Avinash Patil
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UDP Transmission failed.No Buffer space Available!!
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Avinash Patil
04/29/2008 8:57 PM
post7483
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UDP Transmission failed.No Buffer space Available!!
Hi,
We are testing WLAN driver for throughputs.For this we have ported iperf utility to QNX.During execution of the UDP
transmission tests, we have seen that test terminates abruptly.Here is iperf UDP transmission output.
[/fcp/bin]# iperf -c 192.168.1.200 -u -b 48M -t 30
Platform Tester IPC TX ch. opening failed
------------------------------------------------------------
Client connecting to 192.168.1.200, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size: 9.00 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.1.190 port 65529 connected with 192.168.1.200 port 5001
write failed: No buffer space available
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 0.2 sec 808 KBytes 30.8 Mbits/sec
[ 3] Server Report:
[ 3] 0.0- 0.5 sec 808 KBytes 12.1 Mbits/sec 1.260 ms 1/ 564 (0.18%)
[ 3] Sent 564 datagrams
[/fcp/bin]# iperf -c 192.168.1.200 -u -b 30M -t 30
------------------------------------------------------------
Client connecting to 192.168.1.200, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size: 9.00 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.1.190 port 65528 connected with 192.168.1.200 port 5001
write failed: No buffer space available
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 0.2 sec 570 KBytes 25.9 Mbits/sec
[ 3] Server Report:
[ 3] 0.0- 1.5 sec 570 KBytes 3.15 Mbits/sec 4.806 ms 1/ 398 (0.25%)
[ 3] Sent 398 datagrams
Iperf Error output is "write failed: No buffer space available".
Can anybody shed some light on this?
We are using io-pkt-v4-hc driver.Atheros driver is LGE NDA driver.
Thanks in Advance.
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