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Date:      Mon, 22 Apr 2019 22:02:08 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 237429] bhyve: Performance regression after 12 upgrade
Message-ID:  <bug-237429-27103-tZlCgpEcoA@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-237429-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-237429-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D237429

--- Comment #11 from doctor@doctor.nl2k.ab.ca ---
(In reply to Rodney W. Grimes from comment #10)
(In reply to doctor from comment #9)
> 1) In case I wish to expand to say 64G RAM I can do so without trying to =
rebuild the server.
Ok, valid, thanks for clarifying.

Well  small server.

> 2)Running UFS not ZFS.  Did I forget to mention this?
Your system shows it has loaded ZFS:
ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
you can say your not using it, but your dmesg says differently.

I know I have it enable,  would like to experiment with a hybrid UFS / ZFS
system.

> 3) In 11.2 There were not problems.  in 12.0 These problems suddenly mani=
fested.

Are you certain that the only change is that of from 11.2 to 12.0,
or did some other change, perhaps a change not considered is the
cause of issues.  I am simply trying to identify what performance
would be low on 12.0 independent of any prior status.

I do have a 2M ps axww | top -t file That needs to be added.


> 4) I was able to put up to 8 VM in 11.2 and below without issue.
8 VM's with 4G each on 11.2 with 16G of memory, I do not accept this as tru=
e,
that is 32G of memory commit + host memory needs.  That should of been tras=
hing
itself unless those 8vm's are pretty well idle

They idle for the most part on 11.2 .

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