Rename RTC_HISTOGRAM_* macros to RTC_HISTOGRAM_*_SPARSE_* to indicate that these are for infrequent

webrtc/video/send_statistics_proxy.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 39 matching lines @@
   } else if (payload_name == "VP9") {
     return kVideoVp9;
   } else if (payload_name == "H264") {
     return kVideoH264;
   } else {
     return kVideoUnknown;
   }
 }
 
 void UpdateCodecTypeHistogram(const std::string& payload_name) {
-  RTC_HISTOGRAM_ENUMERATION("WebRTC.Video.Encoder.CodecType",
+  RTC_HISTOGRAM_ENUMERATION_SPARSE("WebRTC.Video.Encoder.CodecType",
       PayloadNameToHistogramCodecType(payload_name), kVideoMax);
 }
 }  // namespace
 
 
 const int SendStatisticsProxy::kStatsTimeoutMs = 5000;
 
 SendStatisticsProxy::SendStatisticsProxy(
     Clock* clock,
     const VideoSendStream::Config& config,
@@ skipping 20 matching lines @@
 SendStatisticsProxy::UmaSamplesContainer::~UmaSamplesContainer() {
   UpdateHistograms();
 }
 
 void SendStatisticsProxy::UmaSamplesContainer::UpdateHistograms() {
   const int kMinRequiredSamples = 200;
   int in_width = input_width_counter_.Avg(kMinRequiredSamples);
   int in_height = input_height_counter_.Avg(kMinRequiredSamples);
   int in_fps = round(input_frame_rate_tracker_.ComputeTotalRate());
   if (in_width != -1) {
-    RTC_HISTOGRAM_COUNTS_10000(uma_prefix_ + "InputWidthInPixels", in_width);
-    RTC_HISTOGRAM_COUNTS_10000(uma_prefix_ + "InputHeightInPixels", in_height);
-    RTC_HISTOGRAM_COUNTS_100(uma_prefix_ + "InputFramesPerSecond", in_fps);
+    RTC_HISTOGRAM_COUNTS_SPARSE_10000(uma_prefix_ + "InputWidthInPixels",
+                                      in_width);
+    RTC_HISTOGRAM_COUNTS_SPARSE_10000(uma_prefix_ + "InputHeightInPixels",
+                                      in_height);
+    RTC_HISTOGRAM_COUNTS_SPARSE_100(uma_prefix_ + "InputFramesPerSecond",
+                                    in_fps);
   }
   int sent_width = sent_width_counter_.Avg(kMinRequiredSamples);
   int sent_height = sent_height_counter_.Avg(kMinRequiredSamples);
   int sent_fps = round(sent_frame_rate_tracker_.ComputeTotalRate());
   if (sent_width != -1) {
-    RTC_HISTOGRAM_COUNTS_10000(uma_prefix_ + "SentWidthInPixels", sent_width);
-    RTC_HISTOGRAM_COUNTS_10000(uma_prefix_ + "SentHeightInPixels", sent_height);
-    RTC_HISTOGRAM_COUNTS_100(uma_prefix_ + "SentFramesPerSecond", sent_fps);
+    RTC_HISTOGRAM_COUNTS_SPARSE_10000(uma_prefix_ + "SentWidthInPixels",
+                                      sent_width);
+    RTC_HISTOGRAM_COUNTS_SPARSE_10000(uma_prefix_ + "SentHeightInPixels",
+                                      sent_height);
+    RTC_HISTOGRAM_COUNTS_SPARSE_100(uma_prefix_ + "SentFramesPerSecond",
+                                    sent_fps);
   }
   int encode_ms = encode_time_counter_.Avg(kMinRequiredSamples);
   if (encode_ms != -1)
-    RTC_HISTOGRAM_COUNTS_1000(uma_prefix_ + "EncodeTimeInMs", encode_ms);
+    RTC_HISTOGRAM_COUNTS_SPARSE_1000(uma_prefix_ + "EncodeTimeInMs", encode_ms);
 
   int key_frames_permille = key_frame_counter_.Permille(kMinRequiredSamples);
   if (key_frames_permille != -1) {
-    RTC_HISTOGRAM_COUNTS_1000(uma_prefix_ + "KeyFramesSentInPermille",
-                              key_frames_permille);
+    RTC_HISTOGRAM_COUNTS_SPARSE_1000(uma_prefix_ + "KeyFramesSentInPermille",
+                                     key_frames_permille);
   }
   int quality_limited =
       quality_limited_frame_counter_.Percent(kMinRequiredSamples);
   if (quality_limited != -1) {
-    RTC_HISTOGRAM_PERCENTAGE(uma_prefix_ + "QualityLimitedResolutionInPercent",
-                             quality_limited);
+    RTC_HISTOGRAM_PERCENTAGE_SPARSE(
+        uma_prefix_ + "QualityLimitedResolutionInPercent", quality_limited);
   }
   int downscales = quality_downscales_counter_.Avg(kMinRequiredSamples);
   if (downscales != -1) {
-    RTC_HISTOGRAM_ENUMERATION(
+    RTC_HISTOGRAM_ENUMERATION_SPARSE(
         uma_prefix_ + "QualityLimitedResolutionDownscales", downscales, 20);
   }
   int bw_limited = bw_limited_frame_counter_.Percent(kMinRequiredSamples);
   if (bw_limited != -1) {
-    RTC_HISTOGRAM_PERCENTAGE(
+    RTC_HISTOGRAM_PERCENTAGE_SPARSE(
         uma_prefix_ + "BandwidthLimitedResolutionInPercent", bw_limited);
   }
   int num_disabled = bw_resolutions_disabled_counter_.Avg(kMinRequiredSamples);
   if (num_disabled != -1) {
-    RTC_HISTOGRAM_ENUMERATION(
+    RTC_HISTOGRAM_ENUMERATION_SPARSE(
         uma_prefix_ + "BandwidthLimitedResolutionsDisabled", num_disabled, 10);
   }
   int delay_ms = delay_counter_.Avg(kMinRequiredSamples);
   if (delay_ms != -1)
-    RTC_HISTOGRAM_COUNTS_100000(uma_prefix_ + "SendSideDelayInMs", delay_ms);
+    RTC_HISTOGRAM_COUNTS_SPARSE_100000(uma_prefix_ + "SendSideDelayInMs",
+                                       delay_ms);
 
   int max_delay_ms = max_delay_counter_.Avg(kMinRequiredSamples);
   if (max_delay_ms != -1) {
-    RTC_HISTOGRAM_COUNTS_100000(uma_prefix_ + "SendSideDelayMaxInMs",
-                                max_delay_ms);
+    RTC_HISTOGRAM_COUNTS_SPARSE_100000(uma_prefix_ + "SendSideDelayMaxInMs",
+                                       max_delay_ms);
   }
 }
 
 void SendStatisticsProxy::SetContentType(
     VideoEncoderConfig::ContentType content_type) {
   rtc::CritScope lock(&crit_);
   if (content_type_ != content_type) {
     uma_container_->UpdateHistograms();
     uma_container_.reset(new UmaSamplesContainer(GetUmaPrefix(content_type)));
     content_type_ = content_type;
@@ skipping 253 matching lines @@
   return Fraction(min_required_samples, 1000.0f);
 }
 
 int SendStatisticsProxy::BoolSampleCounter::Fraction(
     int min_required_samples, float multiplier) const {
   if (num_samples < min_required_samples || num_samples == 0)
     return -1;
   return static_cast<int>((sum * multiplier / num_samples) + 0.5f);
 }
 }  // namespace webrtc