dotnet / dotnet/aspnetcore

Perf improvement: 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 10k 8- Trends Intel Lin | 02/06/2026 01:15:54 | 441,909 | 444,864 | 0.67 % (2,955) :thumbsup: | 2.60 σ | 1,136.40 | Changes NameVersionDiff Json.dll `1.0.0` -> `1.0.0` https://github.com/aspnet/Benchmarks/compare/982babbf2c675477de565f6a4804087227dd96c0...cd76ba83bf0bd816e434f28f666f0bda9734c2e2 Microsoft.AspNetCore.App `10.0.0-rtm.25513.102` -> `10.0.2` https://github.com/dotnet/aspnetcore/compare/b502b6eeec0db06720ead7fd9570befa39a6b2f7...44525024595742ebe09023abe709df51de65009b Microsoft.NETCore.App `10.0.0-rtm.25513.102` -> `10.0.2` https://github.com/dotnet/runtime/compare/b502b6eeec0db06720ead7fd9570befa39a6b2f7...44525024595742ebe09023abe709df51de65009b Microsoft.AspNetCore.Antiforgery.dll `10.0.2` (__New__ ) n/a System.Private.CoreLib.dll `10.0.2-servicing.25612.105` (__New__ ) n/a Microsoft.AspNetCore.Antiforgery.dll `10.0.0-rtm.25513.102` (__Removed__) n/a |

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@sebastienros

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