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| author | jar@chromium.org <jar@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-01-18 06:45:45 +0000 |
|---|---|---|
| committer | jar@chromium.org <jar@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-01-18 06:45:45 +0000 |
| commit | 145eeb2d81d560a2b972bbbf83a81e9e9e4efb17 (patch) | |
| tree | 4824886c5f4e14bb3e68881b91a4c334a6af24c6 /chrome | |
| parent | 7a90e3703cc89cfff95ef58d7647402a5edad3e3 (diff) | |
| download | chromium_src-145eeb2d81d560a2b972bbbf83a81e9e9e4efb17.zip chromium_src-145eeb2d81d560a2b972bbbf83a81e9e9e4efb17.tar.gz chromium_src-145eeb2d81d560a2b972bbbf83a81e9e9e4efb17.tar.bz2 | |
Change default congestion limit for DNS preresolution
UMA data suggests that a 500ms limit on queue duration
(before assuming congestion) provides better user
experience. This change sets 500ms as the default,
and reduces the percentage of users that have other
experimental values.
BUG=3041,15479
r=eroman
Review URL: http://codereview.chromium.org/543083
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@36489 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome')
| -rw-r--r-- | chrome/browser/net/dns_global.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/chrome/browser/net/dns_global.cc b/chrome/browser/net/dns_global.cc index 916f307..082f423 100644 --- a/chrome/browser/net/dns_global.cc +++ b/chrome/browser/net/dns_global.cc @@ -45,7 +45,7 @@ static void DnsPrefetchMotivatedList( const size_t DnsGlobalInit::kMaxPrefetchConcurrentLookups = 8; // static -const int DnsGlobalInit::kMaxPrefetchQueueingDelayMs = 1000; +const int DnsGlobalInit::kMaxPrefetchQueueingDelayMs = 500; // Host resolver shared by DNS prefetcher, and the main URLRequestContext. static net::HostResolver* global_host_resolver = NULL; @@ -621,7 +621,7 @@ DnsGlobalInit::DnsGlobalInit(PrefService* user_prefs, // latency of page loads. FieldTrial::Probability kDivisor = 100; // For each option (i.e., non-default), we have a fixed probability. - FieldTrial::Probability kProbabilityPerGroup = 10; // 10% probability. + FieldTrial::Probability kProbabilityPerGroup = 3; // 3% probability. trial_ = new FieldTrial("DnsImpact", kDivisor); |