$ time openssl genrsa 15360
Generating RSA private key, 15360 bit long modulus
impressive… mine was:
Memory – 62.4 GiB
Processor – Intel® Core™ i7-3930K CPU @ 3.20GHz × 12
Only question is how did it take nearly twice as long for my beastly machine? What kind of system are you running this test on?
I’m not sure why that’s the case. I believe it is a single-processor process.
My box is a Intel® Core™ i7-3520M CPU @ 2.90GHz × 4 with 4GB of RAM.
Are both systems using RDRAND?
Andy, your gonna be really mad :)
My laptop has 4gb ram and a 1.4ghz i3 processor.
model name : Intel(R) Core(TM) i7-3537U CPU @ 2.00GHz
MemTotal: 3739636 kB
On a x61t:
Intel Core2Duo L7500, 1,6GHz
I think it depends heavily on what else you’re doing at the moment. My laptop is mostly just the input for my tower, it only runs thunderbird and awesome-wm while working at my station.
Your results are not going to be repeatable …..
On my laptop (i7 3840QM, Turbo Boost @ 2.8GHz, 32GB RAM)
I ran 1 instance and got:
I ran 6 instances concurrently and got:
So …. a a test CPU vs Task vs Time …. it could take anywere from 0m19.863s to 6m19.305s on the same gear (depending on the initial seed value from entropy that you get?)
Yup, Eric …… it’s definately single threaded :-)
$ top shows than almost no memory is consumed and the process takes all the CPU, thus execution time differences must come from somewhere else than HW capabilities.
With my average box with Intel(R) Pentium(R) 4 CPU 3.20GHz took
Not repeatable because probabilistic prime gen
Fill in your details below or click an icon to log in:
You are commenting using your WordPress.com account. ( Log Out / Change )
You are commenting using your Twitter account. ( Log Out / Change )
You are commenting using your Facebook account. ( Log Out / Change )
You are commenting using your Google+ account. ( Log Out / Change )
Connecting to %s
Notify me of new comments via email.
Enter your email address to follow this blog and receive notifications of new posts by email.