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rocksdb/memory/memory_allocator_test.cc

240 lines
8.1 KiB

// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// Copyright (c) 2019 Intel Corporation
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include <cstdio>
#include "memory/jemalloc_nodump_allocator.h"
#include "memory/memkind_kmem_allocator.h"
#include "rocksdb/cache.h"
#include "rocksdb/convenience.h"
#include "rocksdb/db.h"
#include "rocksdb/options.h"
#include "table/block_based/block_based_table_factory.h"
#include "test_util/testharness.h"
#include "utilities/memory_allocators.h"
namespace ROCKSDB_NAMESPACE {
// TODO: the tests do not work in LITE mode due to relying on
// `CreateFromString()` to create non-default memory allocators.
#ifndef ROCKSDB_LITE
class MemoryAllocatorTest
: public testing::Test,
public ::testing::WithParamInterface<std::tuple<std::string, bool>> {
public:
MemoryAllocatorTest() {
std::tie(id_, supported_) = GetParam();
Status s =
MemoryAllocator::CreateFromString(ConfigOptions(), id_, &allocator_);
EXPECT_EQ(supported_, s.ok());
}
bool IsSupported() { return supported_; }
std::shared_ptr<MemoryAllocator> allocator_;
std::string id_;
private:
bool supported_;
};
TEST_P(MemoryAllocatorTest, Allocate) {
if (!IsSupported()) {
return;
}
void* p = allocator_->Allocate(1024);
ASSERT_NE(p, nullptr);
size_t size = allocator_->UsableSize(p, 1024);
ASSERT_GE(size, 1024);
allocator_->Deallocate(p);
}
TEST_P(MemoryAllocatorTest, CreateAllocator) {
ConfigOptions config_options;
config_options.ignore_unknown_options = false;
config_options.ignore_unsupported_options = false;
std::shared_ptr<MemoryAllocator> orig, copy;
Status s = MemoryAllocator::CreateFromString(config_options, id_, &orig);
if (!IsSupported()) {
ASSERT_TRUE(s.IsNotSupported());
} else {
ASSERT_OK(s);
ASSERT_NE(orig, nullptr);
#ifndef ROCKSDB_LITE
std::string str = orig->ToString(config_options);
ASSERT_OK(MemoryAllocator::CreateFromString(config_options, str, &copy));
ASSERT_EQ(orig, copy);
#endif // ROCKSDB_LITE
}
}
TEST_P(MemoryAllocatorTest, DatabaseBlockCache) {
if (!IsSupported()) {
// Check if a memory node is available for allocation
}
// Create database with block cache using the MemoryAllocator
Options options;
std::string dbname = test::PerThreadDBPath("allocator_test");
ASSERT_OK(DestroyDB(dbname, options));
options.create_if_missing = true;
BlockBasedTableOptions table_options;
auto cache = NewLRUCache(1024 * 1024, 6, false, 0.0, allocator_);
table_options.block_cache = cache;
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
DB* db = nullptr;
Status s = DB::Open(options, dbname, &db);
ASSERT_OK(s);
ASSERT_NE(db, nullptr);
ASSERT_LE(cache->GetUsage(), 104); // Cache will contain stats
// Write 2kB (200 values, each 10 bytes)
int num_keys = 200;
WriteOptions wo;
std::string val = "0123456789";
for (int i = 0; i < num_keys; i++) {
std::string key = std::to_string(i);
s = db->Put(wo, Slice(key), Slice(val));
ASSERT_OK(s);
}
ASSERT_OK(db->Flush(FlushOptions())); // Flush all data from memtable so that
// reads are from block cache
// Read and check block cache usage
ReadOptions ro;
std::string result;
for (int i = 0; i < num_keys; i++) {
std::string key = std::to_string(i);
s = db->Get(ro, key, &result);
ASSERT_OK(s);
ASSERT_EQ(result, val);
}
ASSERT_GT(cache->GetUsage(), 2000);
// Close database
s = db->Close();
ASSERT_OK(s);
delete db;
ASSERT_OK(DestroyDB(dbname, options));
}
class CreateMemoryAllocatorTest : public testing::Test {
public:
CreateMemoryAllocatorTest() {
config_options_.ignore_unknown_options = false;
config_options_.ignore_unsupported_options = false;
}
ConfigOptions config_options_;
};
TEST_F(CreateMemoryAllocatorTest, JemallocOptionsTest) {
std::shared_ptr<MemoryAllocator> allocator;
std::string id = std::string("id=") + JemallocNodumpAllocator::kClassName();
Status s = MemoryAllocator::CreateFromString(config_options_, id, &allocator);
if (!JemallocNodumpAllocator::IsSupported()) {
ASSERT_NOK(s);
ROCKSDB_GTEST_BYPASS("JEMALLOC not supported");
return;
}
ASSERT_OK(s);
ASSERT_NE(allocator, nullptr);
JemallocAllocatorOptions jopts;
auto opts = allocator->GetOptions<JemallocAllocatorOptions>();
ASSERT_NE(opts, nullptr);
ASSERT_EQ(opts->limit_tcache_size, jopts.limit_tcache_size);
ASSERT_EQ(opts->tcache_size_lower_bound, jopts.tcache_size_lower_bound);
ASSERT_EQ(opts->tcache_size_upper_bound, jopts.tcache_size_upper_bound);
ASSERT_NOK(MemoryAllocator::CreateFromString(
config_options_,
id + "; limit_tcache_size=true; tcache_size_lower_bound=4096; "
"tcache_size_upper_bound=1024",
&allocator));
ASSERT_OK(MemoryAllocator::CreateFromString(
config_options_,
id + "; limit_tcache_size=false; tcache_size_lower_bound=4096; "
"tcache_size_upper_bound=1024",
&allocator));
opts = allocator->GetOptions<JemallocAllocatorOptions>();
ASSERT_NE(opts, nullptr);
ASSERT_EQ(opts->limit_tcache_size, false);
ASSERT_EQ(opts->tcache_size_lower_bound, 4096U);
ASSERT_EQ(opts->tcache_size_upper_bound, 1024U);
ASSERT_OK(MemoryAllocator::CreateFromString(
config_options_,
id + "; limit_tcache_size=true; tcache_size_upper_bound=4096; "
"tcache_size_lower_bound=1024",
&allocator));
opts = allocator->GetOptions<JemallocAllocatorOptions>();
ASSERT_NE(opts, nullptr);
ASSERT_EQ(opts->limit_tcache_size, true);
ASSERT_EQ(opts->tcache_size_lower_bound, 1024U);
ASSERT_EQ(opts->tcache_size_upper_bound, 4096U);
}
TEST_F(CreateMemoryAllocatorTest, NewJemallocNodumpAllocator) {
JemallocAllocatorOptions jopts;
std::shared_ptr<MemoryAllocator> allocator;
jopts.limit_tcache_size = true;
jopts.tcache_size_lower_bound = 2 * 1024;
jopts.tcache_size_upper_bound = 1024;
ASSERT_NOK(NewJemallocNodumpAllocator(jopts, nullptr));
Status s = NewJemallocNodumpAllocator(jopts, &allocator);
std::string msg;
if (!JemallocNodumpAllocator::IsSupported(&msg)) {
ASSERT_NOK(s);
ROCKSDB_GTEST_BYPASS("JEMALLOC not supported");
return;
}
ASSERT_NOK(s); // Invalid options
ASSERT_EQ(allocator, nullptr);
jopts.tcache_size_upper_bound = 4 * 1024;
ASSERT_OK(NewJemallocNodumpAllocator(jopts, &allocator));
ASSERT_NE(allocator, nullptr);
auto opts = allocator->GetOptions<JemallocAllocatorOptions>();
ASSERT_EQ(opts->tcache_size_upper_bound, jopts.tcache_size_upper_bound);
ASSERT_EQ(opts->tcache_size_lower_bound, jopts.tcache_size_lower_bound);
ASSERT_EQ(opts->limit_tcache_size, jopts.limit_tcache_size);
jopts.limit_tcache_size = false;
ASSERT_OK(NewJemallocNodumpAllocator(jopts, &allocator));
ASSERT_NE(allocator, nullptr);
opts = allocator->GetOptions<JemallocAllocatorOptions>();
ASSERT_EQ(opts->tcache_size_upper_bound, jopts.tcache_size_upper_bound);
ASSERT_EQ(opts->tcache_size_lower_bound, jopts.tcache_size_lower_bound);
ASSERT_EQ(opts->limit_tcache_size, jopts.limit_tcache_size);
}
INSTANTIATE_TEST_CASE_P(DefaultMemoryAllocator, MemoryAllocatorTest,
::testing::Values(std::make_tuple(
DefaultMemoryAllocator::kClassName(), true)));
#ifdef MEMKIND
INSTANTIATE_TEST_CASE_P(
MemkindkMemAllocator, MemoryAllocatorTest,
::testing::Values(std::make_tuple(MemkindKmemAllocator::kClassName(),
MemkindKmemAllocator::IsSupported())));
#endif // MEMKIND
#ifdef ROCKSDB_JEMALLOC
INSTANTIATE_TEST_CASE_P(
JemallocNodumpAllocator, MemoryAllocatorTest,
::testing::Values(std::make_tuple(JemallocNodumpAllocator::kClassName(),
JemallocNodumpAllocator::IsSupported())));
#endif // ROCKSDB_JEMALLOC
#endif // ROCKSDB_LITE
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}