openssl performance delta built-in vs custom compiled

Marcus Pollice marcus.pollice at
Sat Dec 20 21:15:43 UTC 2014

On 16.12.2014 16:33, Sam Bull wrote:
> Nevermind, I just realised the performance you're seeing is the other
> way round. I've no idea why Ubuntu's would be faster, that is strange.

I'm familiar with Gentoo and several compiler options, but none of these 
things apply here. openssl uses hand-optimized assembly code for some 
algorithms. Since the peak performance for large data size is 
approximately the same, I'd point to other optimizations like memory 
accesses. But so far I've failed to replicate the behavior of the Ubuntu 
binaries and still hope someone knowledgeable chime in.

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