Advisor provides the following information in addition to the standard reporting of performance metrics for UNIX and Linux servers.

• Average CPU utilization compared with threshold (warning and alarm) values
• Proportion of time when the CPU utilization is higher than recommended thresholds
• Variability of CPU usage over the period of analysis
• Users and commands contributing most to the CPU utilization
• Correlation between user activity and system activity (I/O rates, CPU Waiting for I/O)
• Paging rates compared with thresholds
• Swapping rates compared with thresholds
• Proportion of time when paging or swapping rates are too high
• Read and Write Cache Hit ratios compared with thresholds
• Proportion of time when Cache Hit ratios are less than good
• Identification of busiest I/O devices, and analysis of their performance in terms of response time and queuing time
• Analysis of CPU time spent waiting for I/O completion
• Analysis of System Uptime and Outages

UNIX Performance Report