Run 01a00b1d · KernelIndex

Primary measurement

33.8µsmean

Rank 1 in its comparison group · source-native comparison · observed 2026-04-05

12.76× reference

Identity

implementationflashinfer_wrapper_a3c91f

projectFlashInfer-Bench baselines

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadtotal_q = 17 · num_pages = 358 · len_indptr = 2 · num_kv_indices = 17 · bf16

comparison keysha256:5f3ed3bc8f66d718…

sourceFlashInfer-Bench

external idtrace/flashinfer_wrapper_a3c91f/90ed522c-88d0-4b2d-9ac8-e87b578dc436

sha256:dbe635d46478884b1f3bfb1…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.001953125

max relative error94.15656280517578

resultpassed

Workload

total_q17

num_pages358

len_indptr2

num_kv_indices17

qbf16 [17, 16, 128]

k_cachebf16 [358, 64, 1, 128]

v_cachebf16 [358, 64, 1, 128]

kv_indptrint32 [2]

qo_indptrint32 [2]

kv_indicesint32 [17]

kv_last_page_lenint32 [2]

definition comparatorsol_execbench_eval

Measurements

latency · mean33.8 µs

Protocol

harnessflashinfer-bench

timerharness_reported

primaryStatisticmean

correctnessReferencedefinition reference implementation

comparabilityFamilyflashinfer_bench_trace

Environment

gpuNVIDIA B200 (unknown)

cudaToolkit12.8

frameworkpytorch 2.9.1+cu128

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": 33819
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2026-04-05T03:33:35.505Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.001953125,
        "maximumRelativeError": 94.15656280517578
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.03381866713364919,
          "speedup_factor": 12.763759405939284,
          "reference_latency_ms": 0.43165333072344464
        },
        "benchmark": "gqa_paged_prefill_causal_h16_kv1_d128_ps64"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:7b6edde06b0e24e334d02f043f2cece8c4bb08e8bf4a70645ff0c268973543e1",
      "environmentDigest": "sha256:af7cb68a0bb0eb9671092a620668c2600f0431301fc46a71807ea75fb7de8bce",
      "implementationDigest": "sha256:7da70090537cde87921da95e1dec0d68fc38f56a34b0271a08df530cb68dddd5"
    },
    "metadata": {
      "name": "sol-trace-gqa-paged-prefill-causal-h16-kv1-d128-ps64-90ed522c",
      "title": "flashinfer_wrapper_a3c91f · gqa_paged_prefill_causal_h16_kv1_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": "2.9.1+cu128"
        },
        "libraries": {
          "triton": "3.5.1"
        },
        "cudaToolkit": "12.8"
      }
    },
    "metadata": {
      "name": "sol-trace-nvidia-b200-2-9-1-cu128-3-5-1-12-8",
      "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 kv1 d128 ps64 →JSON

flashinfer / wrappera3c91f