111
cat /proc/sys/kernel/random/uuid [I ❤️ Linux] (feddit.org)
submitted 1 day ago* (last edited 13 hours ago) by A_norny_mousse@feddit.org to c/linux@programming.dev
33 comments fedilink hide all child comments

That's all. I just found this in a random script. Generates a random UUID every time it's called. I didn't know.

Of course I can also use uuidgen or pipe /dev/(u)random into something to get a random alphanumeric string - but this is built right into the kernel!

In /proc/sys/kernel/random/, there's also boot_id which ~~seems to do the same~~ is static, and some tweakable parameters.

❤️🐧

you are viewing a single comment's thread
view the rest of the comments
[-] victorz@lemmy.world 1 points 15 hours ago

Can you guarantee that each process will run on its own core?

[-] Hamartiogonic@sopuli.xyz 2 points 14 hours ago

Absolutely not, quite the opposite actually. However, the end result is close to 100% CPU load, which is good enough for some purposes. Let’s say you want to test the performance of your CPU cooler, or overclock stability, this should good enough. There are also dedicated tools for people with more advanced needs.

this post was submitted on 24 May 2025
111 points (97.4% liked)

Linux

7420 readers
265 users here now

A community for everything relating to the GNU/Linux operating system

Also check out:

Original icon base courtesy of lewing@isc.tamu.edu and The GIMP

founded 2 years ago
MODERATORS
Ategon@programming.dev
anzo@programming.dev
dwraf_of_ignorance@programming.dev