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PojavLauncherTeam
GitHub Repository: PojavLauncherTeam/mobile
 Path: blob/master/test/hotspot/gtest/metaspace/test_arenagrowthpolicy.cpp
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/*

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 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.

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 * Copyright (c) 2020 SAP SE. 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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 */

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#include "precompiled.hpp"

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#include "memory/metaspace.hpp"

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#include "memory/metaspace/chunklevel.hpp"

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#include "memory/metaspace/metaspaceArenaGrowthPolicy.hpp"

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//#define LOG_PLEASE

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#include "metaspaceGtestCommon.hpp"

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using metaspace::ArenaGrowthPolicy;

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using metaspace::chunklevel_t;

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using namespace metaspace::chunklevel;

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static void test_arena_growth_policy(Metaspace::MetaspaceType spacetype, bool is_class) {

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  const ArenaGrowthPolicy* a =

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      ArenaGrowthPolicy::policy_for_space_type((Metaspace::MetaspaceType)spacetype, is_class);

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  // initial level

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  chunklevel_t lvl = a->get_level_at_step(0);

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  ASSERT_TRUE(is_valid_level(lvl));

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  if (spacetype != Metaspace::BootMetaspaceType) {

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    // All types save boot loader should start with small or very small chunks

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    ASSERT_GE(lvl, CHUNK_LEVEL_4K);

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  }

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  for (int step = 1; step < 100; step++) {

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    chunklevel_t lvl2 = a->get_level_at_step(step);

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    ASSERT_TRUE(is_valid_level(lvl2));

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    // limit steepness: no growth allowed beyond last chunksize * 2

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    ASSERT_LE(word_size_for_level(lvl2), word_size_for_level(lvl) * 2);

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    lvl = lvl2;

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  }

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}

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#define DEFINE_GROWTH_POLICY_TEST(spacetype, is_class) \

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TEST_VM(metaspace, arena_growth_policy_##spacetype##_##is_class) { \

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  test_arena_growth_policy(Metaspace::spacetype, is_class); \

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}

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DEFINE_GROWTH_POLICY_TEST(ReflectionMetaspaceType, true)

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DEFINE_GROWTH_POLICY_TEST(ReflectionMetaspaceType, false)

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DEFINE_GROWTH_POLICY_TEST(ClassMirrorHolderMetaspaceType, true)

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DEFINE_GROWTH_POLICY_TEST(ClassMirrorHolderMetaspaceType, false)

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DEFINE_GROWTH_POLICY_TEST(StandardMetaspaceType, true)

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DEFINE_GROWTH_POLICY_TEST(StandardMetaspaceType, false)

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DEFINE_GROWTH_POLICY_TEST(BootMetaspaceType, true)

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DEFINE_GROWTH_POLICY_TEST(BootMetaspaceType, false)

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