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<code>[[wikipedia:vmstat|vmstat]]</code><ref>http://man7.org/linux/man-pages/man8/vmstat.8.html</ref> ([[virtual memory]] statistics) is a [[command]] that displays information about [[operating system]] [[memory]], [[processes]], [[interrupts]], [[paging]] and [[I/O]] block. <code>vmstat</code> command is available at least in [[FreeBSD]], [[Linux]] or [[Solaris]] and it is included in <code>[[procps]]</code> package in Debian and Ubuntu.
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<code>[[wikipedia:vmstat|vmstat]]</code><ref>http://man7.org/linux/man-pages/man8/vmstat.8.html</ref> (virtual memory statistics) is a [[command]] that displays information about [[operating system]] [[memory]], [[processes]], [[interrupts]], [[paging]] and [[I/O]] block. <code>vmstat</code> command is available at least in [[FreeBSD]], [[Linux]] or [[Solaris]].
  
  
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  0  0      0 127220  94904 530056    0    0    0  100  43  109  2  0 98  0  0
 
  0  0      0 127220  94904 530056    0    0    0  100  43  109  2  0 98  0  0
 
  0  0      0 127220  94904 530056    0    0    0    0  39  60  0  1 99  0  0
 
  0  0      0 127220  94904 530056    0    0    0    0  39  60  0  1 99  0  0
</pre>
 
 
<pre>
 
vmstat --help
 
 
Usage:
 
vmstat [options] [delay [count]]
 
 
Options:
 
-a, --active          active/inactive memory
 
-f, --forks            number of forks since boot
 
-m, --slabs            slabinfo
 
-n, --one-header      do not redisplay header
 
-s, --stats            event counter statistics
 
-d, --disk            disk statistics
 
-D, --disk-sum        summarize disk statistics
 
-p, --partition <dev>  partition specific statistics
 
-S, --unit <char>      define display unit
 
-w, --wide            wide output
 
-t, --timestamp        show timestamp
 
 
-h, --help    display this help and exit
 
-V, --version  output version information and exit
 
 
 
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* [[proc]]
 
* [[proc]]
 
* {{io performance commands}}
 
* {{io performance commands}}
* {{swap}}
 
* {{OOM}}
 
 
* [[performance]]
 
* [[performance]]
 
* [[uptime]] [[tload]]
 
* [[uptime]] [[tload]]

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