", nullptr, nameListDiscard, 0, &fi, FUSE_READDIR_PLUS));
+	}
+	fuse->releasedir("/", &fi);
+}
+
+BENCHMARK_F(Fuse, write_file)(benchmark::State & state)
+{
+	fuse_file_info fi {};
+	fuse->open("/files/test-0.txt", &fi);
+	std::array<char, 1024> data {};
+	off_t off {};
+	for (auto _ : state) {
+		benchmark::DoNotOptimize(fuse->write("/files/test-0.txt", data.data(), data.size(), off, &fi));
+		off += data.size();
+	}
+	fuse->release("/", &fi);
+}
+
+BENCHMARK_F(Fuse, read_file)(benchmark::State & state)
+{
+	fuse_file_info fi {};
+	fuse->open("/files/test-0.txt", &fi);
+	std::array<char, 1024> data {};
+	for (auto _ : state) {
+		benchmark::DoNotOptimize(fuse->read("/files/test-0.txt", data.data(), data.size(), 0, &fi));
+	}
+	fuse->release("/", &fi);
+}
+
+BENCHMARK_MAIN();
-- 
cgit v1.2.3