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Dynamic tracing in Linux user and kernel space - Opensource.com
https://opensource.com/article/17/7/dynamic-tracing-linux-user-and-kernel-space#:~:text=The%20Linux%20kernel%20has%20a%20few%20frameworks%20that,a%20user%20application.%20Tracing%20user%20space%20using%20uprobe
Dynamic tracing in Linux user and kernel space
https://opensource.com/article/17/7/dynamic-tracing-linux-user-and-kernel-space
The Linux kernel has a few frameworks that can help a developer probe either the kernel or user space application without recompiling the source code. Kprobe is one such dynamic method of inserting probe points within kernel code, and uprobe does so within a user application. Tracing user space using uprobe
Dynamic Tracing in Linux User and Kernel Space
https://www.linux.com/news/dynamic-tracing-linux-user-and-kernel-space/
Basically, you need to insert dynamic probe points at different locations of your source code assembly instructions. For advanced users, kernel documentation/trace and man perf provide a lot of information about different types of kernels and user space tracing mechanisms; however, average users just want a few simple steps and an example to get …
Tracing the Linux kernel with ftrace - #embeddedbits
https://embeddedbits.org/tracing-the-linux-kernel-with-ftrace/
commands: record - record a trace into a trace.dat file start - start tracing without recording into a file extract - extract a trace from the kernel stop - stop the kernel from recording trace data restart - restart the kernel trace data recording show - show the contents of the kernel tracing buffer reset - disable all kernel tracing and clear the trace buffers report - read out the trace …
Linux Tracing Technologies — The Linux Kernel …
https://www.kernel.org/doc/html/latest/trace/index.html
Single thread tracing. function graph tracer. dynamic ftrace. Selecting function filters via index. Dynamic ftrace with the function graph tracer. ftrace_enabled. Filter …
Dynamic tracing in Linux user and kernel space | Linux Today
https://www.linuxtoday.com/developer/dynamic-tracing-in-linux-user-and-kernel-space/
Dynamic tracing in Linux user and kernel space By Opensource.com July 6, 2017 Have you ever been in a situation where you realize that you didn’t insert debug print at a few points in your code, so now you won’t know if your CPU hits a particular line of code for execution until you recompile the code with debug statements?
Linux Tracing Technologies — The Linux Kernel …
https://www.kernel.org/doc/html/v4.18/trace/index.html
wakeup. wakeup_rt. Latency tracing and events. Hardware Latency Detector. function. Single thread tracing. function graph tracer. dynamic ftrace. Dynamic ftrace with …
Dynamic Event Tracing in Linux Kernel
https://events.static.linuxfound.org/slides/lfcs2010_hiramatsu.pdf
Dynamic event tracing In-kernel flexible probe framework Events can trace registers/memory Safety checks can check the instruction boundary Perf probe Debuginfo analyzer for helping dynamic event setting from source code info User friendly interface for dynamic event tracing In kernel tree tool Kprobe jump optimization
Event Tracing — The Linux Kernel documentation
https://www.kernel.org/doc/html/latest/trace/events.html
Tracepoints (see Using the Linux Kernel Tracepoints) can be used without creating custom kernel modules to register probe functions using the event tracing infrastructure. Not all tracepoints can be traced using the event tracing system; the kernel developer must provide code snippets which define how the tracing information is saved into the tracing buffer, and how the …
Fun with Dynamic Kernel Tracing Events
https://events19.linuxfoundation.org/wp-content/uploads/2017/12/oss-eu-2018-fun-with-dynamic-trace-events_steven-rostedt.pdf
Fun with Dynamic Kernel Tracing Events The things you just shouldn’t be able to do! Steven Rostedt 10/23/2018 I assume you are familiar with: ftrace …
BCC - Dynamic Tracing Tools for Linux Performance …
https://www.tecmint.com/bcc-best-linux-performance-monitoring-tools/
BCC ( BPF Compiler Collection) is a powerful set of appropriate tools and example files for creating resourceful kernel tracing and manipulation programs. It utilizes extended BPF ( Berkeley Packet Filters ), initially known as eBPF which was one of the new features in Linux 3.15. BCC/BPF – Dynamic Tracing Tools for Linux Performance Monitoring. Practically, most of the …
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