Buffer Pool Tool is the proven and accepted industry standard software for tuning DB2 for OS/390 buffer pools. As the only product that can predict the effect of sizing and threshold changes, or moving objects into different or totally new pools - it remains the only way to remove the guesswork from pool tuning and guarantee that tuning changes will provide performance gains.

Attempting to tune without being able to predict is merely guessing about the outcome - and pool size increases don’t always, or necessarily, provide a performance improvement. Since the most important performance metric is the I/O rate/second, Buffer Pool Tool predicts this, predicts the System Hit Ratio, and predicts the working set sizes of all objects at different pool sizes, and/or in different pools.