From ee7f2eb027c272427519b8a9d02b62a7411bf344 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Mon, 25 Aug 2025 15:21:43 +0100
Subject: Add an ingestor performance test

Generates a random long file of random data and then ingests it.
---
 test/perf-ingest.cpp | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 test/perf-ingest.cpp

(limited to 'test/perf-ingest.cpp')

diff --git a/test/perf-ingest.cpp b/test/perf-ingest.cpp
new file mode 100644
index 0000000..6de3dae
--- /dev/null
+++ b/test/perf-ingest.cpp
@@ -0,0 +1,115 @@
+#include <benchmark/benchmark.h>
+#include <filesystem>
+
+#include "test-util.hpp"
+#include <c++11Helpers.h>
+#include <fstream>
+#include <random>
+
+#include <ingestor.hpp>
+
+namespace {
+	const std::filesystem::path TMP_LOG = std::format("/tmp/webstat-perf-{}.log", getpid());
+
+	const struct LogFile {
+		SPECIAL_MEMBERS_DELETE(LogFile);
+
+		LogFile()
+		{
+			std::random_device randDevice;
+			std::mt19937 generator(randDevice());
+
+			struct Strings {
+				std::vector<std::string> vhosts;
+				std::vector<std::string> ips;
+				std::vector<std::string> paths;
+				std::vector<std::string> qss;
+				std::vector<std::string> refs;
+				std::vector<std::string> uas;
+			};
+
+			Strings strings;
+
+			auto genIp = [&generator]() {
+				static std::uniform_int_distribution<unsigned short> octetDistrib {
+						0, std::numeric_limits<uint8_t>::max()};
+				return std::format("{}.{}.{}.{}", octetDistrib(generator), octetDistrib(generator),
+						octetDistrib(generator), octetDistrib(generator)
+
+				);
+			};
+			auto getStrGen = [&generator](size_t minLen, size_t maxLen) {
+				return [minLen, maxLen, &generator]() {
+					std::uniform_int_distribution<char> charDistrib {'a', 'z'};
+					std::uniform_int_distribution<size_t> lenDistrib {minLen, maxLen};
+					std::string out;
+					std::generate_n(std::back_inserter(out), lenDistrib(generator), [&generator, &charDistrib]() {
+						return charDistrib(generator);
+					});
+					return out;
+				};
+			};
+
+			for (auto & [out, count, stringGenerator] : std::initializer_list<
+						 std::tuple<std::vector<std::string> &, size_t, std::function<std::string()>>> {
+						 {strings.vhosts, 4, getStrGen(6, 20)},
+						 {strings.ips, 4, genIp},
+						 {strings.paths, 100, getStrGen(1, 50)},
+						 {strings.qss, 100, getStrGen(1, 50)},
+						 {strings.refs, 50, getStrGen(10, 50)},
+						 {strings.uas, 10, getStrGen(50, 70)},
+				 }) {
+				std::generate_n(std::back_inserter(out), count, stringGenerator);
+			}
+			strings.qss.emplace_back("");
+			strings.refs.emplace_back("-");
+			strings.uas.emplace_back("-");
+
+			constexpr size_t MISC_MIN = 1000;
+			constexpr size_t MISC_MAX = 10000;
+			constexpr uint64_t TICK_START = 1755710158296508;
+			std::uniform_int_distribution<size_t> tickDistrib {MISC_MIN, MISC_MAX};
+			std::uniform_int_distribution<size_t> sizeDistrib {MISC_MIN, MISC_MAX};
+			std::uniform_int_distribution<size_t> durationDistrib {MISC_MIN, MISC_MAX};
+			uint64_t tick = TICK_START;
+			auto randomString = [&generator](auto & stringSet) {
+				std::uniform_int_distribution<size_t> choiceDistrib {0, stringSet.size() - 1};
+				return stringSet[choiceDistrib(generator)];
+			};
+
+			std::ofstream logfile {TMP_LOG};
+			constexpr size_t LOG_LINES = 10000;
+			for (size_t line = 0; line < LOG_LINES; ++line) {
+				std::println(logfile, R"LOG({} {} {} GET "/{}" "?{}" HTTP/1.1 200 {} {} "{}" "{}")LOG",
+						randomString(strings.vhosts), randomString(strings.ips), tick += tickDistrib(generator),
+						randomString(strings.paths), randomString(strings.qss), sizeDistrib(generator),
+						durationDistrib(generator), randomString(strings.refs), randomString(strings.uas));
+			}
+		}
+
+		~LogFile()
+		{
+			std::filesystem::remove(TMP_LOG);
+		}
+	} LOG_FILE;
+
+	void
+	setup(const benchmark::State &)
+	{
+		static const WebStat::MockDB mockdb;
+	}
+
+	void
+	doIngestFile(benchmark::State & state)
+	{
+		WebStat::Ingestor ingestor {"perf-hostname", DB::MockDatabase::openConnectionTo("webstat")};
+		for (auto loop : state) {
+			WebStat::FilePtr logFile {fopen(TMP_LOG.c_str(), "r")};
+			ingestor.ingestLog(logFile.get());
+		}
+	}
+}
+
+BENCHMARK(doIngestFile)->Setup(setup);
+
+BENCHMARK_MAIN();
-- 
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