diff options
| -rw-r--r-- | chrome/renderer/render_view.cc | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/chrome/renderer/render_view.cc b/chrome/renderer/render_view.cc index d025815..1b5d9e3 100644 --- a/chrome/renderer/render_view.cc +++ b/chrome/renderer/render_view.cc @@ -5208,6 +5208,60 @@ void RenderView::DumpLoadHistograms() const { "PLT.BeginToFinishDoc_LinkLoad", "CacheSize"), begin_to_finish_doc); } + // Histograms to determine if cache throttling has an impact on PLT. + static bool use_cache_histogram2(FieldTrialList::Find("CacheThrottle") && + !FieldTrialList::Find("CacheThrottle")->group_name().empty()); + if (use_cache_histogram2) { + UMA_HISTOGRAM_ENUMERATION( + FieldTrial::MakeName("PLT.Abandoned", "CacheThrottle"), + abandoned_page ? 1 : 0, 2); + switch (load_type) { + case NavigationState::RELOAD: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_Reload", "CacheThrottle"), + begin_to_finish_all_loads); + break; + case NavigationState::HISTORY_LOAD: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_HistoryLoad", "CacheThrottle"), + begin_to_finish_all_loads); + break; + case NavigationState::NORMAL_LOAD: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_NormalLoad", "CacheThrottle"), + begin_to_finish_all_loads); + break; + case NavigationState::LINK_LOAD_NORMAL: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_LinkLoadNormal", "CacheThrottle"), + begin_to_finish_all_loads); + break; + case NavigationState::LINK_LOAD_RELOAD: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_LinkLoadReload", "CacheThrottle"), + begin_to_finish_all_loads); + break; + case NavigationState::LINK_LOAD_CACHE_STALE_OK: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_LinkLoadStaleOk", "CacheThrottle"), + begin_to_finish_all_loads); + break; + case NavigationState::LINK_LOAD_CACHE_ONLY: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_LinkLoadCacheOnly", "CacheThrottle"), + begin_to_finish_all_loads); + break; + default: + break; + } + if (NavigationState::RELOAD <= load_type && + NavigationState::LINK_LOAD_CACHE_ONLY >= load_type) { + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish", "CacheThrottle"), + begin_to_finish_all_loads); + } + } + // For the SPDY field trials, we need to verify that the page loaded was // the type we requested: // if we asked for a SPDY request, we got a SPDY request |