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Commit c0e40bc1 authored by Rachel Lee's avatar Rachel Lee
Browse files

Add perfetto trace for layer vote 

We already collect trace for some of the refresh rate votes from the
LayerInfo. This adds a trace for all the codepaths.

Test: perfetto
Bug: 300152572
Change-Id: Iccbe9cc4e1f18bd18e7123d5149d87c35298a252
parent 7edcf433

services/surfaceflinger/Scheduler/LayerInfo.cpp

+5 −0
Original line number Diff line number Diff line
@@ -292,6 +292,8 @@ LayerInfo::RefreshRateVotes LayerInfo::getRefreshRateVote(const RefreshRateSelec 


    if (mLayerVote.type != LayerHistory::LayerVoteType::Heuristic) {

        if (mLayerVote.category != FrameRateCategory::Default) {

            ATRACE_FORMAT_INSTANT("ExplicitCategory (%s)",

                                  ftl::enum_string(mLayerVote.category).c_str());

            ALOGV("%s uses frame rate category: %d", mName.c_str(),

                  static_cast<int>(mLayerVote.category));

            votes.push_back({LayerHistory::LayerVoteType::ExplicitCategory, Fps(),
@@ -300,6 +302,7 @@ LayerInfo::RefreshRateVotes LayerInfo::getRefreshRateVote(const RefreshRateSelec 


        if (mLayerVote.fps.isValid() ||

            mLayerVote.type != LayerHistory::LayerVoteType::ExplicitDefault) {

            ATRACE_FORMAT_INSTANT("Vote %s", ftl::enum_string(mLayerVote.type).c_str());

            ALOGV("%s voted %d ", mName.c_str(), static_cast<int>(mLayerVote.type));

            votes.push_back(mLayerVote);

        }
@@ -341,11 +344,13 @@ LayerInfo::RefreshRateVotes LayerInfo::getRefreshRateVote(const RefreshRateSelec 


    auto refreshRate = calculateRefreshRateIfPossible(selector, now);

    if (refreshRate.has_value()) {

        ATRACE_FORMAT_INSTANT("calculated (%s)", to_string(*refreshRate).c_str());

        ALOGV("%s calculated refresh rate: %s", mName.c_str(), to_string(*refreshRate).c_str());

        votes.push_back({LayerHistory::LayerVoteType::Heuristic, refreshRate.value()});

        return votes;

    }



    ATRACE_FORMAT_INSTANT("Max (can't resolve refresh rate)");

    ALOGV("%s Max (can't resolve refresh rate)", mName.c_str());

    votes.push_back({LayerHistory::LayerVoteType::Max, Fps()});

    return votes;