I ran some tests to compare the performance of the UW2453 and AL2230S RF chips.
My tests were downloading a 36mb file over the internet from a fast host (HTTP). When repeating the tests, I unloaded the module, replugged the device, and loaded the module again inbetween each test. I made sure not to change the location or orientation of the device, etc. I measured the average transfer rate of the download using wget, and the number of failed transmissions by counting the retry_failed interrupts. It may sound odd to count failed transmissions in a download test but keep reading anyway... I used the vendor driver in all tests as this is our baseline for performance. I repeated some tests after using zd1211rw and found similar results. zydas 2.16.0.0 + UW2453: 1. 1051 fails, 816kb/sec 2. 1799 fails, 643kb/sec 3. 2186 fails, 381kb/sec zydas 2.16.0.0 + AL2230S: 1. 0 fails, 1020kb/sec 2. 0 fails, 1009kb/sec 2. 0 fails, 1018kb/sec Conclusion: UW2453 sucks: even when not transmitting anything other than HTTP control and TCP ACKs, there were thousands of failed transmissions and the transfer rate suffered. Daniel ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Zd1211-devs mailing list - http://zd1211.ath.cx/ Unsubscribe: https://lists.sourceforge.net/lists/listinfo/zd1211-devs
