diff --git a/jcl/src/jdk.management/share/classes/com/ibm/lang/management/internal/ExtendedOperatingSystemMXBeanImpl.java b/jcl/src/jdk.management/share/classes/com/ibm/lang/management/internal/ExtendedOperatingSystemMXBeanImpl.java
index d29a9d67934..6cf1a32adfe 100644
--- a/jcl/src/jdk.management/share/classes/com/ibm/lang/management/internal/ExtendedOperatingSystemMXBeanImpl.java
+++ b/jcl/src/jdk.management/share/classes/com/ibm/lang/management/internal/ExtendedOperatingSystemMXBeanImpl.java
@@ -245,12 +245,6 @@ public final String getHardwareModel() throws UnsupportedOperationException {
/* Returns the number of CPU's online at this very moment. */
private native int getOnlineProcessorsImpl();
- /**
- * Check if the CpuLoadCompatibility flag is set.
- * @return if the CpuLoadCompatibility flag is set
- */
- private static native boolean hasCpuLoadCompatibilityFlag();
-
/**
* {@inheritDoc}
*/
@@ -269,9 +263,8 @@ public final synchronized double getProcessCpuLoad() {
}
latestCpuTime = cpuTime;
- /* First call to this method returns 0 to match the behaviour of the RI.
- * If the CpuLoadCompatibility flag is set, the bahaviour is reverted to
- * return -1 for compatibility.
+ /* First call to this method should -1, since we don't have any previous
+ * CPU times (or timestamp) to compute CPU load against.
*/
if (-1 == oldTime) {
/* Save current counters; next invocation onwards, we use these to
@@ -279,11 +272,7 @@ public final synchronized double getProcessCpuLoad() {
*/
oldTime = interimTime = latestTime;
oldCpuTime = interimCpuTime = latestCpuTime;
- if (hasCpuLoadCompatibilityFlag()) {
- return 0;
- } else {
- return CpuLoadCalculationConstants.ERROR_VALUE;
- }
+ return CpuLoadCalculationConstants.ERROR_VALUE;
}
/* If a sufficiently long interval has elapsed since last sampling, calculate using
diff --git a/runtime/jcl/common/extendedosmbean.c b/runtime/jcl/common/extendedosmbean.c
index 590c3eeadd2..66c88379428 100644
--- a/runtime/jcl/common/extendedosmbean.c
+++ b/runtime/jcl/common/extendedosmbean.c
@@ -518,20 +518,6 @@ Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_getHardw
return (NULL == str) ? NULL : (*env)->NewStringUTF(env, str);
}
-/**
- * Check if the CpuLoadCompatibility flag is set.
- *
- * @param env instance of JNIEnv
- * @param unusedClass
- *
- * @return if the CpuLoadCompatibility flag is set
- */
-jboolean JNICALL
-Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_hasCpuLoadCompatibilityFlag(JNIEnv *env, jclass unusedClass) {
- J9JavaVM *vm = ((J9VMThread *)env)->javaVM;
- return J9_ARE_ALL_BITS_SET(vm->extendedRuntimeFlags2, J9_EXTENDED_RUNTIME2_CPU_LOAD_COMPATIBILITY);
-}
-
/**
* Returns the maximum number of file descriptors that can be opened in a process.
*
diff --git a/runtime/jcl/common/mgmtosext.c b/runtime/jcl/common/mgmtosext.c
index ddcde6f0185..15cb77a373a 100644
--- a/runtime/jcl/common/mgmtosext.c
+++ b/runtime/jcl/common/mgmtosext.c
@@ -83,8 +83,6 @@ jdouble JNICALL
Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_getSystemCpuLoadImpl(JNIEnv *env, jobject instance) {
PORT_ACCESS_FROM_ENV(env);
OMRPORT_ACCESS_FROM_J9PORT(PORTLIB);
-
- J9JavaVM *vm = ((J9VMThread *)env)->javaVM;
double cpuLoad = 0.0;
intptr_t portLibraryStatus = omrsysinfo_get_CPU_load(&cpuLoad);
@@ -97,12 +95,6 @@ Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_getSyste
case OMRPORT_ERROR_SYSINFO_NOT_SUPPORTED:
portLibraryStatus = -3;
break;
- case OMRPORT_ERROR_INSUFFICIENT_DATA:
- portLibraryStatus =
- J9_ARE_ALL_BITS_SET(vm->extendedRuntimeFlags2, J9_EXTENDED_RUNTIME2_CPU_LOAD_COMPATIBILITY)
- ? 0
- : OMRPORT_ERROR_INSUFFICIENT_DATA;
- break;
default:
portLibraryStatus = OMRPORT_ERROR_OPFAILED;
break;
diff --git a/runtime/jcl/exports.cmake b/runtime/jcl/exports.cmake
index 58cb872e8a2..eb59fcd4fbc 100644
--- a/runtime/jcl/exports.cmake
+++ b/runtime/jcl/exports.cmake
@@ -228,7 +228,6 @@ omr_add_exports(jclse
Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_getSystemCpuLoadImpl
Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_getTotalPhysicalMemoryImpl
Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_getTotalProcessorUsageImpl
- Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_hasCpuLoadCompatibilityFlag
Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_isDLPAREnabled
Java_com_ibm_lang_management_internal_ExtendedRuntimeMXBeanImpl_getVMIdleStateImpl
Java_com_ibm_lang_management_internal_JvmCpuMonitor_getThreadCategoryImpl
diff --git a/runtime/jcl/uma/se7_exports.xml b/runtime/jcl/uma/se7_exports.xml
index d62abf443f7..25289847126 100644
--- a/runtime/jcl/uma/se7_exports.xml
+++ b/runtime/jcl/uma/se7_exports.xml
@@ -67,7 +67,6 @@
-
diff --git a/runtime/oti/j9consts.h b/runtime/oti/j9consts.h
index c41db8a2b25..440c7a81902 100644
--- a/runtime/oti/j9consts.h
+++ b/runtime/oti/j9consts.h
@@ -361,7 +361,7 @@ extern "C" {
#define J9_EXTENDED_RUNTIME2_USE_CONTAINER_SUPPORT 0x200000
#define J9_EXTENDED_RUNTIME2_SHOW_CARRIER_FRAMES 0x400000
#define J9_EXTENDED_RUNTIME2_CRIU_SINGLE_THROW_BLOCKING_EXCEPTIONS 0x800000
-#define J9_EXTENDED_RUNTIME2_CPU_LOAD_COMPATIBILITY 0x1000000
+#define J9_EXTENDED_RUNTIME2_UNUSED_0x1000000 0x1000000
#define J9_OBJECT_HEADER_AGE_DEFAULT 0xA /* OBJECT_HEADER_AGE_DEFAULT */
#define J9_OBJECT_HEADER_SHAPE_MASK 0xE /* OBJECT_HEADER_SHAPE_MASK */
diff --git a/runtime/oti/jclprots.h b/runtime/oti/jclprots.h
index ff6c91cbe3d..1fcc2f7908f 100644
--- a/runtime/oti/jclprots.h
+++ b/runtime/oti/jclprots.h
@@ -1166,8 +1166,6 @@ Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_getOnlin
jstring JNICALL
Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_getHardwareModelImpl(JNIEnv *env, jobject obj);
-jboolean JNICALL
-Java_com_ibm_lang_management_internal_ExtendedOperatingSystemMXBeanImpl_hasCpuLoadCompatibilityFlag(JNIEnv *env, jclass unusedClass);
/**
* Returns the maximum number of file descriptors that can be opened in a process.
*
diff --git a/runtime/oti/jvminit.h b/runtime/oti/jvminit.h
index 1539d0382f2..5bfa34eb4e6 100644
--- a/runtime/oti/jvminit.h
+++ b/runtime/oti/jvminit.h
@@ -417,8 +417,6 @@ enum INIT_STAGE {
#define VMOPT_XXDISABLEENSUREHASHED "-XX:-EnsureHashed:"
#define VMOPT_XXOPENJ9COMMANDLINEENV "-XX:+OpenJ9CommandLineEnv"
#define VMOPT_XXNOOPENJ9COMMANDLINEENV "-XX:-OpenJ9CommandLineEnv"
-#define VMOPT_XXCPULOADCOMPATIBILITY "-XX:+CpuLoadCompatibility"
-#define VMOPT_XXNOCPULOADCOMPATIBILITY "-XX:-CpuLoadCompatibility"
#if defined(J9VM_ZOS_3164_INTEROPERABILITY)
#define VMOPT_XXENABLE3164INTEROPERABILITY "-XX:+Enable3164Interoperability"
diff --git a/runtime/vm/jvminit.c b/runtime/vm/jvminit.c
index da347ec9e2d..0ee2c617a45 100644
--- a/runtime/vm/jvminit.c
+++ b/runtime/vm/jvminit.c
@@ -4123,14 +4123,6 @@ processVMArgsFromFirstToLast(J9JavaVM * vm)
}
}
- {
- IDATA cpuLoadCompatibility = FIND_AND_CONSUME_VMARG(EXACT_MATCH, VMOPT_XXCPULOADCOMPATIBILITY , NULL);
- IDATA noCpuLoadCompatibility = FIND_AND_CONSUME_VMARG(EXACT_MATCH, VMOPT_XXNOCPULOADCOMPATIBILITY , NULL);
- if (cpuLoadCompatibility > noCpuLoadCompatibility) {
- vm->extendedRuntimeFlags2 |= J9_EXTENDED_RUNTIME2_CPU_LOAD_COMPATIBILITY;
- }
- }
-
return JNI_OK;
}