avx

There is an ongoing discussion about slow encrypted ZFS performance, e.g. here: https://github.com/openzfs/zfs/issues/15245 and here: https://github.com/openzfs/zfs/issues/15276 Obviously this is due to a regression introduced in kernel 5.15.0-82 and discussed here...

We can change the CPU to host to use AVX, but live migration is difficult in this case. AVX is supported by most server CPUs. Like aes, it would be nice to be able to use AVX while using kvm64. Example) AVX is required from MongoDB version 5 or later.

Is there a possibility to get the "original" CPU Settings inside a KVM VM ? Having inside: [root@VM ~]# cat /proc/cpuinfo | grep -E "^(flags|model nam)" model name : Common KVM processor flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx...