dotnet / dotnet/aspnetcore

Perf regression: json_middleware, json_middleware, mvc

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area-perf perf-regression
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Description

| Scenario | Environment | Date | Old RPS | New RPS | Change | Deviation | StDev | Dependencies |
| -------- | ----------- | ---- | ------- | ------- | ------ | --------- | ----- | ------------ |
| json_middleware | Json 400k 13- Trends Cobalt Hosted Lin Server | 12/07/2025 10:15:15 | 22,501 | 16,374 | -27.23 % (-6,127) :thumbsdown: | -23.99 σ | 255.43 | Changes NameVersionDiff |
| json_middleware [Fixed] | Json 10k 13- Trends Cobalt Hosted Lin Server | 12/07/2025 10:17:17 | 318,427 | 219,464 | -31.08 % (-98,963) :thumbsdown: | -7.24 σ | 13,667.25 | Changes NameVersionDiff |
| mvc | Json Mvc 13- Trends Cobalt Hosted Lin Server | 12/07/2025 10:09:35 | 566,014 | 231,269 | -59.14 % (-334,746) :thumbsdown: | -23.65 σ | 14,151.86 | Changes NameVersionDiff |

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@sebastienros

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