Openmoko Bug #1656: Bad A2DP performance

Openmoko Public Trac bugs at docs.openmoko.org
Wed Jul 23 02:15:49 CEST 2008


#1656: Bad A2DP performance
---------------------+------------------------------------------------------
 Reporter:  Mercury  |        Owner:  openmoko-devel
     Type:  defect   |       Status:  new           
 Priority:  normal   |    Milestone:                
Component:  unknown  |      Version:                
 Severity:  normal   |   Resolution:                
 Keywords:           |     Blocking:                
Blockedby:           |  
---------------------+------------------------------------------------------

Comment(by Mercury):

 l2ping looked like this when I tried playing at 44100Hz sound sample rate:

 root at lisa:/# l2ping 00:15:0E:A0:63:5A
 Ping: 00:15:0E:A0:63:5A from 00:06:6E:17:24:C5 (data size 44) ...
 4 bytes from 00:15:0E:A0:63:5A id 0 time 16.62ms
 4 bytes from 00:15:0E:A0:63:5A id 1 time 34.33ms
 4 bytes from 00:15:0E:A0:63:5A id 2 time 31.22ms
 4 bytes from 00:15:0E:A0:63:5A id 3 time 41.30ms
 4 bytes from 00:15:0E:A0:63:5A id 4 time 46.31ms
 4 bytes from 00:15:0E:A0:63:5A id 5 time 26.58ms
 4 bytes from 00:15:0E:A0:63:5A id 6 time 26.49ms
 4 bytes from 00:15:0E:A0:63:5A id 7 time 29.40ms
 4 bytes from 00:15:0E:A0:63:5A id 8 time 30.37ms
 4 bytes from 00:15:0E:A0:63:5A id 9 time 36.55ms
 4 bytes from 00:15:0E:A0:63:5A id 10 time 33.41ms
 4 bytes from 00:15:0E:A0:63:5A id 11 time 35.38ms
 4 bytes from 00:15:0E:A0:63:5A id 12 time 33.41ms
 4 bytes from 00:15:0E:A0:63:5A id 13 time 32.40ms
 4 bytes from 00:15:0E:A0:63:5A id 14 time 40.53ms
 4 bytes from 00:15:0E:A0:63:5A id 15 time 45.44ms
 4 bytes from 00:15:0E:A0:63:5A id 16 time 197.87ms
 no response from 00:15:0E:A0:63:5A: id 17
 no response from 00:15:0E:A0:63:5A: id 18
 no response from 00:15:0E:A0:63:5A: id 19
 no response from 00:15:0E:A0:63:5A: id 20
 no response from 00:15:0E:A0:63:5A: id 21
 no response from 00:15:0E:A0:63:5A: id 22
 no response from 00:15:0E:A0:63:5A: id 23
 no response from 00:15:0E:A0:63:5A: id 24
 no response from 00:15:0E:A0:63:5A: id 25
 4 bytes from 00:15:0E:A0:63:5A id 26 time 3809.00ms
 4 bytes from 00:15:0E:A0:63:5A id 27 time 37.09ms
 4 bytes from 00:15:0E:A0:63:5A id 28 time 34.14ms
 4 bytes from 00:15:0E:A0:63:5A id 29 time 35.09ms
 4 bytes from 00:15:0E:A0:63:5A id 30 time 36.10ms


 And it looked like this when I tried it at 16000Hz

 root at lisa:/# l2ping 00:15:0E:A0:63:5A
 Ping: 00:15:0E:A0:63:5A from 00:06:6E:17:24:C5 (data size 44) ...
 4 bytes from 00:15:0E:A0:63:5A id 0 time 10.78ms
 4 bytes from 00:15:0E:A0:63:5A id 1 time 30.08ms
 4 bytes from 00:15:0E:A0:63:5A id 2 time 34.22ms
 4 bytes from 00:15:0E:A0:63:5A id 3 time 41.09ms
 4 bytes from 00:15:0E:A0:63:5A id 4 time 27.22ms
 4 bytes from 00:15:0E:A0:63:5A id 5 time 80.34ms
 4 bytes from 00:15:0E:A0:63:5A id 6 time 10.36ms
 no response from 00:15:0E:A0:63:5A: id 7
 4 bytes from 00:15:0E:A0:63:5A id 8 time 10060.39ms
 4 bytes from 00:15:0E:A0:63:5A id 9 time 2219.70ms
 4 bytes from 00:15:0E:A0:63:5A id 10 time 28.56ms
 4 bytes from 00:15:0E:A0:63:5A id 11 time 33.69ms
 4 bytes from 00:15:0E:A0:63:5A id 12 time 34.57ms
 4 bytes from 00:15:0E:A0:63:5A id 13 time 28.71ms

-- 
Ticket URL: <https://docs.openmoko.org/trac/ticket/1656#comment:1>
docs.openmoko.org <http://docs.openmoko.org/trac/>
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