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Re: merge bouyer-xenpvh to HEAD
Here is the justification of my interest in this topic:
...
# iperf3 -c f12x # FreeBSD12 guest, xn0 adapter
Connecting to host f12x, port 5201
[ 7] local 192.168.0.29 port 65296 connected to 192.168.0.203 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 7] 0.00-1.00 sec 107 MBytes 901 Mbits/sec 0 4.00 MBytes
[ 7] 1.00-2.00 sec 110 MBytes 923 Mbits/sec 0 4.00 MBytes
[ 7] 2.00-3.00 sec 111 MBytes 930 Mbits/sec 0 4.00 MBytes
[ 7] 3.00-4.00 sec 111 MBytes 932 Mbits/sec 0 4.00 MBytes
[ 7] 4.00-5.00 sec 111 MBytes 933 Mbits/sec 0 4.00 MBytes
[ 7] 5.00-6.00 sec 111 MBytes 929 Mbits/sec 0 4.00 MBytes
[ 7] 6.00-7.00 sec 110 MBytes 926 Mbits/sec 0 4.00 MBytes
[ 7] 7.00-8.00 sec 111 MBytes 932 Mbits/sec 0 4.00 MBytes
[ 7] 8.00-9.00 sec 111 MBytes 932 Mbits/sec 0 4.00 MBytes
[ 7] 9.00-10.00 sec 111 MBytes 931 Mbits/sec 0 4.00 MBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 7] 0.00-10.00 sec 1.08 GBytes 927 Mbits/sec 0 sender
[ 7] 0.00-10.49 sec 1.08 GBytes 883 Mbits/sec receiver
iperf Done.
# iperf3 -c nbuild # NetBSD-current guest, re0 adapter - 100mb/s
Connecting to host nbuild, port 5201
[ 7] local 192.168.0.29 port 65294 connected to 192.168.0.213 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 7] 0.00-1.00 sec 10.5 MBytes 88.1 Mbits/sec 0 512 KBytes
[ 7] 1.00-2.00 sec 12.8 MBytes 107 Mbits/sec 0 512 KBytes
[ 7] 2.00-3.00 sec 12.8 MBytes 107 Mbits/sec 0 512 KBytes
[ 7] 3.00-4.00 sec 12.7 MBytes 107 Mbits/sec 0 512 KBytes
[ 7] 4.00-5.00 sec 12.9 MBytes 108 Mbits/sec 0 512 KBytes
[ 7] 5.00-6.00 sec 13.0 MBytes 109 Mbits/sec 0 512 KBytes
[ 7] 6.00-7.00 sec 12.6 MBytes 106 Mbits/sec 0 512 KBytes
[ 7] 7.00-8.00 sec 12.8 MBytes 107 Mbits/sec 0 512 KBytes
[ 7] 8.00-9.00 sec 12.8 MBytes 108 Mbits/sec 0 512 KBytes
[ 7] 9.00-10.00 sec 12.8 MBytes 107 Mbits/sec 0 512 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 7] 0.00-10.00 sec 126 MBytes 105 Mbits/sec 0 sender
[ 7] 0.00-10.00 sec 125 MBytes 105 Mbits/sec receiver
iperf Done.
# iperf3 -c nbuild # Same NetBSD guest, adapter changed
to Intel wm0, 1000mb/s !!!
Connecting to host nbuild, port 5201
[ 7] local 192.168.0.29 port 65286 connected to 192.168.0.213 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 7] 0.00-1.00 sec 5.91 MBytes 49.5 Mbits/sec 0 512 KBytes
[ 7] 1.00-2.00 sec 7.36 MBytes 61.8 Mbits/sec 0 512 KBytes
[ 7] 2.00-3.00 sec 7.57 MBytes 63.5 Mbits/sec 0 512 KBytes
[ 7] 3.00-4.00 sec 7.87 MBytes 66.2 Mbits/sec 0 512 KBytes
[ 7] 4.00-5.00 sec 7.30 MBytes 61.2 Mbits/sec 0 512 KBytes
[ 7] 5.00-6.00 sec 7.42 MBytes 62.3 Mbits/sec 0 512 KBytes
[ 7] 6.00-7.00 sec 7.11 MBytes 59.6 Mbits/sec 0 512 KBytes
[ 7] 7.00-8.00 sec 7.35 MBytes 61.7 Mbits/sec 0 512 KBytes
[ 7] 8.00-9.00 sec 7.35 MBytes 61.7 Mbits/sec 0 512 KBytes
[ 7] 9.00-10.00 sec 7.61 MBytes 63.9 Mbits/sec 0 512 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 7] 0.00-10.00 sec 72.9 MBytes 61.1 Mbits/sec 0 sender
[ 7] 0.00-10.01 sec 72.7 MBytes 61.0 Mbits/sec receiver
iperf Done.
The iperf3 client in all cases is the same NetBSD-current laptop with
wm0 1000mb/s adapter.
On Sat, 25 Apr 2020 at 14:08, Chavdar Ivanov <ci4ic4%gmail.com@localhost> wrote:
>
> On Fri, 24 Apr 2020 at 20:58, Manuel Bouyer <bouyer%antioche.eu.org@localhost> wrote:
> >
> > On Fri, Apr 24, 2020 at 08:53:07PM +0100, Chavdar Ivanov wrote:
> > > Out of interest, I tried today to build XEN3_PVHVM kernel and got:
> > > ...
> > > # link XEN3_PVHVM/netbsd
> > > ld -Map netbsd.map --cref -T netbsd.ldscript -Ttext 0xffffffff80200000
> > > -e start -X -o netbsd ${SYSTEM_OBJ:[@]:Nswapnetbsd.o} ${EXTRA_OBJ}
> > > vers.o swapnetbsd.o
> > > ld: hypervisor.o: in function `hypervisor_attach':
> > > hypervisor.c:(.text+0x7be): undefined reference to `xenbus_bus_dma_tag'
> > > *** Error code 1
> > > ....
> > >
> > >
> > > Should I presume I've updated in the wrong moment?
> >
> > Ha yes, I fixed it in the branch but not in HEAD.
> > If you want to try it, it's better to build from the branch :)
>
> And so I did.
>
> Any pointers as to how to test it? My personal interest is in running
> NetBSD guests under XCP-NG, at present they can run only in HVM mode.
> One ofthe problems I have with this is that while the Realtek driver
> performs as expected - it is 100mb/s one - the Intel driver is
> actually almost slower, even if it is supposed to be 1000mb/s. I was
> hoping I'd get decent enough network performance her with xennet - as
> I am getting under FreeBSD GENERIC and the xn driver.
>
> (I have ran previously Xen with a NetBSD DOM0, but since qemu-nvmm
> became available I switched to using it instead).
>
> Anyway, under FreeBSD 12 I get:
>
> Hyper-V Version: 0.0.0 [SP0]
> Features=0x870<APIC,HYPERCALL,VPINDEX,TMFREQ>
> PM Features=0x0 [C0]
> Features3=0x0
> XEN: Hypervisor version 4.13 detected.
> CPU: Intel(R) Xeon(R) CPU E31245 @ 3.30GHz (3292.62-MHz K8-class CPU)
> Origin="GenuineIntel" Id=0x206a7 Family=0x6 Model=0x2a Stepping=7
> ...
> Hypervisor: Origin = "Microsoft Hv"
>
> and all the Xen devices get recognised; the machine is reported to be
> running in PVHVM mode.
>
> Trying GENERIC_XENHVM, I get:
>
> Hyper-V Version: 0.0.0 [SP0]
> Features=0x870<APIC,HYPERCALL,VPINDEX,TMFREQ>
> PM Features=0 [C0]
> Features3=0
> Recommends: 00000000 00000000
> Limits: Vcpu:0 Lcpu:0 Int:0
> HW Features: 0000000b, AMD: 00000000
> ...
> Xen HVM domU (4.13)
>
> and none of the Xen devices get detected.
>
> $ sysctl -a | grep hyper
> machdep.hypervisor = Hyper-V
> machdep.hyperv.version = 0.0.0 [SP0]
> machdep.hyperv.features = 0x870<APIC,HYPERCALL,VPINDEX,TMFREQ>
> machdep.hyperv.pm_features = 0 [C0]
> machdep.hyperv.features3 = 0
>
> and it basically works as usual GENERIC kernel.
>
> I also built XEN3_PVHVM; if I select it from the menu, the output from
> the console disappears (even it I add 'consdev xencons'), the machine
> also does not appear oin the network (even if I have setup
> /etc/ifconfig.xennet0 just in case it happens to work).
>
> So basically I am out of my depth; my understanding of the above
> thread is that the aim is to get NetBSD to the same or similar
> functionality as FreeBSD - just install it, GENERIC has all the PVHVM
> bits configured. Am I doing something wrong or I am too early to do
> such tests?
>
>
>
> >
> >
> > --
> > Manuel Bouyer <bouyer%antioche.eu.org@localhost>
> > NetBSD: 26 ans d'experience feront toujours la difference
> > --
>
> Chavdar
>
>
> --
> ----
--
----
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