3 ms·

KVM maintainer here. Virtualization still has slightly better overhead on Intel for several workloads. Even with all mitigations enabled (they hardly affect AMD

KVM maintainer here. Virtualization still has slightly better overhead on Intel for several workloads. Even with all mitigations enabled (they hardly affect AMD times), AMD is sitting at about 3000 clock cycles vs 2000 for Intel.

sascha_sl 7y ago
I've never heard about this, genuinely curious what workloads those are.
- bonzini 7y ago
  Anything that causes the guest to go to sleep (HLT) a lot, for example message passing between two processes on two different VMs. You can try TCP_RR from netperf.