Bug Report or Feature Request (mark with an x)

- [x ] bug report
- [ ] feature request

Command (mark with an x)

- [ ] new
- [ ] build
- [x ] serve
- [ ] test
- [ ] e2e
- [ ] generate
- [ ] add
- [ ] update
- [ ] lint
- [ ] xi18n
- [ ] run
- [ ] config
- [ ] help
- [ ] version
- [ ] doc

Versions

npm: 5.6.0

Angular CLI: 7.0.6
Node: 8.9.4
OS: win32 x64
Angular: 7.0.4
... animations, common, compiler, core, forms, http
... platform-browser, platform-browser-dynamic, router

Package Version

@angular-devkit/architect 0.10.6
@angular-devkit/build-angular 0.10.6
@angular-devkit/build-optimizer 0.10.6
@angular-devkit/build-webpack 0.10.6
@angular-devkit/core 7.0.6
@angular-devkit/schematics 7.0.6
@angular/cdk 7.1.0
@angular/cli 7.0.6
@angular/compiler-cli 7.1.0
@angular/flex-layout 7.0.0-beta.19
@angular/language-service 7.1.0
@ngtools/webpack 7.0.6
@schematics/angular 7.0.6
@schematics/update 0.10.6
rxjs 6.3.3
typescript 3.1.6
webpack 4.19.1

Repro steps

Needs LARGE project, NOT empty project with ng new ...,
run npm start
make changes
wait for 10 min

The log given by the failure

N/A

Desired functionality

We have big project, and we've faced problem with ng serve updating/recompiling during update.
Now faster to re-run ng serve instead wait for rebuilding

Mention any other details that might be useful

we use simple ng serve without AOT or PROD flag