{"action":"created","issue":{"url":"https://api.github.com/repos/ember-cli/ember-cli/issues/2856","labels_url":"https://api.github.com/repos/ember-cli/ember-cli/issues/2856/labels{/name}","comments_url":"https://api.github.com/repos/ember-cli/ember-cli/issues/2856/comments","events_url":"https://api.github.com/repos/ember-cli/ember-cli/issues/2856/events","html_url":"https://github.com/ember-cli/ember-cli/issues/2856","id":53113837,"number":2856,"title":"Build times (initial and subsequent) 2x-4x slower after 0.1.5 upgrade","user":{"login":"beerlington","id":77580,"avatar_url":"https://avatars.githubusercontent.com/u/77580?v=3","gravatar_id":"","url":"https://api.github.com/users/beerlington","html_url":"https://github.com/beerlington","followers_url":"https://api.github.com/users/beerlington/followers","following_url":"https://api.github.com/users/beerlington/following{/other_user}","gists_url":"https://api.github.com/users/beerlington/gists{/gist_id}","starred_url":"https://api.github.com/users/beerlington/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/beerlington/subscriptions","organizations_url":"https://api.github.com/users/beerlington/orgs","repos_url":"https://api.github.com/users/beerlington/repos","events_url":"https://api.github.com/users/beerlington/events{/privacy}","received_events_url":"https://api.github.com/users/beerlington/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ember-cli/ember-cli/labels/blocking","name":"blocking","color":"e11d21"},{"url":"https://api.github.com/repos/ember-cli/ember-cli/labels/bug","name":"bug","color":"fc2929"}],"state":"open","locked":false,"assignee":{"login":"rwjblue","id":12637,"avatar_url":"https://avatars.githubusercontent.com/u/12637?v=3","gravatar_id":"","url":"https://api.github.com/users/rwjblue","html_url":"https://github.com/rwjblue","followers_url":"https://api.github.com/users/rwjblue/followers","following_url":"https://api.github.com/users/rwjblue/following{/other_user}","gists_url":"https://api.github.com/users/rwjblue/gists{/gist_id}","starred_url":"https://api.github.com/users/rwjblue/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rwjblue/subscriptions","organizations_url":"https://api.github.com/users/rwjblue/orgs","repos_url":"https://api.github.com/users/rwjblue/repos","events_url":"https://api.github.com/users/rwjblue/events{/privacy}","received_events_url":"https://api.github.com/users/rwjblue/received_events","type":"User","site_admin":false},"milestone":null,"comments":35,"created_at":"2014-12-30T12:55:21Z","updated_at":"2015-01-15T16:21:33Z","closed_at":null,"body":"I upgraded from 0.1.2 to 0.1.5 and am seeing a 2x initial build time slowdown and a 4x subsequent rebuild time slowdown. The initial build time is tolerable because it only happens once, but having to wait > 4x longer when saving changes is a bit tedious during development. I initially upgraded on a MacBook Air and thought it was a fluke, but I've since done is on a fairly beefy iMac and am seeing the same results.\r\n\r\nI created a gist showing a [comparison of 0.1.2 vs 0.1.5 build times](https://gist.github.com/beerlington/c79fa6de0e3bb27615c7), but here's a short summary of what I'm seeing:\r\n\r\n**0.1.2 rebuild**\r\n\r\n```\r\nBuild successful - 675ms.\r\n \r\nSlowest Trees                  | Total          \r\n-------------------------------+----------------\r\nLessCompiler                   | 148ms          \r\nES6Concatenator                | 84ms           \r\nES3SafeFilter                  | 70ms           \r\nJSHint - App                   | 65ms           \r\nJSHint - Tests                 | 49ms           \r\nTemplateCompiler               | 36ms \r\n```\r\n\r\n**0.1.5 rebuild**\r\n\r\n```\r\nBuild successful - 2951ms.\r\n \r\nSlowest Trees                  | Total          \r\n-------------------------------+----------------\r\nLessCompiler                   | 1045ms         \r\nClass                          | 333ms          \r\nClass                          | 241ms          \r\nClass                          | 205ms          \r\nFunnel                         | 202ms \r\n```\r\n\r\nI searched through the open and closed issues from the last month or so and don't see anything similar to what I'm seeing. I'm also using Ember 1.9 (not 1.8.1 which is what `ember init` suggests I use), so perhaps that version is not yet supported? "},"comment":{"url":"https://api.github.com/repos/ember-cli/ember-cli/issues/comments/70112053","html_url":"https://github.com/ember-cli/ember-cli/issues/2856#issuecomment-70112053","issue_url":"https://api.github.com/repos/ember-cli/ember-cli/issues/2856","id":70112053,"user":{"login":"wayne-o","id":178060,"avatar_url":"https://avatars.githubusercontent.com/u/178060?v=3","gravatar_id":"","url":"https://api.github.com/users/wayne-o","html_url":"https://github.com/wayne-o","followers_url":"https://api.github.com/users/wayne-o/followers","following_url":"https://api.github.com/users/wayne-o/following{/other_user}","gists_url":"https://api.github.com/users/wayne-o/gists{/gist_id}","starred_url":"https://api.github.com/users/wayne-o/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wayne-o/subscriptions","organizations_url":"https://api.github.com/users/wayne-o/orgs","repos_url":"https://api.github.com/users/wayne-o/repos","events_url":"https://api.github.com/users/wayne-o/events{/privacy}","received_events_url":"https://api.github.com/users/wayne-o/received_events","type":"User","site_admin":false},"created_at":"2015-01-15T16:21:33Z","updated_at":"2015-01-15T16:21:33Z","body":"I was using NFS but live rebuild stopped working so ATM it is:\r\n\r\n config.vm.synced_folder \".\", \"/vagrant\"\r\n\r\nI want it to be easy for other people to get set up and running - vagrant seems to be the best way to do this."}}