显存优化
算子融合
图优化
算子替换
src
core
kernel
layer
model
utils
parser
optimizer
builder
test
cpp
trt
onnx
- qps
- flops
- memory
https://github.com/Tencent/ncnn/blob/master/tools/ncnnoptimize.cpp#L53-L88