I know I’ve mentioned how much I love the sysstat package before. I use sar regularly to help with performance diagnostics (Analyzing Linux System Performance And Finding Bottle Necks, CPU Performance Analysis In Linux, Baseline Analysis Is Important, CPU Performance Analysis In Linux Revisited). I wrote this little Nagios plugin to collect the performance metrics that sar […]
Tag Archives: sysstat
Yesterday I wrote about CPU Performance Analysis in Linux. I explained how to tell if you are experiencing a CPU bottleneck. This is just a quick followup to show the effect of adding more cpu power.
A while back I wrote a post Analyzing Linux System Performance and Finding Bottlenecks. I did’t really give a good explanation of determining if you are CPU bound or not so I am writing this post to clear that up.
System performance analytics seems to be a frequent question on forums and mailing lists. Finding out why something is slow is generally nontrivial as there are many factors to consider. I have found the sysstat package to be an invaluable tool when looking at system performance. Specifically the command sar gives a wealth of information.