flashinfer_wrapper_bcbabf
GQA paged decode h20 kv4 d128 ps64 · num_pages = 1624 · batch_size = 2 · len_indptr = 3 · num_kv_indices = 500 · bf16 · run 01a00b1d-355e…
●passedReported evidence
Not re-observed recently.
Primary measurement
2.03msmean
Rank 1 in its comparison group · source-native comparison · observed 2026-03-28
0.67× reference
Identity
implementationflashinfer_wrapper_bcbabf
projectFlashInfer-Bench baselines
revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c
workloadnum_pages = 1624 · batch_size = 2 · len_indptr = 3 · num_kv_indices = 500 · bf16
comparison keysha256:c4f4523126bf22e5…
sourceFlashInfer-Bench
sha256:71fe8631300ad5b2418472a…
Correctness
comparatorflashinfer_bench_eval
max absolute error0.000244140625
max relative error19.412446975708008
resultpassed
Workload
num_pages1624
batch_size2
len_indptr3
num_kv_indices500
qbf16 [2, 20, 128]
k_cachebf16 [1624, 64, 4, 128]
v_cachebf16 [1624, 64, 4, 128]
kv_indptrint32 [3]
kv_indicesint32 [500]
kv_last_page_lenint32 [2]
definition comparatorsol_execbench_eval
Measurements
latency · mean2.03 ms
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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{
"run": {
"kind": "BenchmarkRun",
"spec": {
"status": "passed",
"timing": {
"latencyNs": {
"mean": 2034667
},
"primaryStatistic": "mean"
},
"observedAt": "2026-03-28T14:30:39.071Z",
"correctness": {
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"maximumAbsoluteError": 0.000244140625,
"maximumRelativeError": 19.412446975708008
},
"sourceNative": {
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"metrics": {
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},
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},
"metadata": {
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"title": "flashinfer_wrapper_bcbabf · gqa_paged_decode_h20_kv4_d128_ps64"
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"protocol": {
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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 2026-08-16 · FlashInfer-Bench · Apache-2.0All results for GQA paged decode h20 kv4 d128 ps64 →JSON