mkdir build && cd build
cmake -DCMAKE_CXX_COMPILER="%VCINSTALLDIR%/bin/cl.exe" -DCMAKE_CXX_INCLUDE_WHAT_YOU_USE="/mnt/include-what-you-use/build/bin/include-what-you-use" -G Ninja ..
export IWYU_BINARY=/mnt/include-what-you-use/build/bin/include-what-you-use
python3 /mnt/include-what-you-use/iwyu_tool.py -j 8 -p .> iwyu.out
python3 /mnt/include-what-you-use/fix_includes.py -b --comments --update_comments < iwyu.out
clang -pg -lstdc++ -o ./cmake/test ./cmake/cmake.cpp -lc_p
./cmake/test
gprof -b -qfunc1 fic_untilTool_test gmon.out>gmon.txt
gprof -b test gmon.out -Ffunc1 -efuncTest >gmon.txt
kprof -f ./test
gprof ./test | gprof2dot.py | xdot
-b 不显示描述
-A 显示函数源码
-pa 只打印a的flat profile,-Pa只屏蔽a
-qa 只打印a的call,-Qa只屏蔽a
sprof ./module.so Perf.profile -p >log.txt
time ./program
gcov ./summer-proj覆盖测试
gprof ./Perf | gprof2dot.py | dot -Tpng -o output.png
cd gprof2dot && cat ../bin/gmon.txt | python3 gprof2dot.py -n0 -e0 | dot -Tpdf -o output.pdf
编译开关-ftest-coverage -fprofile-arcs
改run.sh 换行类型
apt-get install ./libimagequant0_2.12.2-1.1_amd64.deb
apt-get install ./libimagequant-dev_2.12.2-1.1_amd64.deb
dpkg-deb -c quantum6.deb
泄露分析,编译链接-g
valgrind --tool=memcheck --leak-check=full --show-leak-kinds=all ./bin/Perf
valgrind --tool=callgrind ../bin/Perf
python gprof2dot.py -f callgrind -n10 -s callgrind.out.31113 | dot -Tpng -o valgrind.png
pprof安装
export CPUPROFILE_FREQUENCY=1
go install github.com/google/pprof@latest
pprof --text ./Perf test_capture.prof > profile.txt
pprof --callgrind ./Perf test_capture.prof > callgrind.res
pprof ./Perf test_capture.prof --web
pprof ./Perf test_capture.prof --pdf > prof.pdf
查看-pg是否生效
-lc_p
nm libobjectmodule.so | grep mcount
ldd ./Perf | grep libc
apt-get install libpopt-dev
apt-get install libiberty-dev
apt-get install libfdt-dev
#Recommended profilers¶
VerySleepy (Windows only)
HotSpot (Linux only)
Xcode Instruments (macOS only)
