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100% CPU utilization on VM host machine

 
Where can i get EVA5000
Occasional Advisor

100% CPU utilization on VM host machine

Hi All,

 

 

100% CPU utilization on VM host machine but on VM guests cpu utilization always is less than 5%.

 

Could you please let me know what could be the issue here.

 

Regards,

Mahesh

 

P.S. This thread has been moved from HP-UX>System Administration to HP-UX > Virtualization. -HP Forum Moderator

7 REPLIES 7
Dave Olker
HPE Pro

Re: 100% CPU utilization on VM host machine

Have you verified which processes/threads are consuming the high CPU time on the VSP?  What does Glance or top show?

 

Dave

Where can i get EVA5000
Occasional Advisor

Re: 100% CPU utilization on VM host machine

Hi Dave,

 

 

These are the process causing this issue
hpvmapp 12544 root 55.8 22 10.1 34.4gb 49.2gb OTHER
hpvmapp 4020 root 8.6 20 1.7 11.6gb 32.6gb OTHER
Dave Olker
HPE Pro

Re: 100% CPU utilization on VM host machine

Assuming you cut/pasted that output from Glance, the columns line up as follows:

 

                     User       CPU %     Thrd   Disk     Memory       Block
Process Name   PID   Name     (1600% max)  Cnt IO rate   RSS    VSS      On
-----------------------------------------------------------------------------
hpvmapp       12544  root       55.8        22   10.1    34.4gb 49.2gb OTHER
hpvmapp        4020  root        8.6        20    1.7    11.6gb 32.6gb OTHER

 

 

Which means the guests are using 55.8% and 8.6% CPU respectively, or 64.4% of a single CPU.  How many CPUs are on the VSP and what is taking up the rest of the CPU time?

Where can i get EVA5000
Occasional Advisor

Re: 100% CPU utilization on VM host machine

Hi Dave,

 

On this HPVM HOST machine 4 CPUs and 2 cores per CPU. Please see below output and let me know. On this host Memory utilization is also 100%.

 

Memory on this server is : 144.0gb

 

These are process are consuming more Memory on Host machine..

 

51633280 root     12544 hpvmapp -d aydb1dle
34199680 root      4020 hpvmapp -d  bydbledt1

 

CPU info:
   Intel(R) Itanium 2 9100 series processor (1.59 GHz, 18 MB)
   2 cores, 2 logical processors per socket
   532 MT/s bus, CPU version A1
          Active processor count:
          4 sockets
          8 cores (2 per socket)

 

 

Class       I  H/W Path  Driver    S/W State   H/W Type     Description
========================================================================
processor   0  120       processor   CLAIMED     PROCESSOR    Processor
processor   1  122       processor   CLAIMED     PROCESSOR    Processor
processor   2  124       processor   CLAIMED     PROCESSOR    Processor
processor   3  126       processor   CLAIMED     PROCESSOR    Processor
processor   4  128       processor   CLAIMED     PROCESSOR    Processor
processor   5  130       processor   CLAIMED     PROCESSOR    Processor
processor   6  132       processor   CLAIMED     PROCESSOR    Processor
processor   7  134       processor   CLAIMED     PROCESSOR    Processor

Dave Olker
HPE Pro

Re: 100% CPU utilization on VM host machine

I'm still confused.  

 

Your VSP server has 800% CPU capacity and you opened this thread saying the system is running 100% busy.  So far you've shown me two processes running on the system that combined consume 64% of a single CPU.  That means there's ~730% CPU capacity unaccounted for.

Where can i get EVA5000
Occasional Advisor

Re: 100% CPU utilization on VM host machine

Yes Dave,  730% CPU capacity unaccounted  on this host but I dont why glance is showing like this and restarted mwa as well but still same output. Can you please tell me what could be the issue.

 

-Mahesh

Highlighted
karthikbalu
Advisor

Re: 100% CPU utilization on VM host machine

Do you get the similar O/P from other monitoring utility(Vmstat, sar, top) as well? Sometimes it can be a bug from glance...

 

Is that clustered to migrate a VM's across hosts? If yes, try migrate a VM and monitor the CPU.