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https://www.kernel.org/doc/html/latest/dev-tools/gcov.html
Using gcov with the Linux kernel¶. gcov profiling kernel support enables the use of GCC’s coverage testing tool gcov with the Linux kernel. Coverage data of a running kernel is exported in gcov-compatible format via the “gcov” debugfs directory.
https://homepages.cwi.nl/~aeb/linux/profile.html
2.10 Profiling the kernel. There are several facilities to see where the kernel spends its resources. A simple one is the profiling function, that stores the current EIP (instruction pointer) at each clock tick. Boot the kernel with command line option profile=2 (or some other number instead of 2).
https://www.phoronix.com/scan.php?page=news_item&px=Sysprof-3.34-RAPL-Reporting
Aug 01, 2019 · Sysprof Picks Up Profiling Support For CPU Power Consumption. ... Linux 5.4 vs. Liquorix Kernel Benchmarks For AMD Ryzen + Radeon Gaming On Ubuntu. Support Phoronix. The mission at Phoronix since 2004 has centered around enriching the Linux hardware experience.
https://stackoverflow.com/questions/5763219/profiling-linux-kernel-modules
I am interested in profiling a module for the Linux Kernel. I tried it this way: Built the kernel with CONFIG_PROFILING=y Booted the kernel with profile=2 Reset the profiler by echo 123 > /proc/
https://alex.dzyoba.com/blog/kernel-profiling/
Linux kernel profiling features May 12, 2014 Intro. ... And in addition to that perf included tracepoint support via ftrace. To access perf_events there is a special syscall perf_event_open. You are passing the type of event (hardware, kernel, tracepoint) and so-called config, where you specify what exactly you want depending on type. ...
https://www.linux.org/threads/the-linux-kernel-configuring-the-kernel-part-3.8828/
Apr 30, 2019 · Next, we are asked about gcov-based kernel profiling (Enable gcov-based kernel profiling (GCOV_KERNEL)). This can be disabled. To allow the kernel to load modules, enable loadable module support (Enable loadable module support (MODULES)). The Linux kernel will only load modules with version numbers.
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