Buffer Cache Usage
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SarCheck can graph the actual size of the dynamic buffer cache as it changes throughout the day. This helps you to understand how changes to the dbc_min_pct and dbc_max_pct can help you.

On many HP 9000 systems, tuning the buffer cache can be the quickest way to improve performance and SarCheck makes it easy.

 

At least 3.4 percent of the system's memory, or 2.2 megabytes, was always unused during sar sampling. This indicates that while the system is not in need of memory, there isn't an unusually large quantity of physical memory that remains unused. Please note that this value is not a true high-water mark of memory usage and only reflects what was happening when sar sampled system activity.

The average page scanning rate was 0.88 per second. Page scanning peaked at 9.10 per second from 08:20:00 to 08:40:00. Peak resource utilization statistics can be used to help understand performance problems. If performance was worst during the period of high scanning activity, then a performance bottleneck may be caused by heavy I/O or the lack of memory available.