{"action":"created","issue":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/35194","repository_url":"https://api.github.com/repos/kubernetes/kubernetes","labels_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/35194/labels{/name}","comments_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/35194/comments","events_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/35194/events","html_url":"https://github.com/kubernetes/kubernetes/pull/35194","id":184204360,"number":35194,"title":"Optimize label selector","user":{"login":"wojtek-t","id":10743879,"avatar_url":"https://avatars.githubusercontent.com/u/10743879?v=3","gravatar_id":"","url":"https://api.github.com/users/wojtek-t","html_url":"https://github.com/wojtek-t","followers_url":"https://api.github.com/users/wojtek-t/followers","following_url":"https://api.github.com/users/wojtek-t/following{/other_user}","gists_url":"https://api.github.com/users/wojtek-t/gists{/gist_id}","starred_url":"https://api.github.com/users/wojtek-t/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wojtek-t/subscriptions","organizations_url":"https://api.github.com/users/wojtek-t/orgs","repos_url":"https://api.github.com/users/wojtek-t/repos","events_url":"https://api.github.com/users/wojtek-t/events{/privacy}","received_events_url":"https://api.github.com/users/wojtek-t/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/kubernetes/kubernetes/labels/area/performance","name":"area/performance","color":"d4c5f9"},{"url":"https://api.github.com/repos/kubernetes/kubernetes/labels/cla:%20yes","name":"cla: yes","color":"bfe5bf"},{"url":"https://api.github.com/repos/kubernetes/kubernetes/labels/release-note-none","name":"release-note-none","color":"c2e0c6"},{"url":"https://api.github.com/repos/kubernetes/kubernetes/labels/size/M","name":"size/M","color":"eebb00"}],"state":"open","locked":false,"assignee":{"login":"gmarek","id":1703842,"avatar_url":"https://avatars.githubusercontent.com/u/1703842?v=3","gravatar_id":"","url":"https://api.github.com/users/gmarek","html_url":"https://github.com/gmarek","followers_url":"https://api.github.com/users/gmarek/followers","following_url":"https://api.github.com/users/gmarek/following{/other_user}","gists_url":"https://api.github.com/users/gmarek/gists{/gist_id}","starred_url":"https://api.github.com/users/gmarek/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gmarek/subscriptions","organizations_url":"https://api.github.com/users/gmarek/orgs","repos_url":"https://api.github.com/users/gmarek/repos","events_url":"https://api.github.com/users/gmarek/events{/privacy}","received_events_url":"https://api.github.com/users/gmarek/received_events","type":"User","site_admin":false},"assignees":[{"login":"gmarek","id":1703842,"avatar_url":"https://avatars.githubusercontent.com/u/1703842?v=3","gravatar_id":"","url":"https://api.github.com/users/gmarek","html_url":"https://github.com/gmarek","followers_url":"https://api.github.com/users/gmarek/followers","following_url":"https://api.github.com/users/gmarek/following{/other_user}","gists_url":"https://api.github.com/users/gmarek/gists{/gist_id}","starred_url":"https://api.github.com/users/gmarek/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gmarek/subscriptions","organizations_url":"https://api.github.com/users/gmarek/orgs","repos_url":"https://api.github.com/users/gmarek/repos","events_url":"https://api.github.com/users/gmarek/events{/privacy}","received_events_url":"https://api.github.com/users/gmarek/received_events","type":"User","site_admin":false}],"milestone":null,"comments":3,"created_at":"2016-10-20T11:30:54Z","updated_at":"2016-10-20T12:03:10Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/35194","html_url":"https://github.com/kubernetes/kubernetes/pull/35194","diff_url":"https://github.com/kubernetes/kubernetes/pull/35194.diff","patch_url":"https://github.com/kubernetes/kubernetes/pull/35194.patch"},"body":"The number of values for a given label is generally pretty small (in huge majority of cases it is exactly one value).\r\nCurrently computing selectors is up to 50% of CPU usage in both apiserver and scheduler.\r\n\r\nChanging the structure in which those values are stored from map to slice improves the performance of typical usecase for computing selectors.\r\n\r\nEarly results:\r\n- scheduler throughput it ~15% higher\r\n- apiserver cpu-usage is also lower (seems to be also ~10-15%)\n\n<!-- Reviewable:start -->\n---\nThis change is [<img src=\"https://reviewable.kubernetes.io/review_button.svg\" height=\"34\" align=\"absmiddle\" alt=\"Reviewable\"/>](https://reviewable.kubernetes.io/reviews/kubernetes/kubernetes/35194)\n<!-- Reviewable:end -->\n"},"comment":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/comments/255086753","html_url":"https://github.com/kubernetes/kubernetes/pull/35194#issuecomment-255086753","issue_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/35194","id":255086753,"user":{"login":"k8s-merge-robot","id":13653959,"avatar_url":"https://avatars.githubusercontent.com/u/13653959?v=3","gravatar_id":"","url":"https://api.github.com/users/k8s-merge-robot","html_url":"https://github.com/k8s-merge-robot","followers_url":"https://api.github.com/users/k8s-merge-robot/followers","following_url":"https://api.github.com/users/k8s-merge-robot/following{/other_user}","gists_url":"https://api.github.com/users/k8s-merge-robot/gists{/gist_id}","starred_url":"https://api.github.com/users/k8s-merge-robot/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/k8s-merge-robot/subscriptions","organizations_url":"https://api.github.com/users/k8s-merge-robot/orgs","repos_url":"https://api.github.com/users/k8s-merge-robot/repos","events_url":"https://api.github.com/users/k8s-merge-robot/events{/privacy}","received_events_url":"https://api.github.com/users/k8s-merge-robot/received_events","type":"User","site_admin":false},"created_at":"2016-10-20T12:03:10Z","updated_at":"2016-10-20T12:03:10Z","body":"Labelling this PR as size/M"}}
{"actor":{"display_login":"k8s-merge-robot"}}