Lab128 - Tools for Advanced Oracle^® Tuning and Monitoring.

If you

want to see what is happening on the Oracle server right now... or few hours before;
need to find which SQL statements were responsible for the recent spike of server activity and response time degradation, see their SQL text, what they were waiting for, etc;
want to know what this long running query is doing now;
want to get a feeling for how the server behaves in response to your SQL changes;
want to see ultimate internals over several hours or days without sacrificing time resolution;
want to create your own performance queries and define your own ratios;
are tired of the sluggish Java front end of some high-profile performance suites;
are bored by tedious, sub-gigabyte fatware installations;
are outraged about escalated cost of $oftware;

then please continue reading.