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Date:      Tue, 26 Nov 2019 18:59:39 -0800 (PST)
From:      "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net>
To:        Wojciech Puchar <wojtek@puchar.net>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: what's got broken in bhyve after upgrade
Message-ID:  <201911270259.xAR2xdS3005661@gndrsh.dnsmgr.net>
In-Reply-To: <alpine.BSF.2.20.1911260758100.3103@puchar.net>

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> upgraded to
> 
> FreeBSD puchar.net 11.3-STABLE FreeBSD 11.3-STABLE #0 r354807: Fri Nov 22 
> 22:45:43 CET 2019     root@puchar.net:/usr/src/sys/amd64/compile/puchar 
> amd64
> 
> 
> i have setting hw.vmm.topology.cores_per_package=16 in loader.conf

I do not have a 11.3-STABLE reference box, but could you check
man bhyve
and see if it has the new -c options:

SYNOPSIS
     bhyve [-abehuwxACHPSWY]
           [-c [[cpus=]numcpus][,sockets=n][,cores=n][,threads=n]]


If it has that form of -c you SHOULD stop using hw.vmm.topology.cores_per_package
and start to use the new -c options.

I do not believe this feature is in 11.3, but it may of been merged.

> 
> 
> before upgrade - bhyve virtual machines (windows 7) see one CPU with 2 or 
> 4 cores (depending how much i use with -c option in bhyve).
> 
> after upgrade - bhyve sees single core CPUs. Which in case of windows 7 
> pro means no more than 2 cores will be used.
> 
> What's wrong and how to fix it?

	-c cores=4
or
	-c cores=2

Note unspecified values default to 1.  See the man page for additional details.


-- 
Rod Grimes                                                 rgrimes@freebsd.org



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