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#include "aligned_page_pool.h"
#include <library/cpp/testing/unittest/registar.h>
#include <util/system/info.h>
namespace NKikimr {
namespace NMiniKQL {
Y_UNIT_TEST_SUITE(TAlignedPagePoolTest) {
Y_UNIT_TEST(AlignedMmapPageSize) {
TAlignedPagePool::ResetGlobalsUT();
TAlignedPagePoolImpl<TFakeAlignedMmap> alloc(__LOCATION__);
int munmaps = 0;
TFakeAlignedMmap::OnMunmap = [&](void* addr, size_t s) {
Y_UNUSED(addr);
Y_UNUSED(s);
munmaps ++;
};
auto size = TAlignedPagePool::POOL_PAGE_SIZE;
auto block = std::shared_ptr<void>(alloc.GetBlock(size), [&](void* addr) { alloc.ReturnBlock(addr, size); });
TFakeAlignedMmap::OnMunmap = {};
UNIT_ASSERT_EQUAL(0, munmaps);
UNIT_ASSERT_VALUES_EQUAL(reinterpret_cast<uintptr_t>(block.get()), TAlignedPagePool::POOL_PAGE_SIZE);
UNIT_ASSERT_VALUES_EQUAL(alloc.GetFreePageCount()
, TAlignedPagePool::ALLOC_AHEAD_PAGES);
UNIT_ASSERT_VALUES_EQUAL(alloc.GetAllocated()
, TAlignedPagePool::POOL_PAGE_SIZE + TAlignedPagePool::ALLOC_AHEAD_PAGES*TAlignedPagePool::POOL_PAGE_SIZE
);
}
Y_UNIT_TEST(UnalignedMmapPageSize) {
TAlignedPagePool::ResetGlobalsUT();
TAlignedPagePoolImpl<TFakeUnalignedMmap> alloc(__LOCATION__);
int munmaps = 0;
TFakeUnalignedMmap::OnMunmap = [&](void* addr, size_t s) {
Y_UNUSED(addr);
if (munmaps == 0) {
UNIT_ASSERT_VALUES_EQUAL(s, TAlignedPagePool::POOL_PAGE_SIZE - 1);
} else {
UNIT_ASSERT_VALUES_EQUAL(s, 1);
}
munmaps ++;
};
auto size = TAlignedPagePool::POOL_PAGE_SIZE;
auto block = std::shared_ptr<void>(alloc.GetBlock(size), [&](void* addr) { alloc.ReturnBlock(addr, size); });
TFakeUnalignedMmap::OnMunmap = {};
UNIT_ASSERT_EQUAL(2, munmaps);
UNIT_ASSERT_VALUES_EQUAL(reinterpret_cast<uintptr_t>(block.get()), 2 * TAlignedPagePool::POOL_PAGE_SIZE);
UNIT_ASSERT_VALUES_EQUAL(alloc.GetFreePageCount()
, TAlignedPagePool::ALLOC_AHEAD_PAGES - 1);
UNIT_ASSERT_VALUES_EQUAL(alloc.GetAllocated()
, TAlignedPagePool::POOL_PAGE_SIZE + (TAlignedPagePool::ALLOC_AHEAD_PAGES - 1) * TAlignedPagePool::POOL_PAGE_SIZE
);
}
Y_UNIT_TEST(AlignedMmapUnalignedSize) {
TAlignedPagePool::ResetGlobalsUT();
TAlignedPagePoolImpl<TFakeAlignedMmap> alloc(__LOCATION__);
auto smallSize = NSystemInfo::GetPageSize();
auto size = smallSize + 1024 * TAlignedPagePool::POOL_PAGE_SIZE;
int munmaps = 0;
TFakeAlignedMmap::OnMunmap = [&](void* addr, size_t s) {
if (munmaps == 0) {
UNIT_ASSERT_VALUES_EQUAL(s, TAlignedPagePool::POOL_PAGE_SIZE - smallSize);
UNIT_ASSERT_VALUES_EQUAL(reinterpret_cast<uintptr_t>(addr), TAlignedPagePool::POOL_PAGE_SIZE + size);
} else {
UNIT_ASSERT_VALUES_EQUAL(s, smallSize);
UNIT_ASSERT_VALUES_EQUAL(reinterpret_cast<uintptr_t>(addr), TAlignedPagePool::POOL_PAGE_SIZE + TAlignedPagePool::ALLOC_AHEAD_PAGES * TAlignedPagePool::POOL_PAGE_SIZE + size - smallSize);
}
munmaps ++;
};
auto block = std::shared_ptr<void>(alloc.GetBlock(size), [&](void* addr) { alloc.ReturnBlock(addr, size); });
TFakeAlignedMmap::OnMunmap = {};
UNIT_ASSERT_EQUAL(2, munmaps);
UNIT_ASSERT_VALUES_EQUAL(reinterpret_cast<uintptr_t>(block.get()), TAlignedPagePool::POOL_PAGE_SIZE);
UNIT_ASSERT_VALUES_EQUAL(alloc.GetFreePageCount()
, TAlignedPagePool::ALLOC_AHEAD_PAGES - 1);
UNIT_ASSERT_VALUES_EQUAL(alloc.GetAllocated()
, size + (TAlignedPagePool::ALLOC_AHEAD_PAGES - 1) * TAlignedPagePool::POOL_PAGE_SIZE
);
}
Y_UNIT_TEST(UnalignedMmapUnalignedSize) {
TAlignedPagePool::ResetGlobalsUT();
TAlignedPagePoolImpl<TFakeUnalignedMmap> alloc(__LOCATION__);
auto smallSize = NSystemInfo::GetPageSize();
auto size = smallSize + 1024 * TAlignedPagePool::POOL_PAGE_SIZE;
int munmaps = 0;
TFakeUnalignedMmap::OnMunmap = [&](void* addr, size_t s) {
Y_UNUSED(addr);
if (munmaps == 0) {
UNIT_ASSERT_VALUES_EQUAL(s, TAlignedPagePool::POOL_PAGE_SIZE - 1);
} else if (munmaps == 1) {
UNIT_ASSERT_VALUES_EQUAL(s, TAlignedPagePool::POOL_PAGE_SIZE - smallSize);
} else {
UNIT_ASSERT_VALUES_EQUAL(s, smallSize + 1);
}
munmaps ++;
};
auto block = std::shared_ptr<void>(alloc.GetBlock(size), [&](void* addr) { alloc.ReturnBlock(addr, size); });
TFakeUnalignedMmap::OnMunmap = {};
UNIT_ASSERT_EQUAL(3, munmaps);
UNIT_ASSERT_VALUES_EQUAL(reinterpret_cast<uintptr_t>(block.get()), 2 * TAlignedPagePool::POOL_PAGE_SIZE);
UNIT_ASSERT_VALUES_EQUAL(alloc.GetFreePageCount()
, TAlignedPagePool::ALLOC_AHEAD_PAGES - 2);
UNIT_ASSERT_VALUES_EQUAL(alloc.GetAllocated()
, size + (TAlignedPagePool::ALLOC_AHEAD_PAGES - 2) * TAlignedPagePool::POOL_PAGE_SIZE
);
}
Y_UNIT_TEST(YellowZoneSwitchesCorrectlyBlock) {
TAlignedPagePool::ResetGlobalsUT();
TAlignedPagePoolImpl alloc(__LOCATION__);
// choose relatively big chunk so ALLOC_AHEAD_PAGES don't affect the correctness of the test
auto size = 1024 * TAlignedPagePool::POOL_PAGE_SIZE;
alloc.SetLimit(size * 10);
// 50% allocated -> no yellow zone
auto block1 = alloc.GetBlock(size * 5);
UNIT_ASSERT_VALUES_EQUAL(false, alloc.IsMemoryYellowZoneEnabled());
// 70% allocated -> no yellow zone
auto block2 = alloc.GetBlock(size * 2);
UNIT_ASSERT_VALUES_EQUAL(false, alloc.IsMemoryYellowZoneEnabled());
// 90% allocated -> yellow zone is enabled (> 80%)
auto block3 = alloc.GetBlock(size * 2);
UNIT_ASSERT_VALUES_EQUAL(true, alloc.IsMemoryYellowZoneEnabled());
// 70% allocated -> yellow zone is still enabled (> 50%)
alloc.ReturnBlock(block3, size * 2);
UNIT_ASSERT_VALUES_EQUAL(true, alloc.IsMemoryYellowZoneEnabled());
// 50% allocated -> yellow zone is disabled
alloc.ReturnBlock(block2, size * 2);
UNIT_ASSERT_VALUES_EQUAL(false, alloc.IsMemoryYellowZoneEnabled());
// 0% allocated -> yellow zone is disabled
alloc.ReturnBlock(block1, size * 5);
UNIT_ASSERT_VALUES_EQUAL(false, alloc.IsMemoryYellowZoneEnabled());
}
Y_UNIT_TEST(YellowZoneZeroDivision) {
TAlignedPagePool::ResetGlobalsUT();
TAlignedPagePoolImpl alloc(__LOCATION__);
alloc.SetLimit(0);
UNIT_ASSERT_EQUAL(false, alloc.IsMemoryYellowZoneEnabled());
}
} // Y_UNIT_TEST_SUITE(TAlignedPagePoolTest)
} // namespace NMiniKQL
} // namespace NKikimr
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