Improve Performance while Joining Small Local tables to Huge Remote Tables

When joining the small local tables to a huge remote table, using the below hint helps improve the performance of the query.

select /*+ driving_site(a) */ col1,col2  from small_table, big_table@dblink a
where
small_table.xyz= a. xyz;

With this hint, the join or sort is done on the remote db instead of pulling each record to join on the local db, resulting the query to finish quickly.