更新:增加在英伟达TX2平台的测试速度,TX2平台平均耗时42ms,相较于RTX2080Ti速度慢了7倍(42ms/6ms)。
此次实验是为了探究YoloV5在RTX2080Ti平台上使用TensorRT对于模型推理的加速效果,同时也比对一下RTX2080Ti平台上GPU对于i7-8700 CPU的加速。
照例先提出来实验硬件环境:
实验参考代码如下:
PyTorch模型训练与推理代码:
https://github.com/ultralytics/yolov5
TensorRT7模型转换与推理代码:
https://github.com/wang-xinyu/tensorrtx/tree/master/yolov5
输入尺寸:576x960
CUDA_VISIBLE_DEVICES=-1 python detect.py --weights runs/hm960_945/weights/best.pt --img 960 --conf 0.15 --source data/hels/testimgs/
输出平均耗时:420ms ;GPU占用:0MB
image 1/8 /home/song/code/yolov5/data/hels/testimgs/lADPD26eMep_iEjNBDjNB4A_1920_1080.jpg: 576x960 1 hs, Done. (0.511s)
image 2/8 /home/song/code/yolov5/data/hels/testimgs/lADPD26eMep_iEnNBDjNB4A_1920_1080.jpg: 576x960 1 ns, 1 hs, Done. (0.481s)
image 3/8 /home/song/code/yolov5/data/hels/testimgs/lADPD2eDNKD3Ng7NBDjNB4A_1920_1080.jpg: 576x960 2 ns, 2 hs, Done. (0.416s)
image 4/8 /home/song/code/yolov5/data/hels/testimgs/lADPD2sQs0W5CEfNBDjNB4A_1920_1080.jpg: 576x960 2 ns, Done. (0.422s)
image 5/8 /home/song/code/yolov5/data/hels/testimgs/lADPD3lGrdjbTqnNBDjNB4A_1920_1080.jpg: 576x960 1 hs, Done. (0.441s)
image 6/8 /home/song/code/yolov5/data/hels/testimgs/lADPD3zULH2hzqjNBDjNB4A_1920_1080.jpg: 576x960 1 ns, 2 hs, Done. (0.963s)
image 7/8 /home/song/code/yolov5/data/hels/testimgs/lADPD4PvKccrNg_NBDjNB4A_1920_1080.jpg: 576x960 1 ns, Done. (0.448s)
image 8/8 /home/song/code/yolov5/data/hels/testimgs/lADPD4d8qGv1TqvNBDjNB4A_1920_1080.jpg: 576x960 2 ns, 3 hs, Done. (0.417s)
输入尺寸:576x960
CUDA_VISIBLE_DEVICES=0 python detect.py --weights runs/hm960_945/weights/best.pt --img 960 --conf 0.15 --source data/hels/testimgs/
输出平均耗时:12ms GPU占用:1000MB
image 1/8 /home/song/code/yolov5/data/hels/testimgs/lADPD26eMep_iEjNBDjNB4A_1920_1080.jpg: 576x960 1 hs, Done. (0.012s)
image 2/8 /home/song/code/yolov5/data/hels/testimgs/lADPD26eMep_iEnNBDjNB4A_1920_1080.jpg: 576x960 1 ns, 1 hs, Done. (0.014s)
image 3/8 /home/song/code/yolov5/data/hels/testimgs/lADPD2eDNKD3Ng7NBDjNB4A_1920_1080.jpg: 576x960 2 ns, 2 hs, Done. (0.015s)
image 4/8 /home/song/code/yolov5/data/hels/testimgs/lADPD2sQs0W5CEfNBDjNB4A_1920_1080.jpg: 576x960 2 ns, Done. (0.011s)
image 5/8 /home/song/code/yolov5/data/hels/testimgs/lADPD3lGrdjbTqnNBDjNB4A_1920_1080.jpg: 576x960 1 hs, Done. (0.011s)
image 6/8 /home/song/code/yolov5/data/hels/testimgs/lADPD3zULH2hzqjNBDjNB4A_1920_1080.jpg: 576x960 1 ns, 2 hs, Done. (0.012s)
image 7/8 /home/song/code/yolov5/data/hels/testimgs/lADPD4PvKccrNg_NBDjNB4A_1920_1080.jpg: 576x960 1 ns, Done. (0.014s)
image 8/8 /home/song/code/yolov5/data/hels/testimgs/lADPD4d8qGv1TqvNBDjNB4A_1920_1080.jpg: 576x960 2 ns, 3 hs, Done. (0.011s)
输入尺寸:576x960
./yolov5m -d ../testimgs/
输出平均耗时:6ms GPU占用:700MB
503ms
6ms
6ms
5ms
6ms
6ms
6ms
5ms
通过这个对比实验可以发现:
1.RTX2080Ti相较于i7-8700 CPU速度提升非常明显(420ms-->12ms),速度提升了35倍
2.TensorRT7相较于PyTorch在相同环境下也有不错的速度提升(12ms-->6ms),速度提升了1倍的同时,GPU显存占用(1000MB-->700MB)也降低了30%。也能保证推理的精度基本不变(1%的波动,在可接受范围)。
实验参考开源:
YoloV5:https://github.com/ultralytics/yolov5
TensorRTX:https://github.com/wang-xinyu/tensorrtx