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Re: Low network throughput using DHCP
>
> Does the board under test end up with the same IP address when
> configured statically vs. DHCP? If not, can you try and make it so?
>
> If they have different addresses, there may be some difference in how
> packets are being passed around the network. For example, with the DHCP
> setup, the eCos system might think that everything needs to go through
> some gateway whereas with the directly set IP address, it does not.
>
> Perhaps you could send the initial IP address setup for each
> configuration. By this I mean the handful of lines that eCos prints
> while it is configuring the interface.
>
The IP addresses of the board are the same in the two configurations. The board
and the host are in the same subnet, so it is perhaps not the gateway issue.
Anyway, the followings are the messages running tcp_echo for the two
different configurations. Is something abnormal?
Thanks.
Xavier
===================================================
DHCP
--------
Network stack using 65536 bytes for misc space
65536 bytes for mbufs
131072 bytes for mbuf clusters
Start TCP test - ECHO mode
BOOTP[eth0] op: REPLY
htype: Ethernet
hlen: 6
hops: 0
xid: 0x80168B82
secs: 0
flags: 0x0
hw_addr: 00:E0:4C:39:0C:44
client IP: 0.0.0.0
my IP: 172.20.15.6
server IP: 172.20.1.11
gateway IP: 0.0.0.0
options:
DHCP message: 5 ACK
DHCP time 58: 432000
DHCP time 59: 756000
DHCP time 51: 864000
DHCP server id: 172.20.1.11
subnet mask: 255.255.0.0
gateway: 172.20.1.254
domain server: 172.20.1.11, 172.20.1.10
domain name: realtek.com.tw
Route - dst: 127.0.0.0, mask: 255.0.0.0, gateway: 127.0.0.1
No load = 44443
Set background load = 50% starting 10 threads
Set no background load
High Load[100] = 25115 => 44%
Set background load = 50% starting 10 threads
Set no background load
High Load[200] = 16700 => 63%
Set background load = 50% starting 10 threads
Set no background load
Load[150] = 20756 => 54%
Set background load = 50% starting 10 threads
Set no background load
Load[125] = 22891 => 49%
Set background load = 50% starting 10 threads
Set no background load
Final load[127] = 24190 => 46%
SOURCE connection from 172.20.14.30:1052
SINK connection from 172.20.14.30:1051
Using 1024 buffers of 8192 bytes each, 0% background load
Set no background load
Set no background load
13669 ticks elapsed, 6074 kloops predicted for an idle system
actual kloops 4154, CPU was 68% idle during transfer
Set no background load
Set no background load
Final load[127] = 43548 => 3%
Net malloc:
count: 1315, min: 25.76 , max: 660.96 , total: 74680.88 , ave: 56.76
Net free:
count: 1264, min: 28.72 , max: 283.64 , total: 65977.08 , ave: 52.16
Mbuf alloc:
count: 36454, min: 42.28 , max: 671.68 , total: 2092031.36 , ave: 57.36
Mbuf free:
count: 36449, min: 23.96 , max: 739.28 , total: 1490720.68 , ave: 40.88
Cluster alloc:
count: 35, min: 37.36 , max: 47.60 , total: 1412.48 , ave: 40.32
Checksum:
count: 0, min: 0.00 , max: 0.00 , total: 0.00 , ave: 0.00
Net memcpy:
count: 75349, min: 2.16 , max: 1539.36 , total: 2132507.24 , ave: 28.28
Net memset:
count: 10917, min: 3.60 , max: 732.60 , total: 204379.88 , ave: 18.72
[New thread 5]
Program received signal SIGINT, Interrupt.
[Switching to thread 5]
cyg_test_exit () at /ecos-d/src/packages/infra/current/src/tcdiag.cxx:130
===================================================
Static IP
----------
Network stack using 65536 bytes for misc space
65536 bytes for mbufs
131072 bytes for mbuf clusters
Start TCP test - ECHO mode
BOOTP[eth0] op: REPLY
htype: Ethernet
hlen: 6
hops: 0
xid: 0x0
secs: 0
flags: 0x0
hw_addr: 00:E0:4C:39:0C:44
client IP: 172.20.15.6
my IP: 172.20.15.6
server IP: 172.20.1.11
gateway IP: 172.20.1.254
options:
subnet mask: 255.255.0.0
IP broadcast: 172.20.255.255
gateway: 172.20.1.254
Route - dst: 127.0.0.0, mask: 255.0.0.0, gateway: 127.0.0.1
No load = 118022
Set background load = 50% starting 10 threads
Set no background load
High Load[100] = 93261 => 21%
Set background load = 50% starting 10 threads
Set no background load
High Load[200] = 78041 => 34%
Set background load = 50% starting 10 threads
Set no background load
High Load[400] = 56301 => 53%
Set background load = 50% starting 10 threads
Set no background load
Load[300] = 65669 => 45%
Set background load = 50% starting 10 threads
Set no background load
Load[350] = 61306 => 49%
Set background load = 50% starting 10 threads
Set no background load
Final load[357] = 59872 => 50%
SINK connection from 172.20.14.30:1067
SOURCE connection from 172.20.14.30:1068
Using 1024 buffers of 8192 bytes each, 0% background load
Set no background load
Set no background load
1771 ticks elapsed, 2090 kloops predicted for an idle system
actual kloops 65, CPU was 3% idle during transfer
Set no background load
Set no background load
Final load[357] = 117810 => 1%
Net malloc:
count: 76, min: 3.84 , max: 210.40 , total: 1530.84 , ave: 20.12
Net free:
count: 36, min: 18.08 , max: 34.36 , total: 811.36 , ave: 22.52
Mbuf alloc:
count: 34022, min: 14.84 , max: 190.44 , total: 816985.88 , ave: 24.00
Mbuf free:
count: 34018, min: 13.32 , max: 289.40 , total: 699828.56 , ave: 20.56
Cluster alloc:
count: 30, min: 19.92 , max: 24.92 , total: 681.48 , ave: 22.68
Checksum:
count: 0, min: 0.00 , max: 0.00 , total: 0.00 , ave: 0.00
Net memcpy:
count: 59016, min: 0.80 , max: 308.92 , total: 737589.92 , ave: 12.48
Net memset:
count: 8954, min: 1.16 , max: 200.24 , total: 53542.28 , ave: 5.96
[New thread 5]
Program received signal SIGINT, Interrupt.
[Switching to thread 5]
cyg_test_exit () at /ecos-d/src/packages/infra/current/src/tcdiag.cxx:130
--
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