telemetry: separated stats collection from metrics calculation.

tools/perf/metrics/benchmark_stats.py

+# Copyright (c) 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+def MakeBenchmarkStats(rendering_stats_deltas):

[nduca, 2013/08/09 22:38:57]

How about you make this be a class  with fields.
  self.total_time = rs.blahbllah

and this function is the __init__(...)

Maybe anotehr name too, like GpuRenderingStats?

[ernstm, 2013/08/09 23:37:32]

Done.

+  rs = rendering_stats_deltas
+  bs = {}
+
+  # Scroll Stats
+  bs['total_time'] = rs.get('totalTimeInSeconds', 0)
+  bs['screen_frame_count'] = rs.get('numFramesSentToScreen', 0)
+  bs['dropped_frame_count'] = rs.get('droppedFrameCount', 0)
+  bs['impl_thread_scroll_count'] = rs.get('numImplThreadScrolls', 0)
+  bs['main_thread_scroll_count'] = rs.get('numMainThreadScrolls', 0)
+  bs['drawn_layers_count'] = rs.get('numLayersDrawn', 0)
+  bs['missing_tile_count'] = rs.get('numMissingTiles', 0)
+
+  # Texture Upload Stats
+  bs['texture_upload_count'] = rs.get('textureUploadCount', 0)
+  bs['texture_upload_time'] = rs.get('totalTextureUploadTimeInSeconds', 0)
+  bs['commit_count'] = rs.get('totalCommitCount', 0)
+  bs['commit_time'] = rs.get('totalCommitTimeInSeconds', 0)
+
+  # Image Decoding Stats
+  bs['deferred_image_decode_count'] = rs.get('totalDeferredImageDecodeCount', 0)
+  bs['deferred_image_decode_time'] = rs.get(
+      'totalDeferredImageDecodeTimeInSeconds', 0)
+  bs['deferred_image_cache_hits'] = rs.get('totalDeferredImageCacheHitCount', 0)
+  bs['image_gathering_count'] = rs.get('totalImageGatheringCount', 0)
+  bs['image_gathering_time'] = rs.get('totalImageGatheringTimeInSeconds', 0)
+
+  # Tile Analysis Stats
+  bs['tile_analysis_count'] = rs.get('totalTilesAnalyzed', 0)
+  bs['tile_analysis_time'] = rs.get('totalTileAnalysisTimeInSeconds', 0)
+  bs['solid_color_tile_analysis_count'] = rs.get('solidColorTilesAnalyzed', 0)
+
+  # Latency Stats
+  bs['input_event_count'] = rs.get('inputEventCount', 0)
+  bs['input_event_latency'] = rs.get('totalInputLatency', 0)
+  bs['touch_ui_count'] = rs.get('touchUICount', 0)
+  bs['touch_ui_latency'] = rs.get('totalTouchUILatency', 0)
+  bs['touch_acked_count'] = rs.get('touchAckedCount', 0)
+  bs['touch_acked_latency'] = rs.get('totalTouchAckedLatency', 0)
+  bs['scroll_update_count'] = rs.get('scrollUpdateCount', 0)
+  bs['scroll_update_latency'] = rs.get('totalScrollUpdateLatency', 0)
+
+  return bs