[rack-iodine] Reduce threads

[p8]

More threads seem to cause issues.

[p8]

/benchmark -f rack-iodine --save

[github-actions]

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

[github-actions]

⚠️ /benchmark --save cannot start: main has diverged and cannot be auto-merged into this branch. Please merge or rebase main manually, push, and re-run /benchmark --save.

[p8]

/benchmark -f rack-iodine --save

[github-actions]

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

[MDA2AV]

/benchmark -f rack-iodine --save

[github-actions]

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

[github-actions]

⚠️ /benchmark --save cannot start: main has diverged and cannot be auto-merged into this branch. Please merge or rebase main manually, push, and re-run /benchmark --save.

[p8]

/benchmark -f rack-iodine --save

[github-actions]

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

[github-actions]

Benchmark Results

Framework: rack-iodine | Test: all tests

Test	Conn	RPS	CPU	Mem	Δ RPS	Δ Mem
baseline	512	717,216	5397.0%	4.8GiB	-17.7%	-15.8%
baseline	4096	65,019	4750.0%	5.1GiB	-15.4%	-25.0%
pipelined	512	2,012,637	6587.4%	4.4GiB	+1003.4%	+109.5%
pipelined	4096	1,976,042	6574.9%	4.6GiB	-16.8%	-9.8%
limited-conn	512	59,864	4821.0%	5.1GiB	+0.9%	-10.5%
limited-conn	4096	59,214	4710.9%	5.2GiB	+3.3%	-11.9%

Full log

  Conns:     512 (8/thread)
  Pipeline:  1
  Req/conn:  10
  Templates: 3
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   8.56ms   2.69ms   32.60ms   79.90ms   204.80ms

  299580 requests in 5.00s, 299323 responses
  Throughput: 59.84K req/s
  Bandwidth:  7.02MB/s
  Status codes: 2xx=299323, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 299323 / 299323 responses (100.0%)
  Reconnects: 29706
  Per-template: 99544,100058,99721
  Per-template-ok: 99544,100058,99721
[info] CPU 4821.0% | Mem 5.1GiB

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


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   8.63ms   2.88ms   34.10ms   70.30ms   100.20ms

  295194 requests in 5.00s, 294868 responses
  Throughput: 58.95K req/s
  Bandwidth:  6.92MB/s
  Status codes: 2xx=294868, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 294867 / 294868 responses (100.0%)
  Reconnects: 29353
  Per-template: 98267,98441,98159
  Per-template-ok: 98267,98441,98159
[info] CPU 4736.5% | Mem 5.2GiB

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


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   8.70ms   2.90ms   34.20ms   68.80ms   102.40ms

  292513 requests in 5.00s, 292203 responses
  Throughput: 58.42K req/s
  Bandwidth:  6.85MB/s
  Status codes: 2xx=292203, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 292203 / 292203 responses (100.0%)
  Reconnects: 29084
  Per-template: 97465,97353,97385
  Per-template-ok: 97465,97353,97385
[info] CPU 4694.9% | Mem 5.5GiB

=== Best: 59864 req/s (CPU: 4821.0%, Mem: 5.1GiB) ===
[info] input BW: 4.62MB/s (avg template: 81 bytes)
[info] saved results/limited-conn/512/rack-iodine.json
httparena-bench-rack-iodine
httparena-bench-rack-iodine

==============================================
=== rack-iodine / limited-conn / 4096c (tool=gcannon) ===
==============================================
[info] waiting for server...
[info] server ready

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


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   66.81ms   52.80ms   142.70ms   256.90ms   383.00ms

  299975 requests in 5.00s, 296073 responses
  Throughput: 59.19K req/s
  Bandwidth:  6.94MB/s
  Status codes: 2xx=296073, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 296073 / 296073 responses (100.0%)
  Reconnects: 27794
  Per-template: 98491,99095,98487
  Per-template-ok: 98491,99095,98487
[info] CPU 4710.9% | Mem 5.2GiB

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


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   69.98ms   57.60ms   142.80ms   241.20ms   324.10ms

  279971 requests in 5.00s, 275892 responses
  Throughput: 55.16K req/s
  Bandwidth:  6.47MB/s
  Status codes: 2xx=275892, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 275892 / 275892 responses (100.0%)
  Reconnects: 25775
  Per-template: 91940,92356,91596
  Per-template-ok: 91940,92356,91596
[info] CPU 4446.9% | Mem 5.3GiB

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


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   68.88ms   54.20ms   147.60ms   264.90ms   370.50ms

  285728 requests in 5.00s, 281740 responses
  Throughput: 56.33K req/s
  Bandwidth:  6.61MB/s
  Status codes: 2xx=281740, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 281740 / 281740 responses (100.0%)
  Reconnects: 26419
  Per-template: 93796,94173,93771
  Per-template-ok: 93796,94173,93771
[info] CPU 4659.9% | Mem 5.6GiB

=== Best: 59214 req/s (CPU: 4710.9%, Mem: 5.2GiB) ===
[info] input BW: 4.57MB/s (avg template: 81 bytes)
[info] saved results/limited-conn/4096/rack-iodine.json
httparena-bench-rack-iodine
httparena-bench-rack-iodine
[info] skip: rack-iodine does not subscribe to json
[info] skip: rack-iodine does not subscribe to json-comp
[info] skip: rack-iodine does not subscribe to json-tls
[info] skip: rack-iodine does not subscribe to upload
[info] skip: rack-iodine does not subscribe to api-4
[info] skip: rack-iodine does not subscribe to api-16
[info] skip: rack-iodine does not subscribe to static
[info] skip: rack-iodine does not subscribe to async-db
[info] skip: rack-iodine does not subscribe to crud
[info] skip: rack-iodine does not subscribe to fortunes
[info] skip: rack-iodine does not subscribe to baseline-h2
[info] skip: rack-iodine does not subscribe to static-h2
[info] skip: rack-iodine does not subscribe to baseline-h2c
[info] skip: rack-iodine does not subscribe to json-h2c
[info] skip: rack-iodine does not subscribe to baseline-h3
[info] skip: rack-iodine does not subscribe to static-h3
[info] skip: rack-iodine does not subscribe to gateway-64
[info] skip: rack-iodine does not subscribe to gateway-h3
[info] skip: rack-iodine does not subscribe to production-stack
[info] skip: rack-iodine does not subscribe to unary-grpc
[info] skip: rack-iodine does not subscribe to unary-grpc-tls
[info] skip: rack-iodine does not subscribe to stream-grpc
[info] skip: rack-iodine does not subscribe to stream-grpc-tls
[info] skip: rack-iodine does not subscribe to echo-ws
[info] skip: rack-iodine does not subscribe to echo-ws-pipeline
[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/baseline-4096.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/baseline-512.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/limited-conn-4096.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/limited-conn-512.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/pipelined-4096.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/pipelined-512.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/current.json
[info] done
[info] restoring loopback MTU to 65536
[info] restoring CPU governor → powersave