X-ray: Automating Root-Cause Diagnosis of Performance Anomalies in Production Software
Numerous studies have reported that configuration and similar human errors are the largest source of errors in deployed systems [10, 11, 24, 25, 30, 32, 34, 58],
profilers - what, root cause - why
What
X-ray currently supports four metrics: execution latency, CPU utilization, file system usage, and network use ( user can choose one to analysis)