Which performance monitoring tool should I choose for Oracle DataBase?

Question

Oracle

Good afternoon, advise a tool for monitoring the database. Of the options I look at the License Pack for EM, TOAD, Stats Pack, of course, also an interesting free option. Zabbix can be configured.

Answer 1

There is a remarkable utility ASHVIEW
At us at work all monitoring of productivity of Orakla became by means of it.

Answer 2

The best thing is a bunch of EM - go to see in real-time what-how is it in the bases. And zabbix, which monitors the alert log, "long" transactions in 24x7 mode, does banal health-checks like "select 1 from dual" and so on and sends SMS letters to responsible people.