Run 01a02032 · KernelIndex

Primary measurement

255.2µsmean

Rank 2 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

6926.80× reference

Identity

implementationclaude-opus-4-1_triton_4080e2

projectclaude-opus-4-1-20250805

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadnum_pages = 65805 · batch_size = 64 · len_indptr = 65 · num_kv_indices = 56534 · bf16

comparison keysha256:458bd9f8c9e8d6f6…

sourceFlashInfer-Bench

external idtrace/claude-opus-4-1_triton_4080e2/556fea1d-30dd-4f5c-a336-97a3c0c2f8c1

sha256:8a1f23241032b640dc95cae…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.00048828125

max relative error0.30424073338508606

resultpassed

Workload

num_pages65805

batch_size64

len_indptr65

num_kv_indices56534

qbf16 [64, 32, 128]

k_cachebf16 [65805, 1, 8, 128]

v_cachebf16 [65805, 1, 8, 128]

kv_indptrint32 [65]

kv_indicesint32 [56534]

definition comparatorsol_execbench_eval

Measurements

latency · mean255.2 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": 255238
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2025-10-16T02:08:32.826Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.00048828125,
        "maximumRelativeError": 0.30424073338508606
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.2552377270761692,
          "speedup_factor": 6926.7967500385585,
          "reference_latency_ms": 1767.9798583984375
        },
        "benchmark": "gqa_paged_decode_h32_kv8_d128_ps1"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:dffb09a28f02382387a095e8822dc80cc0a5bb255d8fb4238894603da3e780d5",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:d399c1b37d3746d464e37c57904264b7d2a27e5a5c66b03dedf4f37bec7c8e73"
    },
    "metadata": {
      "name": "sol-trace-gqa-paged-decode-h32-kv8-d128-ps1-556fea1d",
      "title": "claude-opus-4-1_triton_4080e2 · gqa_paged_decode_h32_kv8_d128_ps1"
    },
    "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 GQA paged decode h32 kv8 d128 ps1 →JSON

claude-opus-4-1 / triton4080e2