Displaying 6 results from an estimated 6 matches for "rt_runtime_us".
2016 Oct 28
1
How do you set real time bandwidth for a container?
When I create a VM using libvirt, the VM comes up the path
/sys/fs/cgroup/cpu/cpu.rt_runtime_us set to something like 1000000. When
I create a container however, the path
/sys/fs/cgroup/cpu/cpu.rt_runtime_us is 0. This prevents my containers
from being able to run any real time applications. I have to explicitly
echo a value into this field in order to give the container some real
time b...
2011 Feb 15
2
monitiring cpu usage via cgroup
Hi
I was asking about the fedora 14 kernel if it is good enough for cgroup
usage because
I am trying to set a cgroup under cpu subsytem ( /dev/cgroup/cpu/group1/
) that have /cpu.rt_runtime_us of 100000
while cpu.rt_period_us has a value of 1000000 i.e a ratio of 1/10 . still
when I run a task (endless loop) in that group
(cgexec -g cpu,cpuset:group1 ./test) it gets all the cpu core time that
is assigned to it ( i watch via top utility) , so it seems
that the quota set via the group...
2015 Sep 24
1
Guest cpuacct counters and others location
...CentOS 7 :
ls /sys/fs/cgroup/cpuacct/machine.slice/machine-qemu\\x2drhel6.0.scope/vcpu0
cgroup.clone_children cgroup.procs cpuacct.usage cpu.cfs_period_us cpu.rt_period_us cpu.shares notify_on_release
cgroup.event_control cpuacct.stat cpuacct.usage_percpu cpu.cfs_quota_us cpu.rt_runtime_us cpu.stat tasks
]#
RHEL6 :
ls /cgroup/cpuacct/libvirt/qemu/VM_Orion-1/vcpu0
cgroup.event_control cgroup.procs cpuacct.stat cpuacct.usage cpuacct.usage_percpu notify_on_release tasks
1) May I assume that their meanings is identical ?
2) Is this difference due to the O.S. or...
2017 Feb 06
2
Real time threads don't work in libvirt containers under CentOS 7.3
We've been using libvirt based containers under CentOS 7 and everything
has been working fine. One application we run in our containers is ctdb,
which uses SCHED_FIFO (real time) threads. This has been working without
problems until our recent upgrade to CentOS 7.3. For some reason, ctdb
is no longer able to create real time threads, and I've tried a simple
program myself that
2012 Dec 13
1
RHEL6 cgroup error after a few days of uptime
...host ~]# virsh start r04s14
error: Failed to start domain r04s14
error: Unable to create cgroup for r04s14: No such file or directory
[root at virthost ~]# find /cgroup | grep r04s14
/cgroup/cpu/libvirt/qemu/r04s14
/cgroup/cpu/libvirt/qemu/r04s14/cpu.rt_period_us
/cgroup/cpu/libvirt/qemu/r04s14/cpu.rt_runtime_us
/cgroup/cpu/libvirt/qemu/r04s14/cpu.stat
/cgroup/cpu/libvirt/qemu/r04s14/cpu.cfs_period_us
/cgroup/cpu/libvirt/qemu/r04s14/cpu.cfs_quota_us
/cgroup/cpu/libvirt/qemu/r04s14/cpu.shares
/cgroup/cpu/libvirt/qemu/r04s14/cgroup.event_control
/cgroup/cpu/libvirt/qemu/r04s14/notify_on_release
/cgroup/cpu/l...
2015 Oct 29
2
How to retrieve legacy cgroups location ?
Hi,
As told in "Control Groups Resource Management" libvirt page :
Legacy cgroups layout
Prior to libvirt 1.0.5, the cgroups layout created by libvirt was different from that described above, and did not allow for administrator customization. Libvirt used a fixed, 3-level hierarchy libvirt/{qemu,lxc}/$VMNAME which was rooted at the point in the hierarchy where libvirtd itself was