How to check Solaris Server performance with SAR
June 1st, 2010
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Whether you’re unsatisfied with your Solaris system performance or just want to get the most out of what the machine is capable of, there is a cyclical process to improve it, which consists of determining where the processing slow-down is occuring (the bottleneck), fixing it, then repeating the process, until the most significant bottlenecks are reduced.
First, we should learn about some tools to help us monitor system performance. SAR (the system activity reporter) is the time-honored (and very cryptic) standard UNIX performance monitoring tool. How do we use SAR to see what the Sun server has been doing?