Run 01a00b1d · KernelIndex

Primary measurement

4.24msmean

Rank 1 in its comparison group · source-native comparison · observed 2026-04-12

6.49× reference

Identity

implementationflashinfer_wrapper_92685d

projectFlashInfer-Bench baselines

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadtotal_q = 1564 · num_pages = 12675 · len_indptr = 8 · num_kv_indices = 1564 · bf16

comparison keysha256:e8878ea47ad9836d…

sourceFlashInfer-Bench

external idtrace/flashinfer_wrapper_92685d/ad24a7f8-377a-4965-bd10-2b396d50800b

sha256:95cd7d04a3714ebf585d580…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.00048828125

max relative error3969.08642578125

resultpassed

Workload

total_q1564

num_pages12675

len_indptr8

num_kv_indices1564

qbf16 [1564, 24, 128]

k_cachebf16 [12675, 64, 8, 128]

v_cachebf16 [12675, 64, 8, 128]

kv_indptrint32 [8]

qo_indptrint32 [8]

kv_indicesint32 [1564]

kv_last_page_lenint32 [8]

definition comparatorsol_execbench_eval

Measurements

latency · mean4.24 ms

Protocol

harnessflashinfer-bench

timerharness_reported

primaryStatisticmean

correctnessReferencedefinition reference implementation

comparabilityFamilyflashinfer_bench_trace

Environment

gpuNVIDIA GB200 (unknown)

cudaToolkit13.0

frameworkpytorch 2.9.1+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": 4238299
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2026-04-12T13:07:38.953Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.00048828125,
        "maximumRelativeError": 3969.08642578125
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 4.238298654556274,
          "speedup_factor": 6.494258865516927,
          "reference_latency_ms": 27.524608612060547
        },
        "benchmark": "gqa_paged_prefill_causal_h24_kv8_d128_ps64"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:8a8ae2e68a4e9890f868e8e21445f8e0dfd42e2408b475865d103ed10e21a2da",
      "environmentDigest": "sha256:1766500d1b1ecc9787a211f3c98e76bf311671f443544a305252cb4d9564be8b",
      "implementationDigest": "sha256:17129d5acfdad58e41e1e72fdb1b2a4c53cb78a99f60f730c4e6a4d93d38a2b0"
    },
    "metadata": {
      "name": "sol-trace-gqa-paged-prefill-causal-h24-kv8-d128-ps64-ad24a7f8",
      "title": "flashinfer_wrapper_92685d · gqa_paged_prefill_causal_h24_kv8_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 GB200",
        "architecture": "unknown"
      },
      "software": {
        "framework": {
          "name": "pytorch",
          "version": "2.9.1+cu130"
        },
        "libraries": {
          "triton": "3.3.0"
        },
        "cudaToolkit": "13.0"
      }
    },
    "metadata": {
      "name": "sol-trace-nvidia-gb200-2-9-1-cu130-3-3-0-13-0",
      "title": "NVIDIA GB200 (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 h24 kv8 d128 ps64 →JSON

flashinfer / wrapper92685d