--- old/src/hotspot/os/solaris/os_solaris.cpp	2017-10-11 14:34:43.564980019 -0400
+++ new/src/hotspot/os/solaris/os_solaris.cpp	2017-10-11 14:34:42.292907539 -0400
@@ -291,6 +291,14 @@
 }
 
 int os::active_processor_count() {
+  // User has overridden the number of active processors
+  if (ActiveProcessorCount > 0) {
+    log_trace(os)("active_processor_count: "
+                  "active processor count set by user : %d",
+                  (int)ActiveProcessorCount);
+    return ActiveProcessorCount;
+  }
+
   int online_cpus = sysconf(_SC_NPROCESSORS_ONLN);
   pid_t pid = getpid();
   psetid_t pset = PS_NONE;