Le 23/08/2018 à 16:28, Anders Magnusson a écrit :
Den 2018-08-23 kl. 15:53, skrev Maxime Villard:Le 17/08/2018 à 17:42, Kamil Rytarowski a écrit :On 17.08.2018 17:13, Maxime Villard wrote:Note that I'm talking about the kernel gprof, and not the userland gprof. In terms of kernel profiling, it's not nonsensical to say that since we support ARM and x86 in tprof, we can cover 99% of the MI parts of whatever architecture. From then on, being able to profile the kernel on other architectures has very little interest.Speaking realistically, probably all the recent software-based kernel profiling was done with DTrace.Yes. So I will proceed. Note that the removal of the kernel gprof implies the removal of kgmon.Just checking: How will it work for ports like vax? When searching for bottlenecks I normally use gprof/kgmon. I don't know anything about DTrace, hence the question.
It looks like there will be no replacement. Are you sure this is really kgmon? Because as far as I can tell, in many architectures GPROF is just dead code that either doesn't compile or doesn't have effect (missing opt_gprof.h, but I did add it in February of this year in the MI parts, so it was likely even more broken before).