Hello, I use the Virtex II-Pro Board for a webserver application. A client uses Firefox to load the webpage stored on the server.
I use EDK 8.2, Microblaze and xilkernel OS and Priority scheduling. It takes a long time (40 seconds) to load the index.html file. I look at Ethereal and I see that the server doesn’t receive many TCP Packets, which are being sent again 3 seconds later (TCP Retransmisssion). I also see TCP Window Update and TCP Dup ACK mistakes. That’s why it takes so long to load the whole page. Please I need your help; I have tried to change the lwip parameters with no luck. These are the parameters of my mss file. I haven’ changed anything neither in the single files drivers nor in lwipopts.h. All are standard values of Xilinx and the stack does not function properly. Does anyone have the same problem??? I send you attached the log of Ethereal, to be opened with Ethereal. Thanks, Armand MSS FILE: BEGIN OS PARAMETER OS_NAME = xilkernel PARAMETER OS_VER = 3.00.a PARAMETER PROC_INSTANCE = microblaze_0 PARAMETER systmr_freq = 100000000 PARAMETER max_pthreads = 100 PARAMETER pthread_stack_size = 16384 PARAMETER max_readyq = 100 PARAMETER config_time = true PARAMETER max_tmrs = 100 PARAMETER config_sema = true PARAMETER max_sem = 25 PARAMETER max_sem_waitq = 100 PARAMETER stdin = RS232_Uart PARAMETER stdout = RS232_Uart PARAMETER sysintc_spec = opb_intc_0 PARAMETER systmr_dev = opb_timer_1 PARAMETER sched_type = SCHED_PRIO PARAMETER static_pthread_table = ((serverThread,1),(timerCounterThread,1),(GNoC_Thread,1)) END BEGIN LIBRARY PARAMETER LIBRARY_NAME = lwip PARAMETER LIBRARY_VER = 2.00.a PARAMETER api_mode = SOCKETS_API PARAMETER PROC_INSTANCE = microblaze_0 PARAMETER mem_size = 65538 PARAMETER memp_num_tcp_seg = 510 PARAMETER memp_num_sys_timeout = 5 PARAMETER emaclite_instances = ((Ethernet_MAC,0x00,0x50,0xC2,0x2F,0x9E,0xE7)) END -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kanns mit allen: http://www.gmx.net/de/go/multimessenger
Problem_retransmissions
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