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// SPDX-License-Identifier: BSD-2-Clause
/* Copyright (C) 2021 Intel Corporation. */
#include <memkind.h>
#include <memkind/internal/memkind_private.h>
#include <sys/mman.h>
#include "TestPrereq.hpp"
#include "common.h"
class MemkindGetCapacityTests: public ::testing::Test
{
protected:
TestPrereq tp;
};
class MemkindGetCapacityTestsDaxKmem: public ::testing::Test
{
protected:
TestPrereq tp;
void SetUp()
{
if (!tp.is_DAX_KMEM_supported()) {
GTEST_SKIP() << "DAX KMEM is required." << std::endl;
}
}
};
class MemkindGetCapacityTestsPreferredParam: public ::Memkind_Param_Test
{
protected:
TestPrereq tp;
};
class MemkindGetCapacityTestsFixedKindParam
: public ::testing::Test,
public ::testing::WithParamInterface<size_t>
{
};
INSTANTIATE_TEST_CASE_P(MmappedTest, MemkindGetCapacityTestsFixedKindParam,
::testing::Values(1024 * 1024 * 512, 0, 1024, 25, 87));
INSTANTIATE_TEST_CASE_P(
KindParam, MemkindGetCapacityTestsPreferredParam,
::testing::Values(MEMKIND_HBW_PREFERRED, MEMKIND_HBW_PREFERRED_HUGETLB,
MEMKIND_HBW_PREFERRED_GBTLB, MEMKIND_DAX_KMEM_PREFERRED,
MEMKIND_HIGHEST_CAPACITY_PREFERRED,
MEMKIND_HIGHEST_CAPACITY_LOCAL_PREFERRED,
MEMKIND_LOWEST_LATENCY_LOCAL_PREFERRED,
MEMKIND_HIGHEST_BANDWIDTH_LOCAL_PREFERRED));
TEST_F(MemkindGetCapacityTests, test_tc_memkind_verify_capacity_fsdax)
{
const char *dir = "/tmp";
ssize_t max_size = 2 * MEMKIND_PMEM_MIN_SIZE;
struct memkind *kind = NULL;
memkind_create_pmem(dir, max_size, &kind);
ASSERT_EQ(max_size, memkind_get_capacity(kind));
max_size = 0;
memkind_create_pmem(dir, max_size, &kind);
ASSERT_GT(memkind_get_capacity(kind), 0);
memkind_destroy_kind(kind);
}
TEST_P(MemkindGetCapacityTestsFixedKindParam,
test_tc_memkind_verify_capacity_mmapped)
{
const size_t MMAPPED_SIZE = GetParam();
void *addr = mmap(NULL, MMAPPED_SIZE, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
struct memkind *kind = NULL;
memkind_create_fixed(addr, MMAPPED_SIZE, &kind);
ASSERT_EQ((const ssize_t)MMAPPED_SIZE, memkind_get_capacity(kind));
memkind_destroy_kind(kind);
munmap(addr, MMAPPED_SIZE);
}
TEST_F(MemkindGetCapacityTests, test_tc_memkind_verify_capacity_default)
{
int status = numa_available();
ASSERT_EQ(status, 0);
auto numa_nodes = tp.get_all_numa_nodes();
ssize_t capacity = tp.get_capacity(numa_nodes);
ASSERT_GT(capacity, 0);
ASSERT_EQ(capacity, memkind_get_capacity(MEMKIND_DEFAULT));
}
TEST_F(MemkindGetCapacityTests, test_tc_memkind_verify_capacity_high_cap)
{
int status = numa_available();
ASSERT_EQ(status, 0);
ssize_t capacity = -1;
ssize_t highest_capacity = -1;
auto numa_nodes = tp.get_all_numa_nodes();
for (auto node_id : numa_nodes) {
long long node_capacity = numa_node_size64(node_id, NULL);
if (node_capacity > highest_capacity) {
highest_capacity = node_capacity;
capacity = node_capacity;
} else if (node_capacity == highest_capacity) {
capacity += node_capacity;
}
}
ASSERT_GT(capacity, 0);
ASSERT_EQ(capacity, memkind_get_capacity(MEMKIND_HIGHEST_CAPACITY));
}
TEST_F(MemkindGetCapacityTests, test_tc_memkind_verify_capacity_hugetlb)
{
size_t size = 1 * MB;
memkind_t kind = MEMKIND_HUGETLB;
void *ptr = memkind_malloc(kind, size);
if (ptr == NULL) {
GTEST_SKIP() << "Cannot allocate using " << kind->name
<< " kind. Check if hugepages are available." << std::endl;
}
memkind_free(kind, ptr);
ASSERT_GT(memkind_get_capacity(kind), 0);
}
TEST_F(MemkindGetCapacityTests, test_tc_memkind_verify_capacity_interleave)
{
int status = numa_available();
ASSERT_EQ(status, 0);
auto numa_nodes = tp.get_all_numa_nodes();
ssize_t capacity = tp.get_capacity(numa_nodes);
ASSERT_GT(capacity, 0);
ASSERT_EQ(capacity, memkind_get_capacity(MEMKIND_INTERLEAVE));
}
TEST_F(MemkindGetCapacityTests, test_tc_memkind_verify_capacity_regular)
{
int status = numa_available();
ASSERT_EQ(status, 0);
auto numa_nodes = tp.get_regular_numa_nodes();
ssize_t capacity = tp.get_capacity(numa_nodes);
ASSERT_GT(capacity, 0);
memkind_t kind = MEMKIND_REGULAR;
void *ptr = memkind_malloc(kind, KB);
ASSERT_NE(nullptr, ptr);
memset(ptr, 'a', KB);
ASSERT_EQ(capacity, memkind_get_capacity(kind));
memkind_free(kind, ptr);
}
TEST_F(MemkindGetCapacityTestsDaxKmem, test_tc_memkind_verify_capacity_dax_kmem)
{
int status = numa_available();
ASSERT_EQ(status, 0);
memkind_t kind = MEMKIND_DAX_KMEM;
int process_cpu = sched_getcpu();
int process_node = numa_node_of_cpu(process_cpu);
auto dax_kmem_nodes = tp.get_memory_only_numa_nodes();
auto numa_nodes = tp.get_closest_numa_nodes(process_node, dax_kmem_nodes);
ssize_t capacity = tp.get_capacity(numa_nodes);
ASSERT_GT(capacity, 0);
ASSERT_EQ(capacity, memkind_get_capacity(kind));
}
TEST_F(MemkindGetCapacityTestsDaxKmem,
test_tc_memkind_verify_capacity_dax_kmem_all)
{
int status = numa_available();
ASSERT_EQ(status, 0);
memkind_t kind = MEMKIND_DAX_KMEM_ALL;
auto numa_nodes = tp.get_memory_only_numa_nodes();
ssize_t capacity = tp.get_capacity(numa_nodes);
ASSERT_GT(capacity, 0);
ASSERT_EQ(capacity, memkind_get_capacity(kind));
}
TEST_F(MemkindGetCapacityTestsDaxKmem,
test_tc_memkind_verify_capacity_dax_kmem_interleave)
{
int status = numa_available();
ASSERT_EQ(status, 0);
memkind_t kind = MEMKIND_DAX_KMEM_INTERLEAVE;
auto numa_nodes = tp.get_memory_only_numa_nodes();
ssize_t capacity = tp.get_capacity(numa_nodes);
ASSERT_GT(capacity, 0);
ASSERT_EQ(capacity, memkind_get_capacity(kind));
}
TEST_P(MemkindGetCapacityTestsPreferredParam,
test_tc_memkind_verify_capacity_preferred_kinds)
{
int status = numa_available();
ASSERT_EQ(status, 0);
// Expect the function to fail (unsupported kinds)
int expected_ret_code = -1;
ASSERT_EQ(expected_ret_code, memkind_get_capacity(memory_kind));
}
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