Perf improvement: json, json_middleware, multiple_queries

| Scenario | Environment | Date | Old RPS | New RPS | Change | Deviation | StDev | Dependencies |
| -------- | ----------- | ---- | ------- | ------- | ------ | --------- | ----- | ------------ |
| json | Json 8- Trends gold-lin | 08/10/2026 12:20:24 | 1,683,416 | 1,735,792 | 3.11 % (52,376) :thumbsup: | 3.72 σ | 14,088.28 | Changes NameVersionDiff Microsoft.AspNetCore.Antiforgery.dll `11.0.0-rc.1.26407.109` -> `11.0.0-rc.1.26409.102` https://github.com/dotnet/dotnet/compare/5e8e4935e407f757ed9f41b1508f5b149713129b...7fb8cef14d9ae6bd729b04638f88d00f1ba7eb99 Microsoft.AspNetCore.App `11.0.0-rc.1.26407.109` -> `11.0.0-rc.1.26409.102` https://github.com/dotnet/dotnet/compare/5e8e4935e407f757ed9f41b1508f5b149713129b...7fb8cef14d9ae6bd729b04638f88d00f1ba7eb99 Microsoft.NETCore.App `11.0.0-rc.1.26407.109` -> `11.0.0-rc.1.26409.102` https://github.com/dotnet/dotnet/compare/5e8e4935e407f757ed9f41b1508f5b149713129b...7fb8cef14d9ae6bd729b04638f88d00f1ba7eb99 |
| json_middleware | Json 400k 10- Trends idna-amd-lin | 08/10/2026 10:06:45 | 1,180 | 1,181 | 0.13 % (2) :thumbsup: | 2.25 σ | 0.68 | Changes NameVersionDiff Microsoft.AspNetCore.Antiforgery.dll `11.0.0-rc.1.26407.111` -> `11.0.0-rc.1.26409.102` https://github.com/dotnet/dotnet/compare/19bc97f3dd3ab67c7810e4ab179125b7c6a60641...7fb8cef14d9ae6bd729b04638f88d00f1ba7eb99 Microsoft.AspNetCore.App `11.0.0-rc.1.26407.111` -> `11.0.0-rc.1.26409.102` https://github.com/dotnet/dotnet/compare/19bc97f3dd3ab67c7810e4ab179125b7c6a60641...7fb8cef14d9ae6bd729b04638f88d00f1ba7eb99 Microsoft.NETCore.App `11.0.0-rc.1.26407.111` -> `11.0.0-rc.1.26409.102` https://github.com/dotnet/dotnet/compare/19bc97f3dd3ab67c7810e4ab179125b7c6a60641...7fb8cef14d9ae6bd729b04638f88d00f1ba7eb99 |
| multiple_queries | Multiple Queries Platform 8- Trends Database gold-lin | 08/10/2026 08:11:16 | 81,695 | 82,881 | 1.45 % (1,185) :thumbsup: | 2.34 σ | 507.34 | Changes NameVersionDiff Microsoft.AspNetCore.Antiforgery.dll `11.0.0-rc.1.26407.109` -> `11.0.0-rc.1.26409.102` https://github.com/dotnet/dotnet/compare/5e8e4935e407f757ed9f41b1508f5b149713129b...7fb8cef14d9ae6bd729b04638f88d00f1ba7eb99 Microsoft.AspNetCore.App `11.0.0-rc.1.26407.109` -> `11.0.0-rc.1.26409.102` https://github.com/dotnet/dotnet/compare/5e8e4935e407f757ed9f41b1508f5b149713129b...7fb8cef14d9ae6bd729b04638f88d00f1ba7eb99 Microsoft.NETCore.App `11.0.0-rc.1.26407.109` -> `11.0.0-rc.1.26409.102` https://github.com/dotnet/dotnet/compare/5e8e4935e407f757ed9f41b1508f5b149713129b...7fb8cef14d9ae6bd729b04638f88d00f1ba7eb99 |

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

@sebastienros

The issue contains benchmark results for json, json_middleware, and multiple_queries plus a PowerBI dashboard; no source files, tests, entry point, or requested change is identified. Start by reviewing the benchmark scenario and dashboard, then clarify which optimization is intended and what benchmark result defines done.

Written by the indexing model from the issue text.