Dstat is a versatile replacement for vmstat, nfsstat, iostat, netstat and ifstat.

During my work with computers, I like to check the usage of system resources in my network. Sometimes a running process takes up too much CPU load, or the disk I/O goes too high. To get a clean picture of how much resources are being used by a client, I used ifstat, top(1) and iostat(1). Since I have found out about dstat, I can cleanly check out all the system resources used by my computers.

Use Dstat and Gnuplot to monitor performance, then turn that information into neat-looking graphs that anyone, even your manager, can understand…

I want to write about Cassandra performance tuning, but first I need to cover some basics: how to use vmstat, iostat, and top to understand what part of your system is the bottleneck -- not just for Cassandra but for any system.

In the first part of this piece I introduced zenity : the handy tool for providing GUI interaction with your shell scripts. In this second part I'm going to delve a little deeper into the type of things you can do with this versatile tool.

Article about vmstat tool, to check the memory status in a Linux system, explaining the terms that vmstat uses, and also how to solve some memory problems, (only some hints)

Each system-wide Linux performance tool provides different ways to extract similar statistics. Although no tool displays all the statistics, some of the tools display the same statistics.

I spend a lot of time looking at other people’s computers, and I see Audacity installed on a lot of them. Not many software programs deserve the adverb “versatile”, but Audacity is one of them. It is the Swiss Army knife of audio applications.

If you have the VLC media player (VLC) installed on your computer, you probably already know how versatile this tool is: it can handle virtually any media file, it can play network streams like Internet radio stations, and it can stream media contents across the network.