I couldn't clear second round. It was said if i clear this then they will send my profile to hiring manager. So i think the pattern is 2 technical and 1 management or hr round. First technical round had questions like challenges faced scripting, identifying bottlenecks, etc and looks like they were keen about Jmeter distributed testing. Also commamd line performance monitoring question was asked. Second round was entirely focused on command line performance monitoring and performance engineering concepts like full gc, thread state analysis.