請問BB Black (SDK Kernel 3.2) 使用USB 無線網路卡 SoftAP問題

我使用BB Black(SDK Kernel 3.2)  + TP LINK(TLWN821N)

執行hostapd ,使用TCP Socket  

BB Black 一次 Send 1MB 

PC  一次僅 Recv  1024B,

執行下列測試

發現時間從0.8~20秒不等..

請問這是什麼問題造成的呢??是SoftAP問題嗎??

此外BB Black會一直printf下列訊息,是否正常??

[ 566.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 568.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 570.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 572.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 574.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 576.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 578.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 580.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 582.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 584.695831] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200
[ 586.716247] asoc check, sta(5c:63:bf:bc:90:86) is alive
[ 586.721771] rtl8192c_sreset_xmit_status_check REG_TXDMA_STATUS:0x00003200

下面是我的測試時間資訊~~~~~~~~~~~~~~~~~~~~~

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 2.169784

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 2.102514

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 3.721187

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 7.432658

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 5.622960

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 9.443307

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 6.274986

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 1.277095

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 2.118817

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 20.933685

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 1.220638

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 0.842505

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 2.023119

Any Key to Get Data請按任意鍵繼續 . . .

cksum=60 len=1000000 Time Elapse(sec): 20.426263