--- old/src/share/vm/runtime/globals.hpp	2016-02-05 17:11:39.805203176 +0100
+++ new/src/share/vm/runtime/globals.hpp	2016-02-05 17:11:39.710200374 +0100
@@ -2012,11 +2012,12 @@
           range(min_intx, 100)                                              \
                                                                             \
   product(uintx, InitiatingHeapOccupancyPercent, 45,                        \
-          "Percentage of the (entire) heap occupancy to start a "           \
-          "concurrent GC cycle. It is used by GCs that trigger a "          \
-          "concurrent GC cycle based on the occupancy of the entire heap, " \
-          "not just one of the generations (e.g., G1). A value of 0 "       \
-          "denotes 'do constant GC cycles'.")                               \
+          "The percent occupancy (IHOP) of the current old generation "     \
+          "capacity after which a concurrent mark cycle will be initiated " \
+          "at the next GC. The value may change over time if adaptive IHOP "\
+          "is enabled, otherwise the value remains constant. In the latter "\
+          "case a value of 0 will result in frequent concurrent marking "   \
+          "cycles. (G1 collector only)")                                    \
           range(0, 100)                                                     \
                                                                             \
   manageable(intx, CMSTriggerInterval, -1,                                  \