[wp-trac] [WordPress Trac] #44241: Increase the interval used by grunt watch to reduce CPU usage

[WordPress Trac]

#44241: Increase the interval used by grunt watch to reduce CPU usage
------------------------------+-----------------------------
 Reporter:  jeremyfelt        |      Owner:  (none)
     Type:  defect (bug)      |     Status:  new
 Priority:  normal            |  Milestone:  Awaiting Review
Component:  Build/Test Tools  |    Version:
 Severity:  normal            |   Keywords:  has-patch
  Focuses:                    |
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 `grunt watch` appears to use around 40% of my CPU when sitting idle. By
 default, [grunt-contrib-watch https://github.com/gruntjs/grunt-contrib-
 watch] uses a 100ms interval. Several of the groups in our `_watch` config
 specify an interval of 2 seconds, but others defer to the default.

 In my local environment (non-VM), if I add `options: { interval: 2000 }`
 to the config, colors, test, and phpunit groups, `grunt watch` CPU usage
 stays consistently within 2 to 5% at idle.

 If I change all configurations to 1 second, `grunt watch` CPU usage stays
 at around 9%.

 I'm attaching a patch that applies only the interval addition to each of
 the other groups.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44241>
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