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Change jvmtiGetAvailableProcessors to use J9PORT_CPU_TARGET #2255

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merged 1 commit into from
Jul 6, 2018
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Change jvmtiGetAvailableProcessors to use J9PORT_CPU_TARGET #2255

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2 changes: 2 additions & 0 deletions runtime/j9vm/jvm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5508,6 +5508,8 @@ JVM_ActiveProcessorCount(void)
* Runtime.availableProcessors() by specification returns a number greater or equal to 1.
* RTC 112959: [was 209402] Liberty JAX-RS Default Executor poor performance. Match reference implementation behaviour
* to return the bound CPUs rather than physical CPUs.
*
* This implementation should be kept consistent with jvmtiGetAvailableProcessors
*/
num = (jint)j9sysinfo_get_number_CPUs_by_type(J9PORT_CPU_TARGET);
if (num < 1) {
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5 changes: 3 additions & 2 deletions runtime/jvmti/jvmtiTimers.c
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Expand Up @@ -208,8 +208,9 @@ jvmtiGetAvailableProcessors(jvmtiEnv* env,

ENSURE_NON_NULL(processor_count_ptr);

cpuCount = j9sysinfo_get_number_CPUs_by_type(J9PORT_CPU_ONLINE);
*processor_count_ptr = ((cpuCount == 0) ? 1 : (jint) cpuCount);
/* This implementation should be kept consistent with JVM_ActiveProcessorCount */
cpuCount = j9sysinfo_get_number_CPUs_by_type(J9PORT_CPU_TARGET);
*processor_count_ptr = ((cpuCount < 1) ? 1 : (jint) cpuCount);
rc = JVMTI_ERROR_NONE;

done:
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