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Diffstat (limited to 'system/dstat/README')
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diff --git a/system/dstat/README b/system/dstat/README new file mode 100644 index 0000000000000..985feaa6cabfd --- /dev/null +++ b/system/dstat/README @@ -0,0 +1,24 @@ +Dstat is a versatile replacement for vmstat, iostat, netstat, nfsstat and +ifstat. Dstat overcomes some of their limitations and adds some extra features, +more counters and flexibility. Dstat is handy for monitoring systems during +performance tuning tests, benchmarks or troubleshooting. + +Dstat allows you to view all of your system resources instantly, you can eg. +compare disk usage in combination with interrupts from your IDE controller, or +compare the network bandwidth numbers directly with the disk throughput (in +the same interval). + +Dstat gives you detailed selective information in columns and clearly indicates +in what magnitude and unit the output is displayed. Less confusion, less +mistakes. + +Dstat is unique in letting you aggregate block device throughput for a certain +diskset or networkset, ie. you can see the throughput for all the block devices +that make up a single filesystem or storage system. + +You can write your own dstat plugins to monitor whatever you like in just a few +minutes based on provided examples and a little bit of Python knowledge. + +Dstat's output by default is designed for being interpreted by humans in +real-time, however the new CSV output allows you to store CSV output in detail +to a file to be imported later into Gnumeric or Excel to generate graphs. |