.NET ORM 性能評測

.NET ORM 性能評測

Why

1. 你應該總能聽到某ORM性能比Dapper高
2. 你應該有以下疑問：
   1. 基準測試是否權威
   2. 基準測試的方式是否合理
   3. 基準測試的標準是否可以統一
   4. 統一基準測試標準/規範

如何進行姿式正確的性能測試

相信你們對 Dapper 的性能，以及基準測試的權威性是沒有疑問的（不然不會有那麼多ORM在作性能測試的時候直接選型Dapper）,那麼咱們就使用 Dapper 性能基準測試 來做爲咱們的基準測試模板，並加入一些沒有歸入基準測試的 ORM 。這樣從合理性/可信度就大致有了一個標準和保障。

接下來 fork Dapper GitHub 倉庫，並添加了 SmartSql/IBatis.Net/FreeSql/SqlSugar/Chloe

源代碼地址：github.com/Ahoo-Wang/D…,如對測試結果，測試方法有疑問請給我提交issue。

如何本身進行以上基準測試

強烈建議讀者按照如下步驟本身運行基準測試。

1. Git-Clone github.com/Ahoo-Wang/D…
2. cd Dapper/Dapper.Tests.Performance
3. dotnet publish -c release
4. 運行 Dapper.Tests.Performance.exe
5. 提示輸入，請輸入 "*" 運行全部基準測試
6. 等待測試結果，目錄：BenchmarkDotNet.Artifacts 下會有一個日誌文件，和 results 文件夾 (測試結果文件存放在此目錄)

基準測試結果

重要提示：FreeSql/SqlSugar 官方nuget包爲非Release版本，因此測試結果會有影響，僅供參考。

BenchmarkDotNet=v0.11.1, OS=Windows 10.0.17763
Intel Core i7-8750H CPU 2.20GHz (Max: 2.21GHz) (Coffee Lake), 1 CPU, 12 logical and 6 physical cores
  [Host]   : .NET Framework 4.7.2 (CLR 4.0.30319.42000), 64bit RyuJIT-v4.8.3801.0
  ShortRun : .NET Framework 4.7.2 (CLR 4.0.30319.42000), 64bit RyuJIT-v4.8.3801.0

複製代碼

ORM	Method	Return	Mean	Rank	Gen 0	Gen 1	Gen 2	Allocated
Belgrade	ExecuteReader	Post	78.74 us	1	2.2500	0.6250	-	10.63 KB
LINQ to DB	'First (Compiled)'	Post	97.61 us	2	0.5000	-	-	2.67 KB
LINQ to DB	Query<T>	Post	103.05 us	3	1.3750	0.1250	-	6.91 KB
Hand Coded	SqlCommand	Post	107.37 us	4	2.0000	1.0000	0.5000	12.29 KB
Dapper	QueryFirstOrDefault<dynamic>	dynamic	110.83 us	5	2.8750	0.1250	-	13.57 KB
Dapper	QueryFirstOrDefault<T>	Post	111.65 us	5	2.2500	1.0000	0.3750	13.53 KB
Hand Coded	DataTable	dynamic	114.78 us	6	2.0000	0.5000	-	12.51 KB
PetaPoco	'Fetch<T> (Fast)'	Post	114.95 us	6	2.2500	0.8750	0.2500	13.71 KB
Dapper	'Query<dynamic> (buffered)'	dynamic	115.54 us	6	2.2500	1.0000	0.2500	13.93 KB
PetaPoco	Fetch<T>	Post	119.76 us	7	2.5000	1.0000	0.2500	14.66 KB
Dapper	'Query<T> (buffered)'	Post	122.10 us	8	2.2500	0.8750	0.3750	13.86 KB
Susanoo	'Execut<dynamic> (Static)'	dynamic	122.68 us	8	2.5000	0.7500	0.2500	15.03 KB
Massive	'Query (dynamic)'	dynamic	122.82 us	8	2.3750	0.8750	0.2500	14.25 KB
ServiceStack	SingleById<T>	Post	123.93 us	8	3.0000	0.7500	0.2500	17.59 KB
LINQ to DB	First	Post	124.53 us	8	1.1250	0.1250	-	5.53 KB
SmartSql	QuerySingleSqlParameterCollection	Post	125.26 us	8	2.5000	0.7500	0.2500	15.48 KB
SmartSql	QuerySingle	Post	126.79 us	9	2.5000	0.7500	0.2500	15.59 KB
LINQ to SQL	'First (Compiled)'	Post	127.17 us	9	2.0000	-	-	9.87 KB
SmartSql	GetById	Post	127.24 us	9	2.7500	0.7500	0.2500	15.89 KB
SmartSql	QuerySingleStrongRequest	Post	127.70 us	9	2.5000	0.7500	0.2500	15.51 KB
SmartSql	QuerySingleFromXml	Post	128.27 us	9	2.7500	0.7500	0.2500	16.23 KB
Susanoo	'Execute<T> (Static)'	Post	128.92 us	9	2.5000	0.7500	0.2500	15.05 KB
SmartSql	QuerySingleStrongRequest<dynamic>	dynamic	129.88 us	9	2.7500	1.0000	0.5000	16.54 KB
SmartSql	QuerySingleSqlParameterCollection<dynamic>	dynamic	130.96 us	9	2.5000	0.7500	0.2500	16.51 KB
Dapper	'Contrib Get<T>'	Post	132.10 us	9	2.2500	1.0000	0.2500	14.51 KB
DevExpress.XPO	FindObject<T>	Post	137.14 us	10	6.5000	0.2500	-	29.97 KB
Susanoo	'Execute<dynamic> (Cache)'	dynamic	140.24 us	11	3.2500	1.0000	0.5000	20.48 KB
Susanoo	'Execute<T> (Cache)'	Post	141.23 us	11	3.2500	0.7500	0.2500	20.96 KB
EF 6	SqlQuery	Post	154.68 us	12	4.7500	0.7500	-	27.96 KB
DevExpress.XPO	GetObjectByKey<T>	Post	160.87 us	13	5.2500	1.2500	-	32.35 KB
IBatis	QueryForObject	Post	163.87 us	14	2.7500	0.7500	0.2500	16.59 KB
Dapper	'Query<T> (unbuffered)'	Post	166.28 us	15	2.2500	0.7500	0.2500	13.89 KB
Dapper	'Query<dynamic> (unbuffered)'	dynamic	171.82 us	16	2.2500	0.7500	0.2500	13.93 KB
DevExpress.XPO	Query<T>	Post	172.38 us	16	7.5000	0.2500	-	35.02 KB
FreeSql	FromSqlFirstDynamic	dynamic	180.44 us	17	3.2500	0.7500	0.2500	19.38 KB
EF Core	'First (Compiled)'	Post	188.02 us	18	3.5000	-	-	16.14 KB
FreeSql	FromSqlFirst	Post	196.92 us	19	3.2500	0.7500	0.2500	19.17 KB
NHibernate	Get<T>	Post	201.46 us	20	5.7500	0.7500	-	32.62 KB
NHibernate	HQL	Post	207.57 us	21	5.5000	0.7500	-	35.11 KB
Chloe	First	Post	209.26 us	21	5.0000	0.7500	0.2500	29.85 KB
EF Core	SqlQuery	Post	234.51 us	22	4.0000	-	-	20.64 KB
EF Core	First	Post	238.67 us	23	4.2500	-	-	20.33 KB
EF 6	First	Post	243.86 us	24	10.5000	-	-	48.44 KB
LINQ to SQL	ExecuteQuery	Post	250.54 us	25	7.0000	1.0000	0.5000	42.48 KB
EF Core	'First (No Tracking)'	Post	250.59 us	25	3.7500	0.7500	0.2500	21.44 KB
NHibernate	Criteria	Post	256.87 us	26	11.0000	1.0000	-	65.64 KB
EF 6	'First (No Tracking)'	Post	314.69 us	27	9.0000	1.0000	-	55.27 KB
NHibernate	SQL	Post	336.02 us	28	19.0000	1.0000	-	101.4 KB
FreeSql	First	Post	429.83 us	29	5.0000	1.0000	0.5000	31.56 KB
SqlSugar	First	Post	583.49 us	30	10.0000	1.0000	-	62.5 KB
LINQ to SQL	First	Post	761.03 us	31	3.0000	1.0000	-	14.7 KB
NHibernate	LINQ	Post	778.43 us	32	10.0000	2.0000	-	64.03 KB