added spdlog::get(..) benchmarks

gabime · Mar 16, 2024 · 232aace · 232aace
1 parent 50d7f59
commit 232aace
Showing 1 changed file with 73 additions and 15 deletions.
diff --git a/bench/latency.cpp b/bench/latency.cpp
@@ -17,31 +17,32 @@
 
 void bench_c_string(benchmark::State &state, std::shared_ptr<spdlog::logger> logger) {
     const char *msg =
-        "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum pharetra metus cursus "
-        "lacus placerat congue. Nulla egestas, mauris a tincidunt tempus, enim lectus volutpat mi, "
-        "eu consequat sem "
-        "libero nec massa. In dapibus ipsum a diam rhoncus gravida. Etiam non dapibus eros. Donec "
-        "fringilla dui sed "
-        "augue pretium, nec scelerisque est maximus. Nullam convallis, sem nec blandit maximus, "
-        "nisi turpis ornare "
-        "nisl, sit amet volutpat neque massa eu odio. Maecenas malesuada quam ex, posuere congue "
-        "nibh turpis duis.";
-
-    for (auto _ : state) {
+            "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum pharetra metus cursus "
+            "lacus placerat congue. Nulla egestas, mauris a tincidunt tempus, enim lectus volutpat mi, "
+            "eu consequat sem "
+            "libero nec massa. In dapibus ipsum a diam rhoncus gravida. Etiam non dapibus eros. Donec "
+            "fringilla dui sed "
+            "augue pretium, nec scelerisque est maximus. Nullam convallis, sem nec blandit maximus, "
+            "nisi turpis ornare "
+            "nisl, sit amet volutpat neque massa eu odio. Maecenas malesuada quam ex, posuere congue "
+            "nibh turpis duis.";
+
+    for (auto _: state) {
         logger->info(msg);
     }
 }
 
 void bench_logger(benchmark::State &state, std::shared_ptr<spdlog::logger> logger) {
     int i = 0;
-    for (auto _ : state) {
+    for (auto _: state) {
         logger->info("Hello logger: msg number {}...............", ++i);
     }
 }
+
 void bench_global_logger(benchmark::State &state, std::shared_ptr<spdlog::logger> logger) {
     spdlog::set_default_logger(std::move(logger));
     int i = 0;
-    for (auto _ : state) {
+    for (auto _: state) {
         spdlog::info("Hello logger: msg number {}...............", ++i);
     }
 }
@@ -50,7 +51,7 @@ void bench_disabled_macro(benchmark::State &state, std::shared_ptr<spdlog::logge
     int i = 0;
     benchmark::DoNotOptimize(i);       // prevent unused warnings
     benchmark::DoNotOptimize(logger);  // prevent unused warnings
-    for (auto _ : state) {
+    for (auto _: state) {
         SPDLOG_LOGGER_DEBUG(logger, "Hello logger: msg number {}...............", i++);
     }
 }
@@ -60,12 +61,13 @@ void bench_disabled_macro_global_logger(benchmark::State &state, std::shared_ptr
     int i = 0;
     benchmark::DoNotOptimize(i);       // prevent unused warnings
     benchmark::DoNotOptimize(logger);  // prevent unused warnings
-    for (auto _ : state) {
+    for (auto _: state) {
         SPDLOG_DEBUG("Hello logger: msg number {}...............", i++);
     }
 }
 
 #ifdef __linux__
+
 void bench_dev_null() {
     auto dev_null_st = spdlog::basic_logger_st("/dev/null_st", "/dev/null");
     benchmark::RegisterBenchmark("/dev/null_st", bench_logger, std::move(dev_null_st))->UseRealTime();
@@ -75,8 +77,58 @@ void bench_dev_null() {
     benchmark::RegisterBenchmark("/dev/null_mt", bench_logger, std::move(dev_null_mt))->UseRealTime();
     spdlog::drop("/dev/null_mt");
 }
+
 #endif  // __linux__
 
+
+// test spdlog::get() performance
+// for this test we create multiple null loggers and then call spdlog::get() on one of them multiple times
+// create multiple null loggers and return name of the one to test
+static std::string prepare_null_loggers() {
+    spdlog::drop_all();
+    const std::string some_logger_name = "Some logger name";
+    const int null_logger_count = 10;
+    for (int i = 0; i < null_logger_count; i++) {
+        spdlog::create<spdlog::sinks::null_sink_mt>(some_logger_name + std::to_string(i));
+    }
+    return some_logger_name + std::to_string(null_logger_count / 2);
+}
+
+// benchmark spdlog::get() with const char*
+void bench_get_logger_const_char(benchmark::State &state) {
+    std::string str_name = prepare_null_loggers();
+    const char* name = str_name.c_str();
+    for (auto _: state) {
+        auto rv = spdlog::get(name);
+        if (rv == nullptr) {
+            state.SkipWithError("get() returned nullptr");
+        }
+    }
+}
+
+// benchmark spdlog::get() with std::string_view
+void bench_get_logger_sv(benchmark::State &state) {
+    auto str_name = prepare_null_loggers();
+    auto sv_name = std::string_view{str_name};
+    for (auto _: state) {
+        auto rv = spdlog::get(sv_name);
+        if (rv == nullptr) {
+            state.SkipWithError("get() returned nullptr");
+        }
+    }
+}
+
+// benchmark spdlog::get() with std::string
+void bench_get_logger_string(benchmark::State &state) {
+    auto str_name = prepare_null_loggers();
+    for (auto _: state) {
+        auto rv = spdlog::get(str_name);
+        if (rv == nullptr) {
+            state.SkipWithError("get() returned nullptr");
+        }
+    }
+}
+
 int main(int argc, char *argv[]) {
     using spdlog::sinks::null_sink_mt;
     using spdlog::sinks::null_sink_st;
@@ -148,6 +200,12 @@ int main(int argc, char *argv[]) {
     auto async_logger = std::make_shared<spdlog::async_logger>("async_logger", std::make_shared<null_sink_mt>(), std::move(tp),
                                                                spdlog::async_overflow_policy::overrun_oldest);
     benchmark::RegisterBenchmark("async_logger", bench_logger, async_logger)->Threads(n_threads)->UseRealTime();
+
+
+    benchmark::RegisterBenchmark("spdlog::get(const char* name)", bench_get_logger_const_char);
+    benchmark::RegisterBenchmark("spdlog::get(std::string_view name)", bench_get_logger_sv);
+    benchmark::RegisterBenchmark("spdlog::get(const std::string &name)", bench_get_logger_string);
+
     benchmark::Initialize(&argc, argv);
     benchmark::RunSpecifiedBenchmarks();
 }