Hi, from the top of my head you could try to play with tuned both with guest and host ###Install### yum install tuned /etc/init.d/tuned start chkconfig tuned on ###usage### list the profile: tuned-adm list change your profile: tuned-adm profile throughput-performance maybe try to experiment with other profiles. HTH Martin Pavlik RHEV QE > On 14 Jan 2015, at 12:06, mad Engineer <themadengin33r@xxxxxxxxx> wrote: > > I am running RHEL6.5 as Host and Guest on HP server. > Server has 128G and 48 Core[with HT enabled.] > > 3 VMs are running 2 pinned to first 24 PCPU with proper NUMA pinning, > > Guests: > > VM1: > 6 VCPU pinned to 6 PCPU NUMA node 1,with 16G RAM > > VM2: > 6 VCPU pinned to 6 PCPU on NUMA node 0,with 16G RAM > > VM3: > 2 VCPU ,no pinning,4G RAM > > HOST > host has 10 free CPU+24 HT threads which is not allocated and is available. > Host also runs a small application that is single threaded,that uses ~4G RAM. > > Total resource to host is 10 CPU+24 HT=34 and 92G unallocated RAM[VMS > dont even use 70% of allocated RAM] also ksm is not running. > > Networking: > Uses linux bridge connected to 1Gbps eth0,with ip assigned on eth0 > [This IP is called for accessing application running on host] > All vms use virtio and VHOST is on . > > Traffic on virtual machines are ~3MBps and combined traffic on host is ~14MBps > > "VHOST-pid-of-qemu-process" sometimes uses ~35% CPU. > > > There is no packet loss,drop or latency,but the issue is with the same > setup on Vmware with same sizing of virtual machines,with the only > difference as application running on host has moved to fourth VM.So in > Vmware there are 4 VMs. > Application gives better number ie on KVM that number is 310 and on > vmware it is 570.Application uses UDP to communicate. > > I tried removing VHOST,still value is same.(I hope VHOST-NET UDP issue > is solved) > > Thanks for any help > _______________________________________________ > Users mailing list > Users@xxxxxxxxx > http://lists.ovirt.org/mailman/listinfo/users -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
