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本篇內容主要講解“MySQL Memory存儲引擎的優勢及性能測試”，感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷，實用性強。下面就讓小編來帶大家學習“MySQL Memory存儲引擎的優勢及性能測試”吧!
測試腳本：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | /******************************************************MYSQL STORAGE ENGINE TESThttp://wu-jian.cnblogs.com/2011-11-29******************************************************/CREATE DATABASE IF NOT EXISTS test
CHARACTER SET 'utf8'
COLLATE 'utf8_general_ci';USE test;/******************************************************1.INNODB******************************************************/DROP TABLE IF EXISTS test_innodb;CREATE TABLE IF NOT EXISTS test_innodb (
id INT UNSIGNED AUTO_INCREMENT COMMENT 'PK',
obj CHAR(255) NOT NULL DEFAULT '' COMMENT 'OBJECT',
PRIMARY KEY (id)) ENGINE=INNODB;/******************************************************2.MYISAM******************************************************/DROP TABLE IF EXISTS test_myisam;CREATE TABLE IF NOT EXISTS test_myisam (
id INT UNSIGNED AUTO_INCREMENT COMMENT 'PK',
obj CHAR(255) NOT NULL DEFAULT '' COMMENT 'OBJECT',
PRIMARY KEY (id)) ENGINE=MYISAM;/******************************************************1.MEMORY******************************************************/DROP TABLE IF EXISTS test_memory;CREATE TABLE IF NOT EXISTS test_memory (
id INT UNSIGNED AUTO_INCREMENT COMMENT 'PK',
obj CHAR(255) NOT NULL DEFAULT '' COMMENT 'OBJECT',
PRIMARY KEY (id)) ENGINE=MEMORY; |
測試代碼：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | using System;using System.Data;using MySql.Data.MySqlClient;namespace MySqlEngineTest{
class Program
{
const string OBJ = "The MEMORY storage engine creates tables with contents that are stored in memory. Formerly, these were known as HEAP tables. MEMORY is the preferred term, although HEAP remains supported for backward compatibility.";
const string SQL_CONN = "Data Source=127.0.0.1;Port=3308;User ID=root;Password=root;DataBase=test;Allow Zero Datetime=true;Charset=utf8;pooling=true;";
const int LOOP_TOTAL = 10000;
const int LOOP_BEGIN = 8000;
const int LOOP_END = 9000;
#region Database Functions
public static bool DB_InnoDBInsert(string obj)
{
string commandText = "INSERT INTO test_innodb (obj) VALUES (?obj)";
MySqlParameter[] parameters = {
new MySqlParameter("?obj", MySqlDbType.VarChar, 255)
};
parameters[0].Value = obj;
if (DBUtility.MySqlHelper.ExecuteNonQuery(SQL_CONN, CommandType.Text, commandText, parameters) > 0)
return true;
else
return false;
}
public static string DB_InnoDBSelect(int id)
{
string commandText = "SELECT obj FROM test_innodb WHERE id = ?id";
MySqlParameter[] parameters = {
new MySqlParameter("?id", MySqlDbType.Int32)
};
parameters[0].Value = id;
return DBUtility.MySqlHelper.ExecuteScalar(SQL_CONN, CommandType.Text, commandText, parameters).ToString();
}
public static bool DB_MyIsamInsert(string obj)
{
string commandText = "INSERT INTO test_myisam (obj) VALUES (?obj)";
MySqlParameter[] parameters = {
new MySqlParameter("?obj", MySqlDbType.VarChar, 255)
};
parameters[0].Value = obj;
if (DBUtility.MySqlHelper.ExecuteNonQuery(SQL_CONN, CommandType.Text, commandText, parameters) > 0)
return true;
else
return false; }
public static string DB_MyIsamSelect(int id)
{
string commandText = "SELECT obj FROM test_myisam WHERE id = ?id";
MySqlParameter[] parameters = {
new MySqlParameter("?id", MySqlDbType.Int32)
};
parameters[0].Value = id;
return DBUtility.MySqlHelper.ExecuteScalar(SQL_CONN, CommandType.Text, commandText, parameters).ToString();
}
public static bool DB_MemoryInsert(string obj)
{
string commandText = "INSERT INTO test_memory (obj) VALUES (?obj)";
MySqlParameter[] parameters = {
new MySqlParameter("?obj", MySqlDbType.VarChar, 255)
};
parameters[0].Value = obj;
if (DBUtility.MySqlHelper.ExecuteNonQuery(SQL_CONN, CommandType.Text, commandText, parameters) > 0)
return true;
else
return false;
}
public static string DB_MemorySelect(int id)
{
string commandText = "SELECT obj FROM test_memory WHERE id = ?id";
MySqlParameter[] parameters = {
new MySqlParameter("?id", MySqlDbType.Int32)
};
parameters[0].Value = id;
return DBUtility.MySqlHelper.ExecuteScalar(SQL_CONN, CommandType.Text, commandText, parameters).ToString();
}
#endregion
#region Test Functions InnoDB
static void InnoDBInsert()
{
long begin = DateTime.Now.Ticks;
for (int i = 0; i < LOOP_TOTAL; i++)
{
DB_InnoDBInsert(OBJ);
}
Console.WriteLine("InnoDB Insert Result: {0}", DateTime.Now.Ticks - begin);
}
static void InnoDBSelect()
{
long begin = DateTime.Now.Ticks;
for (int i = LOOP_BEGIN; i < LOOP_END; i++)
{
DB_InnoDBSelect(i);
}
Console.WriteLine("InnoDB SELECT Result: {0}", DateTime.Now.Ticks - begin);
}
static void MyIsamInsert()
{
long begin = DateTime.Now.Ticks;
for (int i = 0; i < LOOP_TOTAL; i++)
{
DB_MyIsamInsert(OBJ);
}
Console.WriteLine("MyIsam Insert Result: {0}", DateTime.Now.Ticks - begin);
}
static void MyIsamSelect()
{
long begin = DateTime.Now.Ticks;
for (int i = LOOP_BEGIN; i < LOOP_END; i++)
{
DB_MyIsamSelect(i);
}
Console.WriteLine("MyIsam SELECT Result: {0}", DateTime.Now.Ticks - begin);
}
static void MemoryInsert()
{
long begin = DateTime.Now.Ticks;
for (int i = 0; i < LOOP_TOTAL; i++)
{
DB_MemoryInsert(OBJ);
}
Console.WriteLine("Memory Insert Result: {0}", DateTime.Now.Ticks - begin);
}
static void MemorySelect()
{
long begin = DateTime.Now.Ticks;
for (int i = LOOP_BEGIN; i < LOOP_END; i++)
{
DB_MemorySelect(i);
}
Console.WriteLine("Memory SELECT Result: {0}", DateTime.Now.Ticks - begin);
}
static void DataTableInsertAndSelect()
{
//Insert
DataTable dt = new DataTable();
dt.Columns.Add("id", Type.GetType("System.Int32"));
dt.Columns["id"].AutoIncrement = true;
dt.Columns.Add("obj", Type.GetType("System.String"));
DataRow dr = null; long begin = DateTime.Now.Ticks;
for (int i = 0; i < LOOP_TOTAL; i++)
{
dr = null;
dr = dt.NewRow();
dr["obj"] = OBJ;
dt.Rows.Add(dr);
}
Console.WriteLine("DataTable Insert Result: {0}", DateTime.Now.Ticks - begin);
//Select
long begin1 = DateTime.Now.Ticks;
for (int i = LOOP_BEGIN; i < LOOP_END; i++)
{
dt.Select("id = " + i);
}
Console.WriteLine("DataTable Select Result: {0}", DateTime.Now.Ticks - begin1);
}
#endregion
static void Main(string[] args)
{
InnoDBInsert();
InnoDBSelect();
//restart mysql to avoid query cache
MyIsamInsert();
MyIsamSelect();
//restart mysql to avoid query cache
MemoryInsert();
MemorySelect();
DataTableInsertAndSelect();
}
}//end class} |
總結
.Net Cache讀寫性能毫無疑問大大領先于數據庫引擎
InnoDB寫入耗時大概是MyIsam和Memory的5倍左右，它的行鎖機制必然決定了寫入時的更多性能開銷，而它的強項在于多線程的并發處理，而本測試未能體現其優勢。
三種數據庫引擎在SELECT性能上差不多，Memory稍占優，同樣高并發下的比較有待進一步測試。
到此，相信大家對“MySQL Memory存儲引擎的優勢及性能測試”有了更深的了解，不妨來實際操作一番吧！這里是億速云網站，更多相關內容可以進入相關頻道進行查詢，關注我們，繼續學習！
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