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| author | ziadh@chromium.org <ziadh@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-06-21 18:46:00 +0000 |
|---|---|---|
| committer | ziadh@chromium.org <ziadh@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-06-21 18:46:00 +0000 |
| commit | 241c5c2c0e223f9bf3f5f38661d21c0a46bdfe59 (patch) | |
| tree | eb7b4d038bb311c094b3d882e4ac9ec52876bb5a /chrome/renderer | |
| parent | 8974e04c6ef2c9fe849e17a4b2224d1b51f4001c (diff) | |
| download | chromium_src-241c5c2c0e223f9bf3f5f38661d21c0a46bdfe59.zip chromium_src-241c5c2c0e223f9bf3f5f38661d21c0a46bdfe59.tar.gz chromium_src-241c5c2c0e223f9bf3f5f38661d21c0a46bdfe59.tar.bz2 | |
A/B test for determining a value for unused socket timeout. Currently the
timeout defaults to 10 seconds. Having this value set too low won't allow us
to take advantage of idle sockets. Setting it to too high could possibly
result in more ERR_CONNECT_RESETs, requiring one RTT to receive the RST packet
and possibly another RTT to re-establish the connection.
r=jar
Review URL: http://codereview.chromium.org/2827016
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@50364 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome/renderer')
| -rwxr-xr-x | chrome/renderer/render_view.cc | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/chrome/renderer/render_view.cc b/chrome/renderer/render_view.cc index a8d5ab2..693746f 100755 --- a/chrome/renderer/render_view.cc +++ b/chrome/renderer/render_view.cc @@ -4637,6 +4637,40 @@ void RenderView::DumpLoadHistograms() const { } } + + static bool use_idle_socket_timeout_histogram( + FieldTrialList::Find("IdleSktToImpact") && + !FieldTrialList::Find("IdleSktToImpact")->group_name().empty()); + if (use_idle_socket_timeout_histogram) { + UMA_HISTOGRAM_ENUMERATION( + FieldTrial::MakeName("PLT.Abandoned", "IdleSktToImpact"), + abandoned_page ? 1 : 0, 2); + switch (load_type) { + case NavigationState::NORMAL_LOAD: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_NormalLoad", "IdleSktToImpact"), + begin_to_finish); + break; + case NavigationState::LINK_LOAD_NORMAL: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_LinkLoadNormal", "IdleSktToImpact"), + begin_to_finish); + break; + case NavigationState::LINK_LOAD_RELOAD: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_LinkLoadReload", "IdleSktToImpact"), + begin_to_finish); + break; + case NavigationState::LINK_LOAD_CACHE_STALE_OK: + PLT_HISTOGRAM(FieldTrial::MakeName( + "PLT.BeginToFinish_LinkLoadStaleOk", "IdleSktToImpact"), + begin_to_finish); + break; + default: + break; + } + } + // Histograms to determine if SDCH has an impact. // TODO(jar): Consider removing per-link load types and the enumeration. static bool use_sdch_histogram(FieldTrialList::Find("GlobalSdch") && |