* Use multiple buffer pools. A creative strategy to take some of the strain off the main LRU chains is to implement the keep and recycle pools. All buffer pools can have their number of LRU chain latches increased. They also use the touch-count algorithm, and therefore have similar touch count instance parameters, such as _db_percent_hot_keep.

* Adjust touch count instance parameters. Table 6-3 summarizes the available touch count parameters. But be warned: the parameters have very small values, like 1 and 2. Therefore, even a switch from 1 to 2 is a relatively massive change that could easily have unintended consequences. I would consider adjusting the touch count parameters only as a last resort and after testing; otherwise, you'll just be guessing.

The percentage of buffer headers in the hot region. If you want more headers to be considered hot, increase this value. Decreasing this parameter will give buffer headers more time to be touched before encountering a server or database writer process.