I have been talking about the complexity of resolving performance issues in modern data centers. I’ve particularly been talking about how it is a multi-dimensional problem. Also, that virtualization significantly increases the number of dimensions for performance troubleshooting. My report of having been forced to use Excel to coordinate brought some interesting responses. It is, indeed, a very poor tool for consolidating performance data.
I have also written in other places about management tools that are focused on the data they collect, rather than helping to resolve issues. What I really like about PerfStack is the ability to use the vast amount of data in the various SolarWinds tools to identify the source of performance problems.
The central idea in PerfStack is to gain insights across all of the data that is gathered by various SolarWinds products. Importantly, PerfStack allows the creation of ad hoc data collections of performance data. Performance graphs for multiple objects and multiple resource types can be stacked together to identify correlation. My favorite part was adding multiple different performance counters from the different layers of infrastructure to a single screen. This is where I had the Excel flashback, only here the consolidation is done programmatically. No need for me to make sure the time series match up. I loved that the performance graphs were re-drawing in real- time as new counters were added. Even better was that the re-draw was fast enough that counters could be added on the off chance that they were relevant. When they are not relevant, they can simply be removed. The hours I wasted building Excel graphs translate into minutes of building a PerfStack workspace.
I have written elsewhere about systems management tools that get too caught up in the cool data they gather. These tools typically have fixed dashboards that give pretty overviews. They often cram as much data as possible into one screen. What I tend to find is that these tools are inflexible about the way the data is combined. The result is a dashboard that is good at showing that everything is, or is not, healthy but does not help a lot with resolving problems. The dynamic nature of the PerfStack workspace lends itself to getting insight out of the data, and helping identify the root cause of problems. Being able to quickly assemble the data on the load on a hypervisor and the VM operating system, as well the application statistics speeds troubleshooting. The ability to quickly add performance counters for the other application dependencies lets you pinpoint the cause of the issue quickly. It may be that the root cause is a domain controller that is overloading its CPU, while the symptom is a SharePoint server that is unresponsive.
PerfStack allows very rapid discovery of issue causes. The value of PerfStack will vastly increase as it is rolled out across the entire SolarWinds product suite.