这篇文章受大家邀请，与 SqlSugar 做一次简单的性能测试对比。主要针对插入、批量插入、批量更新、读取性能的测试；
sqlSugarCore 4.9.9.3
sqlserver 14.00.1000 Express、mysql 5.6
以 console 程序，创建步骤：
1、dotnet new console
2、dotnet add package FreeSql
3、dotnet add package sqlSugarCore
这个错误来自 sugar 创建数据库的时候，实体定义如下：
sugar的没有同步上来。
暂时先用 freesql 帮 sugar 创建了表。。。创建完后如下：
运行时又出现如下错误：
需要加一堆 IsIgnore
是的，还在报错，最终原因是我传入的 songs 是 IEnumerable
然而上面提到的批量更新，今天先到这吧。下次有兴致了再测试。
其他库我就不测试了，谢谢观看！请求献上宝贵的一星。
github：https://github.com/2881099/FreeSql
using FreeSql.DataAnnotations;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
namespace orm_vs
{
class Program
{
static IFreeSql fsql = new FreeSql.FreeSqlBuilder()
//.UseConnectionString(FreeSql.DataType.SqlServer, "Data Source=.;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;Max Pool Size=20")
.UseConnectionString(FreeSql.DataType.MySql, "Data Source=127.0.0.1;Port=3306;User ID=root;Password=root;Initial Catalog=cccddd;Charset=utf8;SslMode=none;Max pool size=20")
.UseAutoSyncStructure(false)
.UseNoneCommandParameter(true)
//.UseConfigEntityFromDbFirst(true)
.Build();
static SqlSugarClient sugar {
get => new SqlSugarClient(new ConnectionConfig() {
//不欺负，让连接池100个最小
//ConnectionString = "Data Source=.;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;Min Pool Size=100;Max Pool Size=20",
//DbType = DbType.SqlServer,
ConnectionString = "Data Source=127.0.0.1;Port=3306;User ID=root;Password=root;Initial Catalog=cccddd;Charset=utf8;SslMode=none;Min Pool Size=20;Max Pool Size=20",
DbType = DbType.MySql,
IsAutoCloseConnection = true,
InitKeyType = InitKeyType.Attribute
});
}
static StringBuilder sb = new StringBuilder();
static void Main(string[] args) {
fsql.CodeFirst.SyncStructure(typeof(Song), typeof(Song_tag), typeof(Tag));
sugar.CodeFirst.InitTables(typeof(Song), typeof(Song_tag), typeof(Tag));
//sugar创建表失败：SqlSugar.SqlSugarException: Sequence contains no elements
//测试前清空数据
fsql.Delete<Song>().Where(a => a.Id > 0).ExecuteAffrows();
sugar.Deleteable<Song>().Where(a => a.Id > 0).ExecuteCommand();
Console.WriteLine("插入性能：");
Insert(1000, 1);
Console.Write(sb.ToString());
sb.Clear();
Insert(1000, 10);
Console.Write(sb.ToString());
sb.Clear();
Insert(1, 1000);
Console.Write(sb.ToString());
sb.Clear();
Insert(1, 10000);
Console.Write(sb.ToString());
sb.Clear();
Insert(1, 50000);
Console.Write(sb.ToString());
sb.Clear();
Console.WriteLine("查询性能：");
Select(1000, 1);
Console.Write(sb.ToString());
sb.Clear();
Select(1000, 10);
Console.Write(sb.ToString());
sb.Clear();
Select(1, 1000);
Console.Write(sb.ToString());
sb.Clear();
Select(1, 10000);
Console.Write(sb.ToString());
sb.Clear();
Select(1, 50000);
Console.Write(sb.ToString());
sb.Clear();
Select(1, 100000);
Console.Write(sb.ToString());
sb.Clear();
Console.Write(sb.ToString());
Console.WriteLine("测试结束，按任意键退出...");
Console.ReadKey();
}
static void Select(int forTime, int size) {
Stopwatch sw = new Stopwatch();
sw.Restart();
for (var a = 0; a < forTime; a++)
fsql.Select<Song>().Limit(size).ToList();
sw.Stop();
sb.AppendLine($"FreeSql Select {size}条数据，循环{forTime}次，耗时{sw.ElapsedMilliseconds}ms");
sw.Restart();
for (var a = 0; a < forTime; a++)
sugar.Queryable<Song>().Take(size).ToList();
sw.Stop();
sb.AppendLine($"SqlSugar Select {size}条数据，循环{forTime}次，耗时{sw.ElapsedMilliseconds}ms\r\n");
}
static void Insert(int forTime, int size) {
var songs = Enumerable.Range(0, size).Select(a => new Song {
Create_time = DateTime.Now,
Is_deleted = false,
Title = $"Insert_{a}",
Url = $"Url_{a}"
}).ToArray();
//预热
fsql.Insert(songs.First()).ExecuteAffrows();
sugar.Insertable(songs.First()).ExecuteCommand();
Stopwatch sw = new Stopwatch();
sw.Restart();
for (var a = 0; a < forTime; a++)
fsql.Insert(songs.AsEnumerable()).ExecuteAffrows();
sw.Stop();
sb.AppendLine($"FreeSql Insert {size}条数据，循环{forTime}次，耗时{sw.ElapsedMilliseconds}ms");
sw.Restart();
for (var a = 0; a < forTime; a++)
sugar.Insertable(songs).ExecuteCommand();
sw.Stop();
sb.AppendLine($"SqlSugar Insert {size}条数据，循环{forTime}次，耗时{sw.ElapsedMilliseconds}ms\r\n");
}
}
[Table(Name = "freesql_song")]
[SugarTable("sugar_song")]
public class Song {
[Column(IsIdentity = true)]
[SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
public int Id { get; set; }
public DateTime? Create_time { get; set; }
public bool? Is_deleted { get; set; }
public string Title { get; set; }
public string Url { get; set; }
[SugarColumn(IsIgnore = true)]
public virtual ICollection<Tag> Tags { get; set; }
}
[Table(Name = "freesql_song_tag")]
[SugarTable("sugar_song_tag")]
public class Song_tag {
public int Song_id { get; set; }
[SugarColumn(IsIgnore = true)]
public virtual Song Song { get; set; }
public int Tag_id { get; set; }
[SugarColumn(IsIgnore = true)]
public virtual Tag Tag { get; set; }
}
[Table(Name = "freesql_tag")]
[SugarTable("sugar_tag")]
public class Tag {
[Column(IsIdentity = true)]
[SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
public int Id { get; set; }
public int? Parent_id { get; set; }
[SugarColumn(IsIgnore = true)]
public virtual Tag Parent { get; set; }
public decimal? Ddd { get; set; }
public string Name { get; set; }
[SugarColumn(IsIgnore = true)]
public virtual ICollection<Song> Songs { get; set; }
[SugarColumn(IsIgnore = true)]
public virtual ICollection<Tag> Tags { get; set; }
}
}原文：https://www.cnblogs.com/kellynic/p/10557882.html