--- a/hotspot/src/share/vm/runtime/globals.hpp Tue Aug 29 10:41:51 2017 +0000
+++ b/hotspot/src/share/vm/runtime/globals.hpp Tue Aug 29 15:53:04 2017 -0400
@@ -2037,7 +2037,7 @@
\
product(size_t, ErgoHeapSizeLimit, 0, \
"Maximum ergonomically set heap size (in bytes); zero means use " \
- "MaxRAM / MaxRAMFraction") \
+ "MaxRAM * MaxRAMPercentage / 100") \
range(0, max_uintx) \
\
experimental(bool, UseCGroupMemoryLimitForHeap, false, \
@@ -2046,18 +2046,34 @@
\
product(uintx, MaxRAMFraction, 4, \
"Maximum fraction (1/n) of real memory used for maximum heap " \
- "size") \
+ "size. " \
+ "Deprecated, use MaxRAMPercentage instead") \
range(1, max_uintx) \
\
product(uintx, MinRAMFraction, 2, \
"Minimum fraction (1/n) of real memory used for maximum heap " \
- "size on systems with small physical memory size") \
+ "size on systems with small physical memory size. " \
+ "Deprecated, use MinRAMPercentage instead") \
range(1, max_uintx) \
\
product(uintx, InitialRAMFraction, 64, \
- "Fraction (1/n) of real memory used for initial heap size") \
+ "Fraction (1/n) of real memory used for initial heap size. " \
+ "Deprecated, use InitialRAMPercentage instead") \
range(1, max_uintx) \
\
+ product(double, MaxRAMPercentage, 25.0, \
+ "Maximum percentage of real memory used for maximum heap size") \
+ range(0.0, 100.0) \
+ \
+ product(double, MinRAMPercentage, 50.0, \
+ "Minimum percentage of real memory used for maximum heap" \
+ "size on systems with small physical memory size") \
+ range(0.0, 100.0) \
+ \
+ product(double, InitialRAMPercentage, 1.5625, \
+ "Percentage of real memory used for initial heap size") \
+ range(0.0, 100.0) \
+ \
develop(uintx, MaxVirtMemFraction, 2, \
"Maximum fraction (1/n) of virtual memory used for ergonomically "\
"determining maximum heap size") \