dotnet / dotnet/aspnetcore

Perf regression: fortunes_ef, mvc, tls-renegotiation-kestrel

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area-perf perf-regression
Dominant language
C#
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Forks
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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 |
| -------- | ----------- | ---- | ------- | ------- | ------ | --------- | ----- | ------------ |
| fortunes_ef [Fixed] | Fortunes Platform EF 8- Trends Database gold-win | 08/19/2026 05:19:38 | 642,467 | 613,136 | -4.57 % (-29,331) :thumbsdown: | -2.71 σ | 10,804.60 | Changes NameVersionDiff |
| mvc | Json Mvc 4- Trends gold-win | 08/19/2026 07:52:49 | 1,136,870 | 1,082,014 | -4.83 % (-54,855) :thumbsdown: | -3.31 σ | 16,562.19 | Changes NameVersionDiff |
| tls-renegotiation-kestrel [Fixed] | Kestrel Linux: TLS Renegotiation 9- Trends cobalt-cloud-lin | 08/18/2026 21:55:56 | 934 | 886 | -100.00 % (-48) :thumbsdown: | -2.99 σ | 16.04 | Changes NameVersionDiff |

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

@sebastienros

Contributor guide

Open the contributing guide

Research direction

Start with the linked PowerBI Dashboard and compare the fortunes_ef, mvc, and tls-renegotiation-kestrel benchmark results and their listed environment details. The issue names no source files or tests; done means identifying a reproducible cause and verifying the affected scenarios no longer show the regression.

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
Active
Clarity
Needs clarification
Newbie friendliness
35/100

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