The blog post discusses optimizing GPU usage during deep learning model training, highlighting the importance of maximizing GPU efficiency due to their high cost and significant role in accelerating the training process. It emphasizes the value of monitoring GPU metrics such as utilization, memory usage, and power consumption to identify bottlenecks and improve performance. Key optimization strategies include mixed-precision training, optimizing data transfer and processing, and balancing workloads between CPU and GPU. The post also explores the impact of factors like batch size, framework selection, and data pipeline design on GPU utilization. It underscores the role of tools like Neptune in tracking and analyzing these metrics to streamline the experimentation process and enhance resource management. A case study on Brainly demonstrates practical applications of these strategies, showcasing how optimizing data pipelines and preprocessing tasks improved GPU utilization during training.