It's well-documented how to use ftrace to find the function graph starting from a certain function, e.g. But this only returns the function graph s ...

The only thing I need to see in the output is which functions were called. Input: The output should look like this: This is what I tried: Ho ...

I work in a system that does not allow me to enable tracepoints at runtime. To work around this, I manually add printks near a trace point to during d ...

I tried to use ftrace to hook kernel functions in arm64 kernel, but failed. Some important parts of my code are as follows: but got an error: sy ...

I have a ASCII trace named trace and I'd like to convert it to a .dat in order to analyze it with kernelshark (I cannot change tool such as TraceCompa ...

I want to use Ftrace event tracer for my kernel module. It is important to me that I'll be able to trace right when the module loads- in similar fash ...

I'm using ftrace to trace ip_local_out() in kernel 5.4.20. I'm sure ip_local_out() is available to trace: So I set up ftrace and start to trace as ...

The function_graph tracer outputs what appears to be a time-dependent tree in a format similar to a C-code and/or JSON. Is there a python3 built-in th ...

I'm using ftrace. There is task/pid field. What is the task? Is it process's thread id? If no, is it possible to get information about threads with sa ...

I used the following command to trace the kernel. but I saw the following result just show the address instead of the function name. May I know ...

I am writing a kernel module to hook to the trace point of softirq_raise. I found it could be shown in My handler is as follows, and what I got ...

I want to measure performance of some kernel functions using Ftrace but I want to measure it selectively for particular value of argument. This is bec ...

Guys. I am trying to study virtual memory management on Nexus 6P(An Old Android Smartphone) Because the default kernel in AOSP didn't turn CONFIG_FU ...

Hardware - Raspberry pi 4 Model B 8GB OS - Raspberry pi OS Buster(10)(2020-05-27-raspios-buster-full-armhf.img)(linux kerenl 4.19.y) I added rpi_get_ ...

I am trying to do an assignment (from another univ's coursepage) which has a line in the starter code (Python with mininet) as os.system("rmmod tcp_p ...

Currently, I'm getting into the topic of kernel tracing with LTTng and Perf. I'm especially interested to trace the different states a process is in. ...

I'm currently doing some experiments, and I need to record all the events that are generated during the execution of normal stress-ng execution cyle l ...

I'm currently working to integrate the ARM64 ftrace patches to enable the full support to "dynamic ftrace with registers". Specifically I'm working on ...

I want to use ftrace to trace a fix process’s wakeup latency. But, ftrace will only record the max latency. And, set_ftrace_pid is useless. Does anyb ...

I wanted to try splice syscall, which trace-cmd uses to zero copy raw files of off ftrace. Here is the partial list of ftrace raw files splice fails ...