Solved. There's no problem with my laptop or nics. It's a problem of the
web speedof.me. For some reason, this web does not measure in the same
way in linux than in OpenBSD. I reinstall OpenBSD but in i386 flavor.
With i386 I can use gnash in Firefox and try other flash speed test
(speedof.me is for html5).
With flash speed meters, the result are the hopped: about 20Mbps.
So sorry for the noise.
Jes
On 02/22/13 16:58, Jes wrote:
Tested with a 54Mbps wireless connection and pf disabled, the problem
remains. My wifi card is:
iwn0 at pci2 dev 0 function 0 "Intel Centrino Advanced-N 6200" rev 0x35:
msi, MIMO 2T2R, MoW
the problem remains: bandwithd limited to 4Mbps (tested with speedof.me).
So, it's not em0 or iwn0 related. The same laptop with fedora 18 gets
20Mbps.
My kernel es 5.3 Generic amd64, snapshot from february 17.
My laptop is a Thinkpad T410.
No special customizations in /etc/sysctl.conf, only:
machdep.allowaperture=2 # See xf86(4)
#Users can mount
kern.usermount=1
kern.bufcachepercent=50
#Laptop lid suspend (not active)
machdep.lidsuspend=0
#Ip Forwarding
net.inet.ip.forwarding=1
net.inet.ip.ifq.maxlen=512 # Maximum allowed input queue length
(256*number of interfaces)
#Samba
kern.maxfiles=16384
Some clue?
Tha
On 02/21/13 20:51, sven falempin wrote:
On Thu, Feb 21, 2013 at 12:39 PM, Jes <jjje...@gmail.com
<mailto:jjje...@gmail.com>> wrote:
Hi Sven:
My laptop is a Thinkpad T410, with two disks. Fedora 18 installed
in the
first, and OpenBSD in the second. The ethernet card is:
em0 at pci0 dev 25 function 0 "Intel 82577LM" rev 0x06: msi, address
f0:de:f1:11:5e:42
# netstat -i
Name Mtu Network Address Ipkts Ierrs Opkts
Oerrs Colls
lo0 33152 <Link> 12 0 12
0 0
lo0 33152 localhost/1 localhost 12 0 12
0 0
lo0 33152 fe80::%lo0/ fe80::1%lo0 12 0 12
0 0
lo0 33152 localhost localhost 12 0 12
0 0
em0 1500 <Link> f0:de:f1:11:5e:42 47578 0 8230
0 0
em0 1500 fe80::%em0/ fe80::f2de:f1ff:f 47578 0 8230
0 0
em0 1500 185.14.165. 185.14.165.83.dyn 47578 0 8230
0 0
iwn0* 1500 <Link> 00:27:10:81:bf:1c 0 0 0
0 0
enc0* 0 <Link> 0 0 0
0 0
pflog0 33152 <Link> 0 0 0
0 0
# vmstat -i
interrupt total rate
irq0/clock 589062 399
irq0/ipi 1377979 933
irq144/acpi0 295 0
irq100/inteldrm0 8543 5
irq112/em0 50136 33
irq96/ehci0 28840 19
irq176/azalia0 6406 4
irq101/ehci1 26 0
irq102/ahci0 46781 31
irq145/pckbc0 4387 2
irq146/pckbc0 287700 194
Total 2400155 1626
# uname -a
OpenBSD openfourten.my.domain 5.3 GENERIC.MP#36
<http://GENERIC.MP#36> amd64
# ping www.yahoo.com <http://www.yahoo.com>
PING ds-eu-fp3.wa1.b.yahoo.com <http://ds-eu-fp3.wa1.b.yahoo.com>
(87.248.122.122): 56 data bytes
64 bytes from 87.248.122.122 <http://87.248.122.122>: icmp_seq=0
ttl=51 time=102.293 ms
64 bytes from 87.248.122.122 <http://87.248.122.122>: icmp_seq=1
ttl=51 time=103.218 ms
64 bytes from 87.248.122.122 <http://87.248.122.122>: icmp_seq=2
ttl=51 time=108.620 ms
64 bytes from 87.248.122.122 <http://87.248.122.122>: icmp_seq=3
ttl=51 time=100.815 ms
64 bytes from 87.248.122.122 <http://87.248.122.122>: icmp_seq=4
ttl=51 time=109.586 ms
64 bytes from 87.248.122.122 <http://87.248.122.122>: icmp_seq=5
ttl=51 time=107.245 ms
64 bytes from 87.248.122.122 <http://87.248.122.122>: icmp_seq=6
ttl=51 time=108.278 ms
64 bytes from 87.248.122.122 <http://87.248.122.122>: icmp_seq=7
ttl=51 time=103.384 ms
# cat /etc/hostname.em0
dhcp
# ifconfig em0
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr f0:de:f1:11:5e:42
priority: 0
groups: egress
media: Ethernet autoselect (100baseTX
full-duplex,rxpause,txpause)
status: active
inet6 fe80::f2de:f1ff:fe11:5e42%em0 prefixlen 64 scopeid 0x1
inet 83.165.14.185 netmask 0xfffff800 broadcast 83.165.15.255
# netstat -s
ip:
9994 total packets received
0 bad header checksums
0 with size smaller than minimum
0 with data size < data length
0 with header length < data size
0 with data length < header length
0 with bad options
0 with incorrect version number
0 fragments received
0 fragments dropped (duplicates or out of space)
0 malformed fragments dropped
0 fragments dropped after timeout
0 packets reassembled ok
9982 packets for this host
0 packets for unknown/unsupported protocol
0 packets forwarded
0 packets not forwardable
0 redirects sent
8033 packets sent from this host
0 packets sent with fabricated ip header
0 output packets dropped due to no bufs, etc.
0 output packets discarded due to no route
0 output datagrams fragmented
0 fragments created
0 datagrams that can't be fragmented
0 fragment floods
0 packets with ip length > max ip packet size
0 tunneling packets that can't find gif
0 datagrams with bad address in header
9931 input datagrams checksum-processed by hardware
0 output datagrams checksum-processed by hardware
0 multicast packets which we don't join
tcp:
7559 packets sent
2215 data packets (2502569 bytes)
96 data packets (132860 bytes) retransmitted
0 fast retransmitted packets
2933 ack-only packets (4742 delayed)
0 URG only packets
0 window probe packets
1993 window update packets
322 control packets
0 packets hardware-checksummed
9535 packets received
1955 acks (for 2329925 bytes)
345 duplicate acks
0 acks for unsent data
0 acks for old data
7193 packets (9431283 bytes) received in-sequence
10 completely duplicate packets (547 bytes)
0 old duplicate packets
0 packets with some duplicate data (0 bytes
duplicated)
121 out-of-order packets (5879 bytes)
0 packets (0 bytes) of data after window
0 window probes
17 window update packets
4 packets received after close
0 discarded for bad checksums
0 discarded for bad header offset fields
0 discarded because packet too short
0 discarded for missing IPsec protection
0 discarded due to memory shortage
9533 packets hardware-checksummed
0 bad/missing md5 checksums
0 good md5 checksums
166 connection requests
0 connection accepts
165 connections established (including accepts)
160 connections closed (including 1 drop)
0 connections drained
1 embryonic connection dropped
864 segments updated rtt (of 860 attempts)
1 retransmit timeout
0 connections dropped by rexmit timeout
0 persist timeouts
0 keepalive timeouts
0 keepalive probes sent
0 connections dropped by keepalive
525 correct ACK header predictions
6988 correct data packet header predictions
29 PCB cache misses
1 ECN connection accepted
0 ECE packets received
0 CWR packets received
0 CE packets received
6 ECT packets sent
0 ECE packets sent
0 CWR packets sent
cwr by fastrecovery: 2
cwr by timeout: 1
cwr by ecn: 0
0 bad connection attempts
0 SYN cache entries added
0 hash collisions
0 completed
0 aborted (no space to build PCB)
0 timed out
0 dropped due to overflow
0 dropped due to bucket overflow
0 dropped due to RST
0 dropped due to ICMP unreachable
0 SYN,ACKs retransmitted
0 duplicate SYNs received for entries already in the cache
0 SYNs dropped (no route or no space)
2 SACK recovery episodes
133 segment rexmits in SACK recovery episodes
171608 byte rexmits in SACK recovery episodes
365 SACK options received
6 SACK options sent
Thanks
Jes
On 02/21/13 18:32, sven falempin wrote:
> give more information, like how you connect the card to the modem,
> provide vmstat -i , the uname result
> show some ping , and More important give your network
configuration :
> for v in /etc/hostname.* do print "$v :"; cat $v done etc ....
>
> or you will just look like a linux troll :-)
>
> On Thu, Feb 21, 2013 at 12:25 PM, Jes <jjje...@gmail.com
<mailto:jjje...@gmail.com>
> <mailto:jjje...@gmail.com <mailto:jjje...@gmail.com>>> wrote:
>
> Hi all:
>
> I'm running current amd64. I've detected a problem with the
> network speed. My internet connection is cable, with 20Mbps. In
> Linux, with several speed meters (my provider's and, for
example,
> speedof.me <http://speedof.me> <http://speedof.me>) I always get
around 20Mpbs in
> donwlink, and about 2-2.5 Mbps in uplink. But with OpenBSD
current
> there is a limit around 4Mbps in downlink (uplink is ok).
>
> It doesn't matter if the PF is enabled or disable, the speed is
> always ~4Mbps.
>
> Ethernet card is in 100Mbps full-duplex.
>
> I've google a lot and tried several sysctl tweaks but without
> success. Right now I've finished to upgrade to the last snapshot
> and the problem remains.
>
> Any idea?
>
> Thanks in advance,
>
> Jes
>
>
>
>
> --
>
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> () ascii ribbon campaign - against html e-mail
> /\
I hope others will give you more info, they are people with much more
knowledge than me , two things are catching my intention:
- first your card is gibagit and apparently not FULLY supported by em
( 2 cents ) :
you shoud see
1000baseLX Sets 1000Mbps operation. Only full-duplex mode is
supported at this speed.
1000baseSX Sets 1000Mbps operation. Only full-duplex mode is
supported at this speed.
1000baseT Sets 1000Mbps operation. Only full-duplex mode is
supported at this speed.
what does hardware spec say ? maybe you just have a compatible chip ?
linux dmesg ?
- the irq0/ipi interupt rate is very high while the em0 is relatively
low .
You didn't give any information about the modem (i know it does not
change but ...)
There 's some history around performance of em on 1GB :-) and i
remember thats it works with good hardware.
--
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