Exciting times here at SolarWinds. We’re uniting our Self-Hosted and SaaS observability…
If you’re a programmer or computer scientist, you’re probably familiar with Big-O notation. It’s part of your foundational understanding of how complex a problem and/or algorithm is. But most explanations…
You can use the information in the SQL Server plan cache to research performance issues and investigate opportunities for performance improvement. In this three-part article series, we’ve examined several important…
The SQL Server plan cache can be a good tool to use in identifying current performance issues and in looking for new ways to improve performance. In this second part…
The SQL Server plan cache stores details on statements that are executed over time. Each time a statement executes, SQL Server will look inside the plan cache first to see…
This post was featured in our July 2015 anthology of most popular SolarWinds Database Performance Monitor (DPM) blog posts of all time. One of the nice things about Go is statically…
At SolarWinds® Database Performance Monitor we have a specific need to daemonize one of our Go applications, which must safely run detached from terminals, with a working directory that won’t…
We found ourselves wishing for a tutorial to complement the database/sql documentation in Go, so we wrote one and shared it on Github. Please send pull requests to contribute improvements!
If you’re looking at response time, what’s more useful: a mean or a percentile? Not sure? You probably know how to calculate the average or mean of a sample, but…
Statistical Process Control (SPC), or using numbers or data to study the characteristics of our process to make it behave the way we want it to behave, has been around…
At Velocity last week, I spoke about how we quantify abnormality in a system’s time-series metrics cheaply, in realtime, at high frequency. Note that this is not the same thing as…