20931 2008-09-19 00:18:24 -0700 DNS prefetch when the user mouses over a hyperlink 2008-09-20 23:29:50 -0700 1 1 1 Unclassified WebKit WebCore Misc. 528+ (Nightly build) All All RESOLVED FIXED P2 Normal --- 1 collinj collinj eric jar koivisto mrowe oldest_to_newest 91737 0 collinj 2008-09-19 00:18:24 -0700 Currently we're calling prefetchDNS on links in the page during load time only. However, many DNS entries have a short TTL and the response may expire while the user is viewing the page. If the user then tries to navigate by clicking on a hyperlink, the browser will have to do a new DNS lookup and must wait for the response before it can load the URL. To reduce perceived latency due to expired DNS entries, we can re-prefetch the hostnames of links when the user mouses over them. (Web sites can control this behavior via the DNS prefetch control mechanism.) 91740 1 23558 collinj 2008-09-19 00:37:22 -0700 Created attachment 23558 Proposed patch 91855 2 23558 sam 2008-09-19 19:24:13 -0700 Comment on attachment 23558 Proposed patch Cool. r=me 91970 3 collinj 2008-09-20 23:29:50 -0700 Landed in r36730 23558 2008-09-19 00:37:22 -0700 2008-09-19 19:24:13 -0700 Proposed patch dns-prefetch4.patch text/plain 1371 collinj SW5kZXg6IFdlYkNvcmUvQ2hhbmdlTG9nCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFdlYkNvcmUvQ2hhbmdlTG9n CShyZXZpc2lvbiAzNjY2MikKKysrIFdlYkNvcmUvQ2hhbmdlTG9nCSh3b3JraW5nIGNvcHkpCkBA IC0xLDMgKzEsMTQgQEAKKzIwMDgtMDktMTggIENvbGxpbiBKYWNrc29uICA8Y29sbGluakB3ZWJr aXQub3JnPgorCisgICAgICAgIFByZWZldGNoIEROUyBmb3IgaHlwZXJsaW5rcyB0aGF0IHRoZSB1 c2VyIG1vdXNlcyBvdmVyLgorCQorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93 X2J1Zy5jZ2k/aWQ9MjA5MzEKKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4K KworICAgICAgICAqIHBhZ2UvQ2hyb21lLmNwcDoKKyAgICAgICAgKFdlYkNvcmU6OkNocm9tZTo6 bW91c2VEaWRNb3ZlT3ZlckVsZW1lbnQpOgorCiAyMDA4LTA5LTE4ICBEYXJpbiBBZGxlciAgPGRh cmluQGFwcGxlLmNvbT4KIAogICAgICAgICBSZXZpZXdlZCBieSBNYWNpZWogU3RhY2hvd2lhay4K SW5kZXg6IFdlYkNvcmUvcGFnZS9DaHJvbWUuY3BwCj09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFdlYkNvcmUvcGFn ZS9DaHJvbWUuY3BwCShyZXZpc2lvbiAzNjY2MikKKysrIFdlYkNvcmUvcGFnZS9DaHJvbWUuY3Bw CSh3b3JraW5nIGNvcHkpCkBAIC0yMiw2ICsyMiw4IEBACiAjaW5jbHVkZSAiQ2hyb21lLmgiCiAK ICNpbmNsdWRlICJDaHJvbWVDbGllbnQuaCIKKyNpbmNsdWRlICJETlMuaCIKKyNpbmNsdWRlICJE b2N1bWVudC5oIgogI2luY2x1ZGUgIkZsb2F0UmVjdC5oIgogI2luY2x1ZGUgIkZyYW1lLmgiCiAj aW5jbHVkZSAiRnJhbWVUcmVlLmgiCkBAIC0zMDgsNiArMzEwLDExIEBAIHZvaWQgQ2hyb21lOjp1 cGRhdGVCYWNraW5nU3RvcmUoKQogCiB2b2lkIENocm9tZTo6bW91c2VEaWRNb3ZlT3ZlckVsZW1l bnQoY29uc3QgSGl0VGVzdFJlc3VsdCYgcmVzdWx0LCB1bnNpZ25lZCBtb2RpZmllckZsYWdzKQog eworICAgIGlmIChyZXN1bHQuaW5uZXJOb2RlKCkpIHsKKyAgICAgICAgRG9jdW1lbnQqIGRvY3Vt ZW50ID0gcmVzdWx0LmlubmVyTm9kZSgpLT5kb2N1bWVudCgpOworICAgICAgICBpZiAoZG9jdW1l bnQgJiYgZG9jdW1lbnQtPmlzRE5TUHJlZmV0Y2hFbmFibGVkKCkpCisgICAgICAgICAgICBwcmVm ZXRjaEROUyhyZXN1bHQuYWJzb2x1dGVMaW5rVVJMKCkuaG9zdCgpKTsKKyAgICB9CiAgICAgbV9j bGllbnQtPm1vdXNlRGlkTW92ZU92ZXJFbGVtZW50KHJlc3VsdCwgbW9kaWZpZXJGbGFncyk7CiB9 CiAK