Check files under /etc/tune-profiles/ HTH Martin Pavlik RHEV QE > On 14 Jan 2015, at 13:55, mad Engineer <themadengin33r@xxxxxxxxx> wrote: > > Thanks Martin, > How can we see the changes made by tuned? > for "virtual guest" i see it changes scheduler to deadline.Is there > any way to see what parameters each profile is going to change > > Thanks > > On Wed, Jan 14, 2015 at 6:14 PM, Martin Pavlík <mpavlik@xxxxxxxxxx> wrote: >> 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
