Run 01a00b1d · KernelIndex

Primary measurement

16.8µsmean

Rank 1 in its comparison group · source-native comparison · observed 2026-04-09

20.94× reference

Identity

implementationflashinfer_wrapper_69a524

projectFlashInfer-Bench baselines

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadtotal_q = 1 · num_pages = 65 · len_indptr = 2 · num_kv_indices = 1 · bf16

comparison keysha256:20e59693619fef35…

sourceFlashInfer-Bench

external idtrace/flashinfer_wrapper_69a524/5cd9370b-df52-4d4f-913f-297445c59be3

sha256:b969062130568d6dd6a99dd…

Correctness

comparatorflashinfer_bench_eval

max absolute error4.76837158203125e-7

max relative error0.000004121795427636243

resultpassed

Workload

total_q1

num_pages65

len_indptr2

num_kv_indices1

qbf16 [1, 16, 128]

k_cachebf16 [65, 64, 2, 128]

v_cachebf16 [65, 64, 2, 128]

kv_indptrint32 [2]

qo_indptrint32 [2]

kv_indicesint32 [1]

kv_last_page_lenint32 [2]

definition comparatorsol_execbench_eval

Measurements

latency · mean16.8 µs

Protocol

harnessflashinfer-bench

timerharness_reported

primaryStatisticmean

correctnessReferencedefinition reference implementation

comparabilityFamilyflashinfer_bench_trace

Environment

gpuNVIDIA B200 (unknown)

cudaToolkit13.0

frameworkpytorch 2.11.0+cu130

Artifacts

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Replications and notes

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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": 16757
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2026-04-09T15:29:27.888Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 4.76837158203125e-7,
        "maximumRelativeError": 0.000004121795427636243
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.01675733334074418,
          "speedup_factor": 20.937937795203105,
          "reference_latency_ms": 0.3508640031019847
        },
        "benchmark": "gqa_paged_prefill_causal_h16_kv2_d128_ps64"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:e4e9d3cd41ed07c0a694a5f7e1d89f948044846051c2089e4f844e3c32e1997d",
      "environmentDigest": "sha256:83c9b6e78d493927f18878d57448d9a0d2221a70840b562455b2665a2897ba19",
      "implementationDigest": "sha256:91bbf8de81da85fbded4c8d7049b3d3de10dddfb3226d1299660eee785307ac7"
    },
    "metadata": {
      "name": "sol-trace-gqa-paged-prefill-causal-h16-kv2-d128-ps64-5cd9370b",
      "title": "flashinfer_wrapper_69a524 · gqa_paged_prefill_causal_h16_kv2_d128_ps64"
    },
    "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": "2.11.0+cu130"
        },
        "libraries": {
          "triton": "3.6.0"
        },
        "cudaToolkit": "13.0"
      }
    },
    "metadata": {
      "name": "sol-trace-nvidia-b200-2-11-0-cu130-3-6-0-13-0",
      "title": "NVIDIA B200 (trace-reported software)"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}

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Published 2026-08-16 · FlashInfer-Bench · Apache-2.0All results for GQA paged prefill causal h16 kv2 d128 ps64 →JSON

flashinfer / wrapper69a524