On 5/5/23 17:23, Tomek CEDRO wrote:
On Fri, May 5, 2023 at 3:38 PM Ed Maste wrote:
FreeBSD supports up to 256 CPU cores in the default kernel configuration
(on Tier-1 architectures). Systems with more than 256 cores are
available now, and will become increasingly common over FreeBSD 14’s
lifetime. (..)
Congratulations! :-)
I am looking after AMD Threadripper with 64 cores 2 threads each that
will give 128 CPU to the system.. maybe this year I could afford that
beast then I will report back after testing :-)
In upcoming years variations of RISC-V will provide unheard before
number of CPU in a single SoC (i.e. 1000 CPU) at amazing power
efficiency and I saw reports of prototype with 3 x SoC of this kind on
a single board :-)
https://spectrum.ieee.org/risc-v-ai
Hi,
Maybe it makes sense to cluster CPU's in logical groups somehow. Some
synchronization mechanism like EPOCH() are O(N²) where N is the number
of CPUs. Not in the read-case, but in the synchronize case. It depends a
bit though. Currently EPOCH() is executed every kern.hz .
--HPS
