Liger fused
Fused add + RMSNorm · rows = 2048 · hidden = 1024 · fp32 · run 01a016af-0925…
●passedReported evidence
Primary measurement
20.5µsmedian
Rank 1 in its comparison group · source-native comparison · observed 2026-04-07
ms 20 0.018534399569034576 · ms 50 0.020527999848127365 · ms 80 0.029209600761532784
Identity
implementationLiger fused
projectLiger-Kernel
revisionunknown
workloadrows = 2048 · hidden = 1024 · fp32
comparison keysha256:6845dee5843445a2…
sourceLiger-Kernel benchmarks
external idfused_add_rms_norm/forward/liger_fused_add_rms_norm/nvidia-h100-80gb-hbm3/hidden1024-rows2048-fp32/2026-04-07-21-27-20
sha256:83c798e0568afb0901ad3a4…
Correctness
Marked passed by the source; the correctness policy was not published.
Workload
rows2048
hidden1024
xfp32 [2048, 1024]
weightfp32 [1024]
residualfp32 [2048, 1024]
definition comparatornot_asserted
Measurements
latency · median20.5 µs
latency · p2018.5 µs
latency · p8029.2 µs
Protocol
harnessLiger-Kernel benchmark scripts
timercuda_events
primaryStatisticmedian
comparabilityFamilyliger_kernel_bench
Environment
gpuNVIDIA H100 (sm_90)
Artifacts
No artifacts published with this run.
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
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{
"run": {
"kind": "BenchmarkRun",
"spec": {
"status": "passed",
"timing": {
"latencyNs": {
"median": 20528
},
"primaryStatistic": "median"
},
"observedAt": "2026-04-07T21:27:20.000Z",
"measurements": [
{
"unit": "ns",
"value": 18534,
"metric": "latency",
"statistic": "p20"
},
{
"unit": "ns",
"value": 29210,
"metric": "latency",
"statistic": "p80"
}
],
"sourceNative": {
"source": "liger-kernel-bench",
"metrics": {
"ms_20": 0.018534399569034576,
"ms_50": 0.020527999848127365,
"ms_80": 0.029209600761532784
},
"benchmark": "fused_add_rms_norm/forward",
"externalId": "fused_add_rms_norm/forward/liger_fused_add_rms_norm/nvidia-h100-80gb-hbm3/hidden1024-rows2048-fp32/2026-04-07-21-27-20"
},
"protocolDigest": "sha256:a79eaf4df66c97c6adc1fb2d09df78682155d1ea86652ae0b70199875bde7747",
"workloadDigest": "sha256:17d58604971b8f043560cac520c2de4c8003a0c771587ec03750ce75167a7ed6",
"environmentDigest": "sha256:2750ae381d6de582f1eb6b9008e0987463d19ede8af127d97d76c5ae09121393",
"implementationDigest": "sha256:9b417b271806017a7e78c087a31c17a4633f00e5df9c8b3c227d337c5aea8505"
},
"metadata": {
"name": "liger-fused-add-rms-norm-forward-liger-fused-add-rms-norm-nvidia-h100-80gb-hbm3-hidden1024-rows2048-",
"title": "Fused add + RMSNorm · liger_fused_add_rms_norm · forward",
"labels": {
"liger_version": "0.7.0"
}
},
"apiVersion": "kernelindex.dev/v1alpha1"
},
"protocol": {
"kind": "BenchmarkProtocol",
"spec": {
"harness": {
"name": "Liger-Kernel benchmark scripts",
"repository": "https://github.com/linkedin/Liger-Kernel"
},
"measurement": {
"timer": "cuda_events",
"primaryStatistic": "median"
},
"comparability": {
"notes": "Timed: the module forward pass, via triton.testing.do_bench with quantiles 0.5/0.2/0.8 (median with p20/p80 spread). The upstream CSV records no CUDA, driver, or torch version; the Liger release rides each run's labels. Comparable only within one kernel, workload, timed pass, and GPU.",
"family": "liger_kernel_bench"
}
},
"metadata": {
"name": "liger-bench-do-bench-forward",
"title": "Liger benchmark harness · forward pass"
},
"apiVersion": "kernelindex.dev/v1alpha1"
},
"environment": {
"kind": "ExecutionEnvironment",
"spec": {
"hardware": {
"vendor": "nvidia",
"product": "NVIDIA H100",
"formFactor": "80GB HBM3",
"architecture": "sm_90"
},
"software": {}
},
"metadata": {
"name": "liger-bench-nvidia-h100-80gb-hbm3",
"title": "Liger benchmark host · H100 80GB HBM3"
},
"apiVersion": "kernelindex.dev/v1alpha1"
}
}Cite this record (permalink, digest, access date)
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Published 2026-08-18 · Liger-Kernel benchmarks · BSD-2-ClauseAll results for Fused add + RMSNorm →JSON