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| author | jar@chromium.org <jar@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-04-24 21:00:02 +0000 |
|---|---|---|
| committer | jar@chromium.org <jar@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-04-24 21:00:02 +0000 |
| commit | b344394d96c3917f193c142d0c16fc846b224ccc (patch) | |
| tree | 27c55fb12d0950d760dfbdae7e4c53c7f44072fe /net | |
| parent | 5206a4d36498b8a4aa3b3ca33dc6f12dcb820fd3 (diff) | |
| download | chromium_src-b344394d96c3917f193c142d0c16fc846b224ccc.zip chromium_src-b344394d96c3917f193c142d0c16fc846b224ccc.tar.gz chromium_src-b344394d96c3917f193c142d0c16fc846b224ccc.tar.bz2 | |
Add SDCH histogram to help detected delayed acks
SDCH might compress so well, that the return of the ack
may come late, and a server may stall on a congestion
window limitation. This set of histograms is intended
to track that issue during SDCH experimentation.
r=huanr
Review URL: http://codereview.chromium.org/92139
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@14468 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'net')
| -rw-r--r-- | net/base/sdch_filter.cc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/base/sdch_filter.cc b/net/base/sdch_filter.cc index 216e688..3ff78b5 100644 --- a/net/base/sdch_filter.cc +++ b/net/base/sdch_filter.cc @@ -112,6 +112,14 @@ SdchFilter::~SdchFilter() { base::TimeDelta::FromMilliseconds(20), base::TimeDelta::FromMinutes(10), 100); if (read_times_.size() > 4) { + UMA_HISTOGRAM_CLIPPED_TIMES("Sdch.Network_Decode_1st_To_2nd_b", + read_times_[1] - read_times_[0], + base::TimeDelta::FromMilliseconds(10), + base::TimeDelta::FromSeconds(3), 100); + UMA_HISTOGRAM_CLIPPED_TIMES("Sdch.Network_Decode_2nd_To_3rd_b", + read_times_[2] - read_times_[1], + base::TimeDelta::FromMilliseconds(10), + base::TimeDelta::FromSeconds(3), 100); UMA_HISTOGRAM_CLIPPED_TIMES("Sdch.Network_Decode_3rd_To_4th_b", read_times_[3] - read_times_[2], base::TimeDelta::FromMilliseconds(10), @@ -139,6 +147,14 @@ SdchFilter::~SdchFilter() { base::TimeDelta::FromMilliseconds(20), base::TimeDelta::FromMinutes(10), 100); if (read_times_.size() > 4) { + UMA_HISTOGRAM_CLIPPED_TIMES("Sdch.Network_Pass-through_1st_To_2nd_b", + read_times_[1] - read_times_[0], + base::TimeDelta::FromMilliseconds(10), + base::TimeDelta::FromSeconds(3), 100); + UMA_HISTOGRAM_CLIPPED_TIMES("Sdch.Network_Pass-through_2nd_To_3rd_b", + read_times_[2] - read_times_[1], + base::TimeDelta::FromMilliseconds(10), + base::TimeDelta::FromSeconds(3), 100); UMA_HISTOGRAM_CLIPPED_TIMES("Sdch.Network_Pass-through_3rd_To_4th_b", read_times_[3] - read_times_[2], base::TimeDelta::FromMilliseconds(10), |