dotnet / dotnet/aspnetcore

Perf regression: json_middleware

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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 14- Trends 28 Core Cobalt Hosted Lin Server | 12/16/2025 20:36:20 | 19,356 | 12,376 | -36.06 % (-6,981) :thumbsdown: | -2.02 σ | 3,451.84 | Changes NameVersionDiff |

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

@sebastienros

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