Why is < faster than <=?

http://stackoverflow.com/questions/12135518/why-is-faster-than

by v33ra • 14 years ago

9 9 14 years ago

ta121213• 14 years ago

The top voted answer explains that the premise of the question and therefore the title of the submission is wrong.

acqq• 14 years ago

So you missed the answer from ridiculous_fish there: on Power PC CPU's doing floating point comparisons the speeds are actually different. That's a perfect counterexample for your claim that "the premise is wrong."

Detailed explanation about reasons was given by Lukas.

ta121213• 14 years ago

The Detailed Explanation given by Lucas concludes:

    So, on some machines, using a "less than" comparison
    might save one machine instruction. This was relevant in
    the era of sub-megahertz processor speed and 1:1 
    cpu-to-memory speed ratios, but is almost totally
    irrelevant today.

mrjbq7• 14 years ago

Why is this a frontpage HN post?

carbuncle• 14 years ago

"No"

ta121213• 14 years ago

I wish I knew, but I got downvoted for a constructive attempt at pointing it out.

zerostar07• 14 years ago

What was that law that said that all titles that ended with a question mark can be answered "No"?

cnu• 14 years ago

Betteridge's Law of Headlines - http://en.wikipedia.org/wiki/Betteridges_Law_of_Headlines

rootedbox• 14 years ago

It may or may not be.. Its dependent on CPU, and Compiler.

Why is &#60; faster than &#60;=?

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Why is < faster than <=?