Basic usage of dstat
Get
io
if
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output in one command.
Introduction
System monitoring is a critical task for any system administrator, and Linux provides a variety of tools to help in this regard. One such tool is dstat - a versatile tool for monitoring system performance in real-time. dstat provides a wealth of information about the system’s CPU, memory, disk I/O, network, and other performance metrics. In this blog post, we will explore the usage of dstat in Linux.
Installation
To use dstat, you must first install it on your Linux system. Fortunately, it is available in most Linux distributions’ default repositories, and you can install it using your distribution’s package manager. For example, in Ubuntu, you can use the apt package manager to install it by running the following command in your terminal:
sudo apt-get install dstat
Usage
dstat -cdlmnpsy
dstat --top-mem --top-cpu --top-io
----total-usage---- -dsk/total- ---load-avg--- ------memory-usage----- -net/total- ---procs--- ----swap--- ---system--
usr sys idl wai stl| read writ| 1m 5m 15m | used free buf cach| recv send|run blk new| used free| int csw
| |2.01 0.94 0.74| 201M 149M 88M 321M| |2.0 0 | 0 0 |
11 6 78 0 11| 0 20k|1.97 0.94 0.74| 202M 149M 88M 321M| 82k 509 |1.5 0 1.0| 0 0 |1481 2400
8 5 82 0 5| 0 20k|1.93 0.94 0.74| 202M 149M 88M 321M| 88k 299 |1.0 0 1.0| 0 0 |1546 2626
20 6 52 1 38| 0 250k|1.93 0.94 0.74| 202M 149M 88M 321M| 103k 287 |2.0 0 1.0| 0 0 |1683 2071
24 6 36 0 60| 0 20k|1.93 0.94 0.74| 202M 149M 88M 321M| 93k 321 |3.0 0 1.0| 0 0 |1382 1262
8 5 80 0 10| 0 21k|1.93 0.94 0.74| 202M 149M 88M 321M| 68k 294 |1.0 0 1.0| 0 0 |1113 1811
11 5 77 0 16| 0 20k|1.77 0.93 0.73| 202M 149M 88M 321M| 68k 298 | 0 0 1.0| 0 0 |1161 1796
7 6 84 0 11| 0 20k|1.77 0.93 0.73| 202M 149M 88M 321M| 86k 286 |1.0 0 1.0| 0 0 |1270 2140
8 6 79 0 9| 0 64k|1.77 0.93 0.73| 202M 149M 88M 321M| 85k 296 |1.0 0 1.0| 0 0 |1544 2618
9 8 80 0 6| 0 20k|1.77 0.93 0.73| 202M 149M 88M 321M| 92k 576 |1.0 0 1.0| 0 0 |1709 2971
Metrics
dstat provides a wide range of metrics for monitoring system performance. Here are some of the most commonly used options:
c
CPU usaged
Disk I/Og
Page statisticsi
Network statisticsl
System loadm
Memory usagen
Network trafficp
Process statisticsr
Memory page ratess
Swap space usaget
Time/datey
System statistics
Conclusion
dstat is a powerful and versatile tool for monitoring system performance in Linux. It provides a wealth of information about the system’s CPU, memory, disk I/O, network, and other performance metrics. By using dstat, you can quickly identify performance bottlenecks and troubleshoot system issues. With the information provided in this blog post, you should be able to start using dstat to monitor your Linux system effectively.
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