A lot of users access our mobile app at the same time (especially when we push notification to all users). It causes high cpu on our servers (2 AWS EC2 instances). I need to figure out which line of code causing this. After taking profiling Node.js application, I found out that object-hash takes more 65% cpu.
Macbook Pro Mid-2015 2,2 GHz Quad-Core Intel Core i7, 16 GB 1600 MHz DDR3
