Date: Fri, 28 Sep 2018 16:47:07 +0200 From: Jakub Chromy <hicks@cgi.cz> To: "freebsd-virtua." <freebsd-virtualization@freebsd.org> Subject: Re: New bhyve user Message-ID: <60055d7f-c378-7242-5bd5-7f5b60779b61@cgi.cz> In-Reply-To: <54298eaf-dcc1-fffb-fb01-1519eac7bd72@ghislain.net> References: <2edf93d1-58c2-92bc-48e2-92a493a36e7e@druid.net> <2a95db911caf43afba6408423597533c@SERVER.ad.usd-group.com> <54298eaf-dcc1-fffb-fb01-1519eac7bd72@ghislain.net>
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>
> So if one guest launch a lot of cpu hungry thread it could "starve"
> the others guests with less thread usgin cpu time.
As far as what I heard here on this forum, you should NOT overcommit the
vCPUs.
When you keep the number of vCPUs assigned to your vms lower than
physical CPUs (= hyperthreaded cores), you should be fine.
--
regards
Jakub Chromy
CGI Systems div.
----------------
CGI CZ s.r.o.
sales@cgi.cz
775 144 257
234 697 102
www.cgi.cz
>
> So if one guest launch a lot of cpu hungry thread it could "starve"
> the others guests with less thread usgin cpu time.
>
> Correct me if i read that wrong :)
>
> Ghislain.
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