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FastDeploy/examples/vision/detection/paddledetection/quantize/README_CN.md
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[English](README.md) | 简体中文
# PaddleDetection 量化模型部署
FastDeploy已支持部署量化模型,并提供一键模型自动化压缩的工具.
用户可以使用一键模型自动化压缩工具,自行对模型量化后部署, 也可以直接下载FastDeploy提供的量化模型进行部署.
## FastDeploy一键模型自动化压缩工具
FastDeploy 提供了一键模型自动化压缩工具, 能够简单地通过输入一个配置文件, 对模型进行量化.
详细教程请见: [一键模型自动化压缩工具](../../../../../tools/common_tools/auto_compression/)
## 下载量化完成的PP-YOLOE-l模型
用户也可以直接下载下表中的量化模型进行部署.(点击模型名字即可下载)
Benchmark表格说明:
- Runtime时延为模型在各种Runtime上的推理时延,包含CPU->GPU数据拷贝,GPU推理,GPU->CPU数据拷贝时间. 不包含模型各自的前后处理时间.
- 端到端时延为模型在实际推理场景中的时延, 包含模型的前后处理.
- 所测时延均为推理1000次后求得的平均值, 单位是毫秒.
- INT8 + FP16 为在推理INT8量化模型的同时, 给Runtime 开启FP16推理选项
- INT8 + FP16 + PM, 为在推理INT8量化模型和开启FP16的同时, 开启使用Pinned Memory的选项,可加速GPU->CPU数据拷贝的速度
- 最大加速比, 为FP32时延除以INT8推理的最快时延,得到最大加速比.
- 策略为量化蒸馏训练时, 采用少量无标签数据集训练得到量化模型, 并在全量验证集上验证精度, INT8精度并不代表最高的INT8精度.
- CPU为Intel(R) Xeon(R) Gold 6271C, 所有测试中固定CPU线程数为1. GPU为Tesla T4, TensorRT版本8.4.15.
#### Runtime Benchmark
| 模型 |推理后端 |部署硬件 | FP32 Runtime时延 | INT8 Runtime时延 | INT8 + FP16 Runtime时延 | INT8+FP16+PM Runtime时延 | 最大加速比 | FP32 mAP | INT8 mAP | 量化方式 |
| ------------------- | -----------------|-----------| -------- |-------- |-------- | --------- |-------- |----- |----- |----- |
| [ppyoloe_crn_l_300e_coco](https://bj.bcebos.com/paddlehub/fastdeploy/ppyoloe_crn_l_300e_coco_qat.tar ) | TensorRT | GPU | 27.90 | 6.39 |6.44|5.95 | 4.67 | 51.4 | 50.7 | 量化蒸馏训练 |
| [ppyoloe_crn_l_300e_coco](https://bj.bcebos.com/paddlehub/fastdeploy/ppyoloe_crn_l_300e_coco_qat.tar ) | Paddle-TensorRT | GPU | 30.89 |None | 13.78 |14.01 | 2.24 | 51.4 | 50.5 | 量化蒸馏训练 |
| [ppyoloe_crn_l_300e_coco](https://bj.bcebos.com/paddlehub/fastdeploy/ppyoloe_crn_l_300e_coco_qat.tar) | ONNX Runtime | CPU | 1057.82 | 449.52 |None|None | 2.35 |51.4 | 50.0 |量化蒸馏训练 |
NOTE:
- TensorRT比Paddle-TensorRT快的原因是在runtime移除了multiclass_nms3算子
#### 端到端 Benchmark
| 模型 |推理后端 |部署硬件 | FP32 End2End时延 | INT8 End2End时延 | INT8 + FP16 End2End时延 | INT8+FP16+PM End2End时延 | 最大加速比 | FP32 mAP | INT8 mAP | 量化方式 |
| ------------------- | -----------------|-----------| -------- |-------- |-------- | --------- |-------- |----- |----- |----- |
| [ppyoloe_crn_l_300e_coco](https://bj.bcebos.com/paddlehub/fastdeploy/ppyoloe_crn_l_300e_coco_qat.tar ) | TensorRT | GPU | 35.75 | 15.42 |20.70|20.85 | 2.32 | 51.4 | 50.7 | 量化蒸馏训练 |
| [ppyoloe_crn_l_300e_coco](https://bj.bcebos.com/paddlehub/fastdeploy/ppyoloe_crn_l_300e_coco_qat.tar ) | Paddle-TensorRT | GPU | 33.48 |None | 18.47 |18.03 | 1.81 | 51.4 | 50.5 | 量化蒸馏训练 |
| [ppyoloe_crn_l_300e_coco](https://bj.bcebos.com/paddlehub/fastdeploy/ppyoloe_crn_l_300e_coco_qat.tar) | ONNX Runtime | CPU | 1067.17 | 461.037 |None|None | 2.31 |51.4 | 50.0 |量化蒸馏训练 |
## 详细部署文档
- [Python部署](python)
- [C++部署](cpp)