-O0
Bubble sorting array of 30000 elements
7757 ms
-O3
Bubble sorting array of 30000 elements
2997 ms
-fprofile-generate
Bubble sorting array of 30000 elements
8260 ms
c1.sort.c: In function ‘main’:
c1.sort.c:49:1: warning: ‘sort_instrumented-c1.sort.gcda/#thfs4#home#test653#z2.chen#c5.fdo#c9.src9#sort_fdo-c1.sort.gcda’ profile count data file not found [-Wmissing-profile]
49 | }
| ^
Bubble sorting array of 30000 elements
2459 ms
2)
CMake Error at /usr/local/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
Could NOT find Protobuf (missing: Protobuf_LIBRARIES Protobuf_INCLUDE_DIR)
Call Stack (most recent call first):
/usr/local/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
/usr/local/share/cmake-3.22/Modules/FindProtobuf.cmake:650 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
CMakeLists.txt:10 (find_package)
CMakeLists.txt:841 (execute_perf_protobuf)
修改：
cmake -DENABLE_TOOL=GCOV -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED=On ../ -DProtobuf_LIBRARIES="/thfs4/software/protobuf/27.3-gcc11.1.0/lib" -DProtobuf_INCLUDE_DIR="/thfs4/software/protobuf/27.3-gcc11.1.0/include"
3）
仍然报错
-- Found Protobuf: /thfs4/software/protobuf/27.3-gcc11.1.0/lib (found version "5.29.0")
-- Building tool "GCOV" ...
CMake Error at CMakeLists.txt:22 (add_subdirectory):
The source directory
*autofdo-master/third_party/abseil
does not contain a CMakeLists.txt file.
Call Stack (most recent call first):
CMakeLists.txt:844 (build_gcov)
-- Configuring incomplete, errors occurred!
abseil是空的
