问题
I have just started to play with Ember and ember-cli. I created a template project and added very few lines of js and some sass files from Web Starter Kit. And my project incremental build times are almost 15 to 25 seconds. I am running Windows 8.1, SSD , i5 with 12 GB RAM.
C:\Users\MyUser\Projects\ember\webapp>ember --version
version: 0.1.4
Could not find watchman, falling back to NodeWatcher for file system events
node: 0.10.29
npm: 2.1.10
Project source: https://github.com/mmrath/ember-webapp
I have tried excluding the project directory from indexing, windows defender and excluding node from windows defender. Nothing worked so far.
How can I bring down the build time?
UPDATE: After running command prompt as admin
C:\Users\MyUser\ember\webapp>ember serve
version: 0.1.4
Could not find watchman, falling back to NodeWatcher for file system events
Livereload server on port 35729
Serving on http://0.0.0.0:4200/
Build successful - 5632ms.
Slowest Trees | Total
-------------------------------+----------------
SassCompiler | 713ms
EsnextFilter | 622ms
ES6Concatenator | 530ms
EsnextFilter | 413ms
Funnel | 374ms
TreeMerger (vendor) | 343ms
TreeMerger (appAndDependencies) | 321ms
file added styles\wsk\components\_components\_sidebar-menu.scss
Build successful - 7171ms.
Slowest Trees | Total
-------------------------------+----------------
TreeMerger (vendor) | 879ms
SassCompiler | 745ms
Funnel | 667ms
TreeMerger (appAndDependencies) | 467ms
file changed styles\wsk\components\components.scss
file changed styles\app.scss
file changed styles\wsk\components\_components\_sidebar-menu.scss
Build successful - 5707ms.
Slowest Trees | Total
-------------------------------+----------------
Funnel | 1119ms
TreeMerger (vendor) | 656ms
SassCompiler | 586ms
TreeMerger (appAndDependencies) | 389ms
Thanks in advance.
回答1:
In order for symlinks to work, I believe you need to run the console as administrator. I just cloned your app, and did an incremental build test with two versions of console running.
The version of console not run as administrator took 8 seconds for initial build, and 8 seconds for incremental.
The version of console run as administrator took 8 seconds for initial build, and 800ms for incremental build.
EDIT: For those finding this through searches, take a look at an Ember addon to automatically configure your environment. Also available as a standalone npm package for those not wanting to install as an addon.
https://github.com/felixrieseberg/ember-cli-windows-addon https://github.com/felixrieseberg/ember-cli-windows
来源：https://stackoverflow.com/questions/27597186/too-slow-ember-cli-build-on-windows