[wp-trac] [WordPress Trac] #44241: Increase the interval used by grunt watch to reduce CPU usage
WordPress Trac
noreply at wordpress.org
Sat May 26 22:17:45 UTC 2018
#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 | Resolution:
Keywords: has-patch | Focuses:
------------------------------+------------------------------
Description changed by jeremyfelt:
Old description:
> `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.
New description:
`grunt watch` appears to use around 40% of my CPU when sitting idle. By
default, [https://github.com/gruntjs/grunt-contrib-watch 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.
See [https://github.com/gruntjs/grunt-contrib-watch/issues/429 this
related discussion on the grunt-contrib-watch project ]
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#comment:1>
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