Amazon EC2 Auto Scaling introduces Warm Pools to accelerate scale out while saving money

Amazon EC2 Auto Scaling Warm Pools help applications scale out faster and save money by requiring fewer continuously running instances. With Warm Pools, customers can improve the elasticity of their applications by creating a pool of pre-initialized EC2 instances that are ready to quickly serve application traffic. Additionally, Warm Pools offer a way to save compute costs by placing pre-initialized instances in a stopped state.

Source:: Amazon AWS