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gruntjs / grunt-contrib-cssmin

Compress CSS files.
http://gruntjs.com/
MIT License
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Performance degradation with Clean-CSS 3.0 #255

Closed nate250 closed 8 years ago

nate250 commented 8 years ago

We are experiencing significant performance degradation when upgrading from CSSMin 0.10 to 0.11. Prior to the upgrade, our main app.css file reduced from 3.73MB to 850kB in roughly 6 seconds. After the upgrade, the file reduced from 3.73MB to 450kB in 8-10 minutes.

If we run with CleanCSS's advanced option turned off, build time is restored to the more normal 6 seconds, but the file only reduces to 2.99MB.

I assume this is more related to CleanCSS than CSSMin and will be opening an issue there as well.

sindresorhus commented 8 years ago

Link up the CleanCSS issue. Nothing we can do about it here.