Gordon Messmer wrote: > On 06/02/2017 04:32 AM, hw wrote: >> What may cause the high CPU load? > > > Offhand, it's hard to say. I don't see similar behavior. Can you post the libvirt XML definitions for those VMs somewhere? pastebin maybe? What's the output of "rpm -qa qemu\*"? qemu-img-1.5.3-126.el7_3.6.x86_64 qemu-kvm-tools-1.5.3-126.el7_3.6.x86_64 qemu-kvm-common-1.5.3-126.el7_3.6.x86_64 qemu-kvm-1.5.3-126.el7_3.6.x86_64 The definitions aren´t too long, I could post them here. There´s nothing special about them AFAICT; I disabled USB and am trying to use kvmclock. I´m finding the number of "Local timer interrupts" suspicious. From 'cat /proc/interrupts' for CPU0: Tue Jun 6 20:01:53 CEST 2017: 217433736 Thu Jun 8 13:23:04 CEST 2017: 350172149 That seems an awful lot of interrupts. Is this normal? There´s also a huge amount of "Rescheduling interrupts" (102113959 earlier, now 209740910). The VMs are pinned to CPUs, so what´s being rescheduled so frequently? I can observe that CPU load of the host goes up with increases in network traffic of the guest. Is it a bad idea to assign a bonding interface to a bridge? > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos