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                    <h1 id="get-dbatopresourceusage">Get-DbaTopResourceUsage</h1>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>Author</strong></td>
<td>Chrissy LeMaire (@cl), netnerds.net</td>
</tr>
<tr>
<td><strong>Availability</strong></td>
<td>Windows, Linux, macOS</td>
</tr>
</tbody>
</table>
<p> </p>
<p>Want to see the source code for this command? Check out <a href="https://github.com/dataplat/dbatools/blob/master/public/Get-DbaTopResourceUsage.ps1">Get-DbaTopResourceUsage</a> on GitHub.
<br>
Want to see the Bill Of Health for this command? Check out <a href="https://dataplat.github.io/boh#Get-DbaTopResourceUsage">Get-DbaTopResourceUsage</a>.</p>
<h2 id="synopsis">Synopsis</h2>
<p>Returns the top 20 resource consumers for cached queries based on four different metrics: duration, frequency, IO, and CPU.</p>
<h2 id="description">Description</h2>
<p>Returns the top 20 resource consumers for cached queries based on four different metrics: duration, frequency, IO, and CPU.</p>
<p>This command is based off of queries provided by Michael J. Swart at <a href="http://michaeljswart.com/go/Top20">http://michaeljswart.com/go/Top20</a></p>
<p>Per Michael: &quot;I've posted queries like this before, and others have written many other versions of this query. All these queries are based on sys.dm_exec_query_stats.&quot;</p>
<h2 id="syntax">Syntax</h2>
<pre><code>Get-DbaTopResourceUsage
    [-SqlInstance] &lt;DbaInstanceParameter[]&gt;
    [[-SqlCredential] &lt;PSCredential&gt;]
    [[-Database] &lt;Object[]&gt;]
    [[-ExcludeDatabase] &lt;Object[]&gt;]
    [[-Type] &lt;String[]&gt;]
    [[-Limit] &lt;Int32&gt;]
    [-EnableException]
    [-ExcludeSystem]
    [&lt;CommonParameters&gt;]

</code></pre>
<p> </p>
<h2 id="examples">Examples</h2>
<p> </p>
<h5 id="example-1">Example:  1</h5>
<pre><code>PS C:\&gt; Get-DbaTopResourceUsage -SqlInstance sql2008, sql2012
</code></pre>
<p>Return the 80 (20 x 4 types) top usage results by duration, frequency, IO, and CPU servers for servers sql2008 and sql2012<br></p>
<h5 id="example-2">Example:  2</h5>
<pre><code>PS C:\&gt; Get-DbaTopResourceUsage -SqlInstance sql2008 -Type Duration, Frequency -Database TestDB
</code></pre>
<p>Return the highest usage by duration (top 20) and frequency (top 20) for the TestDB on sql2008<br></p>
<h5 id="example-3">Example:  3</h5>
<pre><code>PS C:\&gt; Get-DbaTopResourceUsage -SqlInstance sql2016 -Limit 30
</code></pre>
<p>Return the highest usage by duration (top 30) and frequency (top 30) for the TestDB on sql2016<br></p>
<h5 id="example-4">Example:  4</h5>
<pre><code>PS C:\&gt; Get-DbaTopResourceUsage -SqlInstance sql2008, sql2012 -ExcludeSystem
</code></pre>
<p>Return the 80 (20 x 4 types) top usage results by duration, frequency, IO, and CPU servers for servers sql2008 and sql2012 without any System Objects<br></p>
<h5 id="example-5">Example:  5</h5>
<pre><code>PS C:\&gt; Get-DbaTopResourceUsage -SqlInstance sql2016| Select-Object *
</code></pre>
<p>Return all the columns plus the QueryPlan column<br></p>
<h3 id="required-parameters">Required Parameters</h3>
<h5 id="sqlinstance">-SqlInstance</h5>
<p>The target SQL Server instance or instances. <br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>True</td>
</tr>
<tr>
<td>Pipeline</td>
<td>true (ByValue)</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="optional-parameters">Optional Parameters</h3>
<h5 id="sqlcredential">-SqlCredential</h5>
<p>Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential).<br />
Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported.<br />
For MFA support, please use Connect-DbaInstance.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="database">-Database</h5>
<p>The database(s) to process - this list is auto-populated from the server. If unspecified, all databases will be processed.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="excludedatabase">-ExcludeDatabase</h5>
<p>The database(s) to exclude - this list is auto-populated from the server<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="type">-Type</h5>
<p>By default, all Types run but you can specify one or more of the following: Duration, Frequency, IO, or CPU<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>All</td>
</tr>
<tr>
<td>Accepted Values</td>
<td>All,Duration,Frequency,IO,CPU</td>
</tr>
</tbody>
</table>
<h5 id="limit">-Limit</h5>
<p>By default, these query the Top 20 worst offenders (though more than 20 results can be returned if each of the top 20 have more than 1 subsequent result)<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>20</td>
</tr>
</tbody>
</table>
<h5 id="enableexception">-EnableException</h5>
<p>By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.<br />
This avoids overwhelming you with &quot;sea of red&quot; exceptions, but is inconvenient because it basically disables advanced scripting.<br />
Using this switch turns this &quot;nice by default&quot; feature off and enables you to catch exceptions with your own try/catch.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>False</td>
</tr>
</tbody>
</table>
<h5 id="excludesystem">-ExcludeSystem</h5>
<p>This will exclude system objects like replication procedures from being returned.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>False</td>
</tr>
</tbody>
</table>
<p> </p>

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