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LevelDB和ForestDB简单性能测试(含代码)
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测试环境简单说明
Windows下测试
硬件环境如下：
处理器：Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz
内 存：8GB
硬 盘：希捷 ST1000DM003
操作系统：Windows 10 企业版
编译说明：
两个都是使用VS2015编译的64位Release版本。运行时库采用动态多线程版本(MD)
Linux下测试
硬件环境如下：
处理器：Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz
内 存：8GB
硬 盘：金士顿64G SSD
操作系统：ArchLinux (Linux version 4.8.13-1-ARCH)
编译说明：
两个都是使用Gcc 6.2.1编译的x64版本，使用
-O2
参数优化。
测试结果
对
LevelDB
和
ForestDB
进行简单的性能测试。
两个都在
单线程
下进行
10000
次的
增删查改
测试，共测试5次。（这里测试的次数有点少，应该测试十万次以上的）
测试的时候可以发现（设置断点），Forest每次操作都将数据缓存在内存了，内存占用比较大。而LevelDB在添加的时候并没有缓存，但是在数据获取和修改的时候内存会变大。
总体上LevelDB占用内存小一点，但是linux下速度不及ForestDB(非常接近)。易用程度上，LevelB简单得多。磁盘占用的情况的话，Forest对磁盘使用比较少，这10000条数据占了13MB左右，而LevelDB则占了120MB左右。
Windows下测试结果
测试结果平均值对比直方图：
LevelDB 测试结果截图
ForestDB 测试结果截图
Linux下测试结果
测试结果平均值对比直方图：
LevelDB 测试结果截图
ForestDB 测试结果截图
测试代码
LevelDB测试代码
#include <cassert>
#include <string>
#include <iostream>
#include <chrono>
#include "leveldb/db.h"
#define TEST_FREQUENCY (10000)
char* randomstr()
{
static char buf[1024];
int len = rand() % 768 + 255;
for (int i = 0; i < len; ++i) {
buf[i] = 'A' + rand() % 26;
}
buf[len] = '\0';
return buf;
}
int main()
{
leveldb::DB* db;
leveldb::Options options;
options.create_if_missing = true;
// 打开数据库
leveldb::Status status = leveldb::DB::Open(options, "./testdb", &db);
assert(status.ok());
srand(2017);
std::string k[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
k[i] = (randomstr());
}
std::string v("壹贰叁肆伍陆柒捌玖拾");
v.append(v).append(v).append(v).append(v).append(v);
// 测试添加
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = db->Put(leveldb::WriteOptions(), k[i], v);
assert(status.ok());
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次添加耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试获取
{
auto start = std::chrono::system_clock::now();
std::string v2[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = db->Get(leveldb::ReadOptions(), k[i], &v2[i]);
assert(status.ok());
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次获取耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
// 验证获取结果是否正确
std::string ss;
for (int i = 0; i < TEST_FREQUENCY; ++i) {
if (v2[i] != v) {
std::cout << "第 " << i << " 个结果不正确" << std::endl;
std::cout << v2[i] << std::endl;
}
}
}
// 测试修改
{
auto start = std::chrono::system_clock::now();
v.append(v);
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = db->Put(leveldb::WriteOptions(), k[i], v);
assert(status.ok());
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次修改耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试删除
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = db->Delete(leveldb::WriteOptions(), k[i]);
assert(status.ok());
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次删除耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
delete db;
return 0;
}
Forest 测试代码
#include <cassert>
#include <string>
#include <iostream>
#include <chrono>
#include "libforestdb/forestdb.h"
#define TEST_FREQUENCY (10000)
char* randomstr()
{
static char buf[1024];
int len = rand() % 768 + 255;
for (int i = 0; i < len; ++i) {
buf[i] = 'A' + rand() % 26;
}
buf[len] = '\0';
return buf;
}
int main()
{
fdb_file_handle* fdbFileHandle = nullptr;
fdb_kvs_handle* fdbKvsHandle = nullptr;
fdb_status status;
// 初始化ForestDB
// 1、文件配置设置配置
fdb_config fileConfig = fdb_get_default_config();
{// WAL阈值4K
fileConfig.wal_threshold = 4096;
// 缓存大小64MB
fileConfig.buffercache_size = 64 * 1024 * 1024;
// 设置使用默认的kvs
fileConfig.multi_kv_instances = false;
// 关闭循环块复用
fileConfig.block_reusing_threshold = 100;
// 使用序列树
fileConfig.seqtree_opt = FDB_SEQTREE_USE;
}
// 2、使用设置的配置进行初始化
status = fdb_init(&fileConfig);
assert(status == FDB_RESULT_SUCCESS);
// 打开数据库
status = fdb_open(&fdbFileHandle, "./testdb", &fileConfig);
assert(status == FDB_RESULT_SUCCESS);
// 打开kvs
fdb_kvs_config kvsConfig = fdb_get_default_kvs_config();
status = fdb_kvs_open_default(fdbFileHandle, &fdbKvsHandle, &kvsConfig);
assert(status == FDB_RESULT_SUCCESS);
srand(2017);
std::string k[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
k[i] = (randomstr());
}
std::string v("壹贰叁肆伍陆柒捌玖拾");
v.append(v).append(v).append(v).append(v).append(v);
// 测试添加
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_set_kv(fdbKvsHandle, k[i].data(), k[i].size(), v.data(), v.size());
assert(status == FDB_RESULT_SUCCESS);
}
// 提交操作到磁盘(这里必须commit才能实际写入到磁盘)
fdb_commit(fdbFileHandle, FDB_COMMIT_NORMAL);
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次添加耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试获取
{
auto start = std::chrono::system_clock::now();
void* v2[TEST_FREQUENCY]; size_t v2len[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_get_kv(fdbKvsHandle, k[i].data(), k[i].size(), &v2[i], &v2len[i]);
assert(status == FDB_RESULT_SUCCESS);
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次获取耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
// 验证获取结果是否正确
std::string ss;
for (int i = 0; i < TEST_FREQUENCY; ++i) {
ss.assign((const char*)v2[i], v2len[i]);
if (ss != v) {
std::cout << "第 " << i << " 个结果不正确" << std::endl;
std::cout << ss << std::endl;
}
free(v2[i]);
}
}
// 测试修改
{
auto start = std::chrono::system_clock::now();
v.append(v);
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_set_kv(fdbKvsHandle, k[i].data(), k[i].size(), v.data(), v.size());
assert(status == FDB_RESULT_SUCCESS);
}
// 提交操作到磁盘(这里必须commit才能实际写入到磁盘)
fdb_commit(fdbFileHandle, FDB_COMMIT_NORMAL);
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次修改耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试删除
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_del_kv(fdbKvsHandle, k[i].data(), k[i].size());
assert(status == FDB_RESULT_SUCCESS);
}
// 提交操作到磁盘(这里必须commit才能实际写入到磁盘)
fdb_commit(fdbFileHandle, FDB_COMMIT_NORMAL);
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次删除耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 关闭数据库
status = fdb_kvs_close(fdbKvsHandle);
assert(status == FDB_RESULT_SUCCESS);
status = fdb_close(fdbFileHandle);
assert(status == FDB_RESULT_SUCCESS);
status = fdb_shutdown();
assert(status == FDB_RESULT_SUCCESS);
return 0;
}
#include <cassert>
#include <string>
#include <iostream>
#include <chrono>
#include "leveldb/db.h"
#define TEST_FREQUENCY (10000)
char* randomstr()
{
static char buf[1024];
int len = rand() % 768 + 255;
for (int i = 0; i < len; ++i) {
buf[i] = 'A' + rand() % 26;
}
buf[len] = '\0';
return buf;
}
int main()
{
leveldb::DB* db;
leveldb::Options options;
options.create_if_missing = true;
// 打开数据库
leveldb::Status status = leveldb::DB::Open(options, "./testdb", &db);
assert(status.ok());
srand(2017);
std::string k[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
k[i] = (randomstr());
}
std::string v("壹贰叁肆伍陆柒捌玖拾");
v.append(v).append(v).append(v).append(v).append(v);
// 测试添加
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = db->Put(leveldb::WriteOptions(), k[i], v);
assert(status.ok());
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次添加耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试获取
{
auto start = std::chrono::system_clock::now();
std::string v2[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = db->Get(leveldb::ReadOptions(), k[i], &v2[i]);
assert(status.ok());
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次获取耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
// 验证获取结果是否正确
std::string ss;
for (int i = 0; i < TEST_FREQUENCY; ++i) {
if (v2[i] != v) {
std::cout << "第 " << i << " 个结果不正确" << std::endl;
std::cout << v2[i] << std::endl;
}
}
}
// 测试修改
{
auto start = std::chrono::system_clock::now();
v.append(v);
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = db->Put(leveldb::WriteOptions(), k[i], v);
assert(status.ok());
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次修改耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试删除
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = db->Delete(leveldb::WriteOptions(), k[i]);
assert(status.ok());
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次删除耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
delete db;
return 0;
}
Forest 测试代码
#include <cassert>
#include <string>
#include <iostream>
#include <chrono>
#include "libforestdb/forestdb.h"
#define TEST_FREQUENCY (10000)
char* randomstr()
{
static char buf[1024];
int len = rand() % 768 + 255;
for (int i = 0; i < len; ++i) {
buf[i] = 'A' + rand() % 26;
}
buf[len] = '\0';
return buf;
}
int main()
{
fdb_file_handle* fdbFileHandle = nullptr;
fdb_kvs_handle* fdbKvsHandle = nullptr;
fdb_status status;
// 初始化ForestDB
// 1、文件配置设置配置
fdb_config fileConfig = fdb_get_default_config();
{// WAL阈值4K
fileConfig.wal_threshold = 4096;
// 缓存大小64MB
fileConfig.buffercache_size = 64 * 1024 * 1024;
// 设置使用默认的kvs
fileConfig.multi_kv_instances = false;
// 关闭循环块复用
fileConfig.block_reusing_threshold = 100;
// 使用序列树
fileConfig.seqtree_opt = FDB_SEQTREE_USE;
}
// 2、使用设置的配置进行初始化
status = fdb_init(&fileConfig);
assert(status == FDB_RESULT_SUCCESS);
// 打开数据库
status = fdb_open(&fdbFileHandle, "./testdb", &fileConfig);
assert(status == FDB_RESULT_SUCCESS);
// 打开kvs
fdb_kvs_config kvsConfig = fdb_get_default_kvs_config();
status = fdb_kvs_open_default(fdbFileHandle, &fdbKvsHandle, &kvsConfig);
assert(status == FDB_RESULT_SUCCESS);
srand(2017);
std::string k[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
k[i] = (randomstr());
}
std::string v("壹贰叁肆伍陆柒捌玖拾");
v.append(v).append(v).append(v).append(v).append(v);
// 测试添加
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_set_kv(fdbKvsHandle, k[i].data(), k[i].size(), v.data(), v.size());
assert(status == FDB_RESULT_SUCCESS);
}
// 提交操作到磁盘(这里必须commit才能实际写入到磁盘)
fdb_commit(fdbFileHandle, FDB_COMMIT_NORMAL);
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次添加耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试获取
{
auto start = std::chrono::system_clock::now();
void* v2[TEST_FREQUENCY]; size_t v2len[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_get_kv(fdbKvsHandle, k[i].data(), k[i].size(), &v2[i], &v2len[i]);
assert(status == FDB_RESULT_SUCCESS);
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次获取耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
// 验证获取结果是否正确
std::string ss;
for (int i = 0; i < TEST_FREQUENCY; ++i) {
ss.assign((const char*)v2[i], v2len[i]);
if (ss != v) {
std::cout << "第 " << i << " 个结果不正确" << std::endl;
std::cout << ss << std::endl;
}
free(v2[i]);
}
}
// 测试修改
{
auto start = std::chrono::system_clock::now();
v.append(v);
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_set_kv(fdbKvsHandle, k[i].data(), k[i].size(), v.data(), v.size());
assert(status == FDB_RESULT_SUCCESS);
}
// 提交操作到磁盘(这里必须commit才能实际写入到磁盘)
fdb_commit(fdbFileHandle, FDB_COMMIT_NORMAL);
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次修改耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试删除
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_del_kv(fdbKvsHandle, k[i].data(), k[i].size());
assert(status == FDB_RESULT_SUCCESS);
}
// 提交操作到磁盘(这里必须commit才能实际写入到磁盘)
fdb_commit(fdbFileHandle, FDB_COMMIT_NORMAL);
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次删除耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 关闭数据库
status = fdb_kvs_close(fdbKvsHandle);
assert(status == FDB_RESULT_SUCCESS);
status = fdb_close(fdbFileHandle);
assert(status == FDB_RESULT_SUCCESS);
status = fdb_shutdown();
assert(status == FDB_RESULT_SUCCESS);
return 0;
}
#include <cassert>
#include <string>
#include <iostream>
#include <chrono>
#include "libforestdb/forestdb.h"
#define TEST_FREQUENCY (10000)
char* randomstr()
{
static char buf[1024];
int len = rand() % 768 + 255;
for (int i = 0; i < len; ++i) {
buf[i] = 'A' + rand() % 26;
}
buf[len] = '\0';
return buf;
}
int main()
{
fdb_file_handle* fdbFileHandle = nullptr;
fdb_kvs_handle* fdbKvsHandle = nullptr;
fdb_status status;
// 初始化ForestDB
// 1、文件配置设置配置
fdb_config fileConfig = fdb_get_default_config();
{// WAL阈值4K
fileConfig.wal_threshold = 4096;
// 缓存大小64MB
fileConfig.buffercache_size = 64 * 1024 * 1024;
// 设置使用默认的kvs
fileConfig.multi_kv_instances = false;
// 关闭循环块复用
fileConfig.block_reusing_threshold = 100;
// 使用序列树
fileConfig.seqtree_opt = FDB_SEQTREE_USE;
}
// 2、使用设置的配置进行初始化
status = fdb_init(&fileConfig);
assert(status == FDB_RESULT_SUCCESS);
// 打开数据库
status = fdb_open(&fdbFileHandle, "./testdb", &fileConfig);
assert(status == FDB_RESULT_SUCCESS);
// 打开kvs
fdb_kvs_config kvsConfig = fdb_get_default_kvs_config();
status = fdb_kvs_open_default(fdbFileHandle, &fdbKvsHandle, &kvsConfig);
assert(status == FDB_RESULT_SUCCESS);
srand(2017);
std::string k[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
k[i] = (randomstr());
}
std::string v("壹贰叁肆伍陆柒捌玖拾");
v.append(v).append(v).append(v).append(v).append(v);
// 测试添加
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_set_kv(fdbKvsHandle, k[i].data(), k[i].size(), v.data(), v.size());
assert(status == FDB_RESULT_SUCCESS);
}
// 提交操作到磁盘(这里必须commit才能实际写入到磁盘)
fdb_commit(fdbFileHandle, FDB_COMMIT_NORMAL);
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次添加耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试获取
{
auto start = std::chrono::system_clock::now();
void* v2[TEST_FREQUENCY]; size_t v2len[TEST_FREQUENCY];
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_get_kv(fdbKvsHandle, k[i].data(), k[i].size(), &v2[i], &v2len[i]);
assert(status == FDB_RESULT_SUCCESS);
}
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次获取耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
// 验证获取结果是否正确
std::string ss;
for (int i = 0; i < TEST_FREQUENCY; ++i) {
ss.assign((const char*)v2[i], v2len[i]);
if (ss != v) {
std::cout << "第 " << i << " 个结果不正确" << std::endl;
std::cout << ss << std::endl;
}
free(v2[i]);
}
}
// 测试修改
{
auto start = std::chrono::system_clock::now();
v.append(v);
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_set_kv(fdbKvsHandle, k[i].data(), k[i].size(), v.data(), v.size());
assert(status == FDB_RESULT_SUCCESS);
}
// 提交操作到磁盘(这里必须commit才能实际写入到磁盘)
fdb_commit(fdbFileHandle, FDB_COMMIT_NORMAL);
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次修改耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 测试删除
{
auto start = std::chrono::system_clock::now();
for (int i = 0; i < TEST_FREQUENCY; ++i) {
status = fdb_del_kv(fdbKvsHandle, k[i].data(), k[i].size());
assert(status == FDB_RESULT_SUCCESS);
}
// 提交操作到磁盘(这里必须commit才能实际写入到磁盘)
fdb_commit(fdbFileHandle, FDB_COMMIT_NORMAL);
auto end = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << TEST_FREQUENCY <<"次删除耗时: "
<< double(duration.count()) * std::chrono::microseconds::period::num / std::chrono::microseconds::period::den
<< "秒" << std::endl;
}
// 关闭数据库
status = fdb_kvs_close(fdbKvsHandle);
assert(status == FDB_RESULT_SUCCESS);
status = fdb_close(fdbFileHandle);
assert(status == FDB_RESULT_SUCCESS);
status = fdb_shutdown();
assert(status == FDB_RESULT_SUCCESS);
return 0;
}
