由于很多园友反馈,有的组件不应该缺席、测试复杂度不够、测试还缺乏一定的公平。
因此考虑在下一个版本中,确保在更加公平的前提下进行更高复杂度的测试 。
同时将分为2组测试,纯SQL组件及纯ORM组件, 如果纯SQL组件不足,就只进行纯ORM组件的测试。
待加入测试组件有Dapper、PetaPoco/NPoco、Elinq、FluentData ,有更好的建议,请留言。
--------------------------------------------------------------
“啊!你在用ORM?会不会性能很差啊?”
标题提到的组件“增删改查”都实现了测试代码,所以除了测试外,也可以把此项目作为各个组件的入门参考demo。
源码下载:https://github.com/alifellod/DbAccessLibTest/archive/master.zip
git地址:https://github.com/alifellod/DbAccessLibTest 欢迎园友贡献改进代码。
项目使用的是.Net Framework 4.0可以使用2010或2012打开。
默认测试数据库使用SqlServer
测试前,请先创建数据表Test(使用名为Test的数据库,如果不用这个数据库,请更改数据库连接字符串)
CREATE TABLE [dbo].[Test] ( [RowId] [int] IDENTITY(1,1) NOT NULL, [Guid] [varchar](50) primary key NOT NULL, [Content] [nvarchar](500) NULL, [CreateDate] [datetime] NULL default getdate(), [EditDate] [datetime] NULL )
测试前清表:truncatetable Test 默认连接字符串是:Data Source=.;Initial Catalog=Test;Integrated Security=True
此程度测试代码使用了接口规范,并没有为了省事耦合在程序里,因此编写修改测试代码非常简单,所以也希望各位园友自己写上一段测试测试。
由于这些组件基本都是第一次使用,所以可能导致部分组件测试代码编写并不合理,敬请指点。
注意:各组件的测试均采用一样的测试思路,也即ORM对ORM,SQL对SQL,循环也是一样的循环。
不必拘泥于15和23的区别,而是要区别10和100的区别,也就是在一个数量级别之间比较。
线程我分别写了Task、ThreadPool和Thread的执行方式,根据自己的喜欢选择。
测试之前,可先预热一下——各个组件进行一定数量查询。
先看两张测试图。
分别是ClownFish和EF的测试图,X轴是线程名称,Y轴是耗时。
特别说明: CYQ的数据是使用更新前的组件,在昨晚测试整理的。今天收到秋天园友的反馈,已经在git提交了更新,测试的数据也回归正常。
因此,数据也调整过来。(2013-07-27 13:53)
关于XCode的测试数据,请参看大石头的说明。大石头建议在大数据的访问时使用此组件,并开启缓存。
同时不再接受新的组件更新,除非是在新的测试版本中,以避免针对性的更新。
数据格式:平均值-最高值-最低值
测试顺序:增、改、删
100“线程” 查询10次 增删改
|
ClownFish |
Moon |
|
增 |
23-96-2 |
21-76-6 |
8-25-4 |
删 |
16-49-2 |
15-37-5 |
4-18-2 |
改 |
46-116-3 |
23-56-3 |
7-33-3 |
|
CYQOrm |
EFOrm |
MoonOrm |
MySoftOrm |
NHibernateOrm |
PDFOrm |
XCodeOrm |
增 |
24-79-5 |
23-71-8 |
10-64-3 |
46-102-24 |
21-47-7 |
12-31-4 |
15-60-9 |
删 |
11-61-4 |
61-137-17 |
10-29-3 |
41-267-15 |
41-103-9 |
20-54-3 |
340-623-173 |
改 |
29-182-18 |
37-113-15 |
5-15-2 |
110-195-52 |
37-128-7 |
17-50-3 |
364-476-246 |
1000“线程” 查询10次增删改
|
ClownFish |
Moon |
|
增 |
9-276-2 |
13-49-2 |
7-44-3 |
删 |
22-125-2 |
7-43-3 |
9-41-3 |
改 |
20-299-2 |
10-123-3 |
8-66-2 |
|
CYQOrm |
EFOrm |
MoonOrm |
MySoftOrm |
NHibernateOrm |
PDFOrm |
XCodeOrm |
增 |
79-961-3 |
29-306-9 |
6-52-3 |
50-386-11 |
12-259-4 |
10-48-3 |
14-231-8 |
删 |
29-471-4 |
43-321-11 |
14-95-2 |
78-386-13 |
45-237-7 |
22-90-4 |
362-729-177 |
改 |
30-438-3 |
59-334-12 |
27-215-14 |
106-647-18 |
42-294-4 |
17-128-3 |
410-755-199 |
查询测试,数据行100W
100“线程” 查询返回Top 100
使用没有索引的列RowId排序
|
ClownFish |
Moon |
|
查 |
2-19-1 |
1-9-0 |
1-47-0 |
查询采用的根据组件提供的分页或者Top查询功能。(moon及xcode使用的是分页查询)
使用没有索引的列RowId排序
|
CYQOrm |
EFOrm |
MoonOrm |
MySoftOrm |
NHibernateOrm |
PDFOrm |
XCodeOrm |
查 |
1339-2220-281 |
1452-3668-735 |
5230-8032-3241 |
1287-1670-240 |
3372-6264-954 |
2629-3825-836 |
1696-5363-716 |
使用有索引的列Guid排序
|
CYQOrm |
EFOrm |
MoonOrm |
MySoftOrm |
NHibernateOrm |
PDFOrm |
XCodeOrm |
查 |
16-32-13 |
5-8-3 |
5967-14644-1639 |
2-5-1 |
7-127-2 |
1-17-0 |
1-9-0 |
经过测试,发现线程越多,越容易出现问题“超时时间已到,但是尚未从池中获取连接。出现这种情况可能是因为所有池连接均在使用,并且达到了最大池大小。”导致访问很不稳定。
一个好的数据访问层应该是可以优雅的接受并处理大并发的访问,而不应该仅仅只盯住表面上的测试数据(除非有数量级上的差距)。
整个程序框架怎么才设计出色,更加优雅的面对请求,才是应该花更多心思去考虑的。
从上面也可以看到,ORM性能其实并没有一般人想象的那么糟糕。
最后看看程序的代码是怎么样的。
项目目录
测试代码接口
{
bool Insert();
bool Update(string guid, string content);
DataTable Select(int count);
List<string> GetGuidList(int count);
bool Delete(string guid);
}
ClownFish-SQL测试代码
{
static ClownFishTest()
{
DbContext.RegisterDbConnectionInfo("sqlserver", "System.Data.SqlClient", "@", Control.ConnectionStrings);
}
public void TruncateTable()
{
DbHelper.ExecuteNonQuery(SqlString.TruncateTable, null, DbContext, CommandKind.SqlTextNoParams);
}
public bool Insert()
{
var parameter = new { Guid = Guid.NewGuid(), Content = string.Empty };
return (DbHelper.ExecuteNonQuery(SqlString.Insert, parameter, DbContext, CommandKind.SqlTextWithParams) > );
}
public bool Update(string guid, string content)
{
var parameter = new { Guid = guid, Content = content };
return (DbHelper.ExecuteNonQuery(SqlString.Update, parameter, DbContext, CommandKind.SqlTextWithParams) > );
}
public DataTable Select(int count)
{
return DbHelper.FillDataTable(string.Format(SqlString.Select, count), null, DbContext, CommandKind.SqlTextNoParams);
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
DataTable dtb = Select(count);
if (dtb == null || dtb.Rows.Count == )
return result;
result.AddRange(from DataRow row in dtb.Rows select row["Guid"].ToString());
return result;
}
public bool Delete(string guid)
{
var parameter = new { Guid = guid };
return (DbHelper.ExecuteNonQuery(SqlString.Delete, parameter, DbContext, CommandKind.SqlTextWithParams) > );
}
}
{
private readonly DB _dbHelper = DBFactory.DefaultDB;
public bool Insert()
{
return (_dbHelper.ExecuteOneSql(string.Format(SqlString.InsertFormat, Guid.NewGuid(), string.Empty)) > );
}
public bool Update(string guid, string content)
{
return (_dbHelper.ExecuteOneSql(string.Format(SqlString.UpdateFormat, guid, content)) > );
}
public DataTable Select(int count)
{
return _dbHelper.GetDataTable(string.Format(SqlString.Select, count));
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
DataTable dtb = Select(count);
if (dtb == null || dtb.Rows.Count == )
return result;
result.AddRange(from DataRow row in dtb.Rows select row["Guid"].ToString());
return result;
}
public bool Delete(string guid)
{
return (_dbHelper.ExecuteOneSql(string.Format( SqlString.DeleteFormat,guid)) > );
}
}
PDF-SQL测试代码
{
private readonly AdoHelper _dbHelper = MyDB.GetDBHelperByConnectionName("pdf");
public bool Insert()
{
IDataParameter[] parameters =
{
new SqlParameter("@Guid",SqlDbType.VarChar,){Value=Guid.NewGuid().ToString()},
new SqlParameter("@Content",SqlDbType.NVarChar,){Value=string.Empty}
};
return (_dbHelper.ExecuteNonQuery(SqlString.Insert, CommandType.Text, parameters) > );
}
public bool Update(string guid, string content)
{
IDataParameter[] parameters =
{
new SqlParameter("@Guid",SqlDbType.VarChar,){Value=guid},
new SqlParameter("@Content",SqlDbType.NVarChar,){Value=content}
};
return (_dbHelper.ExecuteNonQuery(SqlString.Update, CommandType.Text, parameters) > );
}
public DataTable Select(int count)
{
return _dbHelper.ExecuteDataSet(string.Format(SqlString.Select, count)).Tables[];
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
DataTable dtb = Select(count);
if (dtb == null || dtb.Rows.Count == )
return result;
result.AddRange(from DataRow row in dtb.Rows select row["Guid"].ToString());
return result;
}
public bool Delete(string guid)
{
IDataParameter[] parameters =
{
new SqlParameter("@Guid",SqlDbType.VarChar,){Value=guid}
};
return (_dbHelper.ExecuteNonQuery(SqlString.Delete, CommandType.Text, parameters) > );
}
}
CYQ-ORM测试代码
{
public bool Insert()
{
bool result;
using (MAction actiont = new MAction(TableNames.Test))
{
actiont.Set("Guid", Guid.NewGuid());
result = actiont.Insert(InsertOp.None);
}
return result;
}
public bool Update(string guid, string content)
{
bool result;
using (MAction actiont = new MAction(TableNames.Test))
{
actiont.Set("Content", content);
result = actiont.Update("Guid='" + guid + "'");
}
return result;
}
public DataTable Select(int count)
{
DataTable result;
using (MAction actiont = new MAction(TableNames.Test))
{
result = actiont.Select(count, "order by Guid").ToDataTable();
//actiont.Select(count, "order by RowId");
}
return result;
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
DataTable dtb = Select(count);
if (dtb == null || dtb.Rows.Count == )
return result;
result.AddRange(from DataRow row in dtb.Rows select row["Guid"].ToString());
return result;
}
public bool Delete(string guid)
{
bool result;
using (MAction actiont = new MAction(TableNames.Test))
{
result = actiont.Delete("Guid='" + guid + "'");
}
return result;
}
}
EF-ORM测试代码
{
private readonly EFDbContext _dbContext;
//private static readonly EFDbContext _dbContext = new EFDbContext("Conn");
public EFOrmTest()
{
_dbContext = new EFDbContext("Conn");
}
public bool Insert()
{
DbSet model = _dbContext.Set();
model.Add(new TestModel { Guid = Guid.NewGuid().ToString(), EditDate = DateTime.Now });
_dbContext.SaveChanges();
return true;
}
public bool Update(string guid, string content)
{
var model = _dbContext.Set().Find(guid);
model.Content = content;
_dbContext.Entry(model).State = EntityState.Modified;
_dbContext.SaveChanges();
return true;
}
public DataTable Select(int count)
{
GetModelList(count);
return null;
}
public IList GetModelList(int count)
{
DbSet model = _dbContext.Set();
return model.OrderBy(o => o.Guid).Take(count).ToList();
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
var list = GetModelList(count);
if (list == null || list.Count == )
return result;
result.AddRange(list.Select(o => o.Guid));
return result;
}
public bool Delete(string guid)
{
var model = _dbContext.Set().Find(guid);
_dbContext.Entry(model).State = EntityState.Deleted;
_dbContext.SaveChanges();
return true;
}
}
Moon-ORM测试代码
{
public static void Init() { }
public bool Insert()
{
return DBFactory.Add(new MoonTestModel { Guid = Guid.NewGuid().ToString() }) != DBNull.Value;
}
public bool Update(string guid, string content)
{
var model = new MoonTestModel() { Content = content };
model.SetOnlyMark(TestTable.Guid.Equal(guid));
DBFactory.Update(model);
return true;
}
public DataTable Select(int count)
{
GetModelList(count);
return null;
}
public IList GetModelList(int count)
{
//没有找到更好的查询方式
return DBFactory.DefaultDB.GetPagedListDesc(, count, TestTable.Guid, TestTable.Guid.NotEqual("''"));
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
var list = GetModelList(count);
if (list == null || list.Count == )
return result;
result.AddRange(list.Select(moonTestModel => moonTestModel.Guid));
return result;
}
public bool Delete(string guid)
{
return DBFactory.DeleteWhen(TestTable.Guid.Equal(guid)) > ;
}
}
MySoft-ORM测试代码
{
private static readonly DbSession DBSession = new DbSession(new MySoft.Data.SqlServer9.SqlServer9Provider(System.Configuration.ConfigurationManager.ConnectionStrings["Conn"].ConnectionString));
public bool Insert()
{
return DBSession.Insert(new[] { MySoftTestModel._.Guid }, new object[] { Guid.NewGuid().ToString() }) > ;
}
public bool Update(string guid, string content)
{
return DBSession.Update(new[] { MySoftTestModel._.Content, MySoftTestModel._.EditDate }, new object[] { content, DateTime.Now }, MySoftTestModel._.Guid == guid) > ;
}
public DataTable Select(int count)
{
GetModelList(count);
return null;
}
public IList GetModelList(int count)
{
return DBSession.From().OrderBy(MySoftTestModel._.Guid.Asc).GetTop(count).ToList();
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
var list = GetModelList(count);
if (list == null || list.Count == )
return result;
result.AddRange(list.Select(o => o.Guid));
return result;
}
public bool Delete(string guid)
{
return DBSession.Delete(MySoftTestModel._.Guid == guid) > ;
}
}
NHibernate-ORM测试代码
{
private static readonly ISessionFactory SessionFactory = CreateSessionFactory();
static NHibernateOrmTest()
{
}
private static ISessionFactory CreateSessionFactory()
{
ISessionFactory sessionFactory;
try
{
sessionFactory = Fluently.Configure()
.Database(FluentNHibernate.Cfg.Db.MsSqlConfiguration.MsSql2008
.ConnectionString(s => s.Server(".").Database("Test")
.TrustedConnection()))
.Mappings(m =>m.FluentMappings.Add())
.BuildSessionFactory();
}
catch (Exception ex)
{
throw;
}
return sessionFactory;
}
public bool Insert()
{
using (var session = SessionFactory.OpenSession())
{
var model = new TestModel { Guid = Guid.NewGuid().ToString() };
session.Save(model);
session.Flush();
}
return true;
}
public bool Update(string guid, string content)
{
using (var session = SessionFactory.OpenSession())
{
var model = new TestModel { Guid = guid, Content = content, EditDate = DateTime.Now };
session.Update(model);
session.Flush();
}
return true;
}
public DataTable Select(int count)
{
GetModelList(count);
return null;
}
public IList GetModelList(int count)
{
IList result;
using (var session = SessionFactory.OpenSession())
{
result = session.QueryOver().OrderBy(o=>o.Guid).Asc.Take(count).List();
}
return result;
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
var list = GetModelList(count);
if (list == null || list.Count == )
return result;
result.AddRange(list.Select(o => o.Guid));
return result;
}
public bool Delete(string guid)
{
using (var session = SessionFactory.OpenSession())
{
var model = new TestModel { Guid = guid};
session.Delete(model);
session.Flush();
}
return true;
}
}
PDF-ORM测试代码
{
public bool Insert()
{
PdfTestModel model = new PdfTestModel
{
Guid = Guid.NewGuid().ToString(),
EditDate = DateTime.Now
};
return EntityQuery<PdfTestModel>.Instance.Insert(model) > ;
}
public bool Update(string guid, string content)
{
PdfTestModel model = new PdfTestModel
{
Guid = guid,
Content = content,
EditDate = DateTime.Now
};
return EntityQuery<PdfTestModel>.Instance.Update(model) > ;
}
public DataTable Select(int count)
{
GetModelList(count);
return null;
}
public List<PdfTestModel> GetModelList(int count)
{
PdfTestModel model = new PdfTestModel();
OQL q = OQL.From(model).Limit(count).Select().OrderBy(model.Guid, "ASC").END;
return EntityQuery<PdfTestModel>.QueryList(q);
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
var list = GetModelList(count);
if (list == null || list.Count == )
return result;
result.AddRange(list.Select(o => o.Guid));
return result;
}
public bool Delete(string guid)
{
PdfTestModel model = new PdfTestModel { Guid = guid };
return EntityQuery<PdfTestModel>.Instance.Delete(model) > ;
}
}
XCode-ORM测试代码
{
static XCodeOrmTest()
{
XCode.DataAccessLayer.DAL.ShowSQL = false;
//XCode.DataAccessLayer.DAL.SQLPath = AppDomain.CurrentDomain.BaseDirectory;
}
public bool Insert()
{
var model = new XCodeTestModel();
model.Guid = Guid.NewGuid().ToString();
return model.Insert() > ;
}
public bool Update(string guid, string content)
{
var model = XCodeTestModel.FindByGuid(guid);
model.Content = content;
model.EditDate = DateTime.Now;
return model.Update() > ;
}
public DataTable Select(int count)
{
GetModelList(count);
return null;
}
public List GetModelList(int count)
{
return XCodeTestModel.Search(string.Empty, "Guid ASC", , count);
}
public List<string> GetGuidList(int count)
{
List<string> result = new List<string>();
var list = GetModelList(count);
if (list == null || list.Count == )
return result;
result.AddRange(list.Select(o => o.Guid));
return result;
}
public bool Delete(string guid)
{
//return XCodeTestModel.Delete(new[] { "Guid" }, new object[] { guid }) > 0;
return XCodeTestModel.FindByGuid(guid).Delete() > ;
}
}
测试耗时监控
/// 执行指定查询的测试,并记录测试数据
///
/// 线程序号
/// 执行的查询
/// 执行测试的组件实体
private object TestWork(object index, Actionint> execute, ITest instance)
{
Stopwatch sw = new Stopwatch();
string threadName = string.Format("{0:D3}", index);
if (_showThreadWorkStatus)
UpdateMessage(string.Format("线程{0}开始时间:{1}", threadName, DateTime.Now));
sw.Start();
try
{execute(instance, (int) index);}
catch (Exception ex)
{UpdateMessage(string.Format("*线程{0} 执行错误,信息:{1}", threadName, ex.Message));}
sw.Stop();
if (_showThreadWorkStatus)
UpdateMessage(string.Format("*线程{0} *总耗时:{1} *当前时间:{2}", threadName, sw.ElapsedMilliseconds, DateTime.Now));
_waitWrite.WaitOne();
_waitWrite.Reset();
_workThreadCount--;
_totalElapsed += sw.ElapsedMilliseconds;
_workerInfo.Add(new Worker { Name = threadName, TotalElapsed = sw.ElapsedMilliseconds });
if (_workThreadCount == )
{
UpdateMessage(string.Format("全部线程总耗时:{0} *开始时间:{1} *结束时间:{2}", _totalElapsed, _beginTime, DateTime.Now));
UpdateChart();
EnableExecuteControl();
}
Application.DoEvents();
UpdateThreadCountBack();
_waitWrite.Set();
return ;
}
测试完整逻辑代码 ,300多行,慎点。
{
private string _executeType = "Insert";//测试查询类型
private string _testLibClassPath = "DbAccessLibTest.Test.ClownFishTest";//测试组件类路径
private long _totalElapsed;//总耗时
private int _workThreadCount;//工作线程数
private int _threadCountCreated, _threadCountBack;
private int _executeCount;//执行查询次数(返回行数)
private bool _showThreadWorkStatus;
private Dictionary<int, List<string>> _guidList;//执行删除和修改时,预先取回的主键guid集合,按照每个线程序号分组分配
private List _workerInfo;//测试工作线程信息,主要用于图表数据显示
private ITest _testInstance;//用于准备执行删除、修改的guid集合
private DateTime _beginTime;//测试开始的时间
private readonly AutoResetEvent _waitWrite = new AutoResetEvent(true);//编辑总耗时等全局信息的信号灯
private CancellationTokenSource _taskCancelToken;
private readonly Assembly _self = Assembly.Load("数据访问组件测试");
public FrmDbAccessTest()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
_workerInfo = new List();
chartMain.Series[].XValueMember = "Name";
chartMain.Series[].YValueMembers = "TotalElapsed";
chartMain.DataSource = _workerInfo;
}
///
/// 执行测试
///
private void btnExecute_Click(object sender, EventArgs e)
{
//初始化数据
_workThreadCount = (int)nuWorkThreadCount.Value;
_executeCount = (int)nuExecuteCount.Value;
_totalElapsed = ;
_workerInfo = new List();
_testLibClassPath = "DbAccessLibTest.Test." + cmbTestLib.Text;
_testInstance = (ITest)_self.CreateInstance(_testLibClassPath);
_beginTime = DateTime.Now;
UpdateMessage(string.Format("测试开始时间:{0}", DateTime.Now));
UpdateMessage(string.Format(" 启动线程数:{0}", _workThreadCount));
UpdateMessage(string.Format(" 执行操作数:{0}", _executeCount));
btnExecute.Enabled = false;
nuThreadCountBack.Value = _threadCountBack = ;
nuThreadCountCreated.Value = _threadCountCreated = ;
_showThreadWorkStatus = ckbShowThreadStatus.Checked;
ckbShowThreadStatus.Enabled = false;
new Thread(TestMain).Start();
}
private void TestMain()
{
try
{
UpdateMessage(string.Format("数据准备开始:{0}", DateTime.Now));
Actionint> testExecute = GetExecuteUse();
UpdateMessage(string.Format("数据准备结束:{0}", DateTime.Now));
int createCount = _workThreadCount;
UpdateMessage(string.Format("开始创建线程:{0}", DateTime.Now));
_taskCancelToken = new CancellationTokenSource();
for (int index = ; index < createCount; index++)
{
if (IsDisposed)
return;//防止重启程序时,仍然不断创建线程
if (rdbThreadPool.Checked)
UseThreadPool(index, testExecute);
else if (rdbThread.Checked)
UseThread(index, testExecute);
else
{
if (!UseTask(index, testExecute))
return;//如果已经重启程序,则跳出
}
Thread.Sleep();
UpdateThreadCountCreated();
}
UpdateMessage(string.Format("创建线程完毕:{0}", DateTime.Now));
}
catch (Exception ex)
{
UpdateMessage(ex.Message);
}
}
private void UseThreadPool(int index, Actionint> testExecute)
{
ThreadPool.QueueUserWorkItem(
threadIndex =>
TestWork(threadIndex, testExecute
, (ITest)_self.CreateInstance(_testLibClassPath)), index);
}
private void UseThread(int index, Actionint> testExecute)
{
new Thread(
threadIndex =>
TestWork(threadIndex, testExecute
, (ITest)_self.CreateInstance(_testLibClassPath)))
.Start(index);
}
private bool UseTask(int index, Actionint> testExecute)
{
var task = new Task<object>
(
threadIndex => TestWork(threadIndex, testExecute, (ITest)_self.CreateInstance(_testLibClassPath))
, index
, _taskCancelToken.Token
);
if (_taskCancelToken.IsCancellationRequested)
return false;
task.Start();
return true;
}
///
/// 执行指定查询的测试,并记录测试数据
///
/// 线程序号
/// 执行的查询
/// 执行测试的组件实体
private object TestWork(object index, Actionint> execute, ITest instance)
{
Stopwatch sw = new Stopwatch();
string threadName = string.Format("{0:D3}", index);
if (_showThreadWorkStatus)
UpdateMessage(string.Format("线程{0}开始时间:{1}", threadName, DateTime.Now));
sw.Start();
try
{execute(instance, (int) index);}
catch (Exception ex)
{UpdateMessage(string.Format("*线程{0} 执行错误,信息:{1}", threadName, ex.Message));}
sw.Stop();
if (_showThreadWorkStatus)
UpdateMessage(string.Format("*线程{0} *总耗时:{1} *当前时间:{2}", threadName, sw.ElapsedMilliseconds, DateTime.Now));
_waitWrite.WaitOne();
_waitWrite.Reset();
_workThreadCount--;
_totalElapsed += sw.ElapsedMilliseconds;
_workerInfo.Add(new Worker { Name = threadName, TotalElapsed = sw.ElapsedMilliseconds });
if (_workThreadCount == )
{
UpdateMessage(string.Format("全部线程总耗时:{0} *开始时间:{1} *结束时间:{2}", _totalElapsed, _beginTime, DateTime.Now));
UpdateChart();
EnableExecuteControl();
}
Application.DoEvents();
UpdateThreadCountBack();
_waitWrite.Set();
return ;
}
#region 执行查询
private void ExecuteInsert(ITest instance, int threadIndex)
{
for (int i = ; i < _executeCount; i++)
instance.Insert();
}
private void ExecuteUpdate(ITest instance, int threadIndex)
{
foreach (string guid in _guidList[threadIndex])
instance.Update(guid, string.Format("测试修改 **线程:{0}**组件:{1}**时间:{2}", threadIndex, instance.GetType(), DateTime.Now));
}
private void ExecuteDelete(ITest instance, int threadIndex)
{
foreach (string guid in _guidList[threadIndex])
instance.Delete(guid);
}
private void ExecuteSelect(ITest instance, int threadIndex)
{
instance.Select(_executeCount);
}
#endregion
///
/// 获取测试的操作,如果是删除和更新,则先准备数据
///
///
private Actionint> GetExecuteUse()
{
switch (_executeType)
{
case "Insert":
return ExecuteInsert;
case "Delete":
AssignGuid(); return ExecuteDelete;
case "Update":
AssignGuid(); return ExecuteUpdate;
case "Select":
return ExecuteSelect;
}
throw new Exception("程序异常:GetExecute");
}
///
/// 获取删除或者更新需要的guid集合,并分配给各个线程
///
private void AssignGuid()
{
var list = _testInstance.GetGuidList(_workThreadCount * _executeCount);
_guidList = new Dictionary<int, List<string>>(_workThreadCount);
for (int i = ; i < _workThreadCount; i++)
_guidList.Add(i, new List<string>());
for (int i = ; i < list.Count; i++)
{
int index = i % _workThreadCount;
_guidList[index].Add(list[i]);
}
}
///
/// 更新图表
///
private void UpdateChart()
{
if (IsDisposed)
return;
if (InvokeRequired)
BeginInvoke(new MethodInvoker(UpdateChart));
else
{
if (_workerInfo.Count > )
chartMain.Series[].Label = string.Empty;
_workerInfo.Sort();
chartMain.DataSource = _workerInfo;
chartMain.ResetAutoValues();
}
}
///
/// 更新信息
///
///
private void UpdateMessage(string msg)
{
if (IsDisposed)
{
return;
}
if (InvokeRequired)
BeginInvoke(new MethodInvoker(() => UpdateMessage(msg)));
else
{
rtxtMessage.AppendText(msg + "\n");
rtxtMessage.Select(rtxtMessage.Text.Length - , );
rtxtMessage.ScrollToCaret();
}
}
///
/// 更新已创建线程数
///
private void UpdateThreadCountCreated()
{
if (IsDisposed)
return;
if (InvokeRequired)
BeginInvoke(new MethodInvoker(UpdateThreadCountCreated));
else
nuThreadCountCreated.Value = _threadCountCreated = (int)nuThreadCountCreated.Value + ;
}
///
/// 更新返回线程数
///
private void UpdateThreadCountBack()
{
if (IsDisposed)
return;
if (InvokeRequired)
BeginInvoke(new MethodInvoker(UpdateThreadCountBack));
else
nuThreadCountBack.Value = _threadCountBack = (int)nuThreadCountBack.Value + ;
}
///
/// 启用执行按钮
///
private void EnableExecuteControl()
{
if (IsDisposed)
return;
Invoke(new MethodInvoker(() =>
{
btnExecute.Enabled = true;
ckbShowThreadStatus.Enabled = true;
}));
}
private void rdbExecute_CheckedChanged(object sender, EventArgs e)
{
RadioButton rdb = sender as RadioButton;
if (rdb == null)
throw new Exception("程序异常:rdbExecute_CheckedChanged");
if (rdb.Checked)
_executeType = rdb.Text;
}
private void btnAnalysis_Click(object sender, EventArgs e)
{
//暂时没有实现
}
private void btnTruncateTable_Click(object sender, EventArgs e)
{
if (MessageBox.Show("确定要清空整个表吗", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk) == DialogResult.Yes)
{
btnTruncateTable.Enabled = false;
new ClownFishTest().TruncateTable();
UpdateMessage("表已清空 - " + DateTime.Now);
btnTruncateTable.Enabled = true;
}
}
private void btnThreadInfo_Click(object sender, EventArgs e)
{
UpdateMessage(string.Format("线程数:{0}", _workThreadCount));
}
private void btnRestartForm_Click(object sender, EventArgs e)
{
DialogResult = DialogResult.OK;
if (rdbTask.Checked)
_taskCancelToken.Cancel(true);
Close();
Dispose();
}
}
到底是选择ORM而不写Sql,还是 为了追求性能,而避开ORM,就看自己的情况来取舍了。
选择一个组件的时候,可以考虑这几方面:稳定性、性能、易用性、是否保持更新、是否有较好的文档手册、使用者社区怎么样、是否开源。
上面提供的组件测试代码也可以看到这些组件的代码风格,喜欢语法糖的不妨好好看看,到底更喜欢哪种风格。
综合考虑选择。
ClownFish:http://www.cnblogs.com/fish-li/ 【不开源】仅此一个是非ORM的。
CYQ:http://www.cnblogs.com/cyq1162/ 【逐版本开源】
EF: https://entityframework.codeplex.com/【开源】
Moon:http://www.cnblogs.com/humble/ 【不开源】
MySoft:http://www.cnblogs.com/maoyong/archive/2010/03/01/1675730.html 【逐版本开源】
NHibernate:http://nhforge.org/ 【开源】
PDF:http://www.cnblogs.com/bluedoctor/【开源】
XCode:http://xcode.codeplex.com/【开源】
希望更多的园友分享或开源自己所能知道的心爱的数据访问组件。
QQ交流群:9524888 ,如果想提交测试代码,可以直接发给我,我加上去。
更新修正说明:
由于ClownFish提出测试的时候,使用了匿名对象,因此修改为SQL的直接执行,测试数据如下。
由于1000线程的测试,在500左右,就出现连接超时问题,不能提供测试数据,有兴趣的朋友,自己运行测试。对此造成误解,请谅解。
37-375-5
215-611-29
223-562-40
12-181-3
7-21-4
10-138-3
8-71-4
11-187-4
25-227-3
107-829-3
265-679-15
226-609-19
100-10-delete
10-90-2
24-115-3
33-282-2
37-174-3
111-537-2
23-203-2
8-54-3
100-10-update
11-174-3
16-190-4
21-69-2
21-58-4
75-1155-3