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Learn practical methodologies for effectively monitoring kernel networking systems in production environments through this 18-minute conference talk from the Linux Plumbers Conference. Explore how to move beyond inefficient practices of blindly monitoring all kernel counters and functions, which leads to performance degradation, ineffective metrics, and excessive data storage costs. Discover strategies for identifying truly impactful key metrics and building robust methodologies around them to present information in user-friendly ways for system administrators. Examine the ultimate goals of monitoring and observations, different types of tracing tools available, and the distinctions between testbed and production environments. Understand how to define effective metrics and address drop and stall issues in kernel networking. Master techniques for enumerating real issues from syscall to driver level and implementing daily networking monitoring with minimal performance impact in production systems.
