Run 01a00b1d · KernelIndex

Primary measurement

920.5µsmean

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

54.82× reference

Identity

implementationflashinfer_wrapper_50ca11

projectFlashInfer-Bench baselines

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadtotal_q = 31744 · num_pages = 512 · batch_size = 33 · len_indptr = 33 · num_kv_indices = 512 · bf16

comparison keysha256:3f3accc57376074f…

sourceFlashInfer-Bench

external idtrace/flashinfer_wrapper_50ca11/36916c21-db41-447b-bbc9-b88d5d6df89d

sha256:4ef84ecab36b9fb8c44a834…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.015625

max relative error32334.107421875

resultpassed

Workload

total_q31744

num_pages512

batch_size33

len_indptr33

num_kv_indices512

qbf16 [31744, 32, 128]

k_cachebf16 [512, 64, 4, 128]

v_cachebf16 [512, 64, 4, 128]

kv_indptrint32 [33]

qo_indptrint32 [33]

kv_indicesint32 [512]

kv_last_page_lenint32 [33]

definition comparatorsol_execbench_eval

Measurements

latency · mean920.5 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": 920528
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2026-04-09T14:41:34.670Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.015625,
        "maximumRelativeError": 32334.107421875
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.9205280244350433,
          "speedup_factor": 54.81650470679438,
          "reference_latency_ms": 50.46012878417969
        },
        "benchmark": "gqa_paged_prefill_causal_h32_kv4_d128_ps64"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:3720ff67e322053b43c5a505091e36e683c0b5001937822487da6ecb77a9d5d9",
      "environmentDigest": "sha256:83c9b6e78d493927f18878d57448d9a0d2221a70840b562455b2665a2897ba19",
      "implementationDigest": "sha256:acde942516e792c7f8be33ff2bc6496bc95b7562eb8e47dfa8352f7e7f34aa6c"
    },
    "metadata": {
      "name": "sol-trace-gqa-paged-prefill-causal-h32-kv4-d128-ps64-36916c21",
      "title": "flashinfer_wrapper_50ca11 · gqa_paged_prefill_causal_h32_kv4_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 h32 kv4 d128 ps64 →JSON

flashinfer / wrapper50ca11