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Date:      Tue, 21 Mar 2023 11:59:50 -0500
From:      Nikita Olenets <zeon@zeon.kiev.ua>
To:        Mario Marietto <marietto2008@gmail.com>
Cc:        =?UTF-8?Q?Julie_Koubov=C3=A1?= <julie@koubova.net>,  Miroslav Lachman <000.fbsd@quip.cz>, freebsd-virtualization@freebsd.org
Subject:   Re: Bhyve process consumes way too much CPU
Message-ID:  <CAJ5wse0J%2BJm3KGHMyNSQO%2BApQCEva6o0meAW4xVf3rcKyT8ukA@mail.gmail.com>
In-Reply-To: <CA%2B1FSij5XiJ9o1Sgh8S2-y31XtUJ=GLMo6q6p-w49peApcDM5w@mail.gmail.com>
References:  <CABQ-j0ZH-OrZSb866iVMba-ZfxOsovGoyLd=YZ=auOiNtm-TkA@mail.gmail.com> <CABQ-j0bbTQWhM1wgYvDvvwpxQexqgtYDgN4vj8pYp2Ttu_WHHg@mail.gmail.com> <343e827b-a1dc-b69b-9dcc-c6675deac070@quip.cz> <CA%2B1FSihrMf77N1Ec1wyndmvmJg5g6Ya9KJjKm9XcsM6o7R5V0g@mail.gmail.com> <CAJ5wse2Oyz%2B=P3ojNz8YqH79fKxJs7uOBzvMu7crkbxg_EykGQ@mail.gmail.com> <CA%2B1FSij5XiJ9o1Sgh8S2-y31XtUJ=GLMo6q6p-w49peApcDM5w@mail.gmail.com>

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Hey Mario,

Yeah, sorry. I was thinking that you were the topic starter and you were
trying to make things work under bhyve.

Have a goo day.

=E2=80=94 Nikita

On Tue, Mar 21, 2023 at 12:54 Mario Marietto <marietto2008@gmail.com> wrote=
:

> Are you talking with me ? I can install Home Assistant only on the
> hardware that I already have. Actually the best piece of hardware that I
> can use for my project (installing the chat gpt module on Home Assistant =
+
> a speech recognition software to give a voice to chat gpt) is the nvidia
> jetson nano. And If I remember correctly,it supports only Ubuntu. I can d=
o
> the same on my Workstation,but I prefer to have the ability to move the
> smaller nano within a plastic container. At the end of the day It will be
> almost the same as a vocal assistant,but uch more programmable.
>
> On Tue, Mar 21, 2023 at 5:41=E2=80=AFPM Nikita Olenets <zeon@zeon.kiev.ua=
> wrote:
>
>> Hi,
>>
>> Is there any specific reason you want it to be installed under Ubuntu?
>> I=E2=80=99m asking this because I use HasOS(home assistant OS) which is =
based on
>> Linux (can=E2=80=99t recall the distribution) and I=E2=80=99m running th=
is for three years
>> now. No issues at all. I do have even passed through ZigBee usb stick an=
d
>> it works just fine.
>>
>> On Mon, Mar 20, 2023 at 11:12 Mario Marietto <marietto2008@gmail.com>
>> wrote:
>>
>>> Hello Julie.
>>>
>>> As I said some days ago,I'm trying to install homeassistant. For the
>>> moment I'm using Ubuntu 20.04 that I have installed on the Jetson nano,=
but
>>> later I will use Ubuntu within bhyve on FreeBSD. Unfortunately,a
>>> developer,I suppose,told me that homeassistant is not supported on ubun=
tu.
>>> In Fact I tried to do that following this tutorial :
>>>
>>> https://vikoky.medium.com/jetson-nano-powered-house-29ce73f11de4
>>>
>>> but I've got a lot of errors. I've started a thread on reddit,asking fo=
r
>>> help,here :
>>>
>>>
>>> https://www.reddit.com/r/homeassistant/comments/11wglx7/homeassisant_ca=
nt_be_installed_on_ubuntu_2004_the/
>>>
>>> and he/she told me that ubuntu is not supported. So,which linux
>>> distribution have you used within bhyve ? thanks.
>>>
>>> On Sun, Mar 19, 2023 at 7:12=E2=80=AFPM Miroslav Lachman <000.fbsd@quip=
.cz>
>>> wrote:
>>>
>>>> On 18/03/2023 14:59, Julie Koubov=C3=A1 wrote:
>>>> > Hey everyone,
>>>> >
>>>> > I'm running Linux (Home Assistant OS) in Bhyve on FreeBSD 13.1. I us=
e
>>>> > PCI passthrough to allow the VM to access a USB card with a couple o=
f
>>>> > radio dongles. The host machine is an Intel Core i3 13100 with 64 GB
>>>> of
>>>> > RAM. The CPU has 4 physical cores (8 hyper-threaded). The virtual
>>>> > machine is assigned four cores.
>>>> >
>>>> > The host load averages are 0.39 0.39 0.40 right now, which seems way
>>>> too
>>>> > much. The same workload was previously handled by a Raspberry Pi 4,
>>>> and
>>>> > the CPU usage there was under 10% when not doing anything special.
>>>> > Inside the guest OS, the CPU usage is reported around 5%, which seem=
s
>>>> > reasonable.
>>>> >
>>>> > What's wrong? How can I start debugging this issue? I use ZFS on the
>>>> > host, vm-bhyve to manage the virtual machines, and I don't have a
>>>> swap
>>>> > partition.
>>>>
>>>> I had similar problem few years ago. Never solved. Exhibited on bhyve
>>>> and VirtualBox too. The problem was "the more vCPU for VM, the slower
>>>> VM".
>>>> Can you try to set just 1 vCPU to your VM? In my case, VM with 1 vCPU
>>>> was fast, almost no overhead, 2 v CPUs slightly slower but 4 or more
>>>> was
>>>> slow as hell.
>>>> I would also recommend not to overprovision real CPU core count to vCP=
U
>>>> and not use multi/hyper threading cores as real cores. With your CPU,
>>>> use only 4 cores to assign to all your VMs (4 VMs with 1 vCPU each, or
>>>> 2
>>>> VMs with 2 vCPU each, 1 VM with 4 vCPU)
>>>>
>>>> Miroslav Lachman
>>>>
>>>>
>>>>
>>>
>>> --
>>> Mario.
>>>
>> --
>> Nikita Olenets
>>
>>
>
> --
> Mario.
>
--=20
Nikita Olenets

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<div dir=3D"auto">Hey Mario,</div><div dir=3D"auto"><br></div><div dir=3D"a=
uto">Yeah, sorry. I was thinking that you were the topic starter and you we=
re trying to make things work under bhyve.</div><div dir=3D"auto"><br></div=
><div dir=3D"auto">Have a goo day.</div><div dir=3D"auto"><br></div><div di=
r=3D"auto">=E2=80=94 Nikita</div><div><br><div class=3D"gmail_quote"><div d=
ir=3D"ltr" class=3D"gmail_attr">On Tue, Mar 21, 2023 at 12:54 Mario Mariett=
o &lt;<a href=3D"mailto:marietto2008@gmail.com">marietto2008@gmail.com</a>&=
gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0=
 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr">Are you=
 talking with me ? I can install Home Assistant only on the hardware that I=
 already have. Actually the best piece of hardware that I can use for my pr=
oject (installing the chat gpt module on Home Assistant + a speech recognit=
ion software to give a voice to chat gpt) is the nvidia jetson nano. And If=
 I remember correctly,it supports only Ubuntu. I can do the same on my Work=
station,but I prefer to have the ability to move the smaller nano within a =
plastic container. At the end of the day It will be almost the same as a vo=
cal assistant,but uch more programmable. <br></div><br><div class=3D"gmail_=
quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Mar 21, 2023 at 5:41=
=E2=80=AFPM Nikita Olenets &lt;<a href=3D"mailto:zeon@zeon.kiev.ua" target=
=3D"_blank">zeon@zeon.kiev.ua</a>&gt; wrote:<br></div><blockquote class=3D"=
gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(20=
4,204,204);padding-left:1ex"><div dir=3D"auto">Hi,</div><div dir=3D"auto"><=
br></div><div dir=3D"auto">Is there any specific reason you want it to be i=
nstalled under Ubuntu?</div><div dir=3D"auto">I=E2=80=99m asking this becau=
se I use HasOS(home assistant OS) which is based on Linux (can=E2=80=99t re=
call the distribution) and I=E2=80=99m running this for three=C2=A0years no=
w. No issues at all. I do have even passed through ZigBee usb stick and it =
works just fine.</div><div dir=3D"auto"><br></div><div><div class=3D"gmail_=
quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, Mar 20, 2023 at 11:12 =
Mario Marietto &lt;<a href=3D"mailto:marietto2008@gmail.com" target=3D"_bla=
nk">marietto2008@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,2=
04,204);padding-left:1ex"><div dir=3D"ltr"><div>Hello Julie.</div><div><br>=
</div><div>As I said some days ago,I&#39;m trying to install homeassistant.=
 For the moment I&#39;m using Ubuntu 20.04 that I have installed on the Jet=
son nano,but later I will use Ubuntu within bhyve on FreeBSD. Unfortunately=
,a developer,I suppose,told me that homeassistant is not supported on ubunt=
u. In Fact I tried to do that following this tutorial :</div><div><br></div=
><div><a href=3D"https://vikoky.medium.com/jetson-nano-powered-house-29ce73=
f11de4" target=3D"_blank">https://vikoky.medium.com/jetson-nano-powered-hou=
se-29ce73f11de4</a></div><div><br></div><div>but I&#39;ve got a lot of erro=
rs. I&#39;ve started a thread on reddit,asking for help,here :</div><div><b=
r></div><div><a href=3D"https://www.reddit.com/r/homeassistant/comments/11w=
glx7/homeassisant_cant_be_installed_on_ubuntu_2004_the/" target=3D"_blank">=
https://www.reddit.com/r/homeassistant/comments/11wglx7/homeassisant_cant_b=
e_installed_on_ubuntu_2004_the/</a></div><div><br></div><div>and he/she tol=
d me that ubuntu is not supported. So,which linux distribution have you use=
d within bhyve ? thanks.<br></div></div><br><div class=3D"gmail_quote"><div=
 dir=3D"ltr" class=3D"gmail_attr">On Sun, Mar 19, 2023 at 7:12=E2=80=AFPM M=
iroslav Lachman &lt;<a href=3D"mailto:000.fbsd@quip.cz" target=3D"_blank">0=
00.fbsd@quip.cz</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" s=
tyle=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);pad=
ding-left:1ex">On 18/03/2023 14:59, Julie Koubov=C3=A1 wrote:<br>
&gt; Hey everyone,<br>
&gt; <br>
&gt; I&#39;m running Linux (Home Assistant OS) in Bhyve on FreeBSD 13.1. I =
use <br>
&gt; PCI passthrough to allow the VM to=C2=A0access a USB card with a coupl=
e of <br>
&gt; radio dongles. The host machine is an Intel Core i3 13100 with 64 GB o=
f <br>
&gt; RAM. The CPU has 4 physical cores (8 hyper-threaded). The virtual <br>
&gt; machine is assigned four cores.<br>
&gt; <br>
&gt; The host load averages are 0.39 0.39 0.40 right now, which seems way t=
oo <br>
&gt; much. The same workload was previously handled by a Raspberry Pi 4, an=
d <br>
&gt; the CPU usage there was under 10% when not doing anything special. <br=
>
&gt; Inside the guest OS, the CPU usage is reported around 5%, which seems =
<br>
&gt; reasonable.<br>
&gt; <br>
&gt; What&#39;s wrong? How can I start debugging this issue? I use ZFS on t=
he <br>
&gt; host, vm-bhyve to manage the virtual machines, and I don&#39;t have a =
swap <br>
&gt; partition.<br>
<br>
I had similar problem few years ago. Never solved. Exhibited on bhyve <br>
and VirtualBox too. The problem was &quot;the more vCPU for VM, the slower =
VM&quot;.<br>
Can you try to set just 1 vCPU to your VM? In my case, VM with 1 vCPU <br>
was fast, almost no overhead, 2 v CPUs slightly slower but 4 or more was <b=
r>
slow as hell.<br>
I would also recommend not to overprovision real CPU core count to vCPU <br=
>
and not use multi/hyper threading cores as real cores. With your CPU, <br>
use only 4 cores to assign to all your VMs (4 VMs with 1 vCPU each, or 2 <b=
r>
VMs with 2 vCPU each, 1 VM with 4 vCPU)<br>
<br>
Miroslav Lachman<br>
<br>
<br>
</blockquote></div><br clear=3D"all"><br><span>-- </span><br><div dir=3D"lt=
r">Mario.<br></div>
</blockquote></div></div>-- <br><div dir=3D"ltr"><div dir=3D"ltr"><div>Niki=
ta Olenets<br><br></div></div></div>
</blockquote></div><br clear=3D"all"><br><span>-- </span><br><div dir=3D"lt=
r">Mario.<br></div>
</blockquote></div></div>-- <br><div dir=3D"ltr" class=3D"gmail_signature" =
data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div>Nikita Olenets<br>=
<br></div></div></div>

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