It is so long time when TVM parses Tensorflow MaskRCNN model

I download a TF model from “http://download.tensorflow.org/models/object_detection/mask_rcnn_resnet50_atrous_coco_2018_01_28.tar.gz” and use “relay.frontend.from_tensorflow” to parser it. but the cost time is so long. it uses about one hour! how can I to optimize it?

tks very much!

This is due to some VM memory related passes. There will be some work to improve them.