commit 56d89e9c7c8b8825b67b4cf4dddb8e338703aeca
author Surbhi Kadam <surbhikadam@google.com> Fri Sep 06 17:00:13 2024 +0000
committer Surbhi Kadam <surbhikadam@google.com> Mon Sep 16 15:45:33 2024 +0000
tree 61eee783e0e0e56880e55d44db9c90bfd0547206
parent 19c98febcb37da075080a18140f1a286a6f2dec7

Enable tracing in VsyncModulator

Removes the use of "debug.sf.vsync_trace_detailed_info" prop to
enable tracing. Additionally, adds tracing to getNextVsyncConfigType to reason about why a given VsyncConfigType was selected.

Bug: 360338323

Test: manual, perfetto traces

Flag: EXEMPT log only update

Change-Id: Ifa21e301c9ee6874ebe7805d4ca30aeab24bf32d

services/surfaceflinger/Scheduler/VsyncModulator.cpp

diff --git a/services/surfaceflinger/Scheduler/VsyncModulator.cpp b/services/surfaceflinger/Scheduler/VsyncModulator.cpp
index fa377e9..3c5f68c 100644
--- a/services/surfaceflinger/Scheduler/VsyncModulator.cpp
+++ b/services/surfaceflinger/Scheduler/VsyncModulator.cpp
@@ -21,7 +21,6 @@
 
 #include "VsyncModulator.h"
 
-#include <android-base/properties.h>
 #include <common/trace.h>
 #include <log/log.h>
 
@@ -37,8 +36,7 @@
 
 VsyncModulator::VsyncModulator(const VsyncConfigSet& config, Now now)
       : mVsyncConfigSet(config),
-        mNow(now),
-        mTraceDetailedInfo(base::GetBoolProperty("debug.sf.vsync_trace_detailed_info", false)) {}
+        mNow(now) {}
 
 VsyncConfig VsyncModulator::setVsyncConfigSet(const VsyncConfigSet& config) {
     std::lock_guard<std::mutex> lock(mMutex);
@@ -71,10 +69,6 @@
             break;
     }
 
-    if (mTraceDetailedInfo) {
-        SFTRACE_INT("mEarlyWakeup", static_cast<int>(mEarlyWakeupRequests.size()));
-    }
-
     if (mEarlyWakeupRequests.empty() && schedule == Schedule::EarlyEnd) {
         mEarlyTransactionFrames = MIN_EARLY_TRANSACTION_FRAMES;
         mEarlyTransactionStartTime = mNow();
@@ -167,15 +161,19 @@
     const VsyncConfig& offsets = getNextVsyncConfig();
     mVsyncConfig = offsets;
 
-    if (mTraceDetailedInfo) {
-        const bool isEarly = &offsets == &mVsyncConfigSet.early;
-        const bool isEarlyGpu = &offsets == &mVsyncConfigSet.earlyGpu;
-        const bool isLate = &offsets == &mVsyncConfigSet.late;
+    // Trace config type
+    SFTRACE_INT("Vsync-Early",  &mVsyncConfig == &mVsyncConfigSet.early);
+    SFTRACE_INT("Vsync-EarlyGpu", &mVsyncConfig == &mVsyncConfigSet.earlyGpu);
+    SFTRACE_INT("Vsync-Late", &mVsyncConfig == &mVsyncConfigSet.late);
 
-        SFTRACE_INT("Vsync-EarlyOffsetsOn", isEarly);
-        SFTRACE_INT("Vsync-EarlyGpuOffsetsOn", isEarlyGpu);
-        SFTRACE_INT("Vsync-LateOffsetsOn", isLate);
-    }
+    // Trace early vsync conditions
+    SFTRACE_INT("EarlyWakeupRequests",
+                                 static_cast<int>(mEarlyWakeupRequests.size()));
+    SFTRACE_INT("EarlyTransactionFrames", mEarlyTransactionFrames);
+    SFTRACE_INT("RefreshRateChangePending", mRefreshRateChangePending);
+
+    // Trace early gpu conditions
+    SFTRACE_INT("EarlyGpuFrames", mEarlyGpuFrames);
 
     return offsets;
 }
@@ -183,7 +181,6 @@
 void VsyncModulator::binderDied(const wp<IBinder>& who) {
     std::lock_guard<std::mutex> lock(mMutex);
     mEarlyWakeupRequests.erase(who);
-
     static_cast<void>(updateVsyncConfigLocked());
 }