{"action":"created","issue":{"url":"https://api.github.com/repos/docker/docker/issues/17994","labels_url":"https://api.github.com/repos/docker/docker/issues/17994/labels{/name}","comments_url":"https://api.github.com/repos/docker/docker/issues/17994/comments","events_url":"https://api.github.com/repos/docker/docker/issues/17994/events","html_url":"https://github.com/docker/docker/issues/17994","id":117003213,"number":17994,"title":"huge php performance drop after upgrade to 1.9","user":{"login":"greg0ire","id":657779,"avatar_url":"https://avatars.githubusercontent.com/u/657779?v=3","gravatar_id":"","url":"https://api.github.com/users/greg0ire","html_url":"https://github.com/greg0ire","followers_url":"https://api.github.com/users/greg0ire/followers","following_url":"https://api.github.com/users/greg0ire/following{/other_user}","gists_url":"https://api.github.com/users/greg0ire/gists{/gist_id}","starred_url":"https://api.github.com/users/greg0ire/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/greg0ire/subscriptions","organizations_url":"https://api.github.com/users/greg0ire/orgs","repos_url":"https://api.github.com/users/greg0ire/repos","events_url":"https://api.github.com/users/greg0ire/events{/privacy}","received_events_url":"https://api.github.com/users/greg0ire/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":5,"created_at":"2015-11-15T16:46:33Z","updated_at":"2015-11-15T16:54:58Z","closed_at":null,"body":"Since I upgraded to docker 1.9, I have noticed a huge performance drop when running php in a container of mine.\r\n\r\nSteps to reproduce : \r\n\r\n```\r\ndocker run -it greg0ire/php /bin/bash\r\ntime php -r \"phpinfo();\"\r\n```\r\n\r\nExpected results: instant output\r\n\r\nActual results : \r\n```\r\nreal\t0m3.476s\r\nuser\t0m0.057s\r\nsys\t0m0.045s\r\n```\r\n\r\nHere is [the dockerfile](https://hub.docker.com/r/greg0ire/php/~/dockerfile/)\r\n\r\nI'm running docker 1.9 on Fedora 23, and I had no choice but to use the *testing* repository for F23 to do that (the main repo does not exist yet, it seems). I am using 1.9.1-rc1. I first observed the problem at work, on an Ubuntu 15.04\r\n\r\n```\r\ndocker version\r\nClient:\r\n Version:      1.9.1-rc1\r\n API version:  1.21\r\n Go version:   go1.5.1\r\n Git commit:   aba5981\r\n Built:        Fri Nov 13 10:13:53 UTC 2015\r\n OS/Arch:      linux/amd64\r\n\r\nServer:\r\n Version:      1.9.1-rc1\r\n API version:  1.21\r\n Go version:   go1.5.1\r\n Git commit:   aba5981\r\n Built:        Fri Nov 13 10:13:53 UTC 2015\r\n OS/Arch:      linux/amd64\r\n\r\n```\r\n\r\n```\r\nContainers: 121\r\nImages: 294\r\nServer Version: 1.9.1-rc1\r\nStorage Driver: devicemapper\r\n Pool Name: docker-253:1-24248323-pool\r\n Pool Blocksize: 65.54 kB\r\n Base Device Size: 10.74 GB\r\n Backing Filesystem: extfs\r\n Data file: /dev/loop0\r\n Metadata file: /dev/loop1\r\n Data Space Used: 8.758 GB\r\n Data Space Total: 107.4 GB\r\n Data Space Available: 98.62 GB\r\n Metadata Space Used: 18.76 MB\r\n Metadata Space Total: 2.147 GB\r\n Metadata Space Available: 2.129 GB\r\n Udev Sync Supported: true\r\n Deferred Removal Enabled: false\r\n Deferred Deletion Enabled: false\r\n Deferred Deleted Device Count: 0\r\n Data loop file: /mnt/data/disposable/docker/devicemapper/devicemapper/data\r\n Metadata loop file: /mnt/data/disposable/docker/devicemapper/devicemapper/metadata\r\n Library Version: 1.02.107 (2015-09-05)\r\nExecution Driver: native-0.2\r\nLogging Driver: json-file\r\nKernel Version: 4.2.5-300.fc23.x86_64\r\nOperating System: Fedora 23 (Workstation Edition)\r\nCPUs: 2\r\nTotal Memory: 3.86 GiB\r\nName: liche\r\nID: TEF4:LIQK:IENW:K2GR:VZWU:ZPHC:FIWU:4BEF:3MQK:ZETW:PMTZ:CDJ6\r\nUsername: greg0ire\r\nRegistry: https://index.docker.io/v1/\r\n```\r\n\r\nKernel info : \r\n\r\n```\r\nuname -a\r\nLinux liche 4.2.5-300.fc23.x86_64 #1 SMP Tue Oct 27 04:29:56 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux\r\n```"},"comment":{"url":"https://api.github.com/repos/docker/docker/issues/comments/156828943","html_url":"https://github.com/docker/docker/issues/17994#issuecomment-156828943","issue_url":"https://api.github.com/repos/docker/docker/issues/17994","id":156828943,"user":{"login":"greg0ire","id":657779,"avatar_url":"https://avatars.githubusercontent.com/u/657779?v=3","gravatar_id":"","url":"https://api.github.com/users/greg0ire","html_url":"https://github.com/greg0ire","followers_url":"https://api.github.com/users/greg0ire/followers","following_url":"https://api.github.com/users/greg0ire/following{/other_user}","gists_url":"https://api.github.com/users/greg0ire/gists{/gist_id}","starred_url":"https://api.github.com/users/greg0ire/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/greg0ire/subscriptions","organizations_url":"https://api.github.com/users/greg0ire/orgs","repos_url":"https://api.github.com/users/greg0ire/repos","events_url":"https://api.github.com/users/greg0ire/events{/privacy}","received_events_url":"https://api.github.com/users/greg0ire/received_events","type":"User","site_admin":false},"created_at":"2015-11-15T16:54:58Z","updated_at":"2015-11-15T16:54:58Z","body":"Thanks, I'm going to try that, but I might be interrupted soon, sorry if I don't report back for a while."}}