Questions about cpu-cycles
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What would be faster: Spliting a 64-bit word into 16 nibbles and entering them in S-Boxes or using an entire 64-bit word directly as an entry?
This question is related to cryptography, but I believe I'm asking in right place (not in Crypto Stackexchange).
Kuznyechik block cipher splits a 64-bit word into 16 nibbles (4-bits) and use them as e...
phantomcraft
Votes: 0
Answers: 0
Measure CPU clock cycles per operation in python
I'd like to know how'd you measure the amount of clock cycles per instruction say copy int from one place to another?
I know you can time it down to nano seconds but with today's cpu's that resolution...
Pongo
Votes: 0
Answers: 1
Measuring clock cycles of another PID
I am looking to measure total clock cycles used by a program. I am hoping to measure this from another process.
clock_t can be used to measure a block of code but doesn't work for me because I want t...
Erick Arce
Votes: 0
Answers: 1
What is happening struct padding or packing in 64 bit computer
Code 1
#include <stdio.h>
//structure var
struct var{
char a;
};
int main()
{
struct var r;
printf("%ld\n", sizeof(r));
return 0;
}
Output: 1
I know the concept of padding and p...
F.C. Akhi
Votes: 0
Answers: 0