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| author | jar@chromium.org <jar@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-10-15 16:42:45 +0000 |
|---|---|---|
| committer | jar@chromium.org <jar@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-10-15 16:42:45 +0000 |
| commit | 1e9bbd23e23395eb4d0566b768452f90530de638 (patch) | |
| tree | d2c683d76c9bf3648f994f0d8f50b694d4784024 /chrome | |
| parent | a0c5e4b399d66df2704533d1ffbdd1516744367f (diff) | |
| download | chromium_src-1e9bbd23e23395eb4d0566b768452f90530de638.zip chromium_src-1e9bbd23e23395eb4d0566b768452f90530de638.tar.gz chromium_src-1e9bbd23e23395eb4d0566b768452f90530de638.tar.bz2 | |
Add performance histograms to resolver, asong with A/B test
I'm doing tests to see what the impact of changing the
speculative resolution system parameters is on
resolution time. By default, the speculative system
limits itself to no more than 8 pending resolutions
at any time, and this test looks at 6, 4, and 2
as limits.
It also modulates the speculative congestion avoidance
system, which purges the speculative queue when there is
too much resolution latency, and tries various durations
of time. (the latter was less important... but was already
part of this existing A/B test.)
I also pushed the test rates up to 10% for each case, so
that we'd get data from the canary and/or dev builds.
r=eroman
Review URL: http://codereview.chromium.org/3762006
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@62746 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome')
| -rw-r--r-- | chrome/browser/net/predictor_api.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/chrome/browser/net/predictor_api.cc b/chrome/browser/net/predictor_api.cc index a1270dc..9149095 100644 --- a/chrome/browser/net/predictor_api.cc +++ b/chrome/browser/net/predictor_api.cc @@ -508,7 +508,7 @@ PredictorInit::PredictorInit(PrefService* user_prefs, // latency of page loads. base::FieldTrial::Probability kDivisor = 1000; // For each option (i.e., non-default), we have a fixed probability. - base::FieldTrial::Probability kProbabilityPerGroup = 1; // 0.1% probability. + base::FieldTrial::Probability kProbabilityPerGroup = 100; // 10% probability. trial_ = new base::FieldTrial("DnsImpact", kDivisor); |