手機 - Motorola XT897 - Sailfish OS 4.4.0.68 - 如何使用Perf找出User Application的效能瓶頸副程式

$ devel-su
# echo 0 > /proc/sys/kernel/kptr_restrict
# exit

$ top
    1303  1290 root     S     314m311.3   1  0.0 ./drastic /mnt/SDCARD/Roms/NDS/FF3.nds

$ cd
$ wget https://github.com/steward-fu/website/releases/download/xt897/perf.tar.gz
$ tar xvf perf.tar.gz
$ cd perf
$ LD_LIBRARY_PATH=lib ./perf record -p 1303
$ LD_LIBRARY_PATH=lib ./perf report