Mercurial > hg > graal-compiler

comparison src/share/vm/memory/generation.hpp @ 263:12eea04c8b06

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6672698: mangle_unused_area() should not remangle the entire heap at each collection. Summary: Maintain a high water mark for the allocations in a space and mangle only up to that high water mark. Reviewed-by: ysr, apetrusenko
author jmasa
date Wed, 09 Jul 2008 15:08:55 -0700
parents ba764ed4b6f2
children 850fdf70db2b
comparison
equal deleted inserted replaced
225:286bee59f34b 263:12eea04c8b06
374 374
375 // Some generations may require some cleanup actions after a collection. 375 // Some generations may require some cleanup actions after a collection.
376 // The default is to do nothing. 376 // The default is to do nothing.
377 virtual void gc_epilogue(bool full) {}; 377 virtual void gc_epilogue(bool full) {};
378 378
379 // Save the high water marks for the used space in a generation.
380 virtual void record_spaces_top() {};
381
379 // Some generations may need to be "fixed-up" after some allocation 382 // Some generations may need to be "fixed-up" after some allocation
380 // activity to make them parsable again. The default is to do nothing. 383 // activity to make them parsable again. The default is to do nothing.
381 virtual void ensure_parsability() {}; 384 virtual void ensure_parsability() {};
382 385
383 // Time (in ms) when we were last collected or now if a collection is 386 // Time (in ms) when we were last collected or now if a collection is
474 // it to "list", leaving "list" pointing to the head of the 477 // it to "list", leaving "list" pointing to the head of the
475 // augmented list. The default is to offer no space. 478 // augmented list. The default is to offer no space.
476 virtual void contribute_scratch(ScratchBlock*& list, Generation* requestor, 479 virtual void contribute_scratch(ScratchBlock*& list, Generation* requestor,
477 size_t max_alloc_words) {} 480 size_t max_alloc_words) {}
478 481
482 // Give each generation an opportunity to do clean up for any
483 // contributed scratch.
484 virtual void reset_scratch() {};
485
479 // When an older generation has been collected, and perhaps resized, 486 // When an older generation has been collected, and perhaps resized,
480 // this method will be invoked on all younger generations (from older to 487 // this method will be invoked on all younger generations (from older to
481 // younger), allowing them to resize themselves as appropriate. 488 // younger), allowing them to resize themselves as appropriate.
482 virtual void compute_new_size() = 0; 489 virtual void compute_new_size() = 0;
483 490
697 704
698 virtual void prepare_for_verify(); 705 virtual void prepare_for_verify();
699 706
700 virtual void gc_epilogue(bool full); 707 virtual void gc_epilogue(bool full);
701 708
709 virtual void record_spaces_top();
710
702 virtual void verify(bool allow_dirty); 711 virtual void verify(bool allow_dirty);
703 virtual void print_on(outputStream* st) const; 712 virtual void print_on(outputStream* st) const;
704 }; 713 };