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A comment on Less.js will obsolete CSS. Parent comment

Re:Less.js will obsolete CSS by cloudhead on Sunday June 20, 2010 @10:04PM (#1447663)
That's because the parser isn't optimized for compressed CSS.

By airing the file out a bit (just adding some double line-breaks), and passing -O2, it goes down to 177ms :)

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Re:Less.js will obsolete CSS by nex3 on Monday June 21, 2010 @04:18AM (#1448270)
This is real CSS handwritten by real people. It's not compressed, it's just not in a fully-expanded style. If your parser is slow for reasonably formatted CSS, then your parser is slow. The best case can be as fast as you want, but real-world use is what matters.

For what it's worth, -O2 brings the compile time for github.css down to about 1.5s.

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Re:Less.js will obsolete CSS by cloudhead on Monday June 21, 2010 @06:10AM (#1448393)
The github CSS is compressed. It's fine to test worse-case scenario, but doesn't mean much.
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Re:Less.js will obsolete CSS by nex3 on Monday June 21, 2010 @05:21PM (#1450120)
No it's not. Look at it: it's one-selector-per-line, which is a very common style for handwritten CSS. If it were compressed, it would have no line breaks.
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