Run 01a02032 · KernelIndex

Primary measurement

421.1µsmean

Rank 5 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

77.42× reference

Identity

implementationgpt-o3_cuda_5548d0

projectgpt-o3

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadnum_pages = 486 · batch_size = 1 · len_indptr = 2 · num_kv_indices = 436 · bf16

comparison keysha256:6d4a92b737d3b9ee…

sourceFlashInfer-Bench

external idtrace/gpt-o3_cuda_5548d0/23e02562-75ca-474a-a527-078df0c18fab

sha256:2f20d0b23c56676457adc9d…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.0000019073486328125

max relative error0.02863871306180954

resultpassed

Workload

num_pages486

batch_size1

len_indptr2

num_kv_indices436

qbf16 [1, 32, 128]

k_cachebf16 [486, 1, 4, 128]

v_cachebf16 [486, 1, 4, 128]

kv_indptrint32 [2]

kv_indicesint32 [436]

definition comparatorsol_execbench_eval

Measurements

latency · mean421.1 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

logssha256:5df0f39cd5706140… · text/plain · unavailable

Replications and notes

No attestations yet.

Community attestations. They never change the evidence level; only a KernelIndex-controlled rerun does.

Add a reproduction or note

Canonical manifest

Show manifest

{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 421133
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
          "uri": "kernelindex:artifact/sha256:5df0f39cd570614049b61f6f491f0dd725831b1bce283f7c6d6f689a4475d415",
          "digest": "sha256:5df0f39cd570614049b61f6f491f0dd725831b1bce283f7c6d6f689a4475d415"
        }
      },
      "observedAt": "2025-10-16T01:27:01.877Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.0000019073486328125,
        "maximumRelativeError": 0.02863871306180954
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.42113282460445506,
          "speedup_factor": 77.41884160545884,
          "reference_latency_ms": 32.60361544291178
        },
        "benchmark": "gqa_paged_decode_h32_kv4_d128_ps1"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:f46330f7e1bd2f233baf0bc548d8aa2d264a40eb41f822728e731efe8851b332",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:9065668f65f0c70486702b4d7105d2a2da70e1aebd03314d68ffce9743ed081e"
    },
    "metadata": {
      "name": "sol-trace-gqa-paged-decode-h32-kv4-d128-ps1-23e02562",
      "title": "gpt-o3_cuda_5548d0 · gqa_paged_decode_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"
  }
}

Cite this record (permalink, digest, access date)

Report an issue with this run

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

gpt-o3 / cuda5548d0