Run 01a02032 · KernelIndex

Primary measurement

46.3µsmean

Rank 2 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

39.06× reference

Identity

implementationgpt-5_cuda_5eb89c

projectgpt-5-2025-08-07

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadnum_pages = 989669 · batch_size = 1 · len_indptr = 2 · num_kv_indices = 8 · bf16

comparison keysha256:15442e4c55ccb31b…

sourceFlashInfer-Bench

external idtrace/gpt-5_cuda_5eb89c/00cb2bc2-c7c7-43a1-b857-b516eb2ce061

sha256:0bf194af2152a2651f4fbd0…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.00006103515625

max relative error0.0061349631287157536

resultpassed

Workload

num_pages989669

batch_size1

len_indptr2

num_kv_indices8

q_pebf16 [1, 16, 64]

q_nopebf16 [1, 16, 512]

ckv_cachebf16 [989669, 1, 512]

kpe_cachebf16 [989669, 1, 64]

kv_indptrint32 [2]

kv_indicesint32 [8]

definition comparatorsol_execbench_eval

Measurements

latency · mean46.3 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

logssha256:7e96f53b5b4a5acb… · text/plain · unavailable

Replications and notes

No attestations yet.

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": 46319
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
          "uri": "kernelindex:artifact/sha256:7e96f53b5b4a5acbabc650f442ebf5c14ee8d0bf65470316354185550fa59b02",
          "digest": "sha256:7e96f53b5b4a5acbabc650f442ebf5c14ee8d0bf65470316354185550fa59b02"
        }
      },
      "observedAt": "2025-10-16T11:04:55.852Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.00006103515625,
        "maximumRelativeError": 0.0061349631287157536
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.04631896852927634,
          "speedup_factor": 39.06382927875624,
          "reference_latency_ms": 1.8093962789957339
        },
        "benchmark": "mla_paged_decode_h16_ckv512_kpe64_ps1"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:186965a1b5fbb764f1ad8acc7d63d0b223f3305d1fa39fb9d04be9ef3565e6aa",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:100fe0f4645f98496d3ac5f7d2968f8b2599e456b298d4fc776e6359a9b00533"
    },
    "metadata": {
      "name": "sol-trace-mla-paged-decode-h16-ckv512-kpe64-ps1-00cb2bc2",
      "title": "gpt-5_cuda_5eb89c · mla_paged_decode_h16_ckv512_kpe64_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": {
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        "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 MLA paged decode h16 ckv512 kpe64 ps1 →JSON

gpt-5 / cuda5eb89c