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RMSNorm · rows = 2048 · hidden = 16384 · bf16 · run 01a016ae-05e3…
●passedReported evidence

Not re-observed recently.

Primary measurement
2.57msmedian

Rank 2 in its comparison group · source-native comparison · observed 2024-09-03

Compare with #1 →

ms 20 2.5663681030273438 · ms 50 2.569632053375244 · ms 80 2.5731201171875

Identity
implementationTransformers
projectHugging Face Transformers
revisionunknown
workloadrows = 2048 · hidden = 16384 · bf16
comparison keysha256:423cdd7c8762e11b…
sourceLiger-Kernel benchmarks
external idrms_norm/backward/huggingface/nvidia-a100-sxm4-80gb/hidden16384-rows2048-bf16/2024-09-03-15-39-46
sha256:21df0b654e59f793c2f8d87…

Correctness

Marked passed by the source; the correctness policy was not published.

Workload

rows2048
hidden16384
xbf16 [2048, 16384]
weightbf16 [16384]
definition comparatornot_asserted

Measurements

latency · median2.57 ms
latency · p202.57 ms
latency · p802.57 ms

Protocol

harnessLiger-Kernel benchmark scripts
timercuda_events
primaryStatisticmedian
comparabilityFamilyliger_kernel_bench

Environment

gpuNVIDIA A100 (sm_80)

Artifacts

No artifacts published with this run.

Replications and notes

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Canonical manifest

Show manifest
{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "median": 2569632
        },
        "primaryStatistic": "median"
      },
      "observedAt": "2024-09-03T15:39:46.000Z",
      "measurements": [
        {
          "unit": "ns",
          "value": 2566368,
          "metric": "latency",
          "statistic": "p20"
        },
        {
          "unit": "ns",
          "value": 2573120,
          "metric": "latency",
          "statistic": "p80"
        }
      ],
      "sourceNative": {
        "source": "liger-kernel-bench",
        "metrics": {
          "ms_20": 2.5663681030273438,
          "ms_50": 2.569632053375244,
          "ms_80": 2.5731201171875
        },
        "benchmark": "rms_norm/backward",
        "externalId": "rms_norm/backward/huggingface/nvidia-a100-sxm4-80gb/hidden16384-rows2048-bf16/2024-09-03-15-39-46"
      },
      "protocolDigest": "sha256:080e6e66e4ec75a131aa0c9121c74b8e8eed64e7b6d621d567c6a28f79548be8",
      "workloadDigest": "sha256:3d726cc1123efb456ad82edf39b87426ebb1b70cc0b642f68e92e526607abee6",
      "environmentDigest": "sha256:90c9e2764222f592477cfccf3373519add5a1b881563956ad058c4f99e41b6b9",
      "implementationDigest": "sha256:d0846f0b6ab4d23bc51fcd7979b189c953df29327453372e7cc66c4809fb8801"
    },
    "metadata": {
      "name": "liger-rms-norm-backward-huggingface-nvidia-a100-sxm4-80gb-hidden16384-rows2048-bf16-2024-09-03-15-39",
      "title": "RMSNorm · huggingface · backward",
      "labels": {
        "liger_version": "0.2.1"
      }
    },
    "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 backward pass of the module output given a random upstream gradient, 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-backward",
      "title": "Liger benchmark harness · backward pass"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
        "vendor": "nvidia",
        "product": "NVIDIA A100",
        "formFactor": "SXM4-80GB",
        "architecture": "sm_80"
      },
      "software": {}
    },
    "metadata": {
      "name": "liger-bench-nvidia-a100-sxm4-80gb",
      "title": "Liger benchmark host · A100-SXM4-80GB"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}
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Published 2026-08-18 · Liger-Kernel benchmarks · BSD-2-ClauseAll results for RMSNorm →JSON