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Old 06-12-2009, 11:12 AM   #1
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Registered: Jun 2009
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Why are bluetooth PAN latencies so high in linux

I've been setting up a bluetooth PAN between my phone and my desktop and while everything seems to work, the lantency on the connection is sometimes as high as 2000ms! This didnt seem right, so I tried the same setup inside a Windows XP VM I had, with windows bluetooth drivers, and the latency was only a fraction (~400ms) of what it was in lunux. Throughput was similar, only the latency was different.

What could be causing such a big difference in times?

I use a USB Bluetooth adapter with the btusb driver in 2.6.29-gentoo-r1 x64

lsusb for bluetooth adapter:
Bus 004 Device 005: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

Last edited by fish199902; 06-12-2009 at 11:36 AM. Reason: Information


bluetooth, driver, latency, network

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