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comparison src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.cpp @ 22976:5788dbd1f2d6

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8066875: VirtualSpace does not use large pages Reviewed-by: stefank, tschatzl, anoll, thartmann
author ehelin
date Fri, 16 Jan 2015 10:29:12 +0100
parents c2ce24504334
children dd9cc155639c
comparison
equal deleted inserted replaced
22975:cc5c3ef1f03a 22976:5788dbd1f2d6
53 // an integral number of words. 53 // an integral number of words.
54 assert(bits % (BitsPerWord * 2) == 0, "region size unaligned"); 54 assert(bits % (BitsPerWord * 2) == 0, "region size unaligned");
55 55
56 const size_t words = bits / BitsPerWord; 56 const size_t words = bits / BitsPerWord;
57 const size_t raw_bytes = words * sizeof(idx_t); 57 const size_t raw_bytes = words * sizeof(idx_t);
58 const size_t page_sz = os::page_size_for_region(raw_bytes, 10); 58 const size_t page_sz = os::page_size_for_region_aligned(raw_bytes, 10);
59 const size_t granularity = os::vm_allocation_granularity(); 59 const size_t granularity = os::vm_allocation_granularity();
60 _reserved_byte_size = align_size_up(raw_bytes, MAX2(page_sz, granularity)); 60 _reserved_byte_size = align_size_up(raw_bytes, MAX2(page_sz, granularity));
61 61
62 const size_t rs_align = page_sz == (size_t) os::vm_page_size() ? 0 : 62 const size_t rs_align = page_sz == (size_t) os::vm_page_size() ? 0 :
63 MAX2(page_sz, granularity); 63 MAX2(page_sz, granularity);