Add prefetch_factor #4895
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Add prefetch_factor #4895
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感谢你贡献飞桨文档，文档预览构建中，Docs-New 跑完后即可预览，预览链接：http://preview-pr-4895.paddle-docs-preview.paddlepaddle.org.cn/documentation/docs/zh/api/index_cn.html |
Ligoml
reviewed
May 31, 2022
docs/api/paddle/io/DataLoader_cn.rst
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| - **collate_fn** (callable, optional) - 通过此参数指定如果将样本列表组合为mini-batch数据，当 ``collate_fn`` 为None时，默认为将样本个字段在第0维上堆叠(同 ``np.stack(..., axis=0)`` )为mini-batch的数据。默认值为None。 | ||
| - **num_workers** (int, optional) - 用于加载数据的子进程个数，若为0即为不开启子进程，在主进程中进行数据加载。默认值为0。 | ||
| - **use_buffer_reader** (bool, optional) - 是否使用缓存读取器 。若 ``use_buffer_reader`` 为True，DataLoader会异步地预读取一定数量（默认读取下一个）的 mini-batch 的数据，可加速数据读取过程，但同时会占用少量的CPU/GPU存储，即一个batch输入数据的存储空间。默认值为True。 | ||
| - **prefetch_factor** (int, optional) - 缓存的mini-batch的个数。若 ``use_buffer_reader`` 为True，DataLoader会异步地预读取 ``prefetch_factor`` 个mini-batch。 |
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应该是：- **prefetch_factor** (int，可选)
- 注意标点符号使用中文
， - 注意optional需要翻译为
可选
另外，如果该参数有默认值的话需要在参数描述中说明
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在 Dataloader 的 API 中增加了 prefetch_factor 这个变量。