Date: Mon, 18 Feb 2013 17:01:49 +0530 From: Mukunda Haveri <mukunda@pointred.co> To: Adrian Chadd <adrian@freebsd.org>, freebsd-mips@freebsd.org Subject: WiFi TDMA AR7161, results and moving forward Message-ID: <CAK3PU_C9AW3xO1mofwT1iH_bgrBDYk3zJaLMJCbiRN-jakm%2BFA@mail.gmail.com>
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Thanks to Adrian's WiFi scripts, we were able to get the TDMA working on the Compex-AR7161 board. The results were surprising; we are able to do, close to 100 mbps one way iperf tests and 40 mbps bidirectional Iperf in non-TDMA mode. We were able to achieve this, only after disabling all the debug options in the kernel. Porting the U-Boot to the Compex-boards did take lot of effort, but not the "FreeBsd". Many thanks to all the "scientists" who made this possible. Moving forward, it is observed that the TDMA throughput peaks at 9 mbps and refuses to move beyond. After reducing the slot duration to 1 ms, the throughput increased to around 12 mbps. I was expecting the TDMA to yield a better throughput because of collision-less scheme. I would like to understand if our observation is expected or if there's some inherent limitation within the TDMA controller. It will be good to have some feedback from TDMers with similar experience or better. Thanks again, HSM DISCLAIMER: The information contained in this message (including any attachments) is confidential and may be privileged. If you have received it by mistake please notify the sender by return e-mail and permanently delete this message and any attachments from your system. Any dissemination, use, review, distribution, printing or copying of this message in whole or in part is strictly prohibited. Please note that e-mails are susceptible to change. PointRed Telecom Ltd (including its group companies) shall not be liable for the improper or incomplete transmission of the information contained in this communication nor for any delay in its receipt or damage to your system and does not guarantee that the integrity of this communication has been maintained or that this communication is free of viruses, interceptions or interferences.
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