latency problems
Good Afternoon
I have some problems concerning my round trip time using l2ping. I have two=
PCs(kernel 2.6.17) each with a Bluegiga WT11 module connected via USB. Whe=
n I use l2ping the round trip time is between 14ms and up to sometimes 65ms= . I also wrote two programs that send and return numbers and count the tim= e between sending and receiving a number. Here the times are similar. Howev= er when I reduce the time between the pings the round trip time is a bit sh= orter.
My questions:
- are these times normal (average of 20ms)?
- are the "extremely" varying times normal? =
- are the times dependent to the power management of the BT-module
I would appreciate any help
Regards
Chris
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Quoted 9 lines · Christian Gebhard
Good Afternoon
I have some problems concerning my round trip time using l2ping. I have two PCs(kernel 2.6.17) each with a Bluegiga WT11 module connected via USB. When I use l2ping the round trip time is between 14ms and up to sometimes 65ms. I also wrote two programs that send and return numbers and count the time between sending and receiving a number. Here the times are similar. However when I reduce the time between the pings the round trip time is a bit shorter.
My questions:
- are these times normal (average of 20ms)?
- are the "extremely" varying times normal?
- are the times dependent to the power management of the BT-module
I can not give any help unless you give the output of hcidump -x -V It sounds like that some retransmissions occured.
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