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5dafb72370
This patch merges the profiling functionality in the kernel with the performance events mechanism. A profiler sample is now just another perf event, rather than a dedicated thing. Since perf events were already per-process, this now makes profiling per-process as well. Processes with perf events would already write out a perfcore.PID file to the current directory on death, but since we may want to profile a process and then let it continue running, recorded perf events can now be accessed at any time via /proc/PID/perf_events. This patch also adds information about process memory regions to the perfcore JSON format. This removes the need to supply a core dump to the Profiler app for symbolication, and so the "profiler coredump" mechanism is removed entirely. There's still a hard limit of 4MB worth of perf events per process, so this is by no means a perfect final design, but it's a nice step forward for both simplicity and stability. Fixes #4848 Fixes #4849 |
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| .. | ||
| CMakeLists.txt | ||
| DisassemblyModel.cpp | ||
| DisassemblyModel.h | ||
| main.cpp | ||
| Profile.cpp | ||
| Profile.h | ||
| ProfileModel.cpp | ||
| ProfileModel.h | ||
| ProfileTimelineWidget.cpp | ||
| ProfileTimelineWidget.h | ||