Andrew McGlashan wrote:
On 29/09/2015 1:36 PM, Rohan McLeod wrote:
Assembled cognoscenti; just idle curiosity really. I am wondering about , causes of anomalous difference in execution time, same application (FreeDVDDecrypter), same OS (XP x64), different boxes ?
Box 1: Asus M4A79XTD_EVO; 16GB RAM;CPU AMD Phenom II x4 (4 core) 965 3.4GHz takes about 30min for 6GB DVD, with 1 core obviously flat-chat ~100%
Box 2: Asus_P6T-intel-i7; 20GB RAM; CPU Intel i7 (4 core) 940 2.93 GHz takes about 10min for same 6GB DVD, with no core seemingly particularly active The Intel is using AES-NI whilst the AMD is not? Perhaps that's all there is to it; I think that is the most likely reason.
AES is hardware supported with many (most) i7 and many i5 CPUs.
Andrew; many thanks; yes that seems to be the answer , no sign of " AMD Phenom CPU's here: https://en.wikipedia.org/wiki/AES_instruction_set#Intel_and_AMD_x86_achitect...
Oh and if that XP boxen is connected to the Internet
Yes
, be careful, be very careful. Yes
XP has no support This is definitely the case for 32bit; but 64bit stll seems to be recieving periodic upgrades; something to do with relation to server version ?
and there are serious bugs that will never get fixed.
Wasn't that always the way ? regards Rohan McLeod