a/blog
Archived
1
1
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Small addition

Browse source
This commit is contained in:
Anthony Wang 2021-01-07 16:13:51 -06:00
parent 3b318fc8c0
commit cec54e2e18
Signed by: a
GPG key ID: 6FD3502572299774
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
_posts/2021-01-07-fun-with-qemu-kvm-2.md
View file

@ -10,7 +10,7 @@ tags: ["Linux", "Virtualization"]
As far as I know, there aren't any 255 core processors on the market. Yet. But that doesn't stop us from making a virtual machine using [QEMU/KVM](https://ta180m.github.io/2020/11/18/fun-with-qemu-kvm.html) and [SMP](https://en.wikipedia.org/wiki/Symmetric_multiprocessing) with an absurd number of processors, as shown above.
Why 255? Well, that's the limit apparently. Yeah, it sucks. I wish it was higher too. But if you're running more cores than the number of physical cores available on your computer, there's no benefit and you'll probably see worse performance. No one even has that many physical cores to begin with, so there's no incentive for QEMU/KVM to support even more cores.
Why 255? Well, that's the limit apparently. Yeah, it sucks. I wish it was higher too. But if you're running more cores than the number of physical cores available on your computer, there's no benefit and you'll probably see worse performance. No one even has that many physical cores to begin with, so there's no incentive for QEMU/KVM to support even more cores. (virt-manager also warns you from against a VM more cores than you actually have. It's a bad idea.)
And why [Linux Mint 20.1](https://www.linuxmint.com/rel_ulyssa_cinnamon.php) MATE? Well, it happened to have been released lately, and I haven't had much exposure with MATE, so I thought it would be the perfect opportunity to download an ISO and take it for a spin with 255 cores.