On 4 February 2017 at 03:59, Takashi Matsuzawa wrote: > So, if virtualization platform provides what intel-core* builds expects, > then I will see a better performance with them, rather thatn qemu* builds. > Or qemu* builds provide particular features that suites well with VM, > other thna its 'safe' behavior? > The qemu machines enable all the 'virtio' drivers that for example instead of talking to a pretend model of a real ethernet board, talk directly to the container. This makes them much faster. The meta-intel machines enable various drivers and compiler options that are specific to or tailored for real modern x86 hardware, so will perform better than a lowest common denominator kernel build. Ross