Tente usar o argumento -o nolookups
. Veja a página de manual para detalhes .
18 segundos sem argumentos:
time journalctl --since 12:00 --until 12:10 | ccze > /dev/null
journalctl --since 12:00 --until 12:10 0.01s user 0.01s system 0% cpu 10.686 total
ccze > /dev/null 12.51s user 1.27s system 76% cpu 18.041 total
0,15 segundos com -o nolookups
:
time journalctl --since 12:00 --until 12:10 | ccze -o nolookups > /dev/null
journalctl --since 12:00 --until 12:10 0.01s user 0.01s system 24% cpu 0.091 total
ccze -o nolookups > /dev/null 0.13s user 0.01s system 95% cpu 0.145 total