With a simple bash script, I’ve monitored the entropy in /dev/random, the entropy of the Linux kernel entropy pool. Note however that the way I’ve done it, it lowers the entropy’s pool level by a few bits at every entropy’s level check. So that I’ve limited the entropy checking at a frequency of 1 measurement every 2 seconds, during 6000 seconds (1 h 40 mins).

Here’s a quick summary of the data obtained:

Min. : 728.0

1st Qu.: 929.0

Median : 986.0

Mean : 982.3

3rd Qu.:1040.0

Max. :1202.0

sd:78.52207

Here’s a histogram and a plot of the entropy pool level in function of time: