181 lines
6.2 KiB
C++
181 lines
6.2 KiB
C++
/*
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* Copyright (c) 2021, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "precompiled.hpp"
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#include "gc/z/zIndexDistributor.inline.hpp"
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#include "unittest.hpp"
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class ZIndexDistributorTest : public ::testing::Test {
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protected:
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static void test_claim_tree_claim_level_size() {
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// max_index: 16, 16, 16, rest
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// claim level: 1, 16, 16 * 16, 16 * 16 * 16
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_size(0), 1);
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_size(1), 16);
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_size(2), 16 * 16);
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_size(3), 16 * 16 * 16);
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}
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static void test_claim_tree_claim_level_end_index() {
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// First level is padded
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const int first_level_end = int(ZCacheLineSize / sizeof(int));
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_end_index(0), first_level_end);
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_end_index(1), first_level_end + 16);
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_end_index(2), first_level_end + 16 + 16 * 16);
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_end_index(3), first_level_end + 16 + 16 * 16 + 16 * 16 * 16);
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}
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static void test_claim_tree_claim_index() {
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// First level should always give index 0
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{
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int indices[4] = {0, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 0), 0);
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}
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{
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int indices[4] = {1, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 0), 0);
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}
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{
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int indices[4] = {15, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 0), 0);
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}
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{
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int indices[4] = {16, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 0), 0);
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}
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// Second level should depend on first claimed index
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// Second-level start after first-level padding
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const int second_level_start = int(ZCacheLineSize / sizeof(int));
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{
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int indices[4] = {0, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 1), second_level_start);
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}
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{
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int indices[4] = {1, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 1), second_level_start + 1);
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}
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{
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int indices[4] = {15, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 1), second_level_start + 15);
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}
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// Third level
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const int third_level_start = second_level_start + 16;
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{
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int indices[4] = {0, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 2), third_level_start);
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}
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{
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int indices[4] = {1, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 2), third_level_start + 1 * 16);
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}
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{
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int indices[4] = {15, 0, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 2), third_level_start + 15 * 16);
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}
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{
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int indices[4] = {1, 2, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 2), third_level_start + 1 * 16 + 2);
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}
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{
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int indices[4] = {15, 14, 0, 0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_index(indices, 2), third_level_start + 15 * 16 + 14);
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}
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}
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static void test_claim_tree_claim_level_index() {
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{
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int indices[4] = {0,0,0,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 1), 0);
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}
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{
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int indices[4] = {1,0,0,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 1), 1);
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}
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{
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int indices[4] = {0,0,0,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 2), 0);
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}
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{
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int indices[4] = {1,0,0,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 2), 1 * 16);
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}
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{
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int indices[4] = {2,0,0,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 2), 2 * 16);
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}
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{
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int indices[4] = {2,1,0,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 2), 2 * 16 + 1);
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}
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{
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int indices[4] = {0,0,0,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 3), 0);
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}
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{
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int indices[4] = {1,0,0,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 3), 1 * 16 * 16);
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}
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{
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int indices[4] = {1,2,0,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 3), 1 * 16 * 16 + 2 * 16);
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}
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{
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int indices[4] = {1,2,1,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 3), 1 * 16 * 16 + 2 * 16 + 1);
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}
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{
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int indices[4] = {1,2,3,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 3), 1 * 16 * 16 + 2 * 16 + 3);
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}
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{
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int indices[4] = {1,2,3,0};
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ASSERT_EQ(ZIndexDistributorClaimTree::claim_level_index(indices, 2), 1 * 16 + 2);
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}
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}
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};
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TEST_F(ZIndexDistributorTest, test_claim_tree_claim_level_size) {
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test_claim_tree_claim_level_size();
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}
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TEST_F(ZIndexDistributorTest, test_claim_tree_claim_level_end_index) {
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test_claim_tree_claim_level_end_index();
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}
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TEST_F(ZIndexDistributorTest, test_claim_tree_claim_level_index) {
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test_claim_tree_claim_level_index();
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}
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TEST_F(ZIndexDistributorTest, test_claim_tree_claim_index) {
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test_claim_tree_claim_index();
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}
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