add benchmark for DltFileIndexer::run

Author: RuiMarioCosta

qdlt/qdltfile.cpp

@@ -132,7 +132,7 @@ int QDltFile::sizeFilter() const
 
 bool QDltFile::open(QString _filename, bool append)
 {
-    qDebug() << "Open file" << _filename << "started";
+    // qDebug() << "Open file" << _filename << "started";
 
     /* check if file is already opened */
     if(!append)

src/CMakeLists.txt

@@ -18,8 +18,7 @@ else()
     QT5_ADD_RESOURCES(UI_RESOURCES_RCC resources/resource.qrc)
 endif()
 
-add_executable(dlt-viewer
-    main.cpp
+add_library(dlt_common
     mainwindow.cpp
     project.cpp
     ecudialog.cpp
@@ -55,13 +54,23 @@ add_executable(dlt-viewer
     ecutree.cpp
 )
 
-target_link_libraries(dlt-viewer
+target_link_libraries(dlt_common
     qdlt
     ${QT_PREFIX}::Core
     ${QT_PREFIX}::Network
     ${QT_PREFIX}::Widgets
     ${QT_PREFIX}::SerialPort)
 
+target_include_directories(dlt_common
+  PUBLIC
+    .
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/dlt_common_autogen/include>
+    $<INSTALL_INTERFACE:include>
+)
+
+add_executable(dlt-viewer main.cpp)
+target_link_libraries(dlt-viewer PRIVATE dlt_common)
+
 if(CMAKE_COMPILER_IS_GNUCXX)
     # https://stackoverflow.com/questions/45329372/ubuntu-recognizes-executable-as-shared-library-and-wont-run-it-by-clicking
     # https://forum.juce.com/t/cmake-executable-build-shows-up-as-shared-library-on-linux-mint/45503/6
@@ -108,3 +117,13 @@ install(DIRECTORY
     COMPONENT dlt_viewer)
 
 include(cmake/${CMAKE_SYSTEM_NAME}.cmake OPTIONAL)
+
+find_package(GTest)
+# configure unit tests only if gtest found on the system
+if (GTest_FOUND)
+  message(STATUS "Tests enabled")
+  enable_testing()
+  add_subdirectory(tests)
+endif()
+
+add_subdirectory(benchmark)

src/benchmark/CMakeLists.txt

@@ -0,0 +1,6 @@
+find_package(benchmark REQUIRED)
+
+add_executable(bench_dltfileindexer bench_dltfileindexer.cpp)
+target_link_libraries(bench_dltfileindexer PRIVATE benchmark::benchmark dlt_common qdlt)
+
+file(COPY testfile.dlt DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/ )

src/benchmark/bench_dltfileindexer.cpp

@@ -0,0 +1,26 @@
+#include "dltfileindexer.h"
+#include "qdltfile.h"
+
+#include <benchmark/benchmark.h>
+
+#include <filesystem>
+
+static void DoSetup(const benchmark::State& /*state*/) { std::filesystem::remove_all("index/"); }
+
+
+static void BN_dltfileindexer_run(benchmark::State& state) {
+    QString filename = "testfile.dlt";
+    for (auto _ : state) {
+        QDltFile dltFile{};
+        dltFile.open(filename);
+        QDltPluginManager pluginManager;
+        pluginManager.loadPlugins(QString{});
+
+        DltFileIndexer fileIndexer{&dltFile, &pluginManager, nullptr, nullptr};
+        fileIndexer.setFilterCacheEnabled(true);
+        fileIndexer.run();
+    }
+}
+BENCHMARK(BN_dltfileindexer_run)->Setup(DoSetup);
+
+BENCHMARK_MAIN();

src/benchmark/testfile.dlt

@@ -2346,7 +2346,7 @@ void MainWindow::applySettings()
     if(dltIndexer)
         dltIndexer->setFilterCacheEnabled(settings->filterCache);
 
-    // set DLT message chache size
+    // set DLT message cache size
     qfile.setCacheSize(settings->msgCacheSize);
 
     // set DLTv2 Support