GpuMem perfetto producer
To overcome the problem of ftrace gpumem events not emitting anything
during MEC (with apps that do launch-time allocations), this change adds
a perfetto producer to emit initial counter values at the start of a
trace, so that the visualization won't so zero usage.
Test: adb shell perfetto --query | grep gpu.
Test: Take a perfetto trace with android.gpumem enabled
Bug: 157142645
Change-Id: I5c8278754549399ffa51e6e6fc2ca69b51976cb2
diff --git a/services/gpuservice/GpuService.cpp b/services/gpuservice/GpuService.cpp
index c36e4b9..18c819f 100644
--- a/services/gpuservice/GpuService.cpp
+++ b/services/gpuservice/GpuService.cpp
@@ -27,6 +27,7 @@
#include <gpumem/GpuMem.h>
#include <gpustats/GpuStats.h>
#include <private/android_filesystem_config.h>
+#include <tracing/GpuMemTracer.h>
#include <utils/String8.h>
#include <utils/Trace.h>
#include <vkjson.h>
@@ -48,8 +49,13 @@
const char* const GpuService::SERVICE_NAME = "gpu";
GpuService::GpuService()
- : mGpuMem(std::make_unique<GpuMem>()), mGpuStats(std::make_unique<GpuStats>()) {
- std::thread asyncInitThread([this]() { mGpuMem->initialize(); });
+ : mGpuMem(std::make_shared<GpuMem>()),
+ mGpuStats(std::make_unique<GpuStats>()),
+ mGpuMemTracer(std::make_unique<GpuMemTracer>()) {
+ std::thread asyncInitThread([this]() {
+ mGpuMem->initialize();
+ mGpuMemTracer->initialize(mGpuMem);
+ });
asyncInitThread.detach();
};