Let me post in this forum, even if my issue is related to an old ESXi 3.5.0 server.
I need to troubleshoot performance problems, because my guest VM get slower and slower.
I look at the performances and don't see (maybe I look at the wrong place...) any meaningful problem: CPU usage (average) range from 40 to 80%, memory usage (average) range from 77 to 84%, memory granted (average) is about the same as physical memory, uptime is 36 days.
Does anybody see any meaningful problem?
Should I reboot the host on a per week basis?
What further counter should I look at?
Is there any documentation about the right performance troubleshooting procedure?
Suggestions, pointers and hints welcome!
Regards
marius
Here are some additional links and are very good at explaining everything.
esxtop:
http://communities.vmware.com/docs/DOC-5240
vSphere
http://communities.vmware.com/docs/DOC-10352
CPU
http://communities.vmware.com/docs/DOC-5420
Storage
http://communities.vmware.com/docs/DOC-5490
http://communities.vmware.com/docs/DOC-6490
MEM
http://kb.vmware.com/kb/1008885
ESXTOP
http://www.yellow-bricks.com/esxtop/
http://communities.vmware.com/docs/DOC-9279
A couple of questions first - how many VMs are running on this ESXi host? What are their configurations in terms of memory and vCPUs? Did this recently start happening or is this been a problem since the server cam on line? What is the configuration of your ESXi host - memory, physical CPUs, how do you connect to storage?
The key metrics to look at are:
Some best pracices -
If you find this or any other answer useful please consider awarding points -
Here are some additional links and are very good at explaining everything.
esxtop:
http://communities.vmware.com/docs/DOC-5240
vSphere
http://communities.vmware.com/docs/DOC-10352
CPU
http://communities.vmware.com/docs/DOC-5420
Storage
http://communities.vmware.com/docs/DOC-5490
http://communities.vmware.com/docs/DOC-6490
MEM