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<p dir="ltr">Memory usage > 80%: ksm kicks in. There it will run at full speed until usage is below 80%. There is an open BZ from me. Bad behaviour is controlled by mom.</p>
<p dir="ltr">Markus</p>
<div class="gmail_quote">Am 06.12.2014 15:58 schrieb mad Engineer <themadengin33r@gmail.com>:<br type="attribution">
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<div>Hello All,<br>
I am using centos6.5 x64 on a server with 48 G RAM and 8<br>
Cores.Managed by Ovirt<br>
There is only one running VM with RAM 34 G and with 6 VCPU (pinned to<br>
proper numa nodes)<br>
<br>
from top<br>
<br>
top - 06:42:48 up 67 days, 20:05, 1 user, load average: 0.26, 0.20, 0.17<br>
Tasks: 285 total, 2 running, 282 sleeping, 0 stopped, 1 zombie<br>
Cpu(s): 1.0%us, 1.4%sy, 0.0%ni, 97.5%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st<br>
Mem: 49356468k total, 33977684k used, 15378784k free, 142812k buffers<br>
Swap: 12337144k total, 0k used, 12337144k free, 343052k cached<br>
<br>
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND<br>
101 root 25 5 0 0 0 R 27.4 0.0 5650:04 [ksmd]<br>
26004 vdsm 0 -20 3371m 64m 9400 S 9.8 0.1 1653:27<br>
/usr/bin/python /usr/share/vdsm/vdsm --pidfile /var/run/vdsm/vdsmd.pid<br>
20963 qemu 20 0 38.5g 33g 6792 S 3.9 71.6 5225:43<br>
/usr/libexec/qemu-kvm -name Cinder -S -M rhel6.5.0 -cpu Nehalem<br>
-enable-kvm -m 34096 -realtime mlock=off -smp<br>
6,maxcpus=160,sockets=80,c<br>
<br>
from /sys/kernel/mm/ksm<br>
pages_unshared 7602322<br>
pages_shared 207023<br>
pages_to_scan 64<br>
pages_volatile 31678<br>
<br>
Any idea why ksmd is not coming to normal CPU usage ,on a different<br>
server ksmd was disabled and for testing when i enabled it initially<br>
CPU usage was high but later settled down to 3% ,in that host i have 4<br>
VMs running.<br>
<br>
Before turning off ksmd can any one help me find out why ksmd is<br>
behaving like this.Initially it had 2 virtual machines,because of high<br>
CPU utilization of this guest other is migrated to another host.<br>
<br>
Thanks<br>
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