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Rev

Yes I haven't done any formal profiling but I have ran them both a few times and am capable of telling 2 seconds from 3 seconds. Anyway thanks for answering. I already picked up a good deal of info here

rosghub
– rosghub

2016-11-01 06:50:05 +00:00
Commented Nov 1, 2016 at 6:50
10

It's probably not just a measurement error, the hand-written asm code is using a 64-bit DIV instruction instead of a right-shift. See my answer. But yes, measuring correctly is important, too.

Peter Cordes
– Peter Cordes

2016-11-01 07:05:47 +00:00
Commented Nov 1, 2016 at 7:05
7

Bullet points are more appropriate formatting than a code block. Please stop putting your text into a code block, because it's not code and doesn't benefit from a monospaced font.

Peter Cordes
– Peter Cordes

2016-11-01 09:33:25 +00:00
Commented Nov 1, 2016 at 9:33
22

I don't really see how this answers the question. This isn't a vague question about whether assembly code or C++ code might be faster---it is a very specific question about actual code, which he's helpfully provided in the question itself. Your answer doesn't even mention any of that code, or do any type of comparison. Sure, your tips on how to benchmark are basically correct, but not enough to make an actual answer.

Cody Gray
– Cody Gray ♦

2016-11-01 14:51:39 +00:00
Commented Nov 1, 2016 at 14:51

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create code fences with backticks ` or tildes ~
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like so
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```
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