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| <h2 title="Class JvmCpuMonitorInfo" class="title">Class JvmCpuMonitorInfo</h2> |
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| <li>com.ibm.lang.management.JvmCpuMonitorInfo</li> |
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| <pre>public final class <span class="typeNameLabel">JvmCpuMonitorInfo</span> |
| extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" target="_blank" title="class or interface in java.lang" class="externalLink">Object</a></pre> |
| <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> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="JvmCpuMonitorMXBean.html" title="interface in com.ibm.lang.management"><code>For more information on thread categories.</code></a></dd> |
| </dl> |
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| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">JvmCpuMonitorInfo</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a new <code>JvmCpuMonitorInfo</code> instance.</div> |
| </td> |
| </tr> |
| </table> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management">JvmCpuMonitorInfo</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#from(javax.management.openmbean.CompositeData)">from</a></span>​(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/javax/management/openmbean/CompositeData.html?is-external=true" target="_blank" title="class or interface in javax.management.openmbean" class="externalLink">CompositeData</a> cd)</code></th> |
| <td class="colLast"> |
| <div class="block">Receives a <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/javax/management/openmbean/CompositeData.html?is-external=true" target="_blank" title="class or interface in javax.management.openmbean" class="externalLink"><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> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getApplicationCpuTime()">getApplicationCpuTime</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">This method returns the total CPU usage for all application threads.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>long[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getApplicationUserCpuTime()">getApplicationUserCpuTime</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">This method returns an array of CPU usage for all user defined thread categories.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getGcCpuTime()">getGcCpuTime</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">This method returns the total CPU usage of all GC threads.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getJitCpuTime()">getJitCpuTime</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">This method returns the total CPU usage of all JIT Threads.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getResourceMonitorCpuTime()">getResourceMonitorCpuTime</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">This method returns the total CPU usage for all threads of the "Resource-Monitor" category.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSystemJvmCpuTime()">getSystemJvmCpuTime</a></span>()</code></th> |
| <td class="colLast"> |
| <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> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTimestamp()">getTimestamp</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">This method returns the last sampling time stamp.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" target="_blank" title="class or interface in java.lang" class="externalLink">String</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Text description of this <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> object.</div> |
| </td> |
| </tr> |
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| <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></li> |
| </ul> |
| </li> |
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| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>()"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>JvmCpuMonitorInfo</h4> |
| <pre>public JvmCpuMonitorInfo()</pre> |
| <div class="block">Creates a new <code>JvmCpuMonitorInfo</code> instance.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTimestamp</h4> |
| <pre class="methodSignature">public long getTimestamp()</pre> |
| <div class="block">This method returns the last sampling time stamp.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The last sampling time stamp in microseconds.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getApplicationCpuTime()"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getApplicationCpuTime</h4> |
| <pre class="methodSignature">public long getApplicationCpuTime()</pre> |
| <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> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>"Application" category CPU usage time in microseconds.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getResourceMonitorCpuTime()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getResourceMonitorCpuTime</h4> |
| <pre class="methodSignature">public long getResourceMonitorCpuTime()</pre> |
| <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> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>"Resource-Monitor" category CPU usage time in microseconds.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSystemJvmCpuTime()"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getSystemJvmCpuTime</h4> |
| <pre class="methodSignature">public long getSystemJvmCpuTime()</pre> |
| <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> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>"System-JVM" category CPU usage time in microseconds.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getGcCpuTime()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getGcCpuTime</h4> |
| <pre class="methodSignature">public long getGcCpuTime()</pre> |
| <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> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>"GC" category CPU usage time in microseconds.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getJitCpuTime()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getJitCpuTime</h4> |
| <pre class="methodSignature">public long getJitCpuTime()</pre> |
| <div class="block">This method returns the total CPU usage of all JIT Threads.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>"JIT" category CPU usage time in microseconds.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getApplicationUserCpuTime()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getApplicationUserCpuTime</h4> |
| <pre class="methodSignature">public long[] getApplicationUserCpuTime()</pre> |
| <div class="block">This method returns an array of CPU usage for all user defined thread categories.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Array of user defined thread categories' CPU usage time in microseconds.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="from(javax.management.openmbean.CompositeData)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>from</h4> |
| <pre class="methodSignature">public static <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management">JvmCpuMonitorInfo</a> from​(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/javax/management/openmbean/CompositeData.html?is-external=true" target="_blank" title="class or interface in javax.management.openmbean" class="externalLink">CompositeData</a> cd)</pre> |
| <div class="block">Receives a <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/javax/management/openmbean/CompositeData.html?is-external=true" target="_blank" title="class or interface in javax.management.openmbean" class="externalLink"><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> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>cd</code> - A <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.management/javax/management/openmbean/CompositeData.html?is-external=true" target="_blank" title="class or interface in javax.management.openmbean" class="externalLink"><code>CompositeData</code></a> that represents a |
| <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a>.</dd> |
| <dt><span class="returnLabel">Returns:</span></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><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/IllegalArgumentException.html?is-external=true" target="_blank" title="class or interface in java.lang" class="externalLink">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> |
| </li> |
| </ul> |
| <a id="toString()"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>toString</h4> |
| <pre class="methodSignature">public <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" target="_blank" title="class or interface in java.lang" class="externalLink">String</a> toString()</pre> |
| <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> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a></code> in class <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" target="_blank" title="class or interface in java.lang" class="externalLink">Object</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Text description of this <a href="JvmCpuMonitorInfo.html" title="class in com.ibm.lang.management"><code>JvmCpuMonitorInfo</code></a> object.</dd> |
| </dl> |
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