I've made a web-application and want to know how many resources are used for different operations in browser. Could you tell me some software. I want to know it for IE, Chrome and any others - Memory, CPU, graph in time for every browser.
Windows comes with an app called Windows Performance Monitor.
You can set up monitors by process (each browser/tab will have it's own process). So long as the tab is open you can set it up to be monitored. You can track CPU usage, memory, all kinds of stuff. It also has charts to visualize your metrics over time.