Run 01a02032 · KernelIndex

Primary measurement

9.49µsmean

Rank 7 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

87.63× reference

Identity

implementationgpt-o3_cuda_a1fa19

projectgpt-o3

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadbatch_size = 32 · bf16

comparison keysha256:d828ca45c7410848…

sourceFlashInfer-Bench

external idtrace/gpt-o3_cuda_a1fa19/0315f2ba-9254-4de4-854e-7aafe6460edc

sha256:c58d4b1386a10bd9a72e1a9…

Correctness

comparatorflashinfer_bench_eval

max absolute error0

max relative error0

resultpassed

Workload

batch_size32

weightbf16 [512]

hidden_statesbf16 [32, 512]

definition comparatorsol_execbench_eval

Measurements

latency · mean9.49 µs

Protocol

harnessflashinfer-bench

timerharness_reported

primaryStatisticmean

correctnessReferencedefinition reference implementation

comparabilityFamilyflashinfer_bench_trace

Environment

gpuNVIDIA B200 (unknown)

cudaToolkit12.8

frameworkpytorch 2.8.0+cu128

Artifacts

logssha256:f97873cc549b2a30… · text/plain · unavailable

Replications and notes

No attestations yet.

Community attestations. They never change the evidence level; only a KernelIndex-controlled rerun does.

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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 9489
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
          "uri": "kernelindex:artifact/sha256:f97873cc549b2a30fd704f265faf97857bfb762da49abdfe9c82ddb1f638f0cc",
          "digest": "sha256:f97873cc549b2a30fd704f265faf97857bfb762da49abdfe9c82ddb1f638f0cc"
        }
      },
      "observedAt": "2025-10-16T12:20:10.166Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0,
        "maximumRelativeError": 0
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.009488850315181064,
          "speedup_factor": 87.63425191048043,
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        "benchmark": "rmsnorm_h512"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:a6262b2545f3d21c3fad3005a24c462e20f0894cb39670b003cad8587539b74f",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:13a126d0a3661cf52b34ed0e27e1b1f7e445116cb018260a4dc62103333e5780"
    },
    "metadata": {
      "name": "sol-trace-rmsnorm-h512-0315f2ba",
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    },
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  "protocol": {
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      },
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      "measurement": {
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        "primaryStatistic": "mean"
      },
      "comparability": {
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      }
    },
    "metadata": {
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      "title": "FlashInfer-Bench trace harness"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
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  "environment": {
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      "title": "NVIDIA B200 (trace-reported software)"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}

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Published 2026-08-20 · FlashInfer-Bench · Apache-2.0All results for RMSNorm h512 →JSON

gpt-o3 / cudaa1fa19