It depends on your setup and your workload, sometimes "innodb_file_per_table" is good for performance and some others it is not: http://umangg.blogspot.ru/2010/02/innodbfilepertable.html
I would recommend you to test it first in a testing system before applying on productions.
For information about advantages and disadvantages of "innodb_file_per_table" check out this link: http://dev.mysql.com/doc/refman/5.5/en/innodb-multiple-tablespaces.html
It depends!
It depends on your setup and your workload, sometimes "innodb_file_per_table" is good for performance and some others it is not:
http://umangg.blogspot.ru/2010/02/innodbfilepertable.html
I would recommend you to test it first in a testing system before applying on productions.
For information about advantages and disadvantages of "innodb_file_per_table" check out this link:
http://dev.mysql.com/doc/refman/5.5/en/innodb-multiple-tablespaces.html