On Thu, Sep 18, 2014 at 8:48 AM, Alex Demitri <[email protected]> wrote:
> Hosts are dedicated to these VMs. Hosts are configured as 20 vCPUs / 384 gb
> ram per host. There are three hosts in the cluster. Only VMs living on the
> cluster are the jenkins slaves (3 vms) - jenkins master (1 vm).
>
Have you run the jobs on native hardware to know what times to expect?
I'd normally expect less than 10% overhead from VM infrastructure -
except where you have disk head contention among guests or memory or
CPU overcommit. I think current versions of VMware are pretty good at
CPU overcommit but older versions would not give a timeslice unless
the full number of virtual CPUs for the guest could be allocated at
once.
Beyond that you have to look at what the jobs are doing and what
resources they use.
--
Les Mikesell
[email protected]
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