<div>Good, and How about your CPU's frequency?</div>
<div>Thanks</div><br><br>
<div><span class="gmail_quote">2006/4/10, Beat Meier <<a href="mailto:Beat.Meier@gmx.ch">Beat.Meier@gmx.ch</a>>:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hello<br><br>Testconfig: both sites: SR5 cards, 22dbi grids, madwifi-svn-1457, no wep,<br>link distance 4.4km
<br><br>Below are my test results but first some comments:<br><br>It seems that there is a huge difference if you use iperf client on the ap<br>site or sta site (see below).<br>If iperf client runs on ap and iperf server on sta I get about 28Mbps but if
<br>iperf client<br>runs on sta and iperf server on ap I get only about 17Mbps.<br>I have only one client on all my tests. Is this limitation in the nature of<br>an AP or is<br>this a limitation of madwifi? This is also if the bitrate is fixed!
<br><br>For example channel 149 tests, fix rate on both sites:<br>48M: 18.9 Mbps; -67dbm both sites; 20 hour test (iperf client runs on sta)<br>48M: 23.1 Mbps; -67dbm both sites; 2 hour test (iperf client runs on ap)<br><br>
<br>The best channel with SR5 is channel 149, other channels have about -3dbm<br>drops in signal with same bitrate fixed!<br><br>*********************************************<br>Bit Rate Channel 157<br>Mb Signal Client # Signal Server # Throughput (client on sta)
<br><br>54 -70 # -71/-72 # 15 (Throughput client on ap: 24.8Mbps)<br>48 -68/-69 # -70/-71 # 16.5<br>36 -68 # -69 # 15.5<br>24 -67 # -67 # 12.7<br>6 -67 # -66/-67 # 4.03
<br><br>auto<br>36-54 on ap (iperf server) # 17.0Mbps<br>48 on sta (iperf client)<br><br>54 on ap (iperf client) # 28.0Mbps<br>36-54 on sta (iperf server)<br><br>*********************************************<br>Bit Rate Channel 165
<br>Mb Signal Client # Signal Server # Throughput (client on sta)<br><br>54 -69/-70 # -70 # 17<br>48 -68/-69 # -68/-69 # 18.6<br>36 -67/-68 # -67/-68 # 16.3<br>24 -66/-67 # -65/-64 # 12.7
<br>6 -66/-67 # -65/-64 # 4.03<br><br>auto<br>36-54 on ap (iperf server) # 18.7Mbps<br>36-48 on sta (iperf client)<br><br>or<br>48 on ap (iperf client) # 24.5Mbps<br>54 on sta (iperf server)<br>*********************************************
<br><br>The constelation iperf client on ap is much more "stable" i.e. bitrat does<br>not change as much as if client is running on sta!<br>But this is not the problem of the lower throughpout because you can fix the
<br>bitrate as noted and there is a hughe difference.<br>In the lower bitrates they are almost the same but in the higher there are<br>differences!!!<br><br>Here one of my lab test:<br><br>Lab tests, only 4m, Channel 149<br>
<br>client on AP, server on STA<br>54 23.8 -31<br>48 29.9 -28/-29<br>36 23.5 -27<br>24 16.4 -25/-26<br>18 12.9 -25/-26<br>12 8.5 -25/-26<br>9 6.6 -25/-26<br>6 4.37 -25/-26<br><br>client on sta, server on AP
<br>54 19.2<br>48 18.3<br>36 16<br>24 12.8<br>18 10.7<br>12 8.0<br>9 6.6<br>6 4.69<br><br>--<br>Analog-/ISDN-Nutzer sparen mit GMX SmartSurfer bis zu 70%!<br>Kostenlos downloaden: <a href="http://www.gmx.net/de/go/smartsurfer">
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https://lists.sourceforge.net/lists/listinfo/madwifi-devel</a><br></blockquote></div><br><br clear="all"><br>-- <br>Regards,<br>Wang.