407 // The spaces have already been mangled at this point but
408 // may not have been cleared (set top = bottom) and should be.
409 // Mangling was done when the heap was being expanded.
410 compute_space_boundaries(eden()->used(),
411 SpaceDecorator::Clear,
412 SpaceDecorator::DontMangle);
413 MemRegion cmr((HeapWord*)_virtual_space.low(),
414 (HeapWord*)_virtual_space.high());
415 gch->rem_set()->resize_covered_region(cmr);
416
417 log_debug(gc, ergo, heap)(
418 "New generation size " SIZE_FORMAT "K->" SIZE_FORMAT "K [eden=" SIZE_FORMAT "K,survivor=" SIZE_FORMAT "K]",
419 new_size_before/K, _virtual_space.committed_size()/K,
420 eden()->capacity()/K, from()->capacity()/K);
421 log_trace(gc, ergo, heap)(
422 " [allowed " SIZE_FORMAT "K extra for %d threads]",
423 thread_increase_size/K, threads_count);
424 }
425 }
426
427 void DefNewGeneration::younger_refs_iterate(OopsInGenClosure* cl, uint n_threads) {
428 assert(false, "NYI -- are you sure you want to call this?");
429 }
430
431
432 size_t DefNewGeneration::capacity() const {
433 return eden()->capacity()
434 + from()->capacity(); // to() is only used during scavenge
435 }
436
437
438 size_t DefNewGeneration::used() const {
439 return eden()->used()
440 + from()->used(); // to() is only used during scavenge
441 }
442
443
444 size_t DefNewGeneration::free() const {
445 return eden()->free()
446 + from()->free(); // to() is only used during scavenge
447 }
448
449 size_t DefNewGeneration::max_capacity() const {
450 const size_t reserved_bytes = reserved().byte_size();
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407 // The spaces have already been mangled at this point but
408 // may not have been cleared (set top = bottom) and should be.
409 // Mangling was done when the heap was being expanded.
410 compute_space_boundaries(eden()->used(),
411 SpaceDecorator::Clear,
412 SpaceDecorator::DontMangle);
413 MemRegion cmr((HeapWord*)_virtual_space.low(),
414 (HeapWord*)_virtual_space.high());
415 gch->rem_set()->resize_covered_region(cmr);
416
417 log_debug(gc, ergo, heap)(
418 "New generation size " SIZE_FORMAT "K->" SIZE_FORMAT "K [eden=" SIZE_FORMAT "K,survivor=" SIZE_FORMAT "K]",
419 new_size_before/K, _virtual_space.committed_size()/K,
420 eden()->capacity()/K, from()->capacity()/K);
421 log_trace(gc, ergo, heap)(
422 " [allowed " SIZE_FORMAT "K extra for %d threads]",
423 thread_increase_size/K, threads_count);
424 }
425 }
426
427
428 size_t DefNewGeneration::capacity() const {
429 return eden()->capacity()
430 + from()->capacity(); // to() is only used during scavenge
431 }
432
433
434 size_t DefNewGeneration::used() const {
435 return eden()->used()
436 + from()->used(); // to() is only used during scavenge
437 }
438
439
440 size_t DefNewGeneration::free() const {
441 return eden()->free()
442 + from()->free(); // to() is only used during scavenge
443 }
444
445 size_t DefNewGeneration::max_capacity() const {
446 const size_t reserved_bytes = reserved().byte_size();
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