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 amd64
# ping www.yahoo.com
PING ds-eu-fp3.wa1.b.yahoo.com (87.248.122.122): 56 data bytes
64 bytes from 87.248.122.122: icmp_seq=0 ttl=51 time=102.293 ms
64 bytes from 87.248.122.122: icmp_seq=1 ttl=51 time=103.218 ms
64 bytes from 87.248.122.122: icmp_seq=2 ttl=51 time=108.620 ms
64 bytes from 87.248.122.122: icmp_seq=3 ttl=51 time=100.815 ms
64 bytes from 87.248.122.122: icmp_seq=4 ttl=51 time=109.586 ms
64 bytes from 87.248.122.122: icmp_seq=5 ttl=51 time=107.245 ms
64 bytes from 87.248.122.122: icmp_seq=6 ttl=51 time=108.278 ms
64 bytes from 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 <[email protected]
> <mailto:[email protected]>> 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>) 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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