Run 01a02032 · KernelIndex

Primary measurement

32.0µsmean

Rank 1 in its comparison group · source-native comparison · observed 2025-10-16

33.47× reference

Identity

implementationgemini-2.5-pro_cuda_2c7e9e

projectgemini-2.5-pro

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadbatch_size = 49532 · bf16

comparison keysha256:bf1d7a2dd3fbad14…

sourceFlashInfer-Bench

external idtrace/gemini-2.5-pro_cuda_2c7e9e/d5201e02-7338-405c-9c4d-ff95a03a00cc

sha256:1e7c07b5af644a170e4b35b…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.015625

max relative error0.007462686393409967

resultpassed

Workload

batch_size49532

weightbf16 [128]

hidden_statesbf16 [49532, 128]

definition comparatorsol_execbench_eval

Measurements

latency · mean32.0 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

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Replications and notes

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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 31964
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2025-10-16T12:11:05.819Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.015625,
        "maximumRelativeError": 0.007462686393409967
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.03196420487541149,
          "speedup_factor": 33.46978747239489,
          "reference_latency_ms": 1.0698351439041112
        },
        "benchmark": "rmsnorm_h128"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:07c800d2f07ce83cb489b2a31a0b088cf172f2236cda700778b02462843c4ed9",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:12e2cec56b60a90c0a87ec22fd89806a63dbe2159b08a3adb5a4ff9214679ae9"
    },
    "metadata": {
      "name": "sol-trace-rmsnorm-h128-d5201e02",
      "title": "gemini-2.5-pro_cuda_2c7e9e · rmsnorm_h128"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "protocol": {
    "kind": "BenchmarkProtocol",
    "spec": {
      "harness": {
        "name": "flashinfer-bench",
        "repository": "https://github.com/flashinfer-ai/flashinfer-bench"
      },
      "correctness": {
        "reference": "definition reference implementation",
        "comparator": "flashinfer_bench_eval"
      },
      "measurement": {
        "timer": "harness_reported",
        "primaryStatistic": "mean"
      },
      "comparability": {
        "family": "flashinfer_bench_trace"
      }
    },
    "metadata": {
      "name": "flashinfer-bench-trace",
      "title": "FlashInfer-Bench trace harness"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
        "vendor": "nvidia",
        "product": "NVIDIA B200",
        "architecture": "unknown"
      },
      "software": {
        "framework": {
          "name": "pytorch",
          "version": "2.8.0+cu128"
        },
        "libraries": {
          "triton": "3.4.0"
        },
        "cudaToolkit": "12.8"
      }
    },
    "metadata": {
      "name": "sol-trace-nvidia-b200-2-8-0-cu128-3-4-0-12-8",
      "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 h128 →JSON

gemini-2.5-pro / cuda2c7e9e