Date: Wed, 07 Oct 2015 18:39:06 +0200 From: "C.Dornig" <c_dornig@gmx.de> To: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: dwc on banana pi pro and poor network performance Message-ID: <56154AAA.1080205@gmx.de> In-Reply-To: <CAB=2f8yEd58Gv-UXrJL=B7D1vVNhTEewSNoY4eDrVXZCs0Xpag@mail.gmail.com> References: <560ED8DF.4080709@gmx.de> <CAB=2f8yEd58Gv-UXrJL=B7D1vVNhTEewSNoY4eDrVXZCs0Xpag@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Hi,
I tested it again without witness and debug enabled Kernel (r288916)
The results are a bit better now:
iperf
#####
- ------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 64.0 KByte (default)
- ------------------------------------------------------------
[ 4] local 10.0.0.100 port 5001 connected with 10.0.1.100 port 55959
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 389 MBytes 325 Mbits/sec
Top:
####
last pid: 848; load averages: 0.37, 0.29, 0.15
up 0+00:07:04
10:15:10
14 processes: 1 running, 13 sleeping
CPU 0: 0.0% user, 0.0% nice, 0.0% system, 100% interrupt, 0.0% idle
CPU 1: 0.0% user, 0.0% nice, 1.5% system, 0.0% interrupt, 98.5% idle
Mem: 17M Active, 11M Inact, 44M Wired, 4332K Buf, 923M Free
Swap:
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU
COMMAND
846 root 1 20 0 7540K 3052K CPU1 1 0:00 0.39% top
840 admin 1 20 0 15040K 6828K select 1 0:00 0.20% sshd
651 root 1 20 0 7200K 4620K ttyin 1 0:00 0.00% csh
837 root 1 28 0 15040K 6820K select 0 0:00 0.00% sshd
844 root 1 32 0 7200K 3812K pause 0 0:00 0.00% csh
netstat -i -w 1 -n -bd
#######################
input (Total) output
packets errs idrops bytes packets errs bytes colls drops
10 0 0 864 6 0 880 0 0
2 0 0 144 2 0 368 0 0
59k 0 0 58M 58k 0 58M 0 0
76k 0 0 75M 76k 0 75M 0 0
79k 0 0 78M 80k 0 78M 0 0
80k 0 0 79M 79k 0 79M 0 0
80k 0 0 79M 80k 0 79M 0 0
81k 0 0 80M 81k 0 80M 0 0
81k 0 0 80M 82k 0 80M 0 0
82k 0 0 81M 81k 0 80M 0 0
I am a bit confused why the network interrupts are block 100% only one
CPU instead both.
It would be nice to get the same network performance as with Linux.
Regards,
C.
On 02.10.2015 23:49, Luiz Otavio O Souza wrote:
> On 2 October 2015 at 16:19, C.Dornig wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA256
>>
>> Hi,
>>
>>
>> I have a Lemaker Banana Pi Pro and want to use it as router (regarding
>> the GBit interface).
>>
>> For testing i used iperf with two test hosts. The Pi have two vlans
>> configured and each test node use the pi as router to reach the other node.
>>
>> I created a FreeBSD 11 image with crochet (FreeBSD r288430,
>> +u-boot-bananapi version 2015-04).
>>
>> Test scenario:
>>
>> # On Banana:
>> sysctl net.inet.ip.forwarding=1
>> sysctl net.inet.ip.fastforwarding=1
>> ifconfig vlan10 create
>> ifconfig vlan10 vlan 10 vlandev dwc0
>> ifconfig vlan10 10.0.0.1/24 up
>> ifconfig vlan11 create
>> ifconfig vlan11 vlan 11 vlandev dwc0
>> ifconfig vlan11 10.0.1.1/24 up
>>
>> # Host 1:
>> ifconfig vlan10 create
>> ifconfig vlan10 vlan 10 vlandev em0
>> ifconfig vlan10 10.0.0.100/24 up
>> route add -net 10.0.1.0/24 10.0.0.1
>> iperf -c 10.0.1.100
>>
>> # Host 2:
>> ifconfig vlan11 create
>> ifconfig vlan11 vlan 11 vlandev em0
>> ifconfig vlan11 10.0.1.100/24 up
>> route add -net 10.0.0.0/24 10.0.1.1
>> iperf -s
>>
>> The hosts can reach each others.
>>
>> Iperf reports me ~130 Mbit.
>>
>> During the test, netstat reports ~37k pps and the interrupt rate are
>> also not very high (~300).
>>
>> The same test with Linux on the PI results ~550 Mbit.
>>
>> Iperf from host 1 to host 2 without PI in between reports ~990 Mbit.
>>
>>
>> What's wrong here ?
>>
>> Regards,
>> C.
>
>
> This is expected, if_dwc needs some work to perform better.
>
> I just did enough to make it work on A20.
>
> If someone is willing to work with this, I can help with some of
> details (yongari@ was kind enough to educate me about what could be
> done there), otherwise I'll fix this on my free time (i.e. it will
> take some time).
>
> Luiz
>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=WiaO
-----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?56154AAA.1080205>