cmake PFM examples

google/filament third_party/dawn/third_party/google_benchmark/src/CMakeLists.txt :330 

find_package(PFM REQUIRED)

SmartKeyerror/reading-source-code-of-leveldb-1.23 third_party/benchmark/CMakeLists.txt :291 

find_package(PFM)

coinbase/cb-mpc vendors/google-benchmark/CMakeLists.txt :330 

find_package(PFM REQUIRED)

mariokonrad/marnav extern/benchmark-1.6.0/CMakeLists.txt :296 

find_package(PFM)

Lewuathe/mlir-hello thirdparty/llvm-project/third-party/benchmark/CMakeLists.txt :329 

find_package(PFM REQUIRED)