search for: blkiotun

Hi all, I want to limit the I/O bandwidth inside the container, so I used virsh command blkiotune. But when I enter a command: virsh # blkiotune lxcguest --weight 250 I get following errors: error: Unable to change blkio parameters error: Requested operation is not valid: blkio cgroup isn't mounted I also have blkio cgroup mounted. What can be the problem? Thanks in advance. Regards,...

Hello! We are using oVirt in our infrastructure, which uses libvirt as backend. Last time we needed to activate storage QoS aka libvirt blkiotune parameters. So some questions appeared about how libvirt limitation mechanism works: 1. What happened to overlimit storage traffic in small time period after we apply blkiotune parameters on high loaded virtual machine on fly: a) All over-limit traffic pulled into some queue, where all disk trans...

Hi, Hu Tao I noticed that in your patch about blkiotune.device_weight, You set the device blkio weight value between 100 and 1000. But from the kernel document, I see that the blkio weight can be set from 10 to 1000. Why do you limit the weight minimum to 100 rather than 10 ? Looking forward your explanation, thanks! -------------- Best regards! Gua...

...<period>1000000</period> </cputune> <memtune> <hard_limit unit="M">1024</hard_limit> <soft_limit unit="M">128</soft_limit> <min_guarantee unit="M">64</min_guarantee> </memtune> <blkiotune> <weight>800</weight> </blkiotune> <memory unit="KiB">102400</memory> <os> <type>exe</type> <init>/bin/bash</init> </os> <clock offset="utc"/> <on_poweroff>destroy</on_po...

Hi, is there a way to configure blkio via libvirt (xml)? Regards Erkan -- ?ber den grenzen mu? die freiheit wohl wolkenlos sein

...rt 0.10.2 and qemu-kvm-1.2.0, both compiled from source, on CentOS 6. I've got a working blkio cgroup hierarchy which I'm attaching guests to using the following XML guest configs: VM1 (foreground): <cputune> <shares>2048</shares> </cputune> <blkiotune> <weight>1000</weight> </blkiotune> VM2 (background): <cputune> <shares>2</shares> </cputune> <blkiotune> <weight>100</weight> </blkiotune> I've tested write throughput on the host us...

...sion Compiled against library: libvir 0.9.13 Using library: libvir 0.9.13 Using API: QEMU 0.9.13 Running hypervisor: QEMU 1.1.50 # virsh list Id Name State ---------------------------------------------------- 21 f16-ppc-qcow2 running 22 f16-blkiotune running 23 f16-device-attach running # virsh domjobinfo 21 Job type: None But I have run two jobs on domain 21 [root at localhost ~]# jobs [1]- Stopped top [2]+ Stopped vi install.log I searched the domjobinfo patch g...

On Mon, Jan 13, 2020 at 01:42:24AM +0100, Oliver Dzombic wrote: > Hi, > > i am running: > > libvirt-5.6.0-5.fc31.x86_64 > 5.4.8-200.fc31.x86_64 > > > Using: > > <blkiotune> > <device> > <path>/dev/sda1</path> > <read_iops_sec>100</read_iops_sec> > <write_iops_sec>100</write_iops_sec> > <read_bytes_sec>51200000</read_bytes_sec> > <write_bytes_sec>5120000...

...> > </cputune> > <memtune> > <hard_limit unit="M">1024</hard_limit> > <soft_limit unit="M">128</soft_limit> > <min_guarantee unit="M">64</min_guarantee> > </memtune> > <blkiotune> > <weight>800</weight> > </blkiotune> > <memory unit="KiB">102400</memory> > <os> > <type>exe</type> > <init>/bin/bash</init> > </os> > <clock offset="utc"/&gt...

When I run virsh blkiotune alias --weight 100 I receive: error: Unable to change blkio parameters error: this function is not supported by the connection driver: blkio cgroup isn't mounted But I have mounted blkio: cgroup /dev/cgroup/cpu cgroup rw,relatime,cpu 0 0 cgroup /dev/cgroup/cpuacct cgroup rw,relatime,cpuacct...

Hi all, is there a way to limit the throughput (or the number of operations per seconds) of a block device? I ask because I've a couple of misconfigured VMs that are performing a lot of disk activity (swapping I'd bet but I haven't access to their OS). Since their storage is on a NFS share they are slowing down other VMs on the same share. Thank you. Davide.

Hi, I am running OpenStack Cluster and use libvirt + cgroup to limit vm’s performance https://wiki.openstack.org/InstanceResourceQuota What I am confusing is.. 1. After running a vm instance with some croup limit applied, I can’t find any related cgroup settings. 2. Can I change limit value after instance is running? like change disk_read_iops_sec from 10 to 20. One of the xml file like below.

...... OK 319) QEMU XML-2-ARGV cpu-Haswell-noTSX ... OK 320) QEMU XML-2-ARGV memtune ... OK 321) QEMU XML-2-ARGV memtune-unlimited ... OK 322) QEMU XML-2-ARGV blkiotune ... OK 323) QEMU XML-2-ARGV blkiotune-device ... OK 324) QEMU XML-2-ARGV cputune ... OK 325) QEMU XML-2-ARGV cputune-zero-shares ... OK 326) QEMU XML-2-A...

...ecified. (Laine Stump) - libvirt-guest.init: handle domain name with spaces (Philipp Hahn) - domain.rng vs. formatdomain.html#elementsUSB (Philipp Hahn) - Ignore backing file errors in FS storage pool (Philipp Hahn) - remote-protocol: implement new BlkioParameters API (Gui Jianfeng) - virsh: Adding blkiotune command to virsh tool (Gui Jianfeng) - qemu: implement new BlkioParameters API (Gui Jianfeng) - libvirt: implements virDomain{Get,Set}BlkioParameters (Gui Jianfeng) - setmem: add the new options to "virsh setmem" command (Taku Izumi) - setmem: implement the remote protocol to address the...