[Bug 200447] Multiple time-related tests are having issues with Jenkins/Bhyve in the past few months; Jenkins/Bhyve on the cluster is non-performant/less deterministic compared to VMware Fusion 7

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200447

--- Comment #5 from Garrett Cooper,425-314-3911 <ngie at FreeBSD.org> ---
(In reply to Allan Jude from comment #4)

We run into these issues all the time when our NFS stores go away for VMware
ESXi hosted VMs at $work. That's why I was curious about how things are backed
when running the Jenkins jobs.

If things are truly hosted over NFS, that's horrible for performance
(especially with NFS v4 when using TCP, which IIRC was the default); the test
host needs to use a local disk -- preferably a RAID-1 SSD configuration using
either graid or ZFS. The Jenkins job/infrastructure should not test out NFS
latency/performance :)...

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