How we can identify performance Bottlenecks?

Load Runner provides multiple types of monitors such as Application Server Monitors, Database Monitors, Firewall Monitors, Java Performance Monitors, Network Monitors, and Web Server Monitors which are helpful in identifying the bottlenecks by monitoring the performance of an application and finding out the troubled area which leads to increased response time. Performance response time, hits per second, throughput, network delay graphs, etc all are included in the measurements.