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                        <h1 id="pidstat1"><a class="header" href="#pidstat1">pidstat(1)</a></h1>
<pre><code class="language-markdown">pidstat [opt] [interval] [cont]
  -U [user]     show username instead UID, optionally only show for user
  -r            memory statistics
  -d            I/O statistics
  -h            single line per process and no lines with average
</code></pre>
<h1 id="page-fault-and-memory-utilization"><a class="header" href="#page-fault-and-memory-utilization">Page fault and memory utilization</a></h1>
<pre><code class="language-markdown">pidstat -r -p &lt;pid&gt; [interval] [count]
</code></pre>
<pre><code class="language-markdown">minor_pagefault: Happens when the page needed is already in memory but not
                 allocated to the faulting process, in that case the kernel
                 only has to create a new page-table entry pointing to the
                 shared physical page (not required to load a memory page from
                 disk).

major_pagefault: Happens when the page needed is NOT in memory, the kernel
                 has to create a new page-table entry and populate the
                 physical page (required to load a memory page from disk).
</code></pre>
<h1 id="io-statistics"><a class="header" href="#io-statistics">I/O statistics</a></h1>
<pre><code class="language-markdown">pidstat -d -p &lt;pid&gt; [interval] [count]
</code></pre>

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                        <h1 id="pidstat1"><a class="header" href="#pidstat1">pidstat(1)</a></h1>
<pre><code class="language-markdown">pidstat [opt] [interval] [cont]
  -U [user]     show username instead UID, optionally only show for user
  -r            memory statistics
  -d            I/O statistics
  -h            single line per process and no lines with average
</code></pre>
<h1 id="page-fault-and-memory-utilization"><a class="header" href="#page-fault-and-memory-utilization">Page fault and memory utilization</a></h1>
<pre><code class="language-markdown">pidstat -r -p &lt;pid&gt; [interval] [count]
</code></pre>
<pre><code class="language-markdown">minor_pagefault: Happens when the page needed is already in memory but not
                 allocated to the faulting process, in that case the kernel
                 only has to create a new page-table entry pointing to the
                 shared physical page (not required to load a memory page from
                 disk).

major_pagefault: Happens when the page needed is NOT in memory, the kernel
                 has to create a new page-table entry and populate the
                 physical page (required to load a memory page from disk).
</code></pre>
<h1 id="io-statistics"><a class="header" href="#io-statistics">I/O statistics</a></h1>
<pre><code class="language-markdown">pidstat -d -p &lt;pid&gt; [interval] [count]
</code></pre>

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