{"action":"created","issue":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/39247","repository_url":"https://api.github.com/repos/kubernetes/kubernetes","labels_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/39247/labels{/name}","comments_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/39247/comments","events_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/39247/events","html_url":"https://github.com/kubernetes/kubernetes/pull/39247","id":197713645,"number":39247,"title":"Avoid unnecessary memory allocations","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":[{"id":477397086,"url":"https://api.github.com/repos/kubernetes/kubernetes/labels/cncf-cla:%20yes","name":"cncf-cla: yes","color":"bfe5bf","default":false},{"id":349530249,"url":"https://api.github.com/repos/kubernetes/kubernetes/labels/release-note-none","name":"release-note-none","color":"c2e0c6","default":false},{"id":125010198,"url":"https://api.github.com/repos/kubernetes/kubernetes/labels/sig/scalability","name":"sig/scalability","color":"d2b48c","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":4,"created_at":"2016-12-27T14:53:56Z","updated_at":"2016-12-27T14:58:52Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/39247","html_url":"https://github.com/kubernetes/kubernetes/pull/39247","diff_url":"https://github.com/kubernetes/kubernetes/pull/39247.diff","patch_url":"https://github.com/kubernetes/kubernetes/pull/39247.patch"},"body":"Low-hanging fruits in saving memory allocations. During our 5000-node kubemark runs I've see this:\r\n\r\nControllerManager:\r\n- 40.17% k8s.io/kubernetes/pkg/util/system.IsMasterNode\r\n- 19.04% k8s.io/kubernetes/pkg/controller.(*PodControllerRefManager).Classify\r\n\r\nScheduler:\r\n- 42.74% k8s.io/kubernetes/plugin/pkg/scheduler/algrorithm/predicates.(*MaxPDVolumeCountChecker).filterVolumes\r\n\r\nThis PR is eliminating all of those."},"comment":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/comments/269336569","html_url":"https://github.com/kubernetes/kubernetes/pull/39247#issuecomment-269336569","issue_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/39247","id":269336569,"user":{"login":"k8s-ci-robot","id":20407524,"avatar_url":"https://avatars.githubusercontent.com/u/20407524?v=3","gravatar_id":"","url":"https://api.github.com/users/k8s-ci-robot","html_url":"https://github.com/k8s-ci-robot","followers_url":"https://api.github.com/users/k8s-ci-robot/followers","following_url":"https://api.github.com/users/k8s-ci-robot/following{/other_user}","gists_url":"https://api.github.com/users/k8s-ci-robot/gists{/gist_id}","starred_url":"https://api.github.com/users/k8s-ci-robot/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/k8s-ci-robot/subscriptions","organizations_url":"https://api.github.com/users/k8s-ci-robot/orgs","repos_url":"https://api.github.com/users/k8s-ci-robot/repos","events_url":"https://api.github.com/users/k8s-ci-robot/events{/privacy}","received_events_url":"https://api.github.com/users/k8s-ci-robot/received_events","type":"User","site_admin":false},"created_at":"2016-12-27T14:58:52Z","updated_at":"2016-12-27T14:58:52Z","body":"Jenkins Kubemark GCE e2e [**failed**](https://k8s-gubernator.appspot.com/build/kubernetes-jenkins/pr-logs/pull/39247/pull-kubernetes-kubemark-e2e-gce/10808/) for commit ed13a900593bb71b20a992d83cffedf9286c18c3. [Full PR test history](http://pr-test.k8s.io/39247).\n\nThe magic incantation to run this job again is `@k8s-bot kubemark e2e test this`. Please help us cut down flakes by linking to an [open flake issue](https://github.com/kubernetes/kubernetes/issues?q=is:issue+label:kind/flake+is:open) when you hit one in your PR."}}
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