find out why nothing from some categories is traced

littlewhywhat / extrace

Extrace

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Open littlewhywhat opened 6 years ago

littlewhywhat commented 6 years ago

atrace with all android options doesn't trace anything (core_service is not even supported #24):

atrace gfx input view webview wm am sm audio video camera hal app res dalvik rs bionic power pm ss database network

littlewhywhat commented 6 years ago

same with some kernel options:

atrace freq idle disk sync memreclaim pagecache

littlewhywhat commented 6 years ago

categories that give output:

atrace sched
atrace irq
atrace workq
atrace binder_lock (not sure)
atrace binder_driver

littlewhywhat commented 6 years ago

Some clues possible in here

frameworks/base/core/jni/android_os_Trace.cpp
system/core/libcutils/trace_dev.c