8300042: Improve CPU related JFR events descriptions

Backport-of: e326b86d37cec3b395b88598cf30ce4239732a15
openjdk · Mar 23, 2023 · 8a2425d · 8a2425d · openjdk-notifier · Mar 23, 2023
1 parent 3b64bde
commit 8a2425d
Showing 1 changed file with 9 additions and 3 deletions.
diff --git a/src/hotspot/share/jfr/metadata/metadata.xml b/src/hotspot/share/jfr/metadata/metadata.xml
@@ -709,22 +709,28 @@
     <Field type="string" name="commandLine" label="Command Line" />
   </Event>
 
-  <Event name="CPUInformation" category="Operating System, Processor" label="CPU Information" period="endChunk">
+  <Event name="CPUInformation" category="Operating System, Processor" label="CPU Information"
+         description="Characteristics and descriptions of the processor(s) the JVM is running on"
+         period="endChunk">
     <Field type="string" name="cpu" label="Type" />
     <Field type="string" name="description" label="Description" />
     <Field type="uint" name="sockets" label="Sockets" />
     <Field type="uint" name="cores" label="Cores" />
     <Field type="uint" name="hwThreads" label="Hardware Threads" />
   </Event>
 
-  <Event name="CPUTimeStampCounter" category="Operating System, Processor" label="CPU Time Stamp Counter" period="endChunk">
+  <Event name="CPUTimeStampCounter" category="Operating System, Processor" label="CPU Time Stamp Counter"
+         description="Information about the CPU time stamp mechanism / (RD)TSC"
+         period="endChunk">
     <Field type="boolean" name="fastTimeEnabled" label="Fast Time" />
     <Field type="boolean" name="fastTimeAutoEnabled" label="Trusted Platform" />
     <Field type="long" contentType="hertz" name="osFrequency" label="OS Frequency" />
     <Field type="long" contentType="hertz" name="fastTimeFrequency" label="Fast Time Frequency" />
   </Event>
 
-  <Event name="CPULoad" category="Operating System, Processor" label="CPU Load" description="OS CPU Load" period="everyChunk">
+  <Event name="CPULoad" category="Operating System, Processor" label="CPU Load"
+         description="Information about the recent CPU usage of the JVM process"
+         period="everyChunk">
     <Field type="float" contentType="percentage" name="jvmUser" label="JVM User" />
     <Field type="float" contentType="percentage" name="jvmSystem" label="JVM System" />
     <Field type="float" contentType="percentage" name="machineTotal" label="Machine Total" />