Run 01a02032 · KernelIndex

Primary measurement

162.4µsmean

Rank 4 in its comparison group · source-native comparison · observed 2025-10-21

Compare with #1 →

26.32× reference

Identity

implementationgemini-2.5-pro_triton_3nob6q

projectgemini-2.5-pro

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadtotal_q = 1 · num_pages = 50 · len_indptr = 2 · num_kv_indices = 33 · bf16

comparison keysha256:43ffb5f6baa6317d…

sourceFlashInfer-Bench

external idtrace/gemini-2.5-pro_triton_3nob6q/c3c5535c-1829-4618-b629-129c0190dfc4

sha256:3d58136f1daad30334d4a95…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.0078125

max relative error53.03485870361328

resultpassed

Workload

total_q1

num_pages50

len_indptr2

num_kv_indices33

qbf16 [1, 32, 128]

k_cachebf16 [50, 1, 4, 128]

v_cachebf16 [50, 1, 4, 128]

kv_indptrint32 [2]

qo_indptrint32 [2]

kv_indicesint32 [33]

definition comparatorsol_execbench_eval

Measurements

latency · mean162.4 µs

Protocol

harnessflashinfer-bench

timerharness_reported

primaryStatisticmean

correctnessReferencedefinition reference implementation

comparabilityFamilyflashinfer_bench_trace

Environment

gpuNVIDIA B200 (unknown)

cudaToolkit12.8

frameworkpytorch 2.8.0+cu128

Artifacts

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Replications and notes

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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 162389
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2025-10-21T13:33:50.724Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.0078125,
        "maximumRelativeError": 53.03485870361328
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.1623888306091997,
          "speedup_factor": 26.320138930822093,
          "reference_latency_ms": 4.274096582447871
        },
        "benchmark": "gqa_paged_prefill_causal_h32_kv4_d128_ps1"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:cd7a089b5f5dee3c54ceb877edb5fb96771d93886f6eb3bc743dcbdbc8357c31",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:3f88e26faec95e1c346dfe300a637a435a465b15bceecb537f747397fc559e6c"
    },
    "metadata": {
      "name": "sol-trace-gqa-paged-prefill-causal-h32-kv4-d128-ps1-c3c5535c",
      "title": "gemini-2.5-pro_triton_3nob6q · gqa_paged_prefill_causal_h32_kv4_d128_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": "2.8.0+cu128"
        },
        "libraries": {
          "triton": "3.4.0"
        },
        "cudaToolkit": "12.8"
      }
    },
    "metadata": {
      "name": "sol-trace-nvidia-b200-2-8-0-cu128-3-4-0-12-8",
      "title": "NVIDIA B200 (trace-reported software)"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}

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Published 2026-08-20 · FlashInfer-Bench · Apache-2.0All results for GQA paged prefill causal h32 kv4 d128 ps1 →JSON

gemini-2.5-pro / triton3nob6q