Merge pull request #277 from activeloopai/feature/benchmark

Feature/benchmark

test/benchmark_new/basic_datasets.py

@@ -0,0 +1,185 @@
+import time
+import io
+import torch
+import hub
+from hub.schema import Tensor
+from hub.store.store import get_fs_and_path
+from helper import report
+import numpy as np
+from PIL import Image
+from pathlib import Path
+import os
+import tensorflow as tf
+
+
+class PytorchDataset(torch.utils.data.Dataset):
+    "Characterizes a dataset for PyTorch"
+
+    def __init__(
+        self,
+        samples,
+        width=256,
+        load_image=True,
+        image_path="results/Parallel150KB.png",
+        fs=None,
+    ):
+        "Initialization"
+        self.samples = samples
+        self.width = width
+        self.load_image = load_image
+        self.image_path = image_path
+        self.fs = fs
+
+    def __len__(self):
+        "Denotes the total number of samples"
+        return self.samples
+
+    def __getitem__(self, index):
+        "Generates one sample of data"
+        if self.load_image:
+            if self.image_path.startswith("s3") and not self.fs:
+                return {}
+
+            with self.fs.open(self.image_path, "rb") as f:
+                img = Image.open(f)
+                inp = img.convert("RGB")
+                inp = np.array(inp)[: self.width, : self.width]
+        else:
+            inp = np.random.rand(self.width, self.width, 3)
+            inp = (255 * inp).astype("uint8")
+        objs = {"input": inp, "label": np.random.rand(1).astype("uint8")}
+
+        objs = {k: torch.tensor(v) for k, v in objs.items()}
+        return objs
+
+    def collate_fn(self, batch):
+        batch = tuple(batch)
+        keys = tuple(batch[0].keys())
+        ans = {key: [item[key] for item in batch] for key in keys}
+
+        for key in keys:
+            ans[key] = torch.stack(ans[key], dim=0, out=None)
+        return ans
+
+
+def get_dataset_from_hub(samples=1, read_from_fs=False, pytorch=False):
+    """
+    Build dataset and transform to pytorch or tensorflow
+    """
+    my_schema = {"img": Tensor(shape=(3, 256, 256)), "label": "uint8"}
+    if not read_from_fs:
+        ds = hub.Dataset("test/benchmarking", shape=(samples,), schema=my_schema)
+    else:
+        ds = hub.Dataset(
+            "s3://snark-test/benchmarking_test", shape=(samples,), schema=my_schema
+        )
+    for i in range(samples):
+        ds["img", i] = np.random.rand(3, 256, 256)
+        ds["label", i] = 0
+
+    ds = ds.to_pytorch() if pytorch else ds.to_tensorflow()
+    return ds
+
+
+def TensorflowDataset(samples=100, load_image=False, image_path="", fs=None):
+    def tf_gen(width=256):
+        "Generates one sample of data"
+        for i in range(samples):
+            if load_image:
+                if image_path.startswith("s3") and not fs:
+                    return {}
+
+                with fs.open(image_path, "rb") as f:
+                    img = Image.open(f)
+                    inp = img.convert("RGB")
+                    inp = np.array(inp)[:width, :width]
+            else:
+                inp = np.random.rand(width, width, 3)
+                inp = (255 * inp).astype("uint8")
+            objs = {"input": inp, "label": np.random.rand(1).astype("uint8")}
+            yield objs
+
+    ds = tf.data.Dataset.from_generator(
+        tf_gen,
+        output_types={
+            "input": tf.dtypes.as_dtype("uint8"),
+            "label": tf.dtypes.as_dtype("uint8"),
+        },
+        output_shapes={"input": [256, 256, 3], "label": [1]},
+    )
+    return ds
+
+
+def dataset_loader(
+    samples=1, read_from_fs=False, img_path="/tmp/test.png", pytorch=True
+):
+    """
+    Returns tensorflow or pytorch dataset
+    """
+    inp = np.random.rand(256, 256, 3)
+    inp = (255 * inp).astype("uint8")
+    img = Image.fromarray(inp)
+    buff = io.BytesIO()
+    img.save(buff, "JPEG")
+    buff.seek(0)
+    fs, path = get_fs_and_path(img_path)
+    with fs.open(img_path, "wb") as f:
+        f.write(buff.read())
+
+    Dataset = PytorchDataset if pytorch else TensorflowDataset
+    ds = Dataset(samples=samples, load_image=read_from_fs, image_path=img_path, fs=fs)
+    return ds
+
+
+def empty_train_hub(samples=100, backend="hub:pytorch", read_from_fs=False):
+    """
+    Looping over empty space
+    """
+    if "hub" in backend:
+        ds = get_dataset_from_hub(
+            samples=samples,
+            read_from_fs=read_from_fs,
+            pytorch="pytorch" in backend,
+        )
+    else:
+        ds = dataset_loader(
+            samples=samples,
+            read_from_fs=read_from_fs,
+            img_path="s3://snark-test/benchmarks/test_img.jpeg",
+            pytorch="pytorch" in backend,
+        )
+
+    if "pytorch" in backend:
+        ds = torch.utils.data.DataLoader(
+            ds,
+            batch_size=8,
+            num_workers=1,
+            collate_fn=ds.collate_fn if "collate_fn" in dir(ds) else None,
+        )
+    else:
+        ds = ds.batch(16)
+
+    t1 = time.time()
+    for batch in ds:
+        pass
+    t2 = time.time()
+
+    print(
+        {
+            "name": f"{backend} loading from {'FS' if read_from_fs else 'Hub'}",
+            "overall": t2 - t1,
+        }
+    )
+
+
+if __name__ == "__main__":
+    n_samples = 256
+    params = [
+        {"samples": n_samples, "backend": "pytorch", "read_from_fs": True},
+        {"samples": n_samples, "backend": "hub:pytorch", "read_from_fs": False},
+        {"samples": n_samples, "backend": "hub:pytorch", "read_from_fs": True},
+        {"samples": n_samples, "backend": "tensorflow", "read_from_fs": True},
+        {"samples": n_samples, "backend": "hub:tensorflow", "read_from_fs": False},
+        {"samples": n_samples, "backend": "hub:tensorflow", "read_from_fs": True},
+    ]
+    logs = [empty_train_hub(**args) for args in params]