angular / angular-cli

CLI tool for Angular
https://cli.angular.dev
MIT License
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Rebuild extremely slow #1980

Closed asadsahi closed 7 years ago

asadsahi commented 8 years ago
  1. OS? Windows 7, 8 or 10. Linux (which distribution). Mac OSX (Yosemite? El Capitan?) Windows 10
  2. Versions. Please run ng --version. If there's nothing outputted, please run in a Terminal: node --version and paste the result here: angular-cli: 1.0.0-beta.11-webpack.8 node: 6.3.0 os: win32 x64
  3. Repro steps. Was this an app that wasn't created using the CLI? What change did you do on your code? etc. app created with 1.0.0-beta.11-webpack.2 and later on upgraded to 1.0.0-beta.11-webpack.8 with appropriate changes.
  4. The log given by the failure. Normally this include a stack trace and some more information. The slow behavious is observed when upgraded from 1.0.0-beta.11-webpack.2 to 1.0.0-beta.11-webpack.8
  5. Mention any other details that might be useful. Slow behavious reproduceable in following repo: https://github.com/asadsahi/ng2fb-bootstrap


I have experience this on two operating systems, windows 7 and windows 10. Has anyone else experieced this? For me rebuilds are dramatically slow, taking roughly 7-8 seconds which on same machine with cli version webpack.2 was taking rougly 2-3 seconds.

stellasoft-george commented 8 years ago

+1 Rebuilds are extremely slow for me on OSX 10.11.6

RicardoVaranda commented 8 years ago

+1 also quite slow on linux x64 after I moved my assets from the app folder to the appropriate assets folder, it now optimizes the assets folder every time I make a change to any of the code which seems to be the reason for the added delay.

filipesilva commented 8 years ago

@TheLarkInn can you weigh in? It seems related with CopyWebpackPlugin.

ghost commented 8 years ago

I also have a very slow "chunk assert optimization" step (~8s all the time even for small changes in one file). looking at https://github.com/webpack/webpack/issues/539#issuecomment-111275792 it seems it could be due to the source-map configuration chosen.

intellix commented 8 years ago

Would DLL loading for vendor items help here? They must be 90% of bundle size

dasAnderl commented 8 years ago

+1 build/rebuilds extremely slow, as well as the update/recompiling in the browser. as well as ng test

guiomie commented 8 years ago

+1, new to angular2. I really like how it was easy to get started, sadly, keeping going is much harder. Every time I modify a file and save, it takes more than 10 seconds before I can reload the browser and see my update. For web development, I can't do this. Maybe I'll switch to Angular2 JS.

Here is what I see in my shell on ubuntu:

webpack: bundle is now VALID.
webpack: bundle is now INVALID.
1337ms building modules                                                       
19ms sealing
1ms optimizing 
0ms basic module optimization 
468ms module optimization
3ms advanced module optimization 
56ms basic chunk optimization       
0ms chunk optimization 
0ms advanced chunk optimization 
51ms module and chunk tree optimization
900ms module reviving
8ms module order optimization 
11ms module id optimization
9ms chunk reviving 
2ms chunk order optimization 
44ms chunk id optimization
212ms hashing
1ms module assets processing 
0ms chunk assets processing 
11ms additional chunk assets processing
0ms recording 
1ms additional asset processing 
0ms chunk asset optimization 
1618ms asset optimization
1ms emitting 
Hash: 8e4aceb7595d757b77f1
Version: webpack 2.1.0-beta.22
Time: 12081ms
           Asset     Size  Chunks       Chunk Names
  main.bundle.js  4.04 MB    0, 2       main
styles.bundle.js  10.2 kB    1, 2       styles
       inline.js  5.53 kB       2       inline
        main.map  4.31 MB    0, 2       main
      styles.map    14 kB    1, 2       styles
      inline.map  5.59 kB       2       inline
Child html-webpack-plugin for "index.html":
         Asset     Size  Chunks       Chunk Names
    index.html  3.69 kB       0  
thorsten commented 8 years ago

Same issue here.

filipesilva commented 8 years ago

https://github.com/angular/angular-cli/pull/2570 moved away from CopyWebpackPlugin to a simpler glob copy. This should help with @RicardoVaranda's issue.

filipesilva commented 8 years ago

@asadsahi with beta.17 I registered a 6633ms second rebuild time, is this in line with your experience?

webpack: bundle is now INVALID.
406ms building modules
15ms sealing
1ms optimizing
1ms basic module optimization
133ms module optimization
58ms advanced module optimization
49ms basic chunk optimization
1ms chunk optimization
0ms advanced chunk optimization
36ms module and chunk tree optimization
167ms module reviving
4ms module order optimization
9ms module id optimization
6ms chunk reviving
2ms chunk order optimization
39ms chunk id optimization
58ms hashing
4ms module assets processing
78ms chunk assets processing
5ms additional chunk assets processing
1ms recording
1ms additional asset processing
1992ms chunk asset optimization
532ms asset optimization
53ms emitting
Hash: ee2a562c10e2a5133f8d
Version: webpack 2.1.0-beta.25
Time: 6633ms
                                 Asset     Size  Chunks             Chunk Names
                      styles.bundle.js   173 kB    7, 9             styles
  25a32416abee198dd821b0b17a198a8f.eot  76.5 kB
  1dc35d25e61d819a9c357074014867ab.ttf   153 kB
 c8ddf1e5e5bf3682bc7bebf30f394148.woff  90.4 kB
e6cf7c6ec7c2d6f670ae9d762604cb0b.woff2  71.9 kB
                            0.chunk.js    36 kB    0, 9
                            1.chunk.js  16.9 kB    1, 9
                            2.chunk.js  21.8 kB    2, 9
                            3.chunk.js  9.87 kB    3, 9
                            4.chunk.js  14.5 kB    4, 9
                            5.chunk.js  11.9 kB    5, 9
                        main.bundle.js  4.42 MB    6, 9  [emitted]  main
  d7c639084f684d66a1bc66855d193ed8.svg   392 kB
                     scripts.bundle.js   466 kB    8, 9             scripts
                             inline.js  5.53 kB       9             inline
                                 0.map  30.7 kB    0, 9
                                 1.map    15 kB    1, 9
                                 2.map  18.8 kB    2, 9
                                 3.map  7.45 kB    3, 9
                                 4.map  13.3 kB    4, 9
                                 5.map  9.82 kB    5, 9
                            styles.map   236 kB    7, 9             styles
                           scripts.map   576 kB    8, 9             scripts
                            inline.map  5.59 kB       9             inline
                              main.map  4.66 MB    6, 9  [emitted]  main
Child html-webpack-plugin for "index.html":
         Asset    Size  Chunks       Chunk Names
    index.html  3.8 kB       0
webpack: bundle is now VALID.
sasxa commented 8 years ago

@filipesilva I also noticed rebuilds are about two times faster when I upgraded from beta.16 to beta.17; with average of 4 seconds.

I'm still new to webpack world, so I don't yet really understand how things work internally, but after a quick search I found https://github.com/TypeStrong/ts-loader/issues/78. Is this what's slowing down CLI's build process? I used custom gulp build process few months ago and had average 250ms rebuild times, so even 3-6 seconds with CLI is quite a setback ;(

Also, bit off topic, is it possible to isolate app code from vendor code in dev builds? Would that speed things up?

guiomie commented 8 years ago

250ms would be like a dream!

@filipesilva if I add all the ms in your run extract, we get: 3651ms total. There is still a 3 seconds missing right?

When I run ng-serve, change some code, save my file, the change from "webpack: bundle is now VALID" to "webpack: bundle is now INVALID", takes a few second. Could this be optimized also?

filipesilva commented 8 years ago

@sasxa we don't use ts-loader, but I skimmed the issue and didn't find anything we could apply to the CLI.

@guiomie I am not too sure of how the numbers add up. All of that is handed over to webpack.

I also asked @TheLarkInn and there seem to be some incoming Webpack 2 optimizations that would help with speed.

asadsahi commented 8 years ago

@filipesilva yes I can confirm that rebuilds are somewhere taking same amount of time and I also suspect its somewhere in webpack because I am having similar rebuild times in another non-cli based project based on webpack 2.

@sasxa webpack dll is for the purpose of separating vendor from application files for speeding up rebuilds.

ipassynk commented 8 years ago

I see the similar issue and "ng serve" on any small sccs change reports these optimizations steps. It is very very slow. See the output:

webpack: bundle is now VALID.
webpack: bundle is now INVALID.
536ms building modules
6ms sealing
0ms optimizing
1ms basic module optimization
126ms module optimization
1ms advanced module optimization
25ms basic chunk optimization
0ms chunk optimization
0ms advanced chunk optimization
13ms module and chunk tree optimization
79ms module reviving
2ms module order optimization
5ms module id optimization
4ms chunk reviving
1ms chunk order optimization
16ms chunk id optimization
47ms hashing
1ms module assets processing
1ms chunk assets processing
4ms additional chunk assets processing
0ms recording
0ms additional asset processing
0ms chunk asset optimization
825ms asset optimization
5ms emitting

ng version:

angular-cli: 1.0.0-beta.16
node: 4.5.0
os: darwin x64
mhadaily commented 8 years ago

same here , it's too slow!

angular-cli: 1.0.0-beta.17
node: 6.6.0
os: darwin x64

Version: webpack 2.1.0-beta.25
Time: 8100ms
            Asset       Size  Chunks             Chunk Names
   main.bundle.js    3.12 MB    0, 2  [emitted]  main
 styles.bundle.js    10.2 kB    1, 2  [emitted]  styles
        inline.js    5.53 kB       2  [emitted]  inline
         main.map    3.19 MB    0, 2  [emitted]  main
       styles.map    14.2 kB    1, 2  [emitted]  styles
       inline.map    5.59 kB       2  [emitted]  inline
       index.html  480 bytes          [emitted]  
assets/.npmignore    0 bytes          [emitted]  
Child html-webpack-plugin for "index.html":
         Asset     Size  Chunks       Chunk Names
    index.html  2.81 kB       0       
webpack: bundle is now VALID.
JanStureNielsen commented 8 years ago

See #2651

clydin commented 8 years ago

@JanStureNielsen, that's not related to rebuild times but instead to initial npm installs.

I'm also experiencing the invalidation delay that @guiomie reported. As well as files not being marked as changed. @TheLarkInn, is there a plan to integrate watchman within webpack? It is highly effective at what it does.

guiomie commented 8 years ago

Should this be bumped as critical? It seems to impede peoples productivity and maybe scare new comers to angular-cli.

JohannesRudolph commented 8 years ago

to chime in here with some data of a fairly small angular2 project using scss:

angular-cli: 1.0.0-beta.17
node: 6.3.0
os: darwin x64

webpack: bundle is now VALID.
webpack: bundle is now INVALID.
526ms building modules                                                             
5ms sealing 
0ms optimizing 
0ms basic module optimization 
155ms module optimization
1ms advanced module optimization 
6ms basic chunk optimization        
0ms chunk optimization 
0ms advanced chunk optimization 
10ms module and chunk tree optimization
77ms module reviving
1ms module order optimization 
3ms module id optimization 
2ms chunk reviving 
0ms chunk order optimization 
11ms chunk id optimization
81ms hashing
1ms module assets processing 
106ms chunk assets processing
4ms additional chunk assets processing 
0ms recording 
0ms additional asset processing 
3427ms chunk asset optimization
596ms asset optimization
51ms emitting
Hash: 20f361734232b0bd829f
Version: webpack 2.1.0-beta.25
Time: 6997ms
           Asset     Size  Chunks             Chunk Names
  main.bundle.js  3.32 MB    0, 2  [emitted]  main
styles.bundle.js   138 kB    1, 2             styles
       inline.js  5.53 kB       2             inline
      styles.map   182 kB    1, 2             styles
      inline.map  5.59 kB       2             inline
        main.map  3.39 MB    0, 2  [emitted]  main
Child html-webpack-plugin for "index.html":
         Asset     Size  Chunks       Chunk Names
    index.html  2.81 kB       0       

The most time is spent on chunk asset optimization, so that looks like a worthwhile target.

intellix commented 8 years ago

Running ng test is excruciatingly slow. It takes quite some time to detect there are changes and then re-run them.

New project with 79 tests:

Single/first run: ~90s Changes:: ~12s Changes after using for some time before it crashes:: ~20s

As @guiomie said, the numbers don't add up for serving either: 638+10+1+3+200+1+17+121+149+3+6+18+78+83+3+6+1047 = 2384ms but says 6080ms so seems to be 3696ms going somewhere else.

cetra3 commented 8 years ago

Just using the default ng new app takes about 3 seconds to reload. Is there a way to limit the munging wepback is doing to speed this up? Even if just for live reload scenarios.

ihorskyi commented 8 years ago

5269 ms to reload on simple changes on OS X El Capitan with clean ng new

screen shot 2016-10-21 at 5 31 55 am

YagoLopez commented 8 years ago

Same here. Just write to subscribe to the thread. Environment: Intel i7, SSD Disk, Windows 10 => Initial Hello World compilation 15 seconds aprox. Recompilation after minimum changes: 6 seconds what makes it unpractial for agile development.

Using angular quickstart project from github without webpack gives me times of 300 ms for live-reloading. There must to be a way to choose not compiling during development and use bundling and minification only for production in my opinion.

guiomie commented 8 years ago

@YagoLopez , if I look in the models/webpack-build-developement.js , it looks like minification is disabled:

plugins: [
            new webpack.LoaderOptionsPlugin({
                options: {
                    minimize: false,
                    tslint: {
                        emitErrors: false,
                        failOnHint: false,
                        resourcePath: path.resolve(projectRoot, appConfig.root)
                    },
                }
            })
        ],
filipesilva commented 8 years ago

@guiomie we reserve critical for stuff like release bugs, or wholly broken commands. Stuff that usually needs a new release ASAP or no one can do anything.

We recognise that the slowness is crippling and are looking to solutions for it. It's one of the things we want to address before RC1.

filipesilva commented 8 years ago

Also thanks to all that are posting their numbers, it's very useful to get a benchmark. @intellix's report is specially worrying imho.

YagoLopez commented 8 years ago

@filipesilva thanks for your work, i undertand the complexities of the problem. I guess it is question of time.

@guiomie thanks for the info, but then, source map files should't be created in the process of compilation. If I'm not wrong they do are created. Anyway with minification or not its too much time in my opinion. I guess this problems will be solved in future versions. Cheers.

filipesilva commented 8 years ago

@intellix https://github.com/angular/angular-cli/pull/2840 should help with ng test. It makes code coverage and linting optional. On a test project with 100 component tests, total time went down from 90s to 30s.

JohannesRudolph commented 8 years ago

@filipesilva that sounds useful, at least as it makes a lot of sense to (optionally) skip coverage reporting when running ng test --watch=true

I'm still not sure though why webpack spends so much time in "chunk assets optimization". Might be a webpack related issue after all.

rdwatters commented 8 years ago

@filipesilva Brand new to all-things Angular. I just installed the Angular CLI and am going through the free introductory Angular 2 course on egghead.io. I've literally made 1 change to a component file, and the rebuilds are slow (not to be too redundant from everything in this thread):

angular-cli: 1.0.0-beta.18
node: 6.5.0
os: darwin x64

Bootingup ng serve I get...
Time: 8973ms

If I save index.html, I get...
Time: 3329ms 

Which isn't necessarily bad, but I haven't actually done anything with files yet:) 

I know this is still in beta, so please don't take this negatively, but coming from Ember and React, I've never seen builds/reloads this slow. Should I hold off on using CLI for learning NG 2 until the process is a bit faster? I'm looking more for guidance than I am trying to criticize the project. Thanks!

YagoLopez commented 8 years ago

Excuse me if this is not the right place to post this, but does webpack use hot module reloading with "ng serve" on Windows? I've seen videos on youtube about angular 2 where only the file edited is reloaded instead of rebuilding all files, (in a Mac computer).

@rdwatters you could try this https://github.com/angular/quickstart. It's a bit faster in my experience. It does not use angular-cli but could be appropiated for testing purposes

Also this could be of interest for anyone reading this:

Working with editors/IDEs supporting “safe write”

Note that many editors support “safe write” feature and have it enabled by default, which makes dev server unable to watch files correctly. “Safe write” means changes are not written directly to original file but to temporary one instead, which is renamed and replaces original file when save operation is completed successfully. This behaviour causes file watcher to lose the track because the original file is removed. In order to prevent this issue, you have to disable “safe write” feature in your editor.

VIM - set :set backupcopy=yes (see documentation) IntelliJ - Settings ▶︎ System Settings ▶︎ Synchronization ▶︎ disable safe write (may differ in various IntelliJ IDEs, but you can still use the search feature)

SOURCE: https://webpack.github.io/docs/webpack-dev-server.html

sharok commented 8 years ago

Some additional info from me. Updating takes 20 seconds for me.

webpack: bundle is now INVALID.
 50% building modules 2/3 modules 1 active ...sers\user-edit\user-edit.component.tsweb
pack: wait until bundle finished: /settings
1339ms building modules
1457ms sealing
0ms optimizing
1ms basic module optimization
100ms module optimization
3269ms advanced module optimization
24ms basic chunk optimization
0ms chunk optimization
0ms advanced chunk optimization
530ms module and chunk tree optimization
384ms module reviving
3ms module order optimization
48ms module id optimization
129ms chunk reviving
1ms chunk order optimization
503ms chunk id optimization
110ms hashing
1ms module assets processing
142ms chunk assets processing
12ms additional chunk assets processing
0ms recording
1ms additional asset processing
6849ms chunk asset optimization
1570ms asset optimization
397ms emitting
Hash: 9db8a41caee5835af84d
Version: webpack 2.1.0-beta.25
Time: 20520ms
           Asset     Size  Chunks             Chunk Names
           0.map   117 kB   0, 30
      0.chunk.js  95.5 kB   0, 30
      2.chunk.js   210 kB   2, 30
      3.chunk.js  1.16 MB   3, 30
      4.chunk.js  18.4 kB   4, 30
      5.chunk.js  20.6 kB   5, 30
      6.chunk.js   115 kB   6, 30
      7.chunk.js  70.6 kB   7, 30
      8.chunk.js  96.1 kB   8, 30
      9.chunk.js    13 kB   9, 30
     10.chunk.js  54.2 kB  10, 30
     11.chunk.js  40.1 kB  11, 30
     12.chunk.js   177 kB  12, 30
     13.chunk.js  15.8 kB  13, 30
     14.chunk.js  11.8 kB  14, 30
     15.chunk.js  19.4 kB  15, 30
     16.chunk.js  9.67 kB  16, 30
     17.chunk.js  34.8 kB  17, 30
     18.chunk.js  16.7 kB  18, 30
     19.chunk.js  18.9 kB  19, 30
     20.chunk.js  66.2 kB  20, 30
     21.chunk.js  11.4 kB  21, 30
     22.chunk.js  56.3 kB  22, 30
     23.chunk.js   410 kB  23, 30
     24.chunk.js  64.7 kB  24, 30
     25.chunk.js  2.44 kB  25, 30
     26.chunk.js  33.2 kB  26, 30
     27.chunk.js   238 kB  27, 30
  main.bundle.js  6.75 MB  28, 30  [emitted]  main
styles.bundle.js  12.9 kB  29, 30             styles
       inline.js  5.53 kB      30             inline
      1.chunk.js   315 kB   1, 30
           1.map   415 kB   1, 30
           2.map   248 kB   2, 30
           3.map  1.26 MB   3, 30
           4.map  22.3 kB   4, 30
           5.map  24.6 kB   5, 30
           6.map   146 kB   6, 30
           7.map  91.1 kB   7, 30
           8.map   118 kB   8, 30
           9.map  18.4 kB   9, 30
          10.map  69.8 kB  10, 30
          11.map  46.3 kB  11, 30
          12.map   217 kB  12, 30
          13.map  20.5 kB  13, 30
          14.map  14.8 kB  14, 30
          15.map  23.3 kB  15, 30
          16.map  12.6 kB  16, 30
          17.map  40.4 kB  17, 30
          18.map    20 kB  18, 30
          19.map  22.1 kB  19, 30
          20.map  79.1 kB  20, 30
          21.map  13.8 kB  21, 30
          22.map  66.7 kB  22, 30
          23.map   494 kB  23, 30
          24.map  77.2 kB  24, 30
          25.map  3.16 kB  25, 30
          26.map  41.5 kB  26, 30
          27.map   295 kB  27, 30
      styles.map  17.6 kB  29, 30             styles
      inline.map  5.59 kB      30             inline
        main.map  7.31 MB  28, 30  [emitted]  main
Child html-webpack-plugin for "index.html":
         Asset     Size  Chunks       Chunk Names
    index.html  6.11 kB       0
webpack: bundle is now VALID.
intellix commented 8 years ago

Just wanna add some information to help others with testing: fdescribe, fit, xdescribe, xit are your friends for only running particular tests :) http://jasmine.github.io/2.1/focused_specs.html

jmlivingston commented 8 years ago

First of all, thanks for the great work all. Was hoping Node 7 upgrade might help, but it was only marginal. Would love to see this sped up as well. For example, the following similar project is on the React side, but rebuilds in about 1/4 the time. https://github.com/davezuko/react-redux-starter-kit

paweloque commented 8 years ago

I experience the same Problems on my mac with OSX 10.11.6. Updates take 13secs for me. What is your idea on solving this? With plain webpack I'd probably try to improve performance by separating the build of the libraries and the build of my own files using the dll approach.

My numbers are btw. the following:

webpack: bundle is now INVALID.
354ms building modules                                                             
5ms sealing 
0ms optimizing 
0ms basic module optimization 
119ms module optimization
0ms advanced module optimization 
13ms basic chunk optimization       
0ms chunk optimization 
0ms advanced chunk optimization 
38ms module and chunk tree optimization
172ms module reviving
1ms module order optimization 
3ms module id optimization 
7ms chunk reviving 
0ms chunk order optimization 
47ms chunk id optimization
67ms hashing
1ms module assets processing 
98ms chunk assets processing
4ms additional chunk assets processing 
1ms recording 
0ms additional asset processing 
3092ms chunk asset optimization
7742ms asset optimization
69ms emitting
Hash: 8065f4ec0d2feed80685
Version: webpack 2.1.0-beta.25
Time: 13361ms
                                 Asset     Size  Chunks             Chunk Names
  f24134ff542a345f5af1c3e616872d8b.svg  12.8 kB                     
  f4769f9bdb7466be65088239c12046d1.eot  20.1 kB                     
  c3572dbbb07e826429824fe22f049c73.eot    48 kB                     
  55ed4dcca47c6b224f2ed1536524f6ed.svg  71.7 kB                     
 78bb38012b6093e39a98a8a5270f81f6.woff  55.2 kB                     
  89889688147bd7575d6327160d64e760.svg   109 kB                     
  e18bbf611f2a2e43afc071aa2f4e1512.ttf  45.4 kB                     
 fa2772327f55d8198301fdb8bcfc8158.woff  23.4 kB                     
  ff22e7b0d9516041df8efa602e806bfc.eot  3.62 kB                     
448c34a56d699c29117adc64c43affeb.woff2    18 kB                     
                        main.bundle.js  4.97 MB    0, 2  [emitted]  main
                      styles.bundle.js   228 kB    1, 2             styles
                             inline.js  5.53 kB       2             inline
                            styles.map   289 kB    1, 2             styles
                            inline.map  5.59 kB       2             inline
                              main.map  5.28 MB    0, 2  [emitted]  main
Child html-webpack-plugin for "index.html":
         Asset     Size  Chunks       Chunk Names
    index.html  3.83 kB       0       
webpack: bundle is now VALID.
samthomson commented 8 years ago

Not sure how it would be implemented, or if it's already possible? but If I could exclude rebuilding all node_modules/* from the 'ng-build' command, and just 'compile' my changed partials/js/css files I think that would reduce my build-time considerably. It's not often I'd need to rebuild the node_modules.

kondi commented 8 years ago

Hi! I have implemented the dll option for faster rebuilds. Check my fork to try it: https://github.com/kondi/angular-cli I have more than two times faster rebuild for the default empty project.

asadsahi commented 8 years ago

@kondi tried linking your repo to one of playground project, but cannot see reasonable difference of rebuilds, here are the stats:

Before:

Version: webpack 2.1.0-beta.25
Time: 4127ms
                                 Asset     Size  Chunks             Chunk Names
                      styles.bundle.js   183 kB    7, 9             styles
  25a32416abee198dd821b0b17a198a8f.eot  76.5 kB                     
  1dc35d25e61d819a9c357074014867ab.ttf   153 kB                     
 c8ddf1e5e5bf3682bc7bebf30f394148.woff  90.4 kB                     
e6cf7c6ec7c2d6f670ae9d762604cb0b.woff2  71.9 kB                     
                            0.chunk.js   456 kB    0, 9             
                            1.chunk.js  36.4 kB    1, 9             
                            2.chunk.js  21.9 kB    2, 9             
                            3.chunk.js  9.89 kB    3, 9  [emitted]  
                            4.chunk.js  14.5 kB    4, 9             
                            5.chunk.js  11.9 kB    5, 9             
                        main.bundle.js  3.81 MB    6, 9             main
  d7c639084f684d66a1bc66855d193ed8.svg   392 kB                     
                     scripts.bundle.js   461 kB    8, 9             scripts
                             inline.js  5.53 kB       9             inline
                                 0.map   570 kB    0, 9             
                                 1.map  31.4 kB    1, 9             
                                 2.map  18.8 kB    2, 9             
                                 4.map  13.3 kB    4, 9             
                                 5.map  9.82 kB    5, 9             
                              main.map  3.97 MB    6, 9             main
                            styles.map   248 kB    7, 9             styles
                           scripts.map   570 kB    8, 9             scripts
                            inline.map  5.59 kB       9             inline
                                 3.map  7.45 kB    3, 9  [emitted]  
Child html-webpack-plugin for "index.html":
         Asset    Size  Chunks       Chunk Names
    index.html  3.8 kB       0       
webpack: bundle is now VALID.

After:

ersion: webpack 2.1.0-beta.25                                                                                                                        
Time: 3508ms                                                                                                                                          
                                 Asset     Size  Chunks             Chunk Names                                                                       
                      styles.bundle.js   186 kB    7, 9             styles                                                                            
  25a32416abee198dd821b0b17a198a8f.eot  76.5 kB                                                                                                       
  1dc35d25e61d819a9c357074014867ab.ttf   153 kB                                                                                                       
e6cf7c6ec7c2d6f670ae9d762604cb0b.woff2  71.9 kB                                                                                                       
 c8ddf1e5e5bf3682bc7bebf30f394148.woff  90.4 kB                                                                                                       
                            0.chunk.js   458 kB    0, 9                                                                                               
                            1.chunk.js  36.3 kB    1, 9                                                                                               
                            2.chunk.js  21.7 kB    2, 9                                                                                               
                            3.chunk.js  9.84 kB    3, 9  [emitted]                                                                                    
                            4.chunk.js  14.4 kB    4, 9                                                                                               
                            5.chunk.js  11.8 kB    5, 9                                                                                               
                        main.bundle.js  1.06 MB    6, 9             main                                                                              
  d7c639084f684d66a1bc66855d193ed8.svg   392 kB                                                                                                       
                     scripts.bundle.js   461 kB    8, 9             scripts                                                                           
                      inline.bundle.js  5.53 kB       9             inline                                                                            
                                 0.map   577 kB    0, 9                                                                                               
                                 1.map  31.6 kB    1, 9                                                                                               
                                 2.map    19 kB    2, 9                                                                                               
                                 4.map  13.4 kB    4, 9                                                                                               
                                 5.map  9.95 kB    5, 9                                                                                               
                              main.map   1.2 MB    6, 9             main                                                                              
                            styles.map   252 kB    7, 9             styles                                                                            
                           scripts.map   570 kB    8, 9             scripts                                                                           
                            inline.map   5.6 kB       9             inline                                                                            
                                 3.map  7.57 kB    3, 9  [emitted]                                                                                    
Child html-webpack-plugin for "index.html":                                                                                                           
         Asset    Size  Chunks       Chunk Names                                                                                                      
    index.html  3.8 kB       0                                                                                                                        
webpack: bundle is now VALID.        

Time is lesser after linking, but sometimes with original angular-cli its roughly same.

kondi commented 8 years ago

For me in a freshly created ng new project the rebuild time is around 5000 ms without dll, 2000 ms using dll.

@asadsahi I checked your repository on my laptop. Without dll the rebuild time is around 11500 ms, with dll I am getting 6600 ms. I can get 5200 ms if I move more libraries to the dll (angularfire2, ng-bootstrap, ng2-translate). Your numbers look much better by default already. Maybe because I am testing on windows? Or slow computer?

asadsahi commented 8 years ago

@kondi you might be right, I am just mentioning following times, as rebuild times. Time: 4127ms Time: 3508ms

Another thing I was just keeping an eye on was how quickly browser gets refreshed after rebuild, and couldn't see significant differences. It might be something my head doesn't want to accept or illusion becasue I have another project based on webpack 1 with dll and that project's rebuild is 200-300 milliseconds, which I am hoping webpack 2 to have same stats one day :)

Your numbers look much better by default already. Maybe because I am testing on windows? Or slow computer?

Its definitely becasue testing I did was on my work machine which is and 8 core beefy machine. On my home laptop it comes down to same numbers (around 10+ seconds). Both work and personal machines are on windows BTW.

texel commented 8 years ago

I just discovered that the awesome-typescript-loader forkChecker option isn't being passed properly, so it's not forking and type checking is happening inline. Changing useForkChecker to forkChecker in the webpack config drops reload time on a pristine project from ~4sec to ~1.5sec for me. I'll prepare a PR right now.

filipesilva commented 8 years ago

@texel whoa that's impressive, great find! Let me know when that PR is up so I can review.

kondi commented 8 years ago

Funny that the whole reason of typescript is to not have this type of mistakes. Similar improvement for me as well. From 5.5 sec to 2.2 sec. If you combine with dll option, ends up at 1.2 sec.

texel commented 8 years ago

@filipesilva https://github.com/angular/angular-cli/pull/3008

Just getting the CLA sorted.

intellix commented 8 years ago

Just did a few numbers to check everything with 19-3 using forkChecker:

reload:

ng test reloads with 133 tests:

Would love to know the lowdown on using DLLs. To me it seems an obvious fix with the various frameworks being huge but haven't heard anything from anyone about why it's not used. Any ideas @TheLarkInn?

filipesilva commented 8 years ago

I haven't tested the DLL, but have tested https://github.com/mzgoddard/hard-source-webpack-plugin and noticed no improvement almost.

texel commented 8 years ago

https://github.com/mzgoddard/hard-source-webpack-plugin shouldn't be an improvement from an in-memory reload, but it should significantly reduce initial compile times.

Meligy commented 8 years ago

@texel does this mean it'd always be notable in ng build?

texel commented 8 years ago

DLL potentially complicates building the bundle (it has to be done in two steps, and the main bundle needs to be told how to reference the DLL) and it may slightly increase initial build time, but in my experience it's a win for dev speed and hopefully makes caching libs easier as well.