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Date:      Mon, 14 Aug 2023 11:41:56 +0200
From:      Mario Marietto <marietto2008@gmail.com>
To:        Odhiambo Washington <odhiambo@gmail.com>
Cc:        Miroslav Lachman <000.fbsd@quip.cz>, freebsd-virtualization@freebsd.org
Subject:   Re: bhyve VM not getting as much upload bandwidth as the host
Message-ID:  <CA%2B1FSijj7Thfj1Wxf1bQq4AQzUCvzfZ93rwbPtsRwOQRb0=0=Q@mail.gmail.com>
In-Reply-To: <CAAdA2WMTqRNRgviymPw1jA45Q8oA-Ygx0hn=5=7aQdHWmfFusg@mail.gmail.com>
References:  <CAAdA2WN6FTT=Bn-p3EEGDk_-8=g_PoFicUb%2Be-ybcpKxjY5bwQ@mail.gmail.com> <096b2d73-b28c-bd6b-a6d3-2a3c3dbaea7e@h4ck.io> <CAAdA2WM8Qrro-md-Rg%2BXfj5BxNrP_A8chD6TGrxQD2G14oC86g@mail.gmail.com> <38587cf9-29a7-1246-3b64-a3cf35933717@quip.cz> <CAAdA2WMTqRNRgviymPw1jA45Q8oA-Ygx0hn=5=7aQdHWmfFusg@mail.gmail.com>

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You should isolate the problem. You could make some tests to understand
where the problem is. So you could create a matrix that can help you to
create all the possible cases to analyze if the problem is :

1) within your specific vm only
2) in any vm you create with virtualbox and linux (which distro ? changing
distro may solve the problem)
3) on the network config of the host os (freebsd) (what version ? changing
version may solve the problem)
4) any other combination that can exclude variables

On Mon, Aug 14, 2023 at 11:35=E2=80=AFAM Odhiambo Washington <odhiambo@gmai=
l.com>
wrote:

>
>
> On Mon, Aug 14, 2023 at 12:30=E2=80=AFPM Miroslav Lachman <000.fbsd@quip.=
cz>
> wrote:
>
>> On 14/08/2023 10:49, Odhiambo Washington wrote:
>> > I had the following in sysctl.conf:
>> > net.link.tap.up_on_open=3D1
>> > net.link.bridge.pfil_member=3D0
>> > net.link.bridge.pfil_bridge=3D0
>> > net.link.bridge.pfil_local_phys=3D1
>> >
>> > So I only did:
>> > sysctl -w net.link.bridge.pfil_onlyip=3D0
>> > sysctl -w net.link.bridge.pfil_local_phys=3D0
>> >
>> > Nothing has changed for the linux VM.
>> >
>> > Windows11 VM is getting download/upload speed of 40Mbps/37Mbps while a
>> > Debian12 VM is getting download/upload of 37Mbps/45Kbps.
>> > Maybe there is an issue with the Linux itself?
>>
>> I never had this solved. Even my FreeBSD guest on FreeBSD host with
>> VirtualBox is slow as few hunderds kB/s
>> It was like 10Mbps with Bhyve. I only use VMs for testing but installing
>> packages is always so slow. So you are not alone. I would really like to
>> know how to improve the network speed with virtualized environment.
>>
>> Kind regards
>> Miroslav Lachman
>>
>
> I had a FreeBSD VM for testing under bhyve and it did not suffer from thi=
s
> upload speed hiccup.
>
>
>
> --
> Best regards,
> Odhiambo WASHINGTON,
> Nairobi,KE
> +254 7 3200 0004/+254 7 2274 3223
> "Oh, the cruft.", egrep -v '^$|^.*#' =C2=AF\_(=E3=83=84)_/=C2=AF :-)
> [How to ask smart questions:
> http://www.catb.org/~esr/faqs/smart-questions.html]
>


--=20
Mario.

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<div dir=3D"ltr"><div>You should isolate the problem. You could make some t=
ests to understand where the problem is. So you could create a matrix that =
can help you to create all the possible cases to analyze if the problem is =
:<br></div><div>=C2=A0<br></div><div>1) within your specific vm only<br></d=
iv><div>2) in any vm you create with virtualbox and linux (which distro ? c=
hanging distro may solve the problem)<br></div><div>3) on the network confi=
g of the host os (freebsd) (what version ? changing version may solve the p=
roblem)</div><div>4) any other combination that can exclude variables<br></=
div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_at=
tr">On Mon, Aug 14, 2023 at 11:35=E2=80=AFAM Odhiambo Washington &lt;<a hre=
f=3D"mailto:odhiambo@gmail.com">odhiambo@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(204,204,204);padding-left:1ex"><div dir=3D"ltr"><div dir=
=3D"ltr"><br></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D=
"gmail_attr">On Mon, Aug 14, 2023 at 12:30=E2=80=AFPM Miroslav Lachman &lt;=
<a href=3D"mailto:000.fbsd@quip.cz" target=3D"_blank">000.fbsd@quip.cz</a>&=
gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0=
px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On 14=
/08/2023 10:49, Odhiambo Washington wrote:<br>
&gt; I had the following in sysctl.conf:<br>
&gt; net.link.tap.up_on_open=3D1<br>
&gt; net.link.bridge.pfil_member=3D0<br>
&gt; net.link.bridge.pfil_bridge=3D0<br>
&gt; net.link.bridge.pfil_local_phys=3D1<br>
&gt; <br>
&gt; So I only did:<br>
&gt; sysctl -w net.link.bridge.pfil_onlyip=3D0<br>
&gt; sysctl -w net.link.bridge.pfil_local_phys=3D0<br>
&gt; <br>
&gt; Nothing has changed for the linux VM.<br>
&gt; <br>
&gt; Windows11 VM is getting download/upload speed of 40Mbps/37Mbps while a=
 <br>
&gt; Debian12 VM is getting download/upload of 37Mbps/45Kbps.<br>
&gt; Maybe there is an issue with the Linux itself?<br>
<br>
I never had this solved. Even my FreeBSD guest on FreeBSD host with <br>
VirtualBox is slow as few hunderds kB/s<br>
It was like 10Mbps with Bhyve. I only use VMs for testing but installing <b=
r>
packages is always so slow. So you are not alone. I would really like to <b=
r>
know how to improve the network speed with virtualized environment.<br>
<br>
Kind regards<br>
Miroslav Lachman<br></blockquote><div><br></div><div>I had a FreeBSD VM for=
 testing under bhyve and it did not suffer from this upload speed hiccup.=
=C2=A0</div><div>=C2=A0</div></div><br clear=3D"all"><div><br></div><span c=
lass=3D"gmail_signature_prefix">-- </span><br><div dir=3D"ltr" class=3D"gma=
il_signature"><div dir=3D"ltr"><div dir=3D"ltr"><div>Best regards,<br>Odhia=
mbo WASHINGTON,<br>Nairobi,KE<br>+254 7 3200 0004/+254 7 2274 3223<br>&quot=
;<span style=3D"font-size:12.8px">Oh, the cruft.</span><span style=3D"font-=
size:12.8px">&quot;,=C2=A0</span><span style=3D"font-size:12.8px">egrep -v =
&#39;^$|^.*#&#39;=C2=A0</span><span style=3D"background-color:rgb(34,34,34)=
;color:rgb(238,238,238);font-family:&quot;Lucida Console&quot;,Consolas,&qu=
ot;Courier New&quot;,monospace;font-size:13.6px">=C2=AF\_(=E3=83=84)_/=C2=
=AF</span><span style=3D"font-size:12.8px">=C2=A0:-)</span></div><div><span=
 style=3D"font-size:12.8px">[How to ask smart questions:=C2=A0</span><span =
style=3D"font-size:12.8px"><a href=3D"http://www.catb.org/~esr/faqs/smart-q=
uestions.html" target=3D"_blank">http://www.catb.org/~esr/faqs/smart-questi=
ons.html</a>]</span></div></div></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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