[C#] GenHTTP: Compliant implementation of CRUD (with 200ms TTL)

[Kaliumhexacyanoferrat]

Description

---

PR Commands — comment on this PR to trigger (requires collaborator approval):

Command	Description
/benchmark -f <framework>	Run all benchmark tests
/benchmark -f <framework> -t <test>	Run a specific test
/benchmark -f <framework> --save	Run and save results (updates leaderboard on merge)

Always specify -f <framework>. Results are automatically compared against the current leaderboard.

---

Run benchmarks locally

You can validate and benchmark your framework locally with the lite script — no CPU pinning, fixed connection counts, all load generators run in Docker.

./scripts/validate.sh <framework>
./scripts/benchmark-lite.sh <framework> baseline
./scripts/benchmark-lite.sh --load-threads 4 <framework>

Requirements: Docker Engine on Linux. Load generators (gcannon, h2load, h2load-h3, wrk, ghz) are built as self-contained Docker images on first run.

[Kaliumhexacyanoferrat]

/benchmark -f genhttp -t crud --save

[github-actions]

👋 /benchmark request received. A collaborator will review and approve the run.

[github-actions]

🚀 Benchmark run triggered for genhttp (test: crud) with --save. Results will be posted here when done.

[github-actions]

Benchmark Results

Framework: genhttp | Test: crud

Test	Conn	RPS	CPU	Mem	Δ RPS	Δ Mem
crud	4096	484,308	4815.4%	1.1GiB	-3.8%	-26.7%

Full log

[info] crud experiment CPU layout: redis=0,64 | server=1-31,65-95 | gcannon=32-63,96-127 | postgres=unpinned
[info] available CPUs: 128
[info] framework: genhttp (genhttp, C#)
[info] subscribed tests: baseline,pipelined,limited-conn,json,json-comp,json-tls,upload,async-db,crud,static,echo-ws,api-4,api-16
[info] building image: httparena-genhttp
#0 building with "default" instance using docker driver

#1 [internal] load build definition from Dockerfile
#1 transferring dockerfile: 356B done
#1 DONE 0.0s

#2 [internal] load metadata for mcr.microsoft.com/dotnet/runtime:10.0
#2 DONE 0.0s

#3 [internal] load metadata for mcr.microsoft.com/dotnet/sdk:10.0
#3 DONE 0.3s

#4 [internal] load .dockerignore
#4 transferring context: 2B done
#4 DONE 0.0s

#5 [build 1/6] FROM mcr.microsoft.com/dotnet/sdk:10.0@sha256:8a90a473da5205a16979de99d2fc20975e922c68304f5c79d564e666dc3982fc
#5 resolve mcr.microsoft.com/dotnet/sdk:10.0@sha256:8a90a473da5205a16979de99d2fc20975e922c68304f5c79d564e666dc3982fc 0.1s done
#5 DONE 0.1s

#6 [stage-1 1/3] FROM mcr.microsoft.com/dotnet/runtime:10.0@sha256:8fb7ff015fcf0ebc6e90105bd6db06875954e6dc3d374b9dbb34c732867d13e4
#6 resolve mcr.microsoft.com/dotnet/runtime:10.0@sha256:8fb7ff015fcf0ebc6e90105bd6db06875954e6dc3d374b9dbb34c732867d13e4 0.1s done
#6 DONE 0.1s

#7 [internal] load build context
#7 transferring context: 537B done
#7 DONE 0.0s

#8 [build 6/6] RUN dotnet publish -c Release --no-self-contained -o /app
#8 CACHED

#9 [stage-1 2/3] WORKDIR /app
#9 CACHED

#10 [build 2/6] WORKDIR /source
#10 CACHED

#11 [build 3/6] COPY genhttp.csproj ./
#11 CACHED

#12 [build 4/6] RUN dotnet restore
#12 CACHED

#13 [build 5/6] COPY . .
#13 CACHED

#14 [stage-1 3/3] COPY --from=build /app .
#14 CACHED

#15 exporting to image
#15 exporting layers done
#15 exporting manifest sha256:35c84b6bf2b842208af490deb234afbe5bde439627701a6467fd7effe0180ed8 done
#15 exporting config sha256:dcf0c8c60751b366ddc471086d19fa42fd2f8b8a98bfe2e94012f35717f18204 done
#15 exporting attestation manifest sha256:f6dd1e63b5852b7dab45f3d4345db5ee606c2b4e90774cffa8aa867d8fb18fdc
#15 exporting attestation manifest sha256:f6dd1e63b5852b7dab45f3d4345db5ee606c2b4e90774cffa8aa867d8fb18fdc 0.0s done
#15 exporting manifest list sha256:a0d1a23995a69a1b7a6fb8d448bdc11534dcd6565133364dad81a22f95afccde 0.0s done
#15 naming to docker.io/library/httparena-genhttp:latest done
#15 unpacking to docker.io/library/httparena-genhttp:latest done
#15 DONE 0.1s
[info] tuning host for benchmark runs
[info] CPU governor → performance
[info] setting kernel socket limits
[info] setting UDP buffer sizes for QUIC
[info] setting loopback MTU to 1500 (realistic Ethernet)
[info] restarting docker daemon
[info] dropping kernel caches
[info] starting postgres sidecar
[info] postgres ready (seeded)
[info] starting redis sidecar (cpuset=0,64)
[info] redis ready

==============================================
=== genhttp / crud / 4096c (tool=gcannon) ===
==============================================
[info] waiting for server...
[info] server ready

[run 1/3]
gcannon v0.5.2
  Target:    localhost:8080/
  Threads:   64
  Conns:     4096 (64/thread)
  Pipeline:  1
  Req/conn:  200
  Templates: 20
  Expected:  200
  Duration:  15s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   10.61ms   10.60ms   24.80ms   38.50ms   52.50ms

  5473692 requests in 15.00s, 5470774 responses
  Throughput: 364.67K req/s
  Bandwidth:  138.49MB/s
  Status codes: 2xx=5470774, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 5470774 / 5470774 responses (100.0%)
  Reconnects: 25507
  Per-template: 166876,170706,202463,212823,244538,261035,284291,307506,323391,331088,332143,332007,332368,330288,331744,331897,311983,267969,215789,179869
  Per-template-ok: 166876,170706,202463,212823,244538,261035,284291,307506,323391,331088,332143,332007,332368,330288,331744,331897,311983,267969,215789,179869
[info] CPU 4992.0% | Mem 1.2GiB

[run 2/3]
gcannon v0.5.2
  Target:    localhost:8080/
  Threads:   64
  Conns:     4096 (64/thread)
  Pipeline:  1
  Req/conn:  200
  Templates: 20
  Expected:  200
  Duration:  15s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   8.01ms   9.69ms   16.30ms   28.30ms   35.00ms

  7266803 requests in 15.00s, 7264631 responses
  Throughput: 484.22K req/s
  Bandwidth:  184.45MB/s
  Status codes: 2xx=7264631, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 7264630 / 7264631 responses (100.0%)
  Reconnects: 34389
  Per-template: 277783,246338,256841,262864,290034,300565,328709,341692,373873,382741,419878,429770,444235,454565,455222,455937,437631,406098,371584,328270
  Per-template-ok: 277783,246338,256841,262864,290034,300565,328709,341692,373873,382741,419878,429770,444235,454565,455222,455937,437631,406098,371584,328270
[info] CPU 4815.4% | Mem 1.1GiB

[run 3/3]
gcannon v0.5.2
  Target:    localhost:8080/
  Threads:   64
  Conns:     4096 (64/thread)
  Pipeline:  1
  Req/conn:  200
  Templates: 20
  Expected:  200
  Duration:  15s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   8.05ms   9.83ms   15.20ms   27.80ms   39.00ms

  7224715 requests in 15.00s, 7222253 responses
  Throughput: 481.41K req/s
  Bandwidth:  183.60MB/s
  Status codes: 2xx=7222253, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 7222249 / 7222253 responses (100.0%)
  Reconnects: 34134
  Per-template: 269173,240326,257095,262178,291131,301516,330638,341994,375834,385452,419707,430243,440435,450238,451804,453648,435949,399647,363813,321428
  Per-template-ok: 269173,240326,257095,262178,291131,301516,330638,341994,375834,385452,419707,430243,440435,450238,451804,453648,435949,399647,363813,321428
[info] CPU 4790.6% | Mem 1.1GiB

=== Best: 484308 req/s (CPU: 4815.4%, Mem: 1.1GiB) ===
[info] input BW: 41.57MB/s (avg template: 90 bytes)
[info] saved results/crud/4096/genhttp.json
httparena-bench-genhttp
httparena-bench-genhttp
[info] rebuilding site/data/*.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/frameworks.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/crud-4096.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/current.json
[info] done
httparena-postgres
httparena-redis
[info] restoring loopback MTU to 65536
[info] restoring CPU governor → powersave