100% CPU utilization on VM host machine

[Where can i get EVA5000]

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

[Dave Olker]

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]

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]

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]

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]

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]

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

[karthikbalu]

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.