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| <div class="sub-title"><span class="module-label-in-type">Module</span> <a href="../../../../module-summary.html">jdk.management</a></div> |
| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">com.ibm.lang.management</a></div> |
| <h1 title="Class JvmCpuMonitorInfo" class="title">Class JvmCpuMonitorInfo</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">java.lang.Object</a> |
| <div class="inheritance">com.ibm.lang.management.JvmCpuMonitorInfo</div> |
| </div> |
| <section class="description"> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public final class </span><span class="element-name type-name-label">JvmCpuMonitorInfo</span> |
| <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></span></div> |
| <div class="block"><code>JvmCpuMonitorInfo</code> provides a snapshot of JVM CPU usage information |
| that is distributed across thread categories. A time stamp for the snapshot is |
| also provided.</div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd><a href="JvmCpuMonitorMXBean.html" title="interface in com.ibm.lang.management"><code>For more information on thread categories.</code></a></dd> |
| </dl> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <li> |
| <section class="constructor-summary" id="constructor.summary"> |
| <h2>Constructor Summary</h2> |
| <div class="caption"><span>Constructors</span></div> |
| <div class="summary-table two-column-summary"> |
| <div class="table-header col-first">Constructor</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-constructor-name even-row-color"><code><span class="member-name-link"><a href="#%3Cinit%3E()">JvmCpuMonitorInfo</a></span>()</code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Creates a new <code>JvmCpuMonitorInfo</code> instance.</div> |
| </div> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method.summary"> |
| <h2>Method Summary</h2> |
| <div id="method-summary-table"> |
| <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div> |
| <div id="method-summary-table.tabpanel" role="tabpanel"> |
| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table-tab1 method-summary-table-tab4 method-summary-table"><code>static <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management">JvmCpuMonitorInfo</a></code></div> |
| <div class="col-second even-row-color method-summary-table-tab1 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#from(javax.management.openmbean.CompositeData)">from</a></span>​(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.management/javax/management/openmbean/CompositeData.html" title="class or interface in javax.management.openmbean" class="external-link" target="_blank">CompositeData</a> cd)</code></div> |
| <div class="col-last even-row-color method-summary-table-tab1 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Receives a <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.management/javax/management/openmbean/CompositeData.html" title="class or interface in javax.management.openmbean" class="external-link" target="_blank"><code>CompositeData</code></a> representing a |
| <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> object and attempts to return the root |
| <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> instance.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getApplicationCpuTime()">getApplicationCpuTime</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">This method returns the total CPU usage for all application threads.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long[]</code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getApplicationUserCpuTime()">getApplicationUserCpuTime</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">This method returns an array of CPU usage for all user defined thread categories.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getGcCpuTime()">getGcCpuTime</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">This method returns the total CPU usage of all GC threads.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long</code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getJitCpuTime()">getJitCpuTime</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">This method returns the total CPU usage of all JIT Threads.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getResourceMonitorCpuTime()">getResourceMonitorCpuTime</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">This method returns the total CPU usage for all threads of the "Resource-Monitor" category.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long</code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getSystemJvmCpuTime()">getSystemJvmCpuTime</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">This method returns the total CPU usage of the "System-JVM" category, which |
| includes GC, JIT and other JVM daemon threads.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getTimestamp()">getTimestamp</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">This method returns the last sampling time stamp.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#toString()">toString</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Text description of this <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> object.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods.inherited.from.class.java.lang.Object">Methods declared in class java.lang.<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link" target="_blank">clone</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link" target="_blank">equals</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link" target="_blank">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link" target="_blank">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link" target="_blank">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link" target="_blank">notify</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link" target="_blank">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <li> |
| <section class="constructor-details" id="constructor.detail"> |
| <h2>Constructor Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="<init>()"> |
| <h3>JvmCpuMonitorInfo</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="element-name">JvmCpuMonitorInfo</span>()</div> |
| <div class="block">Creates a new <code>JvmCpuMonitorInfo</code> instance.</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method.detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="getTimestamp()"> |
| <h3>getTimestamp</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long</span> <span class="element-name">getTimestamp</span>()</div> |
| <div class="block">This method returns the last sampling time stamp.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>The last sampling time stamp in microseconds.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getApplicationCpuTime()"> |
| <h3>getApplicationCpuTime</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long</span> <span class="element-name">getApplicationCpuTime</span>()</div> |
| <div class="block">This method returns the total CPU usage for all application threads. |
| It includes the threads that are in the "Application" category as well as those in the user defined categories (Application-UserX). |
| This does not include information about "Resource-monitor" threads.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>"Application" category CPU usage time in microseconds.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getResourceMonitorCpuTime()"> |
| <h3>getResourceMonitorCpuTime</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long</span> <span class="element-name">getResourceMonitorCpuTime</span>()</div> |
| <div class="block">This method returns the total CPU usage for all threads of the "Resource-Monitor" category. |
| "Resource-Monitor" thread is any thread, that the application has designated as a "Resource-Monitor".</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>"Resource-Monitor" category CPU usage time in microseconds.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getSystemJvmCpuTime()"> |
| <h3>getSystemJvmCpuTime</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long</span> <span class="element-name">getSystemJvmCpuTime</span>()</div> |
| <div class="block">This method returns the total CPU usage of the "System-JVM" category, which |
| includes GC, JIT and other JVM daemon threads. The data also includes usage |
| of any thread that has participated in "GC" activity for the duration spent |
| in that activity if the -XX:-ReduceCPUMonitorOverhead option is specified. |
| See the user guide for more information on this option.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>"System-JVM" category CPU usage time in microseconds.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getGcCpuTime()"> |
| <h3>getGcCpuTime</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long</span> <span class="element-name">getGcCpuTime</span>()</div> |
| <div class="block">This method returns the total CPU usage of all GC threads. |
| It also includes CPU usage by non GC threads that participate in GC activity for the period |
| that they do GC work if the -XX:-ReduceCPUMonitorOverhead option is specified. |
| See the user guide for more information on this option. |
| -XX:-ReduceCPUMonitorOverhead is not supported on z/OS.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>"GC" category CPU usage time in microseconds.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getJitCpuTime()"> |
| <h3>getJitCpuTime</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long</span> <span class="element-name">getJitCpuTime</span>()</div> |
| <div class="block">This method returns the total CPU usage of all JIT Threads.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>"JIT" category CPU usage time in microseconds.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getApplicationUserCpuTime()"> |
| <h3>getApplicationUserCpuTime</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long[]</span> <span class="element-name">getApplicationUserCpuTime</span>()</div> |
| <div class="block">This method returns an array of CPU usage for all user defined thread categories.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Array of user defined thread categories' CPU usage time in microseconds.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="from(javax.management.openmbean.CompositeData)"> |
| <h3>from</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management">JvmCpuMonitorInfo</a></span> <span class="element-name">from</span>​<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.management/javax/management/openmbean/CompositeData.html" title="class or interface in javax.management.openmbean" class="external-link" target="_blank">CompositeData</a> cd)</span></div> |
| <div class="block">Receives a <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.management/javax/management/openmbean/CompositeData.html" title="class or interface in javax.management.openmbean" class="external-link" target="_blank"><code>CompositeData</code></a> representing a |
| <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> object and attempts to return the root |
| <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> instance.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>cd</code> - A <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.management/javax/management/openmbean/CompositeData.html" title="class or interface in javax.management.openmbean" class="external-link" target="_blank"><code>CompositeData</code></a> that represents a |
| <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a>.</dd> |
| <dt>Returns:</dt> |
| <dd>if <code>cd</code> is non- <code>null</code>, returns a new instance of |
| <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a>, |
| If <code>cd</code> is <code>null</code>, returns <code>null</code>.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/IllegalArgumentException.html" title="class or interface in java.lang" class="external-link" target="_blank">IllegalArgumentException</a></code> - if argument <code>cd</code> does not correspond to a |
| <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> with the following attributes: |
| <ul> |
| <li><code>timestamp</code>(<code>java.lang.Long</code>)</li> |
| <li><code>applicationCpuTime</code>(<code>java.lang.Long</code>)</li> |
| <li><code>resourceMonitorCpuTime</code>(<code>java.lang.Long</code>)</li> |
| <li><code>systemJvmCpuTime</code>(<code>java.lang.Long</code>)</li> |
| <li><code>gcCpuTime</code>(<code>java.lang.Long</code>)</li> |
| <li><code>jitCpuTime</code>(<code>java.lang.Long</code>)</li> |
| <li><code>applicationUserCpuTime</code></li> |
| </ul></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="toString()"> |
| <h3>toString</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></span> <span class="element-name">toString</span>()</div> |
| <div class="block">Text description of this <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> object.</div> |
| <dl class="notes"> |
| <dt>Overrides:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link" target="_blank">toString</a></code> in class <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>Text description of this <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> object.</dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </section> |
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