HP-UX 11i Tuning and Performance

8.14. Tuning Memory Bottlenecks

There are several bottlenecks that can occur in a computer system due to the memory subsystem. In particular, there can be memory capacity bottlenecks where not enough memory is available for use, there can be memory latency and bandwidth issues, and there can be memory allocation problems such as not allocating large enough pages, which can cause memory bottlenecks. There are several different ways of tuning these memory bottlenecks:

• Hardware solutions

• Software solutions

• Application optimization

• Adjusting memory-related operating system tuneable parameters

8.14.1. Hardware Solutions

For capacity-based memory bottlenecks, the simplest hardware solution may be to increase the amount of physical memory. Another strategy ...