Perf improvement: json, json_middleware, mvc

| Scenario | Environment | Date | Old RPS | New RPS | Change | Deviation | StDev | Dependencies |
| -------- | ----------- | ---- | ------- | ------- | ------ | --------- | ----- | ------------ |
| json | Json Minimal APIs 13- Trends cobalt-hosted-lin | 05/21/2026 08:39:04 | 312,403 | 615,868 | 97.14 % (303,465) :thumbsup: | 2.71 σ | 112,167.90 | Changes NameVersionDiff Microsoft.AspNetCore.Antiforgery.dll `11.0.0-preview.5.26269.105` -> `11.0.0-preview.5.26269.119` https://github.com/dotnet/dotnet/compare/5f66bab627b918f4a101caea5eebbe9321fbf9fe...85afae000275066ce60df20227f736154bf172ab Microsoft.AspNetCore.App `11.0.0-preview.5.26269.105` -> `11.0.0-preview.5.26269.119` https://github.com/dotnet/dotnet/compare/5f66bab627b918f4a101caea5eebbe9321fbf9fe...85afae000275066ce60df20227f736154bf172ab Microsoft.NETCore.App `11.0.0-preview.5.26269.105` -> `11.0.0-preview.5.26269.119` https://github.com/dotnet/dotnet/compare/5f66bab627b918f4a101caea5eebbe9321fbf9fe...85afae000275066ce60df20227f736154bf172ab |
| json_middleware | Json 10k 13- Trends cobalt-hosted-lin-azl3 | 05/21/2026 08:41:29 | 208,235 | 407,549 | 95.72 % (199,314) :thumbsup: | 2.33 σ | 85,587.82 | Changes NameVersionDiff Microsoft.AspNetCore.Antiforgery.dll `11.0.0-preview.5.26268.112` -> `11.0.0-preview.5.26269.119` https://github.com/dotnet/dotnet/compare/c5d1f734662eb718e7431a4e679a29e47c380f04...85afae000275066ce60df20227f736154bf172ab Microsoft.AspNetCore.App `11.0.0-preview.5.26268.112` -> `11.0.0-preview.5.26269.119` https://github.com/dotnet/dotnet/compare/c5d1f734662eb718e7431a4e679a29e47c380f04...85afae000275066ce60df20227f736154bf172ab Microsoft.NETCore.App `11.0.0-preview.5.26268.112` -> `11.0.0-preview.5.26269.119` https://github.com/dotnet/dotnet/compare/c5d1f734662eb718e7431a4e679a29e47c380f04...85afae000275066ce60df20227f736154bf172ab |
| mvc | Json Mvc 13- Trends cobalt-hosted-lin | 05/21/2026 08:38:11 | 267,608 | 499,179 | 86.53 % (231,571) :thumbsup: | 2.51 σ | 92,135.14 | Changes NameVersionDiff Microsoft.AspNetCore.Antiforgery.dll `11.0.0-preview.5.26269.105` -> `11.0.0-preview.5.26269.119` https://github.com/dotnet/dotnet/compare/5f66bab627b918f4a101caea5eebbe9321fbf9fe...85afae000275066ce60df20227f736154bf172ab Microsoft.AspNetCore.App `11.0.0-preview.5.26269.105` -> `11.0.0-preview.5.26269.119` https://github.com/dotnet/dotnet/compare/5f66bab627b918f4a101caea5eebbe9321fbf9fe...85afae000275066ce60df20227f736154bf172ab Microsoft.NETCore.App `11.0.0-preview.5.26269.105` -> `11.0.0-preview.5.26269.119` https://github.com/dotnet/dotnet/compare/5f66bab627b918f4a101caea5eebbe9321fbf9fe...85afae000275066ce60df20227f736154bf172ab |

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