Date: Thu, 20 Sep 2012 23:57:06 -0400 From: Derrick Edwards <dantavious313@gmail.com> To: freebsd-wireless@freebsd.org Subject: Performance of AR9287 Message-ID: <201209202357.06358.dantavious313@gmail.com>
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Hi,
I am utilizing an mini PCIE AR9287 mini PCI-E. It is not performing as
expected thus far. I utilized iperf to test speed from laptops (both FreeBSD
and Windows) to local default gateway. The results are show below with the
first result being executed from the Windows Laptop and FreeBSD afterwards.
Are these results to be expected?
Derrick
Windows
Server listening on TCP port 5001
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.15.3 port 5001 connected with 192.168.15.153 port 58137
------------------------------------------------------------
Client connecting to 192.168.15.153, TCP port 5001
TCP window size: 56.5 KByte (default)
------------------------------------------------------------
[ 6] local 192.168.15.3 port 49723 connected with 192.168.15.153 port 5001
Waiting for server threads to complete. Interrupt again to force quit.
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 14.3 MBytes 12.0 Mbits/sec
[ 6] 0.0-10.0 sec 74.4 MBytes 62.4 Mbits/sec
FreeBSD 10.0-CURRENT #0: Thu Sep 20 16:22:56 EDT 2012
Server listening on TCP port 5001
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.15.3 port 5001 connected with 192.168.15.238 port 44678
------------------------------------------------------------
Client connecting to 192.168.15.238, TCP port 5001
TCP window size: 32.5 KByte (default)
------------------------------------------------------------
[ 6] local 192.168.15.3 port 40554 connected with 192.168.15.238 port 5001
Waiting for server threads to complete. Interrupt again to force quit.
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 74.4 MBytes 62.3 Mbits/sec
[ 6] 0.0-10.1 sec 9.87 MBytes 8.21 Mbits/sec
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 1c:65:9d:ab:18:6f
inet 192.168.15.238 netmask 0xffffff00 broadcast 192.168.15.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: IEEE 802.11 Wireless Ethernet MCS mode 11ng
status: associated
ssid datdude channel 1 (2412 MHz 11g ht/40+) bssid 10:bf:48:d9:1e:a0
regdomain FCC country US indoor ecm authmode WPA2/802.11i privacy ON
deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 7 scanvalid 60
protmode CTS ampdulimit 64k ampdudensity 8 shortgi wme burst
roaming MANUAL
./athstats
495670 data frames received
605640 data frames transmit
1129 tx frames with an alternate rate
21720 short on-chip tx retries
15941 long on-chip tx retries
34 tx failed 'cuz too many retries
428 mib overflow interrupts
9 tx linearized to cluster
MCS4 current transmit rate
1 watchdog timeouts
12 beacon miss interrupts
37 tx failed 'cuz destination filtered
21042 rx failed 'cuz of bad CRC
7 rx failed 'cuz decryption
5 rx failed 'cuz of PHY err
5 illegal service
354 periodic calibrations
-0/+0 TDMA slot adjust (usecs, smoothed)
58 rssi of last ack
48 avg recv rssi
-96 rx noise floor
4 phantom beacon misses
237 tx frames through raw api
303067 A-MPDU sub-frames received
136445 Half-GI frames received
321349 40MHz frames received
4339 CRC errors for non-last A-MPDU subframes
179 CRC errors for last subframe in an A-MPDU
128845 Frames transmitted with HT Protection
69601 Number of frames retransmitted in software
556475 A-MPDU sub-frame TX attempt success
69579 A-MPDU sub-frame TX attempt failures
6 A-MPDU TX frame failures
2 first step level
1 OFDM weak signal detect
140 ANI increased noise immunity
140 ANI decrease noise immunity
1 ANI increased spur immunity
1 ANI decrease spur immunity
127 ANI disabled OFDM weak signal detect
127 ANI disabled CCK weak signal threshold
2 ANI increased first step level
251877 cumulative OFDM phy error count
348293 cumulative CCK phy error count
431 ANI forced listen time to zero
15583 missing ACK's
23402 RTS without CTS
94745 successful RTS
77637 bad FCS
102509 beacons received
66 average rssi (beacons only)
59 average rssi (all rx'd frames)
60 average rssi (ACKs only)
Antenna profile:
[0] tx 87529 rx 100
[1] tx 0 rx 495570
ath0@pci0:2:0:0: class=0x028000 card=0x30a417aa chip=0x002e168c
rev=0x01 hdr=0x00
vendor = 'Atheros Communications Inc.'
device = 'AR9287 Wireless Network Adapter (PCI-Express)'
class = network
bar [10] = type Memory, range 64, base 0xb8500000, size 65536, enabled
cap 01[40] = powerspec 3 supports D0 D1 D3 current D0
cap 05[50] = MSI supports 1 message
cap 10[60] = PCI-Express 2 legacy endpoint max data 128(128) link x1(x1)
ecap 0001[100] = AER 1 0 fatal 0 non-fatal 0 corrected
ecap 0002[140] = VC 1 max VC0
ecap 0003[160] = Serial 1 001517ffff241412
ecap 0004[170] = Power Budgeting 1
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