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comparison src/share/vm/runtime/os.hpp @ 3318:188c9a5d6a6d

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7040485: Use transparent huge page on linux by default Summary: Turn on UseLargePages by default but try only HugeTLBFS method if it is not explicitly specified on the command line. Reviewed-by: ysr
author iveresov
date Fri, 29 Apr 2011 12:39:32 -0700
parents 677234770800
children bf6481e5f96d
comparison
equal deleted inserted replaced
3315:da0fffdcc453 3318:188c9a5d6a6d
272 static char* non_memory_address_word(); 272 static char* non_memory_address_word();
273 // reserve, commit and pin the entire memory region 273 // reserve, commit and pin the entire memory region
274 static char* reserve_memory_special(size_t size, char* addr = NULL, 274 static char* reserve_memory_special(size_t size, char* addr = NULL,
275 bool executable = false); 275 bool executable = false);
276 static bool release_memory_special(char* addr, size_t bytes); 276 static bool release_memory_special(char* addr, size_t bytes);
277 static bool large_page_init(); 277 static void large_page_init();
278 static size_t large_page_size(); 278 static size_t large_page_size();
279 static bool can_commit_large_page_memory(); 279 static bool can_commit_large_page_memory();
280 static bool can_execute_large_page_memory(); 280 static bool can_execute_large_page_memory();
281 281
282 // OS interface to polling page 282 // OS interface to polling page