1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "Diagnostics.h"
8 #include "mozilla/layers/LayersMessages.h"
9 #include "nsPrintfCString.h"
10
11 namespace mozilla {
12 namespace layers {
13
Average() const14 float TimedMetric::Average() const {
15 // We take at most 2 seconds of history.
16 TimeStamp latest = TimeStamp::Now();
17 float total = 0.0f;
18 size_t count = 0;
19 for (auto iter = mHistory.rbegin(); iter != mHistory.rend(); iter++) {
20 if ((latest - iter->second).ToSeconds() > 2.0f) {
21 break;
22 }
23 total += iter->first;
24 count++;
25 }
26
27 if (!count) {
28 return 0.0f;
29 }
30 return total / float(count);
31 }
32
Diagnostics()33 Diagnostics::Diagnostics()
34 : mCompositeFps("Compositor"), mTransactionFps("LayerTransactions") {}
35
RecordPaintTimes(const PaintTiming & aPaintTimes)36 void Diagnostics::RecordPaintTimes(const PaintTiming& aPaintTimes) {
37 mDlbMs.Add(aPaintTimes.dlMs());
38 mDlb2Ms.Add(aPaintTimes.dl2Ms());
39 mFlbMs.Add(aPaintTimes.flbMs());
40 mRasterMs.Add(aPaintTimes.rasterMs());
41 mSerializeMs.Add(aPaintTimes.serializeMs());
42 mSendMs.Add(aPaintTimes.sendMs());
43 }
44
GetFrameOverlayString(const GPUStats & aStats)45 std::string Diagnostics::GetFrameOverlayString(const GPUStats& aStats) {
46 TimeStamp now = TimeStamp::Now();
47 unsigned fps = unsigned(mCompositeFps.AddFrameAndGetFps(now));
48 unsigned txnFps = unsigned(mTransactionFps.GetFPS(now));
49
50 float pixelFillRatio =
51 aStats.mInvalidPixels
52 ? float(aStats.mPixelsFilled) / float(aStats.mInvalidPixels)
53 : 0.0f;
54 float screenFillRatio = aStats.mScreenPixels ? float(aStats.mPixelsFilled) /
55 float(aStats.mScreenPixels)
56 : 0.0f;
57
58 if (aStats.mDrawTime) {
59 mGPUDrawMs.Add(aStats.mDrawTime.value());
60 }
61
62 std::string gpuTimeString;
63 if (mGPUDrawMs.Empty()) {
64 gpuTimeString = "N/A";
65 } else {
66 gpuTimeString = nsPrintfCString("%0.1fms", mGPUDrawMs.Average()).get();
67 }
68
69 // DL = nsDisplayListBuilder, p = partial, f = full
70 // FLB = FrameLayerBuilder
71 // R = ClientLayerManager::EndTransaction
72 // CP = ShadowLayerForwarder::EndTransaction (txn build)
73 // TX = LayerTransactionChild::SendUpdate (IPDL serialize+send)
74 // UP = LayerTransactionParent::RecvUpdate (IPDL deserialize, update, APZ
75 // update)
76 // CC_BUILD = Container prepare/composite frame building
77 // CC_EXEC = Container render/composite drawing
78 nsPrintfCString line1("FPS: %d (TXN: %d)", fps, txnFps);
79 nsPrintfCString line2(
80 "[CC] Build: %0.1fms Exec: %0.1fms GPU: %s Fill Ratio: %0.1f/%0.1f",
81 mPrepareMs.Average(), mCompositeMs.Average(), gpuTimeString.c_str(),
82 pixelFillRatio, screenFillRatio);
83 nsPrintfCString line3(
84 "[Content] DL p: %0.1f DL f: %0.1fms FLB: %0.1fms Raster: %0.1fms",
85 mDlbMs.Average(), mDlb2Ms.Average(), mFlbMs.Average(),
86 mRasterMs.Average());
87 nsPrintfCString line4("[IPDL] Build: %0.1fms Send: %0.1fms Update: %0.1fms",
88 mSerializeMs.Average(), mSendMs.Average(),
89 mUpdateMs.Average());
90
91 return std::string(line1.get()) + "\n" + std::string(line2.get()) + "\n" +
92 std::string(line3.get()) + "\n" + std::string(line4.get());
93 }
94
95 } // namespace layers
96 } // namespace mozilla
97