A Comparison of ftrace and LTTng for Tracing Baremetal and Virtualized Workloads
summary
Compares two Linux tracing systems—ftrace and LTTng—showing how each collects kernel and user-space events, their capabilities, usage and measured overhead using benchmarks. Demonstrates visualization and analysis tools including trace-cmd, babeltrace2, KernelShark and Trace Compass for large traces. Explains approaches for applying these tracers to bare-metal and virtualized setups, including tracing host and guest activity concurrently.
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