----- Original Message -----
From: "Punit Dambiwal" <hypunit@gmail.com> To: "Doron Fediuck" <dfediuck@redhat.com> Sent: Wednesday, October 22, 2014 4:19:56 AM Subject: Re: [ovirt-users] Guest VM Running 160 RCU Processes
Hi Darrell,
I haven't open a BZ for the same...please let me know how i can open BZ ??
Doron@ yes i am referring the "MaxNumOfVmCpus"...as my host machine has 10 CPU with HT so totally 20cpus...thats' why i modify this setting with MaxNumOfVmCpus=20...as i can not assign 160 Vcpus as my host has 20 only....
Thanks, Punit
Punit, did you set the HT flag in the cluster policy? See: http://www.ovirt.org/OVirt_Administration_Guide#Optimization_Settings_Explai... You should set "Count Threads As Cores" or the engine will ignore your threads.
On Wed, Oct 22, 2014 at 12:29 AM, Doron Fediuck <dfediuck@redhat.com> wrote:
Hi Punit, are you referring to MaxNumOfVmCpus? If so I do not see how this will have an effect other than not allowing you to run VMs with too many CPUs.
----- Original Message -----
From: "Punit Dambiwal" <hypunit@gmail.com> To: "Doron Fediuck" <dfediuck@redhat.com> Sent: Tuesday, October 21, 2014 5:24:02 AM Subject: Re: [ovirt-users] Guest VM Running 160 RCU Processes
Hi Doron,
I solved the issue with lower down the max vcpu setting in the engine-config...
Thanks, Punit
On Mon, Oct 20, 2014 at 8:34 PM, Doron Fediuck <dfediuck@redhat.com> wrote:
----- Original Message -----
From: "Punit Dambiwal" <hypunit@gmail.com> To: users@ovirt.org, "Dan Kenigsberg" <danken@redhat.com>, "Itamar Heim" <iheim@redhat.com>, ahadas@redhat.com Sent: Monday, October 20, 2014 5:58:20 AM Subject: Re: [ovirt-users] Guest VM Running 160 RCU Processes
Hi,
Is there any body suggest me good way to handle it....??
On Fri, Oct 17, 2014 at 3:15 PM, Punit Dambiwal < hypunit@gmail.com
wrote:
Hi,
I have one Ovirt cluster and under this cluster all the guest
machines (such
as centos,ubuntu,debian etc) almost 160 RCU processes running....
i searched on google about the RCU (It's kernel process "read-copy-upate")
http://lwn.net/Articles/518953/
I want to know how i can modify this 160 processes to 10-20 or how i can to disable it....is there any bed impact if i disable it....
Thanks, Punit
Hi Punit, we need to do a bit of a research on this one. In order to make sure we keep track of it, do you mind opening an RFE (BZ) with all the relevant details, including the hardware that you're using, guests config, how busy the guests/host are, Which hypervisor is used and the versions.
Thanks, Doron