1.1 --- a/src/share/vm/runtime/os.hpp Fri Oct 28 22:36:23 2016 +0000
1.2 +++ b/src/share/vm/runtime/os.hpp Thu Dec 15 19:48:32 2016 -0500
1.3 @@ -151,6 +151,7 @@
1.4
1.5 static size_t page_size_for_region(size_t region_size, size_t min_pages, bool must_be_aligned);
1.6
1.7 + static void initialize_initial_active_processor_count();
1.8 public:
1.9 static void init(void); // Called before command line parsing
1.10 static void init_before_ergo(void); // Called after command line parsing
1.11 @@ -238,6 +239,13 @@
1.12 // Note that on some OSes this can change dynamically.
1.13 static int active_processor_count();
1.14
1.15 + // At startup the number of active CPUs this process is allowed to run on.
1.16 + // This value does not change dynamically. May be different from active_processor_count().
1.17 + static int initial_active_processor_count() {
1.18 + assert(_initial_active_processor_count > 0, "Initial active processor count not set yet.");
1.19 + return _initial_active_processor_count;
1.20 + }
1.21 +
1.22 // Bind processes to processors.
1.23 // This is a two step procedure:
1.24 // first you generate a distribution of processes to processors,
1.25 @@ -975,8 +983,9 @@
1.26
1.27
1.28 protected:
1.29 - static long _rand_seed; // seed for random number generator
1.30 - static int _processor_count; // number of processors
1.31 + static long _rand_seed; // seed for random number generator
1.32 + static int _processor_count; // number of processors
1.33 + static int _initial_active_processor_count; // number of active processors during initialization.
1.34
1.35 static char* format_boot_path(const char* format_string,
1.36 const char* home,
