Faster way of upgrading postgresql to 10 from 9.5

Cross posting from stack-exchange
<https://dba.stackexchange.com/questions/191693/faster-way-of-upgrading-postgres-to-10-from-9-5>

*I am trying to test the migration of postgres to 10 from 9.5*

*On trying in a test DB of size 490 GB in one postgres node it is taking
about 18 mins. The command I used*

*sudo -H -u postgres /usr/lib/postgresql/10/bin/pg_upgrade \*
* -b /usr/lib/postgresql/9.5/bin \*
* -B /usr/lib/postgresql/10/bin \*
* -d /var/lib/postgresql/data/postgresql0 \*
* -D /var/lib/postgresql/10/data/postgresql0 \*
* -o ' -c config_file=/etc/postgresql/9.5/main/postgresql.conf' \*
* -O ' -c config_file=/etc/postgresql/10/main/postgresql.conf' -k *

*Is there any faster way of doing this?*