Add per-buffer perfetto trace points for SurfaceFlinger frame events
In order to track how buffers move through the system, we add per-buffer perfetto trace points for SurfaceFlinger.
The majority of these were already tracked through TimeStats, so the new tracing was built on top of TimeStats.
Test: atest libsurfaceflinger_unittest
Run trace with:
{ adb shell perfetto -c - --txt -o /data/misc/perfetto-traces/trace <<EOF
buffers: {
size_kb: 1280
}
data_sources: {
config {
name: "android.surfaceflinger.timestats"
}
}
duration_ms: 3000
EOF
} && adb pull /data/misc/perfetto-traces/trace ~/Desktop/trace
Change-Id: Ifb38c64a9966fece735f0ad72438c7c9c5e07baa
diff --git a/services/surfaceflinger/TimeStats/Android.bp b/services/surfaceflinger/TimeStats/Android.bp
new file mode 100644
index 0000000..9e1d503
--- /dev/null
+++ b/services/surfaceflinger/TimeStats/Android.bp
@@ -0,0 +1,15 @@
+cc_library_static {
+ name: "libtimestats",
+ defaults: ["surfaceflinger_defaults"],
+ srcs: [
+ "TimeStats.cpp"
+ ],
+ export_include_dirs: ["."],
+ static_libs: [
+ "libperfetto_client_experimental",
+ ],
+ shared_libs: [
+ "libtimestats_proto",
+ "libui",
+ ],
+}