{"action":"created","issue":{"url":"https://api.github.com/repos/docker/docker/issues/19981","repository_url":"https://api.github.com/repos/docker/docker","labels_url":"https://api.github.com/repos/docker/docker/issues/19981/labels{/name}","comments_url":"https://api.github.com/repos/docker/docker/issues/19981/comments","events_url":"https://api.github.com/repos/docker/docker/issues/19981/events","html_url":"https://github.com/docker/docker/issues/19981","id":131156755,"number":19981,"title":"Linear performance degradation as #networks  increases ","user":{"login":"ezrasilvera","id":13567561,"avatar_url":"https://avatars.githubusercontent.com/u/13567561?v=3","gravatar_id":"","url":"https://api.github.com/users/ezrasilvera","html_url":"https://github.com/ezrasilvera","followers_url":"https://api.github.com/users/ezrasilvera/followers","following_url":"https://api.github.com/users/ezrasilvera/following{/other_user}","gists_url":"https://api.github.com/users/ezrasilvera/gists{/gist_id}","starred_url":"https://api.github.com/users/ezrasilvera/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ezrasilvera/subscriptions","organizations_url":"https://api.github.com/users/ezrasilvera/orgs","repos_url":"https://api.github.com/users/ezrasilvera/repos","events_url":"https://api.github.com/users/ezrasilvera/events{/privacy}","received_events_url":"https://api.github.com/users/ezrasilvera/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/docker/docker/labels/group/networking","name":"group/networking","color":"F6FBFF"},{"url":"https://api.github.com/repos/docker/docker/labels/kind/performance","name":"kind/performance","color":"006b75"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":11,"created_at":"2016-02-03T21:18:09Z","updated_at":"2016-05-05T17:53:44Z","closed_at":null,"body":"As part of Swarm testing I performed a comparison test to measure the network creation time done directly on the Docker engine.\r\nIt seems that the Docker engine itself has some linear increasing overhead when creating a network (I was using overlay networks). This seems like a significant overhead especially now that we can have hundreds of networks on the system.\r\nWhile this is related to creating a network, I also noticed that the # of networks impacts other operations like create container, deleet network, etc..\r\n![engine_nw](https://cloud.githubusercontent.com/assets/13567561/12797324/0c402862-cacc-11e5-996c-1b5c1aba0dd2.png)\r\n"},"comment":{"url":"https://api.github.com/repos/docker/docker/issues/comments/217225485","html_url":"https://github.com/docker/docker/issues/19981#issuecomment-217225485","issue_url":"https://api.github.com/repos/docker/docker/issues/19981","id":217225485,"user":{"login":"estesp","id":1397980,"avatar_url":"https://avatars.githubusercontent.com/u/1397980?v=3","gravatar_id":"","url":"https://api.github.com/users/estesp","html_url":"https://github.com/estesp","followers_url":"https://api.github.com/users/estesp/followers","following_url":"https://api.github.com/users/estesp/following{/other_user}","gists_url":"https://api.github.com/users/estesp/gists{/gist_id}","starred_url":"https://api.github.com/users/estesp/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/estesp/subscriptions","organizations_url":"https://api.github.com/users/estesp/orgs","repos_url":"https://api.github.com/users/estesp/repos","events_url":"https://api.github.com/users/estesp/events{/privacy}","received_events_url":"https://api.github.com/users/estesp/received_events","type":"User","site_admin":false},"created_at":"2016-05-05T17:53:43Z","updated_at":"2016-05-05T17:53:43Z","body":"Something strange is going on with list; not sure what yet. See #22322"}}