Hi community,
My customer did the following test on i.MX6DLSabreSD board with Yocto4.1.15_2.0.0.
Build Environment:
MACHINE = "imx6dlsabreauto"
DISTRO = "fsl-imx-wayland"
bitbake fsl-image-gui
1) Power On -> Start SD Boot
2) Kill the weston related process
# ps -aux|grep weston|grep -v "grep"|awk '{print $2}'|xargs kill -9
3)start weston with g2d
# openvt -s -- weston --use-g2d=1 --log=/dev/console
4) Dump GPU memory usage each process, check the GPU usage memory size with meminfo
# cat /sys/kernel/debug/gc/database | grep -E "Process|Current(\s+\w+){10}$"
# cat /sys/kernel/debug/gc/meminfo
6) Run weston-simple-egl
# weston-simple-egl -f &
7) Kill the weston-simple-egl
# sleep 2;killall weston-simple-egl
8) Dump GPU memory usage each process, check the GPU usage memory size with meminfo
My Question is:
In state of 4), Used memory is 5785600+4579840+48563200=58928640 Byte.
This value is same as Video memory of gvcPOOL_SYSYTEM.
i.e, 58928640 = 5785600 + 4579840 + 48563200
It's OK.
But in state of 8) , Used Video memory of meminfo is not same as sum of each used memory.
i.e, 93670912 != 5785600 + 4579840 + 48579584.
Would you let me know what this difference between state 4 and state 8) is ?
Best Regards,
Kanou
