Run 01a00b1d · KernelIndex

Primary measurement

8.16µsmean

Rank 1 in its comparison group · source-native comparison · observed 2026-04-20

25.32× reference

Identity

implementationflashinfer_wrapper_3f9411

projectFlashInfer-Bench baselines

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadnum_pages = 16 · batch_size = 1 · len_indptr = 2 · num_kv_indices = 15 · bf16

comparison keysha256:c78e9b5a1d9abc9a…

sourceFlashInfer-Bench

external idtrace/flashinfer_wrapper_3f9411/11155649-fd33-4b5c-80d8-05553c0cec0b

sha256:26d3a9088d5bf2d2dbd093c…

Correctness

comparatorflashinfer_bench_eval

max absolute error9.5367431640625e-7

max relative error2.287309399662263e-7

resultpassed

Workload

num_pages16

batch_size1

len_indptr2

num_kv_indices15

qbf16 [1, 32, 64]

k_cachebf16 [16, 1, 8, 64]

v_cachebf16 [16, 1, 8, 64]

kv_indptrint32 [2]

kv_indicesint32 [15]

definition comparatorsol_execbench_eval

Measurements

latency · mean8.16 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

No artifacts published with this run.

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": 8160
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2026-04-20T07:33:20.913Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 9.5367431640625e-7,
        "maximumRelativeError": 2.287309399662263e-7
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.0081599997356534,
          "speedup_factor": 25.318954899295225,
          "reference_latency_ms": 0.2066026652852694
        },
        "benchmark": "gqa_paged_decode_h32_kv8_d64_ps1"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:296b3aa7ec357bb7be5615647d6d6e26423b65f53601ace50c0622c5ab3bf177",
      "environmentDigest": "sha256:83c9b6e78d493927f18878d57448d9a0d2221a70840b562455b2665a2897ba19",
      "implementationDigest": "sha256:6297656ade58a022f4dbbbb4c45ea7e22fdf95d671129bb497da3128abe53639"
    },
    "metadata": {
      "name": "sol-trace-gqa-paged-decode-h32-kv8-d64-ps1-11155649",
      "title": "flashinfer_wrapper_3f9411 · gqa_paged_decode_h32_kv8_d64_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": "2.11.0+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 decode h32 kv8 d64 ps1 →JSON

flashinfer / wrapper3f9411