Messages in this thread | | | Date | Thu, 24 Sep 2015 15:00:32 -0500 | From | Jeff Epler <> | Subject | Re: [PATCH 1/3] Make /dev/urandom scalable |
| |
On Thu, Sep 24, 2015 at 03:11:23PM -0400, Austin S Hemmelgarn wrote: > I will make a point however to run some tests over the weekend on a > current kernel version (4.2.1), with the current dieharder version I > have available (3.31.1).
Please report your findings. If urandom is worse than AES_OFB in statistical tests, we need to know about it.
I'm an hour into some test-to-failure runs of diehard_count_1s_str on various RNGs -- urandom, AES_OFB, mt19937_1999, and rand48. So far at psamples >=29000 none have failed, so there's no result to report. (test 8 was chosen by mere human pseudorandomness; hey, it finds in <2s that RANDU is a flawed generator)
dieharder -d 8 -g 205 -Y 2 -k 2 dieharder -d 8 -g 200 -Y 2 -k 2 dieharder -d 8 -g 14 -Y 2 -k 2 dieharder -d 8 -g 22 -Y 2 -k 2
If the results are other than "both urandom and aes_ofb were running when I had to reboot my laptop", I'll report my results as well.
Jeff
| |