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Diffstat (limited to 'simpleperf/doc/android_platform_profiling.md')
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diff --git a/simpleperf/doc/android_platform_profiling.md b/simpleperf/doc/android_platform_profiling.md deleted file mode 100644 index afa1927b..00000000 --- a/simpleperf/doc/android_platform_profiling.md +++ /dev/null @@ -1,36 +0,0 @@ -# Android platform profiling - -Here are some tips for Android platform developers, who build and flash system images on rooted -devices: -1. After running `adb root`, simpleperf can be used to profile any process or system wide. -2. It is recommended to use the latest simpleperf available in AOSP master, if you are not working -on the current master branch. Scripts are in `system/extras/simpleperf/scripts`, binaries are in -`system/extras/simpleperf/scripts/bin/android`. -3. It is recommended to use `app_profiler.py` for recording, and `report_html.py` for reporting. -Below is an example. - -```sh -# Record surfaceflinger process for 10 seconds with dwarf based call graph. More examples are in -# scripts reference in the doc. -$ python app_profiler.py -np surfaceflinger -r "-g --duration 10" - -# Generate html report. -$ python report_html.py -``` - -4. Since Android >= O has symbols for system libraries on device, we don't need to use unstripped -binaries in `$ANDROID_PRODUCT_OUT/symbols` to report call graphs. However, they are needed to add -source code and disassembly (with line numbers) in the report. Below is an example. - -```sh -# Doing recording with app_profiler.py or simpleperf on device, and generates perf.data on host. -$ python app_profiler.py -np surfaceflinger -r "--call-graph fp --duration 10" - -# Collect unstripped binaries from $ANDROID_PRODUCT_OUT/symbols to binary_cache/. -$ python binary_cache_builder.py -lib $ANDROID_PRODUCT_OUT/symbols - -# Report source code and disassembly. Disassembling all binaries is slow, so it's better to add -# --binary_filter option to only disassemble selected binaries. -$ python report_html.py --add_source_code --source_dirs $ANDROID_BUILD_TOP --add_disassembly \ - --binary_filter surfaceflinger.so -``` |