Opteron bandwidth report failure
Hello All,
At Iperf 2.0 bandwidth reports seem to fail at AMD Opteron, ruunning
Debian Linux.
Output server:
% ./iperf -s -i 4
[ 4] -1098923430.7--1098923426.7 sec 0.00 Bytes 0.00 bits/sec
[ 4] -1098923426.7--1098923422.7 sec 0.00 Bytes 0.00 bits/sec
[ 4] -1098923422.7--1098923418.7 sec 0.00 Bytes 0.00 bits/sec
[ 4] -1098923418.7--1098923414.7 sec 0.00 Bytes 0.00 bits/sec
[ 4] -1098923414.7--1098923410.7 sec 0.00 Bytes 0.00 bits/sec
[ 4] -1098923410.7--1098923406.7 sec 0.00 Bytes 0.00 bits/sec
[ 4] -1098923406.7--1098923402.7 sec 0.00 Bytes 0.00 bits/sec
[ 4] -1098923402.7--1098923398.7 sec 0.00 Bytes 0.00 bits/sec
[ 4] -1098923398.7--1098923394.7 sec 0.00 Bytes 0.00 bits/sec
....
Output client:
% ./iperf -c localhost -t 10 -i 4
[ 3] -1098637438.7--1098637434.7 sec 0.00 Bytes 0.00 bits/sec
[ 3] -1098637434.7--1098637430.7 sec 0.00 Bytes 0.00 bits/sec
[ 3] -1098637430.7--1098637426.7 sec 0.00 Bytes 0.00 bits/sec
[ 3] -1098637426.7--1098637422.7 sec 0.00 Bytes 0.00 bits/sec
[ 3] -1098637422.7--1098637418.7 sec 0.00 Bytes 0.00 bits/sec
[ 3] -1098637418.7--1098637414.7 sec 0.00 Bytes 0.00 bits/sec
[ 3] -1098637414.7--1098637410.7 sec 0.00 Bytes 0.00 bits/sec
[ 3] -1098637410.7--1098637406.7 sec 0.00 Bytes 0.00 bits/sec
[ 3] -1098637406.7--1098637402.7 sec 0.00 Bytes 0.00 bits/sec
[ 3] -1098637402.7--1098637398.7 sec 0.00 Bytes 0.00 bits/sec
...
Without bandwidth reports it seems to work fine:
% ./iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 127.0.0.1 port 5001 connected with 127.0.0.1 port 32883
[ 4] 0.0-10.0 sec 8.21 GBytes 7.05 Gbits/sec
% ./iperf -c localhost -t 10
------------------------------------------------------------
Client connecting to localhost, TCP port 5001
TCP window size: 49.7 KByte (default)
------------------------------------------------------------
[ 3] local 127.0.0.1 port 32883 connected with 127.0.0.1 port 5001
[ 3] 0.0-10.0 sec 8.21 GBytes 7.05 Gbits/sec
System info:
% uname -a
Linux testhost 2.6.8-9-amd64-k8 #1 Sun Oct 3 18:22:21 CEST 2004 x86_64 GNU/Linux
% cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 5
model name : AMD Opteron(tm) Processor 246
stepping : 10
cpu MHz : 1992.621
cache size : 1024 KB
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow
bogomips : 3915.77
TLB size : 1088 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
What could be the problem, the 64 bit integers may be? Compilation was
completely straightforward with "./configure && make".
Kind regards,
Hans