Sorry if I put it down so simple... I don't think it is too strange. In every program the time of execution depends on many things. It usually grows with a formula like TIME=Ts+Tg with Ts a time that is fixed even if the program doesn't do anything and Tg that grows according to how many operations it performs So for 16 bytes it is T=X+Y for 64 T=X+4Y and so on. The bigger the data the more Ts lose importance because Tg grows. Obviously thinking Tg is linear is too simple but even this way the argument is quite coherent, as you can see in the attachment.The speed is *probably* converging to a value. as you can see in the last column. YES, you're right: I don't have anything better to do than loosing time making calculations like that. I'm loosing my time trying to choose my degree thesis. :) Hope I have not written nonsense! ----- Original Message ----- From: "Paolo Serra" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, October 08, 2004 5:11 PM Subject: Is SPEED correct?
> Hi all, > the output for the command "openssl speed sha1" on my PC was: > > SIZE bytes per second processed > > 16 bytes 10623.58k > 64 bytes 34244.42k > 256 bytes 83657.47k > 1024 bytes 132907.69k > 8192 bytes 159689.39k > > The first column is the size of the data I want to calculate the digest. > > Is someone so kind to explain me why the quantity of "bytes per second > processed" grows so much when the size of the file of data to digest grows? > I think that "bytes per second processed" are bigger with a SIZE bigger, but > I still believe that this numbers are too big!! > > Thanks so much. > Have a nice day. > > Paolo SERRA > > _________________________________________________________________ > Personalizza MSN Messenger con sfondi e fotografie! > http://www.ilovemessenger.msn.it/ > > ______________________________________________________________________ > OpenSSL Project http://www.openssl.org > User Support Mailing List [EMAIL PROTECTED] > Automated List Manager [EMAIL PROTECTED] >
SPEED.xls
Description: MS-Excel spreadsheet
