Tencent / Tencent/ncnn

按照yolov8的ncnn推理,在web上部署运行很慢,如何优化

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Description

detail | 详细描述 | 詳細な説明

使用了ncnn项目中提供的yolov8推理代码,在web上跑推理很慢
ex.input("in0", in_pad);

std::vector<Object> proposals;

// stride 32
{
    ncnn::Mat out;
    ex.extract("out0", out);

这个转化耗时了800ms,如何进一步优化

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First steps

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Research direction

Start by profiling the ncnn YOLOv8 web inference path around ex.extract("out0", out), which the issue reports taking 800 ms. Compare the extraction and surrounding inference steps to identify the bottleneck; done would require a measured improvement and a documented optimization path, but the issue provides no target or test case.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, web-dev
Domain
machine-learning, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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