class_docstr: TODO: test missing for:
  
  - ViTLayerBetterTransformer
  - ViltLayerBetterTransformer
  - Wav2Vec2EncoderLayerBetterTransformer
  - FSMTEncoderLayerBetterTransformer
  - CLIPLayerBetterTransformer
class_docstr_tok: ["TODO",":","test","missing","for",":","-","ViTLayerBetterTransformer","-","ViltLayerBetterTransformer","-","Wav2Vec2EncoderLayerBetterTransformer","-","FSMTEncoderLayerBetterTransformer","-","CLIPLayerBetterTransformer"]
docstr: Test to validate the BetterTransformer base speedup on GPU.
  
  The speedup check is low because we still hit https://github.com/pytorch/pytorch/issues/91305
docstr_tok: ["Test","to","validate","the","BetterTransformer","base","speedup","on","GPU",".","The","speedup","check","is","low","because","we","still","hit","https",":","\/\/github.com\/pytorch\/pytorch\/issues\/91305"]
code: def test_base_speedup(
      self,
      test_name: str,
      model_name: str,
      batch_size: int,
      sequence_length: int,
      use_half: bool,
  ):
      """
      Test to validate the BetterTransformer base speedup on GPU.
  
      The speedup check is low because we still hit https://github.com/pytorch/pytorch/issues/91305
      """
      num_batches = 50
  
      total_bt_time, total_hf_time = benchmark(
          model_name,
          num_batches,
          batch_size,
          sequence_length,
          use_half,
      )
  
      speedup = total_hf_time / total_bt_time
  
      self.assertTrue(
          speedup > 0.85,
          msg=f"The BetterTransformer base speedup for {test_name} is {speedup}",
      )
  
      if speedup >= 0.85 and speedup < 1:
          logger.warning(
              f"The BetterTransformer base speedup for {test_name} is {speedup}"
          )
      if speedup >= 1:
          logger.info(
              f"The BetterTransformer base speedup for {test_name} is {speedup}"
          )
  
file_path: optimum/tests/bettertransformer/test_gpu.py
imports: import os
  import unittest
  import torch
  from parameterized import parameterized
  from transformers import AutoModel
  from optimum.bettertransformer import BetterTransformer
  from optimum.utils import logging
  from optimum.utils.testing_utils import grid_parameters
label_desc: Use image node_id 1 for calling the TestSpeedup obj's underlying member method code with example usage: obj.test_base_speedup(test_name, model_name, batch_size, sequence_length, use_half) without return types