I just wanted to give a quick update. I still have to perform a "real world" test using the server with more than 300 CPUs, but meanwhile I was able to test the Jammy QEMU from my PPA using a 12-core machine and it seems like we won't need to backport any patches there either. Here's the command line I used:
Hi there,
I just wanted to give a quick update. I still have to perform a "real world" test using the server with more than 300 CPUs, but meanwhile I was able to test the Jammy QEMU from my PPA using a 12-core machine and it seems like we won't need to backport any patches there either. Here's the command line I used:
$ sudo qemu-system-x86_64 -M pc-q35- jammy-maxcpus, accel=kvm, kernel- irqchip= split -device intel-iommu, intremap= on -smp cpus=300, maxcpus= 300 -enable-kvm -net none -m 4096M -nographic -kernel /boot/vmlinuz -initrd /boot/initrd.img -chardev stdio,mux= on,id=char0 -mon chardev= char0,mode= readline -serial chardev:char0 -append "console=ttyS0"
Upon booting and getting dropped into the initramfs shell, I did a "cat /proc/cpuinfo" and verified that the 300 vCPUs were correctly listed there.
So yeah, good news :-).