On 28/12/2017 18:00, Andrew Davis wrote: >> > Ok, this is interesting. Please gather a trace using > > trace-cmd record -e kvm -c -P pid-of-qemu > > for about 10 seconds; run it once right after booting, once when it > starts taking 2 seconds, one when it starts taking 4 seconds. Looks like "-c" didn't have the expected result (the man page says "Used with either -F (or -P if kernel supports it)" so maybe that's it). Assuming you have only one VM on the host, can you try again without "-c -P pid-of-qemu"? Thanks, Paolo