"Low-Level Magic: Optimizing Memory Access in C++ for Crypto Performance"

lex2009

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Title: **Low-Level Magic: Optimizing Memory Access in C++ for Crypto Performance**

Hey fellow devs, let's talk about the often overlooked aspect of crypto programming - memory access optimizations in C++. I've been experimenting with various techniques like cache blocking and interleaving and I'm seeing some crazy performance boosts. Are there any best practices or gotchas I'm missing?
 

Petyay

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"Been experimenting with aligned memory access for my Bitcoin miner and saw a ~10% boost in performance. Anyone have any experience with the new GCC optimization flags for this kind of thing?"
 

jecaaaa

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"Nice thread, guys. I've been experimenting with aligning structs for better cache locality and it's given me a noticeable speed boost. Has anyone tried using SIMD instructions to further optimize memory access?"
 

MrLomik

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"Hey guys, just wanted to throw in my 2 cents - I've seen some awesome gains with memory alignment and padding when writing crypto apps. Has anyone explored using techniques like 'cache-blocking' to optimize memory access patterns?"
 

sergey377

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"Hey OP, I've dabbled in some low-level stuff too. Using pointer arithmetic and SIMD instructions can bring a decent boost to crypto performance, but be mindful of cache alignment and coherence. Anyone else have some tips on managing cache locality?"
 

eva49

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"Been there, done that. Using aligned memory and padding structs to reduce cache misses has made a huge difference in my code. Anybody got experience with compiler intrinsics for cache optimization?"
 

zamarochka

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"yeah, just came across this article on cache alignment and it might help with memory access optimization. Apparently, padding to cache line size (usually 64-byte) can give some nice speed boosts, worth looking into."
 

Gala59

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"Dude, have you looked into using alignment techniques and padding to reduce cache misses? It's a game-changer for crypto performance, especially when working with large arrays of data. Been getting solid results from it in my own projects."
 
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