dotnet / dotnet/aspnetcore

Perf regression: multiple_queries, updates

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area-perf perf-regression
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C#
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Description

| Scenario | Environment | Date | Old RPS | New RPS | Change | Deviation | StDev | Dependencies |
| -------- | ----------- | ---- | ------- | ------- | ------ | --------- | ----- | ------------ |
| multiple_queries | Multiple Queries Minimal APIs 14- Trends Database cobalt-cloud-lin-azl3 | 07/31/2026 11:21:33 | 2,807 | 2,625 | -6.49 % (-182) :thumbsdown: | -2.77 σ | 65.84 | Changes NameVersionDiff Microsoft.AspNetCore.Antiforgery.dll `11.0.0-rc.1.26378.118` -> `11.0.0-rc.1.26380.103` https://github.com/dotnet/dotnet/compare/43cdb1f62dde1df80d5f9c3532c8cfacbbc40f53...bfb5366c2c6e45c00cd194bc21c623d32fcd4066 Microsoft.AspNetCore.App `11.0.0-rc.1.26378.118` -> `11.0.0-rc.1.26380.103` https://github.com/dotnet/dotnet/compare/43cdb1f62dde1df80d5f9c3532c8cfacbbc40f53...bfb5366c2c6e45c00cd194bc21c623d32fcd4066 Microsoft.NETCore.App `11.0.0-rc.1.26378.118` -> `11.0.0-rc.1.26380.103` https://github.com/dotnet/dotnet/compare/43cdb1f62dde1df80d5f9c3532c8cfacbbc40f53...bfb5366c2c6e45c00cd194bc21c623d32fcd4066 |
| updates | Updates Minimal APIs 14- Trends Database cobalt-cloud-lin-azl3 | 07/31/2026 11:22:50 | 2,128 | 1,898 | -10.82 % (-230) :thumbsdown: | -2.80 σ | 82.22 | Changes NameVersionDiff Microsoft.AspNetCore.Antiforgery.dll `11.0.0-rc.1.26378.118` -> `11.0.0-rc.1.26380.103` https://github.com/dotnet/dotnet/compare/43cdb1f62dde1df80d5f9c3532c8cfacbbc40f53...bfb5366c2c6e45c00cd194bc21c623d32fcd4066 Microsoft.AspNetCore.App `11.0.0-rc.1.26378.118` -> `11.0.0-rc.1.26380.103` https://github.com/dotnet/dotnet/compare/43cdb1f62dde1df80d5f9c3532c8cfacbbc40f53...bfb5366c2c6e45c00cd194bc21c623d32fcd4066 Microsoft.NETCore.App `11.0.0-rc.1.26378.118` -> `11.0.0-rc.1.26380.103` https://github.com/dotnet/dotnet/compare/43cdb1f62dde1df80d5f9c3532c8cfacbbc40f53...bfb5366c2c6e45c00cd194bc21c623d32fcd4066 |

[PowerBI Dashboard](https://aka.ms/aspnet/benchmarks)

@sebastienros

Contributor guide

Open the contributing guide

Research direction

Start with the multiple_queries and updates benchmark results in the issue and compare the listed dependency commits. Reproduce both Minimal API scenarios using the PowerBI benchmarks dashboard, then identify which change accounts for the regression; done means the affected benchmark returns to the expected performance range.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
backend, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
30/100

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