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Introduction to kernel tracing using trace-cmd - devkernel. io It can be necessary to determine which ftrace features are supported by the current kernel The following kernel options should be enabled: Additional kernel configuration options can be enabled as needed The configuration files for the ftrace framework are located in sys kernel tracing
ftrace - Function Tracer — The Linux Kernel documentation Ftrace is an internal tracer designed to help out developers and designers of systems to find what is going on inside the kernel It can be used for debugging or analyzing latencies and performance issues that take place outside of user-space
Instrumenting the Linux kernel with ftrace - Perfetto Tracing Docs Part 1: You will learn how to add a custom ftrace event to a kernel module, record a trace containing this event, and view the raw event data in the Perfetto UI Part 2: For advanced users, this part covers how to add first-class support for your custom event to Perfetto itself
The Linux kernel ftrace | ilManzos blog One of the many features that Linux kernel offers since 2008 (then evolved) is ftrace that allows many different kind of tracing at runtime While not as flexible as eBPF technology, it can be helpful in some occasion and doesn’t require a full fledged programming language
Tracing kernel using ftrace - Fudongs Blog Ftrace is a tracing utility built directly into the Linux kernel The interface for Ftrace resides in the debugfs file system in the tracing directory Official Documentation can be found in the Linux kernel source tree at Documentation trace ftrace txt Note, the following options: