diff --git a/webrtc/modules/audio_coding/main/source/audio_coding_module_impl.cc b/webrtc/modules/audio_coding/main/source/audio_coding_module_impl.cc
index 8f16bf3af5..54cc6273e2 100644
--- a/webrtc/modules/audio_coding/main/source/audio_coding_module_impl.cc
+++ b/webrtc/modules/audio_coding/main/source/audio_coding_module_impl.cc
@@ -1304,6 +1304,10 @@ int32_t AudioCodingModuleImpl::RegisterIncomingMessagesCallback(
 // Add 10MS of raw (PCM) audio data to the encoder.
 int32_t AudioCodingModuleImpl::Add10MsData(
     const AudioFrame& audio_frame) {
+  TRACE_EVENT2("webrtc", "ACM::Add10MsData",
+               "timestamp", audio_frame.timestamp_,
+               "samples_per_channel", audio_frame.samples_per_channel_);
+
   if (audio_frame.samples_per_channel_ <= 0) {
     assert(false);
     WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, id_,
@@ -2232,11 +2236,14 @@ AudioPlayoutMode AudioCodingModuleImpl::PlayoutMode() const {
 // Automatic resample to the requested frequency.
 int32_t AudioCodingModuleImpl::PlayoutData10Ms(
     int32_t desired_freq_hz, AudioFrame* audio_frame) {
-  TRACE_EVENT0("webrtc_voe", "ACM::PlayoutData10Ms");
+  TRACE_EVENT_ASYNC_BEGIN0("webrtc", "ACM::PlayoutData10Ms", 0);
   bool stereo_mode;
 
-  if (GetSilence(desired_freq_hz, audio_frame))
+  if (GetSilence(desired_freq_hz, audio_frame)) {
+     TRACE_EVENT_ASYNC_END1("webrtc", "ACM::PlayoutData10Ms", 0,
+                            "silence", true);
      return 0;  // Silence is generated, return.
+  }
 
   // RecOut always returns 10 ms.
   if (neteq_.RecOut(audio_frame_) != 0) {
@@ -2264,6 +2271,8 @@ int32_t AudioCodingModuleImpl::PlayoutData10Ms(
     CriticalSectionScoped lock(acm_crit_sect_);
 
     if ((receive_freq != desired_freq_hz) && (desired_freq_hz != -1)) {
+      TRACE_EVENT_ASYNC_END2("webrtc", "ACM::PlayoutData10Ms", 0,
+                             "stereo", stereo_mode, "resample", true);
       // Resample payload_data.
       int16_t temp_len = output_resampler_.Resample10Msec(
           audio_frame_.data_, receive_freq, audio_frame->data_,
@@ -2280,6 +2289,8 @@ int32_t AudioCodingModuleImpl::PlayoutData10Ms(
       // Set the sampling frequency.
       audio_frame->sample_rate_hz_ = desired_freq_hz;
     } else {
+      TRACE_EVENT_ASYNC_END2("webrtc", "ACM::PlayoutData10Ms", 0,
+                             "stereo", stereo_mode, "resample", false);
       memcpy(audio_frame->data_, audio_frame_.data_,
              audio_frame_.samples_per_channel_ * audio_frame->num_channels_
              * sizeof(int16_t));
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc b/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
index d6bf0927f7..ebe61295ed 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
@@ -14,6 +14,7 @@
 #include <cassert> //assert
 
 #include "trace.h"
+#include "trace_event.h"
 #include "critical_section_wrapper.h"
 #include "rtcp_utility.h"
 #include "rtp_rtcp_impl.h"
@@ -397,8 +398,9 @@ RTCPReceiver::HandleSenderReceiverReport(RTCPUtility::RTCPParserV2& rtcpParser,
 
     if (rtcpPacketType == RTCPUtility::kRtcpSrCode)
     {
-        WEBRTC_TRACE(kTraceDebug, kTraceRtpRtcp, _id,
-            "Received SR(%d). SSRC:0x%x, from SSRC:0x%x, to us %d.", _id, _SSRC, remoteSSRC, (_remoteSSRC == remoteSSRC)?1:0);
+        TRACE_EVENT_INSTANT2("webrtc_rtp", "SR",
+                             "remote_ssrc", remoteSSRC,
+                             "ssrc", _SSRC);
 
         if (_remoteSSRC == remoteSSRC) // have I received RTP packets from this party
         {
@@ -427,8 +429,9 @@ RTCPReceiver::HandleSenderReceiverReport(RTCPUtility::RTCPParserV2& rtcpParser,
         }
     } else
     {
-        WEBRTC_TRACE(kTraceDebug, kTraceRtpRtcp, _id,
-            "Received RR(%d). SSRC:0x%x, from SSRC:0x%x", _id, _SSRC, remoteSSRC);
+        TRACE_EVENT_INSTANT2("webrtc_rtp", "RR",
+                             "remote_ssrc", remoteSSRC,
+                             "ssrc", _SSRC);
 
         rtcpPacketInformation.rtcpPacketTypeFlags |= kRtcpRr;
     }
@@ -481,6 +484,10 @@ RTCPReceiver::HandleReportBlock(const RTCPUtility::RTCPPacket& rtcpPacket,
 
   _lastReceivedRrMs = _clock->TimeInMilliseconds();
   const RTCPPacketReportBlockItem& rb = rtcpPacket.ReportBlockItem;
+  TRACE_COUNTER_ID1("webrtc_rtp", "RRFractionLost", rb.SSRC, rb.FractionLost);
+  TRACE_COUNTER_ID1("webrtc_rtp", "RRCumulativeNumOfPacketLost",
+                    rb.SSRC, rb.CumulativeNumOfPacketsLost);
+  TRACE_COUNTER_ID1("webrtc_rtp", "RRJitter", rb.SSRC, rb.Jitter);
   reportBlock->remoteReceiveBlock.remoteSSRC = remoteSSRC;
   reportBlock->remoteReceiveBlock.sourceSSRC = rb.SSRC;
   reportBlock->remoteReceiveBlock.fractionLost = rb.FractionLost;
@@ -554,9 +561,7 @@ RTCPReceiver::HandleReportBlock(const RTCPUtility::RTCPPacket& rtcpPacket,
     reportBlock->numAverageCalcs++;
   }
 
-  WEBRTC_TRACE(kTraceDebug, kTraceRtpRtcp, _id,
-               " -> Received report block(%d), from SSRC:0x%x, RTT:%d, loss:%d",
-               _id, remoteSSRC, RTT, rtcpPacket.ReportBlockItem.FractionLost);
+  TRACE_COUNTER_ID1("webrtc_rtp", "RR_RTT", rb.SSRC, RTT);
 
   // rtcpPacketInformation
   rtcpPacketInformation.AddReportInfo(
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc b/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
index ef97f85ac4..5dc571af88 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
@@ -1117,7 +1117,7 @@ RTCPSender::BuildREMB(uint8_t* rtcpbuffer, uint32_t& pos)
         ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _rembSSRC[i]);
         pos += 4;
     }
-    TRACE_COUNTER1("webrtc_rtcp", "Remb", _rembBitrate);
+    TRACE_COUNTER_ID1("webrtc_rtp", "RTCPRembBitrate", _SSRC, _rembBitrate);
     return 0;
 }
 
@@ -1842,9 +1842,9 @@ RTCPSender::SendRTCP(const uint32_t packetTypeFlags,
             {
                 break;  // out of buffer
             }
-            TRACE_EVENT_INSTANT1("webrtc_rtcp", "SendRTCP", "type", "pli");
+            TRACE_EVENT_INSTANT0("webrtc_rtp", "RTCPSender::PLI");
             _pliCount++;
-            TRACE_COUNTER1("webrtc_rtcp", "PLI Count", _pliCount);
+            TRACE_COUNTER_ID1("webrtc_rtp", "RTCP_PLICount", _SSRC, _pliCount);
         }
         if(rtcpPacketTypeFlags & kRtcpFir)
         {
@@ -1857,9 +1857,10 @@ RTCPSender::SendRTCP(const uint32_t packetTypeFlags,
             {
                 break;  // out of buffer
             }
-            TRACE_EVENT_INSTANT1("webrtc_rtcp", "SendRTCP", "type", "fir");
+            TRACE_EVENT_INSTANT0("webrtc_rtp", "RTCPSender::FIR");
             _fullIntraRequestCount++;
-            TRACE_COUNTER1("webrtc_rtcp", "FIR Count", _fullIntraRequestCount);
+            TRACE_COUNTER_ID1("webrtc_rtp", "RTCP_FIRCount", _SSRC,
+                              _fullIntraRequestCount);
         }
         if(rtcpPacketTypeFlags & kRtcpSli)
         {
@@ -1901,8 +1902,7 @@ RTCPSender::SendRTCP(const uint32_t packetTypeFlags,
             {
                 break;  // out of buffer
             }
-            TRACE_EVENT_INSTANT2("webrtc_rtcp", "SendRTCP", "type", "remb",
-                                 "bitrate", _rembBitrate);
+            TRACE_EVENT_INSTANT0("webrtc_rtp", "RTCPSender::REMB");
         }
         if(rtcpPacketTypeFlags & kRtcpBye)
         {
@@ -1965,10 +1965,10 @@ RTCPSender::SendRTCP(const uint32_t packetTypeFlags,
             {
                 break;  // out of buffer
             }
-            TRACE_EVENT_INSTANT2("webrtc_rtcp", "SendRTCP", "type", "nack",
-                                 "list", TRACE_STR_COPY(nackString.c_str()));
+            TRACE_EVENT_INSTANT1("webrtc_rtp", "RTCPSender::NACK",
+                                 "nacks", TRACE_STR_COPY(nackString.c_str()));
             _nackCount++;
-            TRACE_COUNTER1("webrtc_rtcp", "Nacks", _nackCount);
+            TRACE_COUNTER_ID1("webrtc_rtp", "RTCP_NACKCount", _SSRC, _nackCount);
         }
         if(rtcpPacketTypeFlags & kRtcpXrVoipMetric)
         {
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_receiver.cc b/webrtc/modules/rtp_rtcp/source/rtp_receiver.cc
index f18529c0ce..ba2bdba11d 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_receiver.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_receiver.cc
@@ -337,6 +337,7 @@ int32_t RTPReceiver::IncomingRTPPacket(
   WebRtcRTPHeader* rtp_header,
   const uint8_t* packet,
   const uint16_t packet_length) {
+  TRACE_EVENT0("webrtc_rtp", "RTPRecv::Packet");
   // The rtp_header argument contains the parsed RTP header.
   int length = packet_length - rtp_header->header.paddingLength;
 
@@ -1141,8 +1142,10 @@ void RTPReceiver::ProcessBitrate() {
   CriticalSectionScoped cs(critical_section_rtp_receiver_);
 
   Bitrate::Process();
-  TRACE_COUNTER1("webrtc_rtp", "Received Bitrate", BitrateLast());
-  TRACE_COUNTER1("webrtc_rtp", "Received Packet Rate", PacketRate());
+  TRACE_COUNTER_ID1("webrtc_rtp",
+                    "RTPReceiverBitrate", ssrc_, BitrateLast());
+  TRACE_COUNTER_ID1("webrtc_rtp",
+                    "RTPReceiverPacketRate", ssrc_, PacketRate());
 }
 
 } // namespace webrtc
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_receiver_audio.cc b/webrtc/modules/rtp_rtcp/source/rtp_receiver_audio.cc
index ea921ccedf..857fa60280 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_receiver_audio.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_receiver_audio.cc
@@ -191,10 +191,9 @@ int32_t RTPReceiverAudio::ParseRtpPacket(
     const uint16_t packet_length,
     const int64_t timestamp_ms,
     const bool is_first_packet) {
-  TRACE_EVENT_INSTANT2("webrtc_rtp", "RTPReceiverAudio::ParseRtpPacket",
-                       "seqnum", rtp_header->header.sequenceNumber,
-                       "timestamp", rtp_header->header.timestamp);
-
+  TRACE_EVENT2("webrtc_rtp", "Audio::ParseRtp",
+               "seqnum", rtp_header->header.sequenceNumber,
+               "timestamp", rtp_header->header.timestamp);
   const uint8_t* payload_data =
       ModuleRTPUtility::GetPayloadData(rtp_header, packet);
   const uint16_t payload_data_length =
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_receiver_video.cc b/webrtc/modules/rtp_rtcp/source/rtp_receiver_video.cc
index ca6e05b972..bb361dc7ab 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_receiver_video.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_receiver_video.cc
@@ -75,9 +75,9 @@ int32_t RTPReceiverVideo::ParseRtpPacket(
     const uint16_t packet_length,
     const int64_t timestamp_ms,
     const bool is_first_packet) {
-  TRACE_EVENT_INSTANT2("webrtc_rtp", "RTPReceiverVideo::ParseRtpPacket",
-                       "seqnum", rtp_header->header.sequenceNumber,
-                       "timestamp", rtp_header->header.timestamp);
+  TRACE_EVENT2("webrtc_rtp", "Video::ParseRtp",
+               "seqnum", rtp_header->header.sequenceNumber,
+               "timestamp", rtp_header->header.timestamp);
   const uint8_t* payload_data =
       ModuleRTPUtility::GetPayloadData(rtp_header, packet);
   const uint16_t payload_data_length =
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_sender.cc b/webrtc/modules/rtp_rtcp/source/rtp_sender.cc
index 9c5cfe02ef..0e481c752f 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_sender.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_sender.cc
@@ -18,9 +18,27 @@
 #include "webrtc/modules/rtp_rtcp/source/rtp_sender_video.h"
 #include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
 #include "webrtc/system_wrappers/interface/trace.h"
+#include "webrtc/system_wrappers/interface/trace_event.h"
 
 namespace webrtc {
 
+namespace {
+
+const char* FrameTypeToString(const FrameType frame_type) {
+  switch (frame_type) {
+    case kFrameEmpty: return "empty";
+    case kAudioFrameSpeech: return "audio_speech";
+    case kAudioFrameCN: return "audio_cn";
+    case kVideoFrameKey: return "video_key";
+    case kVideoFrameDelta: return "video_delta";
+    case kVideoFrameGolden: return "video_golden";
+    case kVideoFrameAltRef: return "video_altref";
+  }
+  return "";
+}
+
+}  // namespace
+
 RTPSender::RTPSender(const int32_t id, const bool audio, Clock *clock,
                      Transport *transport, RtpAudioFeedback *audio_feedback,
                      PacedSender *paced_sender)
@@ -305,6 +323,9 @@ int32_t RTPSender::SendOutgoingData(
     const uint8_t *payload_data, const uint32_t payload_size,
     const RTPFragmentationHeader *fragmentation,
     VideoCodecInformation *codec_info, const RTPVideoTypeHeader *rtp_type_hdr) {
+  TRACE_EVENT2("webrtc_rtp", "RTPSender::SendOutgoingData",
+               "timestsamp", capture_timestamp,
+               "frame_type", FrameTypeToString(frame_type));
   {
     // Drop this packet if we're not sending media packets.
     CriticalSectionScoped cs(send_critsect_);
@@ -448,6 +469,12 @@ int32_t RTPSender::ReSendPacket(uint16_t packet_id, uint32_t min_resend_time) {
   }
 
   int32_t bytes_sent = ReSendToNetwork(buffer_to_send_ptr, length);
+  ModuleRTPUtility::RTPHeaderParser rtp_parser(data_buffer, length);
+  WebRtcRTPHeader rtp_header;
+  rtp_parser.Parse(rtp_header);
+  TRACE_EVENT_INSTANT2("webrtc_rtp", "RTPSender::ReSendPacket",
+                       "timestamp", rtp_header.header.timestamp,
+                       "seqnum", rtp_header.header.sequenceNumber);
   if (bytes_sent <= 0) {
     WEBRTC_TRACE(kTraceWarning, kTraceRtpRtcp, id_,
                  "Transport failed to resend packet_id %u", packet_id);
@@ -490,6 +517,8 @@ int RTPSender::SetSelectiveRetransmissions(uint8_t settings) {
 void RTPSender::OnReceivedNACK(
     const std::list<uint16_t>& nack_sequence_numbers,
     const uint16_t avg_rtt) {
+  TRACE_EVENT2("webrtc_rtp", "RTPSender::OnReceivedNACK",
+               "num_seqnum", nack_sequence_numbers.size(), "avg_rtt", avg_rtt);
   const int64_t now = clock_->TimeInMilliseconds();
   uint32_t bytes_re_sent = 0;
 
@@ -608,6 +637,9 @@ void RTPSender::TimeToSendPacket(uint16_t sequence_number,
   ModuleRTPUtility::RTPHeaderParser rtp_parser(data_buffer, length);
   WebRtcRTPHeader rtp_header;
   rtp_parser.Parse(rtp_header);
+  TRACE_EVENT_INSTANT2("webrtc_rtp", "RTPSender::TimeToSendPacket",
+                       "timestamp", rtp_header.header.timestamp,
+                       "seqnum", sequence_number);
 
   int64_t diff_ms = clock_->TimeInMilliseconds() - capture_time_ms;
   if (UpdateTransmissionTimeOffset(data_buffer, length, rtp_header, diff_ms)) {
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_sender_audio.cc b/webrtc/modules/rtp_rtcp/source/rtp_sender_audio.cc
index 8589874885..6e9c93147f 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_sender_audio.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_sender_audio.cc
@@ -13,6 +13,8 @@
 #include <string.h> //memcpy
 #include <cassert> //assert
 
+#include "trace_event.h"
+
 namespace webrtc {
 RTPSenderAudio::RTPSenderAudio(const int32_t id, Clock* clock,
                                RTPSenderInterface* rtpSender) :
@@ -471,6 +473,9 @@ int32_t RTPSenderAudio::SendAudio(
     }
     _lastPayloadType = payloadType;
   }   // end critical section
+  TRACE_EVENT_INSTANT2("webrtc_rtp", "Audio::Send",
+                       "timestamp", captureTimeStamp,
+                       "seqnum", _rtpSender->SequenceNumber());
   return _rtpSender->SendToNetwork(dataBuffer,
                                    payloadSize,
                                    static_cast<uint16_t>(rtpHeaderLength),
@@ -609,6 +614,10 @@ RTPSenderAudio::SendTelephoneEventPacket(const bool ended,
         ModuleRTPUtility::AssignUWord16ToBuffer(dtmfbuffer+14, duration);
 
         _sendAudioCritsect->Leave();
+        TRACE_EVENT_INSTANT2("webrtc_rtp",
+                             "Audio::SendTelephoneEvent",
+                             "timestamp", dtmfTimeStamp,
+                             "seqnum", _rtpSender->SequenceNumber());
         retVal = _rtpSender->SendToNetwork(dtmfbuffer, 4, 12, -1,
                                            kAllowRetransmission);
         sendCount--;
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc b/webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc
index 034b3df344..817dd65944 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc
@@ -12,6 +12,7 @@
 
 #include "critical_section_wrapper.h"
 #include "trace.h"
+#include "trace_event.h"
 
 #include "rtp_utility.h"
 
@@ -111,6 +112,7 @@ int32_t
 RTPSenderVideo::SendVideoPacket(uint8_t* data_buffer,
                                 const uint16_t payload_length,
                                 const uint16_t rtp_header_length,
+                                const uint32_t capture_timestamp,
                                 int64_t capture_time_ms,
                                 StorageType storage,
                                 bool protect) {
@@ -123,6 +125,9 @@ RTPSenderVideo::SendVideoPacket(uint8_t* data_buffer,
                                                          payload_length,
                                                          rtp_header_length,
                                                          _payloadTypeRED);
+    TRACE_EVENT_INSTANT2("webrtc_rtp", "Video::PacketRed",
+                         "timestamp", capture_timestamp,
+                         "seqnum", _rtpSender.SequenceNumber());
     // Sending the media packet with RED header.
     int packet_success = _rtpSender.SendToNetwork(
         red_packet->data(),
@@ -157,6 +162,9 @@ RTPSenderVideo::SendVideoPacket(uint8_t* data_buffer,
       if (_retransmissionSettings & kRetransmitFECPackets) {
         storage = kAllowRetransmission;
       }
+      TRACE_EVENT_INSTANT2("webrtc_rtp", "Video::PacketFec",
+                           "timestamp", capture_timestamp,
+                           "seqnum", _rtpSender.SequenceNumber());
       // Sending FEC packet with RED header.
       int packet_success = _rtpSender.SendToNetwork(
           red_packet->data(),
@@ -177,6 +185,9 @@ RTPSenderVideo::SendVideoPacket(uint8_t* data_buffer,
     _fecOverheadRate.Update(fec_overhead_sent);
     return ret;
   }
+  TRACE_EVENT_INSTANT2("webrtc_rtp", "Video::PacketNormal",
+                       "timestamp", capture_timestamp,
+                       "seqnum", _rtpSender.SequenceNumber());
   int ret = _rtpSender.SendToNetwork(data_buffer,
                                      payload_length,
                                      rtp_header_length,
@@ -203,6 +214,9 @@ RTPSenderVideo::SendRTPIntraRequest()
 
     ModuleRTPUtility::AssignUWord32ToBuffer(data+4, _rtpSender.SSRC());
 
+    TRACE_EVENT_INSTANT1("webrtc_rtp",
+                         "Video::IntraRequest",
+                         "seqnum", _rtpSender.SequenceNumber());
     return _rtpSender.SendToNetwork(data, 0, length, -1, kDontStore);
 }
 
@@ -361,7 +375,8 @@ int32_t RTPSenderVideo::SendGeneric(const FrameType frame_type,
     payload += payload_length;
 
     if (SendVideoPacket(buffer, payload_length + 1, rtp_header_length,
-                        capture_time_ms, kAllowRetransmission, true)) {
+                        capture_timestamp, capture_time_ms,
+                        kAllowRetransmission, true)) {
       return -1;
     }
   }
@@ -450,7 +465,8 @@ RTPSenderVideo::SendVP8(const FrameType frameType,
         _rtpSender.BuildRTPheader(dataBuffer, payloadType, last,
             captureTimeStamp);
         if (-1 == SendVideoPacket(dataBuffer, payloadBytesInPacket,
-            rtpHeaderLength, capture_time_ms, storage, protect))
+                                  rtpHeaderLength, captureTimeStamp,
+                                  capture_time_ms, storage, protect))
         {
           WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id,
                        "RTPSenderVideo::SendVP8 failed to send packet number"
@@ -463,6 +479,12 @@ RTPSenderVideo::SendVP8(const FrameType frameType,
 void RTPSenderVideo::ProcessBitrate() {
   _videoBitrate.Process();
   _fecOverheadRate.Process();
+  TRACE_COUNTER_ID1("webrtc_rtp", "VideoSendBitrate",
+                    _rtpSender.SSRC(),
+                    _videoBitrate.BitrateLast());
+  TRACE_COUNTER_ID1("webrtc_rtp", "VideoFecOverheadRate",
+                    _rtpSender.SSRC(),
+                    _fecOverheadRate.BitrateLast());
 }
 
 uint32_t RTPSenderVideo::VideoBitrateSent() const {
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_sender_video.h b/webrtc/modules/rtp_rtcp/source/rtp_sender_video.h
index e1dc942c4d..ad15d1f8c6 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_sender_video.h
+++ b/webrtc/modules/rtp_rtcp/source/rtp_sender_video.h
@@ -92,6 +92,7 @@ protected:
     virtual int32_t SendVideoPacket(uint8_t* dataBuffer,
                                     const uint16_t payloadLength,
                                     const uint16_t rtpHeaderLength,
+                                    const uint32_t capture_timestamp,
                                     int64_t capture_time_ms,
                                     StorageType storage,
                                     bool protect);
diff --git a/webrtc/modules/video_capture/video_capture_impl.cc b/webrtc/modules/video_capture/video_capture_impl.cc
index 49762376ba..eb2b4aad26 100644
--- a/webrtc/modules/video_capture/video_capture_impl.cc
+++ b/webrtc/modules/video_capture/video_capture_impl.cc
@@ -16,6 +16,7 @@
 #include "ref_count.h"
 #include "tick_util.h"
 #include "trace.h"
+#include "trace_event.h"
 #include "video_capture_config.h"
 
 #include <stdlib.h>
@@ -199,6 +200,9 @@ WebRtc_Word32 VideoCaptureImpl::DeliverCapturedFrame(I420VideoFrame&
       captureFrame.set_render_time_ms(TickTime::MillisecondTimestamp());
   }
 
+  TRACE_EVENT1("webrtc", "VC::DeliverCapturedFrame",
+               "capture_time", capture_time);
+
   if (captureFrame.render_time_ms() == last_capture_time_) {
     // We don't allow the same capture time for two frames, drop this one.
     return -1;
@@ -267,6 +271,8 @@ WebRtc_Word32 VideoCaptureImpl::IncomingFrame(
     const WebRtc_Word32 width = frameInfo.width;
     const WebRtc_Word32 height = frameInfo.height;
 
+    TRACE_EVENT1("webrtc", "VC::IncomingFrame", "capture_time", captureTime);
+
     if (frameInfo.codecType == kVideoCodecUnknown)
     {
         // Not encoded, convert to I420.
diff --git a/webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc b/webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc
index 9a57e4c5a7..7516d4655a 100644
--- a/webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc
+++ b/webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc
@@ -331,6 +331,8 @@ uint32_t VP8EncoderImpl::MaxIntraTarget(uint32_t optimalBuffersize) {
 int VP8EncoderImpl::Encode(const I420VideoFrame& input_image,
                            const CodecSpecificInfo* codec_specific_info,
                            const std::vector<VideoFrameType>* frame_types) {
+  TRACE_EVENT1("webrtc", "VP8::Encode", "timestamp", input_image.timestamp());
+
   if (!inited_) {
     return WEBRTC_VIDEO_CODEC_UNINITIALIZED;
   }
@@ -390,9 +392,6 @@ int VP8EncoderImpl::Encode(const I420VideoFrame& input_image,
                               input_image.timestamp());
   }
 
-  TRACE_EVENT1("video_coding", "VP8EncoderImpl::Encode",
-               "input_image_timestamp", input_image.timestamp());
-
   // TODO(holmer): Ideally the duration should be the timestamp diff of this
   // frame and the next frame to be encoded, which we don't have. Instead we
   // would like to use the duration of the previous frame. Unfortunately the
diff --git a/webrtc/modules/video_coding/main/source/generic_decoder.cc b/webrtc/modules/video_coding/main/source/generic_decoder.cc
index 7f7805438d..1b74d229dc 100644
--- a/webrtc/modules/video_coding/main/source/generic_decoder.cc
+++ b/webrtc/modules/video_coding/main/source/generic_decoder.cc
@@ -64,9 +64,6 @@ int32_t VCMDecodedFrameCallback::Decoded(I420VideoFrame& decodedImage)
         _frame.SwapFrame(&decodedImage);
         _frame.set_render_time_ms(frameInfo->renderTimeMs);
         int32_t callbackReturn = _receiveCallback->FrameToRender(_frame);
-        TRACE_EVENT_INSTANT2("webrtc_vie", "VCMDecodedFrameCallback::Decoded",
-                             "timestamp", decodedImage.timestamp(),
-                             "render_time_ms", decodedImage.render_time_ms());
         if (callbackReturn < 0)
         {
             WEBRTC_TRACE(webrtc::kTraceDebug,
@@ -169,10 +166,6 @@ int32_t VCMGenericDecoder::Decode(const VCMEncodedFrame& frame,
                  "Decoding timestamp %u", frame.TimeStamp());
 
     _nextFrameInfoIdx = (_nextFrameInfoIdx + 1) % kDecoderFrameMemoryLength;
-
-    TRACE_EVENT2("webrtc_vie", "VCMGenericDecoder::Decode",
-                 "timestamp", frame.TimeStamp(),
-                 "render_time_ms", frame.RenderTimeMs());
     int32_t ret = _decoder.Decode(frame.EncodedImage(),
                                         frame.MissingFrame(),
                                         frame.FragmentationHeader(),
diff --git a/webrtc/modules/video_coding/main/source/generic_encoder.cc b/webrtc/modules/video_coding/main/source/generic_encoder.cc
index 6c1adfb7b6..fda3df2415 100644
--- a/webrtc/modules/video_coding/main/source/generic_encoder.cc
+++ b/webrtc/modules/video_coding/main/source/generic_encoder.cc
@@ -12,6 +12,7 @@
 #include "generic_encoder.h"
 #include "media_optimization.h"
 #include "../../../../engine_configurations.h"
+#include "trace_event.h"
 
 namespace webrtc {
 
@@ -177,6 +178,8 @@ VCMEncodedFrameCallback::Encoded(
     const CodecSpecificInfo* codecSpecificInfo,
     const RTPFragmentationHeader* fragmentationHeader)
 {
+    TRACE_EVENT2("webrtc", "VCM::Encoded", "timestamp", encodedImage._timeStamp,
+                 "length", encodedImage._length);
     FrameType frameType = VCMEncodedFrame::ConvertFrameType(encodedImage._frameType);
 
     uint32_t encodedBytes = 0;
diff --git a/webrtc/modules/video_coding/main/source/jitter_buffer.cc b/webrtc/modules/video_coding/main/source/jitter_buffer.cc
index c01afcc9b1..0953b71837 100644
--- a/webrtc/modules/video_coding/main/source/jitter_buffer.cc
+++ b/webrtc/modules/video_coding/main/source/jitter_buffer.cc
@@ -215,7 +215,7 @@ void VCMJitterBuffer::Stop() {
   running_ = false;
   last_decoded_state_.Reset();
   frame_list_.clear();
-  TRACE_EVENT_INSTANT1("webrtc_vie", "FrameListEmptied", "type", "Stop");
+  TRACE_EVENT_INSTANT1("webrtc", "JB::FrameListEmptied", "type", "Stop");
   for (int i = 0; i < kMaxNumberOfFrames; i++) {
     if (frame_buffers_[i] != NULL) {
       static_cast<VCMFrameBuffer*>(frame_buffers_[i])->SetState(kStateFree);
@@ -240,7 +240,8 @@ void VCMJitterBuffer::Flush() {
   CriticalSectionScoped cs(crit_sect_);
   // Erase all frames from the sorted list and set their state to free.
   frame_list_.clear();
-  TRACE_EVENT_INSTANT1("webrtc_vie", "FrameListEmptied", "type", "Flush");
+  TRACE_EVENT_INSTANT2("webrtc", "JB::FrameListEmptied", "type", "Flush",
+                       "frames", max_number_of_frames_);
   for (int i = 0; i < max_number_of_frames_; i++) {
     ReleaseFrameIfNotDecoding(frame_buffers_[i]);
   }
@@ -261,7 +262,6 @@ void VCMJitterBuffer::Flush() {
   WEBRTC_TRACE(webrtc::kTraceDebug, webrtc::kTraceVideoCoding,
                VCMId(vcm_id_, receiver_id_), "JB(0x%x): Jitter buffer: flush",
                this);
-  TRACE_EVENT_INSTANT0("webrtc_vie", "VCMJitterBuffer::Flush");
 }
 
 // Get received key and delta frames
@@ -340,8 +340,8 @@ void VCMJitterBuffer::IncomingRateStatistics(unsigned int* framerate,
     bitrate = 0;
     incoming_bit_rate_ = 0;
   }
-  TRACE_COUNTER1("webrtc_vie", "IncomingFrameRate", incoming_frame_rate_);
-  TRACE_COUNTER1("webrtc_vie", "IncomingBitRate", incoming_bit_rate_);
+  TRACE_COUNTER1("webrtc", "JBIncomingFramerate", incoming_frame_rate_);
+  TRACE_COUNTER1("webrtc", "JBIncomingBitrate", incoming_bit_rate_);
 }
 
 // Wait for the first packet in the next frame to arrive.
@@ -433,6 +433,7 @@ bool VCMJitterBuffer::CompleteSequenceWithNextFrame() {
 // complete frame, |max_wait_time_ms| decided by caller.
 VCMEncodedFrame* VCMJitterBuffer::GetCompleteFrameForDecoding(
     uint32_t max_wait_time_ms) {
+  TRACE_EVENT0("webrtc", "JB::GetCompleteFrame");
   if (!running_) {
     return NULL;
   }
@@ -495,7 +496,7 @@ VCMEncodedFrame* VCMJitterBuffer::GetCompleteFrameForDecoding(
   VCMFrameBuffer* oldest_frame = *it;
   it = frame_list_.erase(it);
   if (frame_list_.empty()) {
-    TRACE_EVENT_INSTANT1("webrtc_vie", "FrameListEmptied",
+    TRACE_EVENT_INSTANT1("webrtc", "JB::FrameListEmptied",
                          "type", "GetCompleteFrameForDecoding");
   }
 
@@ -521,15 +522,11 @@ VCMEncodedFrame* VCMJitterBuffer::GetCompleteFrameForDecoding(
   DropPacketsFromNackList(last_decoded_state_.sequence_num());
 
   crit_sect_->Leave();
-
-  TRACE_EVENT_INSTANT2("webrtc_vie",
-                       "VCMJitterBuffer::GetCompleteFrameForDecoding",
-                       "timestamp", oldest_frame->TimeStamp(),
-                       "render_time_ms", oldest_frame->RenderTimeMs());
   return oldest_frame;
 }
 
 VCMEncodedFrame* VCMJitterBuffer::GetFrameForDecoding() {
+  TRACE_EVENT0("webrtc", "JB::GetFrameForDecoding");
   CriticalSectionScoped cs(crit_sect_);
   if (!running_) {
     return NULL;
@@ -572,7 +569,7 @@ VCMEncodedFrame* VCMJitterBuffer::GetFrameForDecoding() {
   }
   frame_list_.erase(frame_list_.begin());
   if (frame_list_.empty()) {
-    TRACE_EVENT_INSTANT1("webrtc_vie", "FrameListEmptied",
+    TRACE_EVENT_INSTANT1("webrtc", "JB::FrameListEmptied",
                          "type", "GetFrameForDecoding");
   }
 
@@ -596,11 +593,6 @@ VCMEncodedFrame* VCMJitterBuffer::GetFrameForDecoding() {
   // We have a frame - update decoded state with frame info.
   last_decoded_state_.SetState(oldest_frame);
   DropPacketsFromNackList(last_decoded_state_.sequence_num());
-
-  TRACE_EVENT_INSTANT2("webrtc_vie",
-                       "VCMJitterBuffer::GetFrameForDecoding",
-                       "timestamp", oldest_frame->TimeStamp(),
-                       "render_time_ms", oldest_frame->RenderTimeMs());
   return oldest_frame;
 }
 
@@ -627,10 +619,10 @@ int VCMJitterBuffer::GetFrame(const VCMPacket& packet,
     if (packet.sizeBytes > 0) {
       num_discarded_packets_++;
       num_consecutive_old_packets_++;
-      TRACE_EVENT_INSTANT2("webrtc_vie", "OldPacketDropped",
+      TRACE_EVENT_INSTANT2("webrtc", "JB::OldPacketDropped",
                            "seqnum", packet.seqNum,
                            "timestamp", packet.timestamp);
-      TRACE_COUNTER1("webrtc_vie", "DroppedOldPackets", num_discarded_packets_);
+      TRACE_COUNTER1("webrtc", "JBDroppedOldPackets", num_discarded_packets_);
     }
     // Update last decoded sequence number if the packet arrived late and
     // belongs to a frame with a timestamp equal to the last decoded
@@ -896,6 +888,8 @@ uint16_t* VCMJitterBuffer::GetNackList(uint16_t* nack_list_size,
     return NULL;
   }
   if (TooLargeNackList()) {
+    TRACE_EVENT_INSTANT1("webrtc", "JB::NackListTooLarge",
+                         "size", missing_sequence_numbers_.size());
     *request_key_frame = !HandleTooLargeNackList();
   }
   unsigned int i = 0;
@@ -925,6 +919,7 @@ bool VCMJitterBuffer::UpdateNackList(uint16_t sequence_number) {
     for (uint16_t i = latest_received_sequence_number_ + 1;
         i < sequence_number; ++i) {
       missing_sequence_numbers_.insert(missing_sequence_numbers_.end(), i);
+      TRACE_EVENT_INSTANT1("webrtc", "AddNack", "seqnum", i);
     }
     if (TooLargeNackList() && !HandleTooLargeNackList()) {
       return false;
@@ -935,6 +930,7 @@ bool VCMJitterBuffer::UpdateNackList(uint16_t sequence_number) {
     }
   } else {
     missing_sequence_numbers_.erase(sequence_number);
+    TRACE_EVENT_INSTANT1("webrtc", "RemoveNack", "seqnum", sequence_number);
   }
   return true;
 }
@@ -994,6 +990,7 @@ int64_t VCMJitterBuffer::LastDecodedTimestamp() const {
 }
 
 VCMEncodedFrame* VCMJitterBuffer::GetFrameForDecodingNACK() {
+  TRACE_EVENT0("webrtc", "JB::GetFrameForDecodingNACK");
   CleanUpOldOrEmptyFrames();
   // First look for a complete continuous frame.
   // When waiting for nack, wait for a key frame, if a continuous frame cannot
@@ -1023,7 +1020,7 @@ VCMEncodedFrame* VCMJitterBuffer::GetFrameForDecodingNACK() {
   }
   it = frame_list_.erase(it);
   if (frame_list_.empty()) {
-    TRACE_EVENT_INSTANT1("webrtc_vie", "FrameListEmptied",
+    TRACE_EVENT_INSTANT1("webrtc", "JB::FrameListEmptied",
                          "type", "GetFrameForDecodingNACK");
   }
 
@@ -1045,11 +1042,6 @@ VCMEncodedFrame* VCMJitterBuffer::GetFrameForDecodingNACK() {
   // We have a frame - update decoded state with frame info.
   last_decoded_state_.SetState(oldest_frame);
   DropPacketsFromNackList(last_decoded_state_.sequence_num());
-
-  TRACE_EVENT_INSTANT2("webrtc_vie",
-                       "VCMJitterBuffer::GetFrameForDecodingNACK",
-                       "timestamp", oldest_frame->TimeStamp(),
-                       "render_time_ms", oldest_frame->RenderTimeMs());
   return oldest_frame;
 }
 
@@ -1066,8 +1058,6 @@ VCMFrameBuffer* VCMJitterBuffer::GetEmptyFrame() {
     return NULL;
   }
 
-  TRACE_EVENT_INSTANT0("webrtc_vie", "VCMJitterBuffer::GetEmptyFrame");
-
   crit_sect_->Enter();
 
   for (int i = 0; i < max_number_of_frames_; ++i) {
@@ -1091,8 +1081,7 @@ VCMFrameBuffer* VCMJitterBuffer::GetEmptyFrame() {
                  VCMId(vcm_id_, receiver_id_),
                  "JB(0x%x) FB(0x%x): Jitter buffer  increased to:%d frames",
                  this, ptr_new_buffer, max_number_of_frames_);
-    TRACE_EVENT_INSTANT1("webrtc_vie", "JitterBufferIncreased",
-                         "NewSize", max_number_of_frames_);
+    TRACE_COUNTER1("webrtc", "JBMaxFrames", max_number_of_frames_);
     return ptr_new_buffer;
   }
   crit_sect_->Leave();
@@ -1113,8 +1102,7 @@ bool VCMJitterBuffer::RecycleFramesUntilKeyFrame() {
                  VCMId(vcm_id_, receiver_id_),
                  "Jitter buffer drop count:%d, low_seq %d", drop_count_,
                  (*it)->GetLowSeqNum());
-    TRACE_EVENT_INSTANT0("webrtc_vie",
-                         "VCMJitterBuffer::RecycleFramesUntilKeyFrame");
+    TRACE_EVENT_INSTANT0("webrtc", "JB::RecycleFramesUntilKeyFrame");
     ReleaseFrameIfNotDecoding(*it);
     it = frame_list_.erase(it);
     if (it != frame_list_.end() && (*it)->FrameType() == kVideoFrameKey) {
@@ -1125,7 +1113,7 @@ bool VCMJitterBuffer::RecycleFramesUntilKeyFrame() {
     }
   }
   if (frame_list_.empty()) {
-    TRACE_EVENT_INSTANT1("webrtc_vie", "FrameListEmptied",
+    TRACE_EVENT_INSTANT1("webrtc", "JB::FrameListEmptied",
                          "type", "RecycleFramesUntilKeyFrame");
   }
   waiting_for_key_frame_ = true;
@@ -1154,32 +1142,19 @@ VCMFrameBufferEnum VCMJitterBuffer::UpdateFrameState(VCMFrameBuffer* frame) {
                  this, frame, length, frame->FrameType());
   }
 
+  bool frame_counted = false;
   if (length != 0 && !frame->GetCountedFrame()) {
     // Ignore ACK frames.
     incoming_frame_count_++;
-    TRACE_EVENT_INSTANT1("webrtc_vie", "AddFrameToJitterBuffer",
-                         "timestamp", frame->TimeStamp());
-    if (frame->FrameType() == kVideoFrameKey) {
-      TRACE_EVENT_INSTANT1("webrtc_vie", "AddKeyFrameToJitterBuffer",
-                           "timestamp", frame->TimeStamp());
-    }
     frame->SetCountedFrame(true);
-  } else {
-    TRACE_EVENT_INSTANT1("webrtc_vie",
-                         "AddRetransmittedFrameToJitterBuffer",
-                         "timestamp", frame->TimeStamp());
-    if (frame->FrameType() == kVideoFrameKey) {
-      TRACE_EVENT_INSTANT1("webrtc_vie",
-                           "AddRetransmittedKeyFrameToJitterBuffer",
-                           "timestamp", frame->TimeStamp());
-    }
+    frame_counted = true;
   }
 
   // Check if we should drop the frame. A complete frame can arrive too late.
   if (last_decoded_state_.IsOldFrame(frame)) {
     // Frame is older than the latest decoded frame, drop it. Will be
     // released by CleanUpOldFrames later.
-    TRACE_EVENT_INSTANT1("webrtc_vie", "DropLateFrame",
+    TRACE_EVENT_INSTANT1("webrtc", "JB::DropLateFrame",
                          "timestamp", frame->TimeStamp());
     frame->Reset();
     frame->SetState(kStateEmpty);
@@ -1202,6 +1177,15 @@ VCMFrameBufferEnum VCMJitterBuffer::UpdateFrameState(VCMFrameBuffer* frame) {
   }
   num_consecutive_old_frames_ = 0;
   frame->SetState(kStateComplete);
+  if (frame->FrameType() == kVideoFrameKey) {
+    TRACE_EVENT_INSTANT2("webrtc", "JB::AddKeyFrame",
+                         "timestamp", frame->TimeStamp(),
+                         "retransmit", !frame_counted);
+  } else {
+    TRACE_EVENT_INSTANT2("webrtc", "JB::AddFrame",
+                         "timestamp", frame->TimeStamp(),
+                         "retransmit", !frame_counted);
+  }
 
   // Update receive statistics. We count all layers, thus when you use layers
   // adding all key and delta frames might differ from frame count.
@@ -1294,16 +1278,16 @@ void VCMJitterBuffer::CleanUpOldOrEmptyFrames() {
     }
     if (last_decoded_state_.IsOldFrame(oldest_frame)) {
       ReleaseFrameIfNotDecoding(frame_list_.front());
-      TRACE_EVENT_INSTANT1("webrtc_vie", "OldFrameDropped",
+      TRACE_EVENT_INSTANT1("webrtc", "JB::OldFrameDropped",
                            "timestamp", oldest_frame->TimeStamp());
-      TRACE_COUNTER1("webrtc_vie", "DroppedLateFrames", drop_count_);
+      TRACE_COUNTER1("webrtc", "JBDroppedLateFrames", drop_count_);
       frame_list_.erase(frame_list_.begin());
     } else {
       break;
     }
   }
   if (frame_list_.empty()) {
-    TRACE_EVENT_INSTANT1("webrtc_vie", "FrameListEmptied",
+    TRACE_EVENT_INSTANT1("webrtc", "JB::FrameListEmptied",
                          "type", "CleanUpOldOrEmptyFrames");
   }
   if (!last_decoded_state_.in_initial_state()) {
diff --git a/webrtc/modules/video_coding/main/source/receiver.cc b/webrtc/modules/video_coding/main/source/receiver.cc
index 9747244478..68696919db 100644
--- a/webrtc/modules/video_coding/main/source/receiver.cc
+++ b/webrtc/modules/video_coding/main/source/receiver.cc
@@ -18,6 +18,7 @@
 #include "webrtc/modules/video_coding/main/source/media_opt_util.h"
 #include "webrtc/system_wrappers/interface/clock.h"
 #include "webrtc/system_wrappers/interface/trace.h"
+#include "webrtc/system_wrappers/interface/trace_event.h"
 
 namespace webrtc {
 
@@ -173,6 +174,7 @@ VCMEncodedFrame* VCMReceiver::FrameForDecoding(
     int64_t& next_render_time_ms,
     bool render_timing,
     VCMReceiver* dual_receiver) {
+  TRACE_EVENT0("webrtc", "Recv::FrameForDecoding");
   // No need to enter the critical section here since the jitter buffer
   // is thread-safe.
   FrameType incoming_frame_type = kVideoFrameDelta;
@@ -227,6 +229,8 @@ VCMEncodedFrame* VCMReceiver::FrameForDecoding(
     uint16_t max_wait_time_ms,
     int64_t next_render_time_ms,
     VCMReceiver* dual_receiver) {
+  TRACE_EVENT1("webrtc", "FrameForDecoding",
+               "max_wait", max_wait_time_ms);
   // How long can we wait until we must decode the next frame.
   uint32_t wait_time_ms = timing_->MaxWaitingTime(
       next_render_time_ms, clock_->TimeInMilliseconds());
@@ -286,6 +290,7 @@ VCMEncodedFrame* VCMReceiver::FrameForDecoding(
 VCMEncodedFrame* VCMReceiver::FrameForRendering(uint16_t max_wait_time_ms,
                                                 int64_t next_render_time_ms,
                                                 VCMReceiver* dual_receiver) {
+  TRACE_EVENT0("webrtc", "FrameForRendering");
   // How long MUST we wait until we must decode the next frame. This is
   // different for the case where we have a renderer which can render at a
   // specified time. Here we must wait as long as possible before giving the
diff --git a/webrtc/modules/video_coding/main/source/video_coding_impl.cc b/webrtc/modules/video_coding/main/source/video_coding_impl.cc
index a418db8a12..1204fbc316 100644
--- a/webrtc/modules/video_coding/main/source/video_coding_impl.cc
+++ b/webrtc/modules/video_coding/main/source/video_coding_impl.cc
@@ -17,6 +17,7 @@
 #include "trace.h"
 #include "video_codec_interface.h"
 #include "webrtc/system_wrappers/interface/clock.h"
+#include "webrtc/system_wrappers/interface/trace_event.h"
 
 namespace webrtc
 {
@@ -863,6 +864,7 @@ VideoCodingModuleImpl::RegisterPacketRequestCallback(
 int32_t
 VideoCodingModuleImpl::Decode(uint16_t maxWaitTimeMs)
 {
+    TRACE_EVENT1("webrtc", "VCM::Decode", "max_wait", maxWaitTimeMs);
     int64_t nextRenderTimeMs;
     {
         CriticalSectionScoped cs(_receiveCritSect);
@@ -954,6 +956,7 @@ int32_t
 VideoCodingModuleImpl::RequestSliceLossIndication(
     const uint64_t pictureID) const
 {
+    TRACE_EVENT1("webrtc", "RequestSLI", "picture_id", pictureID);
     if (_frameTypeCallback != NULL)
     {
         const int32_t ret =
@@ -980,6 +983,7 @@ VideoCodingModuleImpl::RequestSliceLossIndication(
 int32_t
 VideoCodingModuleImpl::RequestKeyFrame()
 {
+    TRACE_EVENT0("webrtc", "RequestKeyFrame");
     if (_frameTypeCallback != NULL)
     {
         const int32_t ret = _frameTypeCallback->RequestKeyFrame();
@@ -1062,6 +1066,9 @@ VideoCodingModuleImpl::DecodeDualFrame(uint16_t maxWaitTimeMs)
 int32_t
 VideoCodingModuleImpl::Decode(const VCMEncodedFrame& frame)
 {
+    TRACE_EVENT2("webrtc", "Decode",
+                 "timestamp", frame.TimeStamp(),
+                 "type", frame.FrameType());
     // Change decoder if payload type has changed
     const bool renderTimingBefore = _codecDataBase.SupportsRenderScheduling();
     _decoder = _codecDataBase.GetDecoder(frame.PayloadType(),
@@ -1208,6 +1215,9 @@ VideoCodingModuleImpl::IncomingPacket(const uint8_t* incomingPayload,
                                     uint32_t payloadLength,
                                     const WebRtcRTPHeader& rtpInfo)
 {
+    TRACE_EVENT2("webrtc", "VCM::Packet",
+                 "seqnum", rtpInfo.header.sequenceNumber,
+                 "type", rtpInfo.frameType);
     if (incomingPayload == NULL) {
       // The jitter buffer doesn't handle non-zero payload lengths for packets
       // without payload.
diff --git a/webrtc/video_engine/vie_capturer.cc b/webrtc/video_engine/vie_capturer.cc
index f9580e95d6..1a283d7c09 100644
--- a/webrtc/video_engine/vie_capturer.cc
+++ b/webrtc/video_engine/vie_capturer.cc
@@ -20,6 +20,7 @@
 #include "system_wrappers/interface/event_wrapper.h"
 #include "system_wrappers/interface/thread_wrapper.h"
 #include "system_wrappers/interface/trace.h"
+#include "system_wrappers/interface/trace_event.h"
 #include "video_engine/include/vie_image_process.h"
 #include "video_engine/vie_defines.h"
 #include "video_engine/vie_encoder.h"
@@ -353,6 +354,10 @@ void ViECapturer::OnIncomingCapturedFrame(const int32_t capture_id,
   // is slightly off since it's being set when the frame has been received from
   // the camera, and not when the camera actually captured the frame.
   video_frame.set_render_time_ms(video_frame.render_time_ms() - FrameDelay());
+
+  TRACE_EVENT_INSTANT1("webrtc", "VC::OnIncomingCapturedFrame",
+                       "render_time", video_frame.render_time_ms());
+
   captured_frame_.SwapFrame(&video_frame);
   capture_event_.Set();
   return;
@@ -368,6 +373,10 @@ void ViECapturer::OnIncomingCapturedEncodedFrame(const int32_t capture_id,
   // is slightly off since it's being set when the frame has been received from
   // the camera, and not when the camera actually captured the frame.
   video_frame.SetRenderTime(video_frame.RenderTimeMs() - FrameDelay());
+
+  TRACE_EVENT_INSTANT1("webrtc", "VC::OnIncomingCapturedEncodedFrame",
+                       "render_time", video_frame.RenderTimeMs());
+
   assert(codec_type != kVideoCodecUnknown);
   if (encoded_frame_.Length() != 0) {
     // The last encoded frame has not been sent yet. Need to wait.
diff --git a/webrtc/video_engine/vie_encoder.cc b/webrtc/video_engine/vie_encoder.cc
index c647d7a851..ccacf8c0d6 100644
--- a/webrtc/video_engine/vie_encoder.cc
+++ b/webrtc/video_engine/vie_encoder.cc
@@ -23,6 +23,7 @@
 #include "system_wrappers/interface/logging.h"
 #include "system_wrappers/interface/tick_util.h"
 #include "system_wrappers/interface/trace.h"
+#include "system_wrappers/interface/trace_event.h"
 #include "video_engine/include/vie_codec.h"
 #include "video_engine/include/vie_image_process.h"
 #include "video_engine/vie_defines.h"
@@ -507,6 +508,9 @@ void ViEEncoder::DeliverFrame(int id,
                    ViEId(engine_id_, channel_id_),
                    "%s: Dropping frame %llu after a key fame", __FUNCTION__,
                    video_frame->timestamp());
+      TRACE_EVENT_INSTANT1("webrtc", "VE::EncoderDropFrame",
+                           "timestamp", video_frame->timestamp());
+
       drop_next_frame_ = false;
       return;
     }
@@ -517,6 +521,11 @@ void ViEEncoder::DeliverFrame(int id,
   const uint32_t time_stamp =
       kMsToRtpTimestamp *
       static_cast<uint32_t>(video_frame->render_time_ms());
+
+  TRACE_EVENT2("webrtc", "VE::DeliverFrame",
+               "timestamp", time_stamp,
+               "render_time", video_frame->render_time_ms());
+
   video_frame->set_timestamp(time_stamp);
   {
     CriticalSectionScoped cs(callback_cs_.get());
@@ -770,6 +779,9 @@ int32_t ViEEncoder::SendData(
       // Paused, don't send this packet.
       return 0;
     }
+    TRACE_EVENT2("webrtc", "VE::SendData",
+                 "timestamp", time_stamp,
+                 "capture_time_ms", capture_time_ms);
     if (channels_dropping_delta_frames_ &&
         frame_type == webrtc::kVideoFrameKey) {
       WEBRTC_TRACE(webrtc::kTraceStream, webrtc::kTraceVideo,
diff --git a/webrtc/video_engine/vie_sync_module.cc b/webrtc/video_engine/vie_sync_module.cc
index 8cf56c0dc6..fe7a1cabb2 100644
--- a/webrtc/video_engine/vie_sync_module.cc
+++ b/webrtc/video_engine/vie_sync_module.cc
@@ -153,10 +153,9 @@ int32_t ViESyncModule::Process() {
     return 0;
   }
 
-  TRACE_COUNTER1("webrtc_sync", "CurrentVideoDelay",
-                 total_video_delay_target_ms);
-  TRACE_COUNTER1("webrtc_sync", "CurrentAudioDelay", current_audio_delay_ms);
-  TRACE_COUNTER1("webrtc_sync", "RelativeDelay", relative_delay_ms);
+  TRACE_COUNTER1("webrtc", "SyncCurrentVideoDelay", total_video_delay_target_ms);
+  TRACE_COUNTER1("webrtc", "SyncCurrentAudioDelay", current_audio_delay_ms);
+  TRACE_COUNTER1("webrtc", "SyncRelativeDelay", relative_delay_ms);
   int extra_audio_delay_ms = 0;
   // Calculate the necessary extra audio delay and desired total video
   // delay to get the streams in sync.
@@ -167,8 +166,8 @@ int32_t ViESyncModule::Process() {
     return 0;
   }
 
-  TRACE_COUNTER1("webrtc_sync", "ExtraAudioDelayTarget", extra_audio_delay_ms);
-  TRACE_COUNTER1("webrtc_sync", "TotalVideoDelayTarget",
+  TRACE_COUNTER1("webrtc", "SyncExtraAudioDelayTarget", extra_audio_delay_ms);
+  TRACE_COUNTER1("webrtc", "SyncTotalVideoDelayTarget",
                  total_video_delay_target_ms);
   if (voe_sync_interface_->SetMinimumPlayoutDelay(
       voe_channel_id_, extra_audio_delay_ms) == -1) {