Watcher is quite slow to recognize changes after recent watcher updates.

[mmase]

Watcher is quite slow to recognize changes after recent watcher updates. Perhaps this is isolated to large sass codebases. What used to be instant now takes 5 to 10 seconds. Once changes are recognized, compilation is normal/fast.

• NPM version 5.6.0
• Node version 8.9.4
• Node Process

{ http_parser: '2.7.0',
  node: '8.9.4',
  v8: '6.1.534.50',
  uv: '1.15.0',
  zlib: '1.2.11',
  ares: '1.10.1-DEV',
  modules: '57',
  nghttp2: '1.25.0',
  openssl: '1.0.2n',
  icu: '59.1',
  unicode: '9.0',
  cldr: '31.0.1',
  tz: '2017b' }

• Node Platform darwin
• Node architecture x64
• node-sass version

node-sass	4.7.2	(Wrapper)	[JavaScript]
libsass  	3.5.0.beta.2	(Sass Compiler)	[C/C++]

• npm node-sass versions

be.net@0.0.0 /Users/mase/Code/behance/be.net
├── node-sass@4.7.2

[nschonni]

What version are you comparing to when you found it fast?

[mmase]

@nschonni 4.5.2 is last one but maybe 4.7.1 or 4.7.0.

Here is a profile of what I am talking about. It looks like close is fired many, many times now. Appears to be an issue with gaze maybe. A bunch of us just noticed it quite recently though.

[weichenghsu]

I doubt it's due to the Mac OS high sierra version?

[mmase]

Correct, confirmed on earlier OS’ within our org.

…

On Mon, Feb 26, 2018 at 5:43 PM weichenghsu ***@***.***> wrote: I doubt it's due to the Mac OS high sierra version? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#2208 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAt_eW1UpGMUfPu7JPm7pX8IfS6WBKYBks5tYzN8gaJpZM4RYKKi> .

[weichenghsu]

Thanks~ Any workaround solution so far?

[korve]

I have the same problem with macOS 10.13.3. The watcher is stuck at 100% CPU usage after updating a sass file that is watched by node-sass. It then takes around 20-30s to recognize the change.

Last working version for me is node-sass 4.5.3

$ node --version
v9.6.1

$ npm version
{ npm: '5.6.0',
  ares: '1.13.0',
  cldr: '32.0.1',
  http_parser: '2.7.0',
  icu: '60.2',
  modules: '59',
  napi: '2',
  nghttp2: '1.29.0',
  node: '9.6.1',
  openssl: '1.0.2n',
  tz: '2017c',
  unicode: '10.0',
  uv: '1.19.1',
  v8: '6.2.414.46-node.20',
  zlib: '1.2.11' }

$ node-sass --version
node-sass	4.7.2	(Wrapper)	[JavaScript]
libsass  	3.5.0.beta.2	(Sass Compiler)	[C/C++]

[weichenghsu]

Super slow on high sierra only. Also happens at sass (ruby gem) I believe they are sharing the same system library and the sys lib might be the bottleneck.

node --version && npm --version (git)-[develop]
v9.5.0
5.6.0

[evelant]

Also seeing 100% cpu use on Mac OS 10.13.6. Reverting to node-sass v4.5.3 resolves it.

[idiazroncero]

I'm also experiencing this issue, node-sass is at 4.12