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Date:      Tue, 21 Mar 2023 17:53:35 +0100
From:      Mario Marietto <marietto2008@gmail.com>
To:        Nikita Olenets <zeon@zeon.kiev.ua>
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:  <CA%2B1FSij5XiJ9o1Sgh8S2-y31XtUJ=GLMo6q6p-w49peApcDM5w@mail.gmail.com>
In-Reply-To: <CAJ5wse2Oyz%2B=P3ojNz8YqH79fKxJs7uOBzvMu7crkbxg_EykGQ@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>

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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 do 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 b=
ased on
> Linux (can=E2=80=99t recall the distribution) and I=E2=80=99m running thi=
s for three years
> now. No issues at all. I do have even passed through ZigBee usb stick and
> 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,b=
ut
>> 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 :
>>
>> 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 for
>> help,here :
>>
>>
>> https://www.reddit.com/r/homeassistant/comments/11wglx7/homeassisant_can=
t_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 use
>>> > PCI passthrough to allow the VM to access a USB card with a couple of
>>> > 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 seems
>>> > 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 swa=
p
>>> > 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 wa=
s
>>> slow as hell.
>>> I would also recommend not to overprovision real CPU core count to vCPU
>>> 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
>
>

--=20
Mario.

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<div dir=3D"ltr">Are you talking with me ? I can install Home Assistant onl=
y 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 Assis=
tant + a speech recognition software to give a voice to chat gpt) is the nv=
idia jetson nano. And If I remember correctly,it supports only Ubuntu. I ca=
n do the same on my Workstation,but I prefer to have the ability to move th=
e 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. <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">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 rg=
b(204,204,204);padding-left:1ex"><div dir=3D"auto">Hi,</div><div dir=3D"aut=
o"><br></div><div dir=3D"auto">Is there any specific reason you want it to =
be installed under Ubuntu?</div><div dir=3D"auto">I=E2=80=99m asking this b=
ecause I use HasOS(home assistant OS) which is based on Linux (can=E2=80=99=
t recall the distribution) and I=E2=80=99m running this for three=C2=A0year=
s now. 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"gm=
ail_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"=
_blank">marietto2008@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D=
"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(2=
04,204,204);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 homeassist=
ant. For the moment I&#39;m using Ubuntu 20.04 that I have installed on the=
 Jetson nano,but later I will use Ubuntu within bhyve on FreeBSD. Unfortuna=
tely,a developer,I suppose,told me that homeassistant is not supported on u=
buntu. 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-29=
ce73f11de4" target=3D"_blank">https://vikoky.medium.com/jetson-nano-powered=
-house-29ce73f11de4</a></div><div><br></div><div>but I&#39;ve got a lot of =
errors. I&#39;ve started a thread on reddit,asking for help,here :</div><di=
v><br></div><div><a href=3D"https://www.reddit.com/r/homeassistant/comments=
/11wglx7/homeassisant_cant_be_installed_on_ubuntu_2004_the/" target=3D"_bla=
nk">https://www.reddit.com/r/homeassistant/comments/11wglx7/homeassisant_ca=
nt_be_installed_on_ubuntu_2004_the/</a></div><div><br></div><div>and he/she=
 told me that ubuntu is not supported. So,which linux distribution have you=
 used 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=AF=
PM Miroslav Lachman &lt;<a href=3D"mailto:000.fbsd@quip.cz" target=3D"_blan=
k">000.fbsd@quip.cz</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quot=
e" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204)=
;padding-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 class=3D"gmail_signature_pre=
fix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature">Mario.<br></d=
iv>

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