Ordinary-Mistake-279

joined 10 months ago
[–] [email protected] 1 points 10 months ago (1 children)

yes it shows you the cores, that's not the question but does the scheduler use them all or is he throwing the tasks between the cores which results in more latency/overhead to switch also the level1 or 2 cache inbetween. i running also linux for more then 5 years know, but it really would be a game changer if you not use all potential of all cores you have on your rig ... i really want to believe it, because that would have a great impact on mutlicore systems

 

i just read now a article about hardcoded scaling on linux, which is a maximum of 8 cores (or maybe even threads?) a few days ago also read that the cpu scheduler get's an overhaul so i hope they fix this issue, too. Article: https://thehftguy.com/2023/11/14/the-linux-kernel-has-been-accidentally-hardcoded-to-a-maximum-of-8-cores-for-nearly-20-years/

[–] [email protected] 1 points 10 months ago

2 core's more and a bit more cache... idk i've that's worth it. 40 threads are more then enough for my use cases. and if not, i would rather ugrade to >266X CPU instead of switching an v3 to an v4.

[–] [email protected] 1 points 10 months ago (2 children)

bought an used hp proliant dl380 gen9 with 128GB ECC RAM and 2xE-5 2650v3 xeon 2x500W power supplies... just to test installed ubuntu got powertop, set acpi devices to autotune, modded the ilo for fan adjustment and i am at 55W in idle.

before i have had a self made ryzen "server" with Ryzen 3700x 32GB RAM and a Nvidia GTX 1080 sitting at 130W Idle....

thats what i have to say for industrial servers ;-)