ef-lazy-loading-benchmark

Contains a .NET benchmark for Entity Framework Core 8's lazy loading to evaluate memory footprint regression.

To run the benchmarks, use the following commands:

For Entity Framework 7:

dotnet run --project ef7/ef7.csproj -c Release

For Entity Framework 8:

dotnet run --project ef8/ef8.csproj -c Release

Results with lazy-loading

BenchmarkDotNet v0.13.12, macOS Sonoma 14.3 (23D56) [Darwin 23.3.0] Apple M1 Pro, 1 CPU, 10 logical and 10 physical cores .NET SDK 8.0.203 [Host] : .NET 8.0.3 (8.0.324.11423), Arm64 RyuJIT AdvSIMD DefaultJob : .NET 8.0.3 (8.0.324.11423), Arm64 RyuJIT AdvSIMD

Microsoft.EntityFrameworkCore 8.0.3

Method	Mean	Error	StdDev	Gen0	Gen1	Gen2	Allocated
Enumerate	3.104 s	0.0120 s	0.0100 s	281000.0000	104000.0000	2000.0000	1.81 GB

Microsoft.EntityFrameworkCore 7.0.17

Method	Mean	Error	StdDev	Gen0	Gen1	Gen2	Allocated
Enumerate	1.968 s	0.0381 s	0.0356 s	168000.0000	46000.0000	1000.0000	1.16 GB

Results without lazy-loading

Microsoft.EntityFrameworkCore 8.0.3

Method	Mean	Error	StdDev	Gen0	Gen1	Gen2	Allocated
Enumerate	1.182 s	0.0093 s	0.0087 s	117000.0000	34000.0000	1000.0000	861.84 MB

Microsoft.EntityFrameworkCore 7.0.17

Method	Mean	Error	StdDev	Gen0	Gen1	Gen2	Allocated
Enumerate	1.266 s	0.0102 s	0.0096 s	132000.0000	40000.0000	1000.0000	953.39 MB