In this table, for example, cryptographic algorithm performance is measured in cycles per byte for symmetric ciphers, and in cycles per operation for asymmetric ciphers.

What does "cycle" here mean, exactly? And does one AES or RSA decryption always need the same amount of cycles, or can it be different every time? (If it's always the same number of cycles for a cipher, then the time needed to decrypt must always be the same for different ciphertexts.)

In this table of the "Crypto++ 5.6.0 Benchmarks", for example, cryptographic algorithm performance is measured in cycles per byte for symmetric ciphers, and in cycles per operation for asymmetric ciphers.

What does "cycle" here mean, exactly? And does one AES or RSA decryption always need the same amount of cycles, or can it be different every time? (If it's always the same number of cycles for a cipher, then the time needed to decrypt must always be the same for different ciphertexts.)

as you can see here  , cryptographic algorithms performance is determinate by cycle per byte for symmetric ciphers and cycle per operation for asymmetric ciphers.

what is cycle meaning exactly  ? and is that always same amount of cycles for one AES or RSA decryption or it can be different cycles every time  ? (if its always same cycle for a cipher then timing must be always same for different ciphertexts)

In this table, for example, cryptographic algorithm performance is measured in cycles per byte for symmetric ciphers, and in cycles per operation for asymmetric ciphers.

What does "cycle" here mean, exactly? And does one AES or RSA decryption always need the same amount of cycles, or can it be different every time?   (If it's always the same number of cycles for a cipher, then the time needed to decrypt must always be the same for different ciphertexts.)

as you can see here , cryptographic algorithms performance is determinate by cycle per byte for symmetric ciphers and cycle per operation for asymmetric ciphers.

what is cycle meaning exactly ? and is that always same amount of cycles for one AES or RSA decryption or it can be different cycles every time ? (if its always same cycle for a cipher then timing must be always same then)

as you can see here , cryptographic algorithms performance is determinate by cycle per byte for symmetric ciphers and cycle per operation for asymmetric ciphers.

what is cycle meaning exactly ? and is that always same amount of cycles for one AES or RSA decryption or it can be different cycles every time ? (if its always same cycle for a cipher then timing must be always same for different ciphertexts)