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8073632: Make auxiliary data structures know their own translation factor

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Auxiliary data structures should have knowledge of their own requirements for virtual memory reservations instead of getting these values directly from various places.

Reviewed-by: stefank, kbarrett
This commit is contained in:
Thomas Schatzl 2015-04-27 10:04:26 +02:00
parent 689d9a58b1
commit e08169c253
6 changed files with 42 additions and 8 deletions
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13
hotspot/src/share/vm/gc_implementation/g1/g1CardCounts.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -39,6 +39,17 @@ void G1CardCountsMappingChangedListener::on_commit(uint start_idx, size_t num_re
_counts->clear_range(mr);
}
size_t G1CardCounts::compute_size(size_t mem_region_size_in_words) {
// We keep card counts for every card, so the size of the card counts table must
// be the same as the card table.
return G1SATBCardTableLoggingModRefBS::compute_size(mem_region_size_in_words);
}
size_t G1CardCounts::heap_map_factor() {
// See G1CardCounts::compute_size() why we reuse the card table value.
return G1SATBCardTableLoggingModRefBS::heap_map_factor();
}
void G1CardCounts::clear_range(size_t from_card_num, size_t to_card_num) {
if (has_count_table()) {
assert(from_card_num < to_card_num,