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8300184: Optimize ResourceHashtableBase::iterate_all using _number_of_entries

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Reviewed-by: dholmes, rehn
This commit is contained in:
Xin Liu 2023-01-17 17:09:25 +00:00
parent 75b122feea
commit 0b9ff06f3a
1 changed files with 5 additions and 2 deletions

7
src/hotspot/share/utilities/resourceHash.hpp

@ -1,5 +1,5 @@
/*
* Copyright (c) 2012, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2023, 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
@ -228,12 +228,15 @@ class ResourceHashtableBase : public STORAGE {
void iterate(Function function) const { // lambda enabled API
Node* const* bucket = table();
const unsigned sz = table_size();
while (bucket < bucket_at(sz)) {
int cnt = _number_of_entries;
while (cnt > 0 && bucket < bucket_at(sz)) {
Node* node = *bucket;
while (node != NULL) {
bool cont = function(node->_key, node->_value);
if (!cont) { return; }
node = node->_next;
--cnt;
}
++bucket;
}