gpt-5 / tritoncb1275
GQA paged decode h32 kv8 d128 ps1 · num_pages = 62605 · batch_size = 64 · len_indptr = 65 · num_kv_indices = 53334 · bf16 · run 01a02032-5922…
●passedReported evidence
Not re-observed recently.
Primary measurement
437.9µsmean
Rank 5 in its comparison group · source-native comparison · observed 2025-10-16
4331.22× reference
Identity
implementationgpt-5_triton_cb1275
projectgpt-5-2025-08-07
revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c
workloadnum_pages = 62605 · batch_size = 64 · len_indptr = 65 · num_kv_indices = 53334 · bf16
comparison keysha256:793ed3b5dad81f7f…
sourceFlashInfer-Bench
external idtrace/gpt-5_triton_cb1275/cfccc048-cb5f-4d59-a60e-1e10baa63378
sha256:2bcc4ad84baa1fea172db46…
Correctness
comparatorflashinfer_bench_eval
max absolute error0.0009765625
max relative error2.30619740486145
resultpassed
Workload
num_pages62605
batch_size64
len_indptr65
num_kv_indices53334
qbf16 [64, 32, 128]
k_cachebf16 [62605, 1, 8, 128]
v_cachebf16 [62605, 1, 8, 128]
kv_indptrint32 [65]
kv_indicesint32 [53334]
definition comparatorsol_execbench_eval
Measurements
latency · mean437.9 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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Community attestations. They never change the evidence level; only a KernelIndex-controlled rerun does.
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{
"run": {
"kind": "BenchmarkRun",
"spec": {
"status": "passed",
"timing": {
"latencyNs": {
"mean": 437877
},
"primaryStatistic": "mean"
},
"observedAt": "2025-10-16T02:00:15.882Z",
"correctness": {
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"maximumAbsoluteError": 0.0009765625,
"maximumRelativeError": 2.30619740486145
},
"sourceNative": {
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"metrics": {
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"speedup_factor": 4331.220162170641,
"reference_latency_ms": 1896.5419514973958
},
"benchmark": "gqa_paged_decode_h32_kv8_d128_ps1"
},
"protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
"workloadDigest": "sha256:f66fabff3a0e481b4d026907c8ce584555f02b2f4f64082277b8251a9876a575",
"environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
"implementationDigest": "sha256:10231abe2f3401b0219cd1d797d674a685a6d3a88856dbfa7eb880b115a36a37"
},
"metadata": {
"name": "sol-trace-gqa-paged-decode-h32-kv8-d128-ps1-cfccc048",
"title": "gpt-5_triton_cb1275 · gqa_paged_decode_h32_kv8_d128_ps1"
},
"apiVersion": "kernelindex.dev/v1alpha1"
},
"protocol": {
"kind": "BenchmarkProtocol",
"spec": {
"harness": {
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"repository": "https://github.com/flashinfer-ai/flashinfer-bench"
},
"correctness": {
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"comparator": "flashinfer_bench_eval"
},
"measurement": {
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"primaryStatistic": "mean"
},
"comparability": {
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},
"metadata": {
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"title": "FlashInfer-Bench trace harness"
},
"apiVersion": "kernelindex.dev/v1alpha1"
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"environment": {
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"spec": {
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"software": {
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}
},
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"title": "NVIDIA B200 (trace-reported software)"
},
"apiVersion": "kernelindex.dev/v1alpha1"
}
}Cite this record (permalink, digest, access date)
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Published 2026-08-20 · FlashInfer-Bench · Apache-2.0All results for GQA paged decode h32 kv8 d128 ps1 →JSON