ProfEdge: Efficient Construction of DNN Performance Evaluation Model on Edge Devices

With the rapid development of the Internet of Things (IoT) and artificial intelligence (AI) technologies, edge computing emerges as a crucial computing paradigm. By processing data near the source, edge computing enables faster and more efficient intelligent services. However, edge devices usually limit computational resources, and existing DNN inference latency profiling methods often rely on internal model details or large-scale latency measurements, making them costly and unsuitable for black-box deployment scenarios. This paper proposes ProfEdge, a fast construction framework for deep neural network (DNN) latency profiling models based on Gaussian process regression and Bayesian optimization. ProfEdge adaptively samples real latency measurements under different batch-size states and tunes profiling-model hyperparameters to reduce construction cost while improving profiling accuracy. Specifically, ProfEdge builds an adaptive sampling module based on Gaussian process regression to locate high-error regions through coarse-grained sampling and dynamically refine the sampling process. It further designs a dynamic Bayesian optimization mechanism to improve the accuracy of the latency profiling model. Finally, ProfEdge constructs a cross-device performance mapping model to migrate an existing profiling model to a target device with lightweight stratified calibration, thereby avoiding full reconstruction of the target-device profiling model. Experiments on various edge devices and DNN models, including CNN-based and transformer-based workloads, show that ProfEdge reduces profiling errors by up to 80% and saves over 70% of profiling construction cost compared with existing methods. The cross-device migration results further demonstrate that ProfEdge can achieve competitive profiling accuracy on new devices with only a small number of target-device calibration samples.