Lightweight High Resolution Monitoring for Troubleshooting Production Systems Abhishek Kumar Google Sapan Bhatia Princeton University Abstract Production systems are commonly plagued by intermit tent problems that are difficult to diagnose This paper describes a new diagnostic tool called Chopstix that con tinuously collects profiles of low level OS events e g scheduling L2 cache misses CPU utilization I O op erations page allocation locking at the granul
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