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