Sind die unten angegebene Speicherbedarfe normal?

pi@iobrokerpi:/ $ sudo du -h | sort -hr | more
du: cannot access './proc/1947/task/1947/fd/3': No such file or directory
du: cannot access './proc/1947/task/1947/fdinfo/3': No such file or directory
du: cannot access './proc/1947/fd/4': No such file or directory
du: cannot access './proc/1947/fdinfo/4': No such file or directory
13G     .
4.7G    ./home
4.4G    ./opt
4.3G    ./opt/iobroker
2.9G    ./opt/iobroker/iobroker-data
2.7G    ./home/iobroker/.npm
2.7G    ./home/iobroker
2.6G    ./home/iobroker/.npm/_cacache
2.5G    ./home/iobroker/.npm/_cacache/content-v2
2.4G    ./home/iobroker/.npm/_cacache/content-v2/sha512
1.4G    ./opt/iobroker/node_modules
1.2G    ./usr
1.1G    ./opt/iobroker/iobroker-data/history_cpy
1.1G    ./opt/iobroker/iobroker-data/history
693M    ./usr/lib

LG
Nils