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Liger

SwiGLU activation, Megatron layout · ffn = 1024 · seq = 2048 · batch = 4 · bf16 · run 01a0202b-241a…
●passedReported evidence
Primary measurement
107.1µsmedian

Rank 2 in its comparison group · source-native comparison · observed 2026-07-26

Compare with #1 →

ms 20 0.09860479831695557 · ms 50 0.10713600367307663 · ms 80 0.11654400080442429

Identity
implementationLiger
projectLiger-Kernel
revisionunknown
workloadffn = 1024 · seq = 2048 · batch = 4 · bf16
comparison keysha256:e47726748c9c04c5…
sourceLiger-Kernel benchmarks
external idmegatron_swiglu/backward/liger/nvidia-h100-80gb-hbm3/batch4-ffn1024-seq2048-bf16/2026-07-26-00-09-50
sha256:ad6edf5685a673e0ee90cd1…

Correctness

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

Workload

ffn1024
seq2048
batch4
ybf16 [2048, 4, 2048]
definition comparatornot_asserted

Measurements

latency · median107.1 µs
latency · p2098.6 µs
latency · p80116.5 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

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Canonical manifest

Show manifest
{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "median": 107136
        },
        "primaryStatistic": "median"
      },
      "observedAt": "2026-07-26T00:09:50.000Z",
      "measurements": [
        {
          "unit": "ns",
          "value": 98605,
          "metric": "latency",
          "statistic": "p20"
        },
        {
          "unit": "ns",
          "value": 116544,
          "metric": "latency",
          "statistic": "p80"
        }
      ],
      "sourceNative": {
        "source": "liger-kernel-bench",
        "metrics": {
          "ms_20": 0.09860479831695557,
          "ms_50": 0.10713600367307663,
          "ms_80": 0.11654400080442429
        },
        "benchmark": "megatron_swiglu/backward",
        "externalId": "megatron_swiglu/backward/liger/nvidia-h100-80gb-hbm3/batch4-ffn1024-seq2048-bf16/2026-07-26-00-09-50"
      },
      "protocolDigest": "sha256:080e6e66e4ec75a131aa0c9121c74b8e8eed64e7b6d621d567c6a28f79548be8",
      "workloadDigest": "sha256:02cf058a75da69d6dbc7374db720e332e5a14ddf2c61b6a475f45e48cd10d360",
      "environmentDigest": "sha256:2750ae381d6de582f1eb6b9008e0987463d19ede8af127d97d76c5ae09121393",
      "implementationDigest": "sha256:bae80a370426e1426519098b8cacca7f871cca1cef793e2705a524b4ac025ba5"
    },
    "metadata": {
      "name": "liger-megatron-swiglu-backward-liger-nvidia-h100-80gb-hbm3-batch4-ffn1024-seq2048-bf16-2026-07-26-00",
      "title": "SwiGLU activation, Megatron layout · liger · backward",
      "labels": {
        "liger_version": "0.8.1"
      }
    },
    "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 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"
  }
}
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