feat(genhttp-11-kestrel): Enable limited ws

[Kaliumhexacyanoferrat]

Description

---

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

Command	Description
/benchmark -f <framework>	Run every test the framework subscribes to
/benchmark -f <framework> -t <test>	Run one test only
/benchmark -f <framework> --save	Run and save results (updates the leaderboard on merge)
/benchmark -f <framework> -t <test> --save	Run one test and save results
/benchmark -f <framework> --compare <other>	Measure the deltas against another framework instead of this one

Always specify -f <framework>; the flags combine in any order. Results come back as a comment with a per-profile table of RPS, p99, CPU and memory.

What the deltas are measured against. By default, this framework's own results published on main - answering "did this change help?". When you are tuning a variant or a successor entry, --compare re-bases them on another entry instead:

/benchmark -f genhttp-11 --compare genhttp

The reply states which baseline it used, and profiles the other framework does not run show n/a rather than a delta.

---

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-11-kestrel -t echo-ws-limited --save

[MDA2AV]

/benchmark -f genhttp-11-kestrel -t echo-ws-limited --save

[github-actions]

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

[github-actions]

Benchmark Results

Framework: genhttp-11-kestrel | Test: echo-ws-limited

Test	Conn	RPS	CPU	Mem	Δ RPS	Δ Mem
echo-ws-limited	512	433,788	3446.9%	328MiB	NEW	NEW
echo-ws-limited	4096	434,620	3393.0%	258MiB	NEW	NEW

Full log

#14 CACHED

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

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

#17 [stage-1 5/5] COPY --from=build /app .
#17 CACHED

#18 exporting to image
#18 exporting layers done
#18 exporting manifest sha256:88656425edbbae1fba5e2f79dbda6096ebaf08214872752e5681f95284cfbe2c done
#18 exporting config sha256:81a52862fa222fb0868e4a6bfff497edd44571684513a0a90d5b37e4db428bc0 done
#18 exporting attestation manifest sha256:1ab303565cf06c951d75a8fddfae412e9b1fe5d4983203c9862b47438e0e7d68 0.0s done
#18 exporting manifest list sha256:64c2bc303ff997f53017fe68cabb18e396d209d7be990a00c1bf192efe95120c 0.0s done
#18 naming to docker.io/library/httparena-genhttp-11-kestrel:latest
#18 naming to docker.io/library/httparena-genhttp-11-kestrel:latest done
#18 unpacking to docker.io/library/httparena-genhttp-11-kestrel:latest 0.0s done
#18 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-11-kestrel / echo-ws-limited / 512c (tool=gcannon) ===
==============================================
[info] waiting for server...
[info] server ready

[run 1/3]
gcannon v0.5.3 [WS]
  Target:    localhost:8080/ws
  Threads:   64
  Conns:     512 (8/thread)
  Pipeline:  1
  Req/conn:  10
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency     81us     67us     99us    192us   3.27ms

  1479477 frames sent in 5.00s, 1479447 frames received
  Throughput: 295.79K req/s
  Bandwidth:  7.62MB/s
  WS upgrades: 149196
  WS frames:   1479447
  Latency samples: 1479447 / 1479447 responses (100.0%)
  Reconnects: 147939
[info] CPU 3772.0% | Mem 307MiB

[run 2/3]
gcannon v0.5.3 [WS]
  Target:    localhost:8080/ws
  Threads:   64
  Conns:     512 (8/thread)
  Pipeline:  1
  Req/conn:  10
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency     72us     55us     91us    256us   3.54ms

  2161282 frames sent in 5.00s, 2161266 frames received
  Throughput: 432.10K req/s
  Bandwidth:  11.13MB/s
  WS upgrades: 220671
  WS frames:   2161266
  Latency samples: 2161263 / 2161266 responses (100.0%)
  Reconnects: 216122
[info] CPU 3422.4% | Mem 315MiB

[run 3/3]
gcannon v0.5.3 [WS]
  Target:    localhost:8080/ws
  Threads:   64
  Conns:     512 (8/thread)
  Pipeline:  1
  Req/conn:  10
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency     73us     55us     90us    287us   3.62ms

  2168934 frames sent in 5.00s, 2168944 frames received
  Throughput: 433.64K req/s
  Bandwidth:  11.17MB/s
  WS upgrades: 221124
  WS frames:   2168944
  Latency samples: 2168927 / 2168944 responses (100.0%)
  Reconnects: 216904
[info] CPU 3446.9% | Mem 328MiB

=== Best: 433788 req/s (CPU: 3446.9%, Mem: 328MiB) ===
[info] saved results/echo-ws-limited/512/genhttp-11-kestrel.json
httparena-bench-genhttp-11-kestrel
httparena-bench-genhttp-11-kestrel

==============================================
=== genhttp-11-kestrel / echo-ws-limited / 4096c (tool=gcannon) ===
==============================================
[info] waiting for server...
[info] server ready

[run 1/3]
gcannon v0.5.3 [WS]
  Target:    localhost:8080/ws
  Threads:   64
  Conns:     4096 (64/thread)
  Pipeline:  1
  Req/conn:  10
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency     89us     71us    103us    293us   3.20ms

  1523078 frames sent in 5.00s, 1523246 frames received
  Throughput: 304.55K req/s
  Bandwidth:  7.84MB/s
  WS upgrades: 152757
  WS frames:   1523246
  Latency samples: 1523246 / 1523246 responses (100.0%)
  Reconnects: 152428
[info] CPU 3709.4% | Mem 242MiB

[run 2/3]
gcannon v0.5.3 [WS]
  Target:    localhost:8080/ws
  Threads:   64
  Conns:     4096 (64/thread)
  Pipeline:  1
  Req/conn:  10
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency     71us     54us     89us    261us   3.35ms

  2162496 frames sent in 5.00s, 2162482 frames received
  Throughput: 432.35K req/s
  Bandwidth:  11.13MB/s
  WS upgrades: 217862
  WS frames:   2162482
  Latency samples: 2162472 / 2162482 responses (100.0%)
  Reconnects: 216249
[info] CPU 3410.7% | Mem 256MiB

[run 3/3]
gcannon v0.5.3 [WS]
  Target:    localhost:8080/ws
  Threads:   64
  Conns:     4096 (64/thread)
  Pipeline:  1
  Req/conn:  10
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency     69us     54us     85us    228us   3.38ms

  2173015 frames sent in 5.00s, 2173100 frames received
  Throughput: 434.46K req/s
  Bandwidth:  11.19MB/s
  WS upgrades: 218686
  WS frames:   2173100
  Latency samples: 2173097 / 2173100 responses (100.0%)
  Reconnects: 217385
[info] CPU 3393.0% | Mem 258MiB

=== Best: 434620 req/s (CPU: 3393.0%, Mem: 258MiB) ===
[info] saved results/echo-ws-limited/4096/genhttp-11-kestrel.json
httparena-bench-genhttp-11-kestrel
httparena-bench-genhttp-11-kestrel
[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/results/genhttp-11-kestrel.json - 2 new, 34 total
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/current.json
[info] done
httparena-postgres
httparena-redis
[info] restoring loopback MTU to 65536