dotnet / dotnet/aspnetcore

Perf regression: antiforgery-noop, json_middleware, mTls-handshakes-kestrel

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area-perf perf-regression performance
Dominant language
C#
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Avg merge
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Merged PRs (30d)
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Description

| Scenario | Environment | Date | Old RPS | New RPS | Change | Deviation | StDev | Dependencies |
| -------- | ----------- | ---- | ------- | ------- | ------ | --------- | ----- | ------------ |
| antiforgery-noop | Antiforgery No Operation 14- Trends cobalt-hosted-lin-azl3-28 | 06/22/2026 08:59:19 | 638,907 | 419,753 | -34.30 % (-219,155) :thumbsdown: | -2.04 σ | 107,322.15 | Changes NameVersionDiff |
| json_middleware | Json 400k 14- Trends cobalt-hosted-lin-azl3-28 | 06/22/2026 08:57:34 | 25,787 | 14,131 | -45.20 % (-11,656) :thumbsdown: | -2.49 σ | 4,682.61 | Changes NameVersionDiff |
| mTls-handshakes-kestrel | Kestrel Linux: mTLS Handshakes 14- Trends cobalt-hosted-lin-azl3-28 | 06/22/2026 09:04:10 | 2,505 | 2,315 | -100.00 % (-190) :thumbsdown: | -2.49 σ | 76.44 | Changes NameVersionDiff |

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

@sebastienros

Contributor guide

Open the contributing guide

Research direction

Start with the PowerBI benchmark dashboard and compare the antiforgery-noop, json_middleware, and mTls-handshakes-kestrel scenarios listed in the report. Trace the benchmark results against the reported SDK and commit data; done means identifying and addressing the cause of the reported performance regressions and confirming improved results.

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
35/100

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