> > I did notice some kernel messages: (2.6.14-rc2)
> >
> > Sep 28 13:09:56 node7 kernel: printk: 1 messages suppressed.
> > Sep 28 13:09:56 node7 kernel: ccid3_hc_tx_packet_recv: r_sample=184us,
> > t_elapsed=11600us
>
> timing routines are still fishy, this warning is emitted when the ELAPSED_TIME
> option received ie bigger than the calculated RTT :-\
>
> > Sep 28 13:09:56 node7 kernel: ccid3_hc_tx_packet_recv: client, sk=f4e8c040,
> > seqno 927893559816(DATAACK) does't exist in history!
>
> This one... does your test environment (nistnet IIRC) does packet duplication
> or
> reordering?
In this case, I was using plain Ethernet - without the bandwidth restriction.
In other words, two laptops on a ethernet hub.
That's it.
My vocoder uses about 24Kb/s rate.
I tried it again to make sure. I didn't reboot the OS. I just re-started the
application.
I copied the client/server code from ttcp. Perhaps I used bad values for the
following:
---
buflen=MAX_LEN;
if (setsockopt(wunit, SOL_DCCP, DCCP_SOCKOPT_PACKET_SIZE,
&buflen, sizeof(buflen)) < 0)
---
where MAX_LEN is 52;
I have not set the SND_TIMEO value yet.
Here are the logs - one from the server, and one from the client.
::::::::::::::
Server
::::::::::::::
Sep 30 09:59:16 localhost kernel: printk: 59 messages suppressed.
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: r_sample=183us,
t_elapsed=27620us
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914548(DATAACK) does't exist in history!
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914549(DATAACK) does't exist in history!
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914550(DATAACK) does't exist in history!
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914551(DATAACK) does't exist in history!
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914552(DATAACK) does't exist in history!
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914553(DATAACK) does't exist in history!
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914554(DATAACK) does't exist in history!
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914555(DATAACK) does't exist in history!
Sep 30 09:59:16 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914556(DATAACK) does't exist in history!
Sep 30 09:59:21 localhost kernel: printk: 19 messages suppressed.
Sep 30 09:59:21 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914578(DATAACK) does't exist in history!
Sep 30 09:59:27 localhost kernel: printk: 4 messages suppressed.
Sep 30 09:59:27 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914587(DATAACK) does't exist in history!
Sep 30 09:59:31 localhost kernel: printk: 67 messages suppressed.
Sep 30 09:59:31 localhost kernel: ccid3_hc_tx_packet_recv: r_sample=181us,
t_elapsed=16460us
Sep 30 09:59:36 localhost kernel: printk: 200 messages suppressed.
Sep 30 09:59:36 localhost kernel: ccid3_hc_tx_packet_recv: server, sk=f6119040,
seqno 112258914956(DATAACK) does't exist in history!
Sep 30 09:59:41 localhost kernel: printk: 189 messages suppressed.
Sep 30 09:59:41 localhost kernel: ccid3_hc_tx_packet_recv: r_sample=182us,
t_elapsed=25810us
::::::::::::::
Client
::::::::::::::
Sep 30 09:59:05 node7 kernel: printk: 61 messages suppressed.
Sep 30 09:59:05 node7 kernel: ccid3_hc_tx_packet_recv: r_sample=181us,
t_elapsed=6000us
Sep 30 09:59:05 node7 kernel: ccid3_hc_tx_packet_recv: client, sk=f4e8c040,
seqno 1036613861064(DATAACK) does't exist in history!
Sep 30 09:59:07 node7 kernel: ccid3_hc_tx_packet_recv: client, sk=f4e8c040,
seqno 1036613861086(DATAACK) does't exist in history!
Sep 30 09:59:07 node7 kernel: ccid3_hc_tx_packet_recv: r_sample=200us,
t_elapsed=621210us
Sep 30 09:59:12 node7 kernel: ccid3_hc_tx_packet_recv: client, sk=f4e8c040,
seqno 1036613861101(DATAACK) does't exist in history!
Sep 30 09:59:14 node7 kernel: ccid3_hc_tx_packet_recv: client, sk=f4e8c040,
seqno 1036613861102(DATAACK) does't exist in history!
Sep 30 09:59:14 node7 kernel: ccid3_hc_tx_packet_recv: client, sk=f4e8c040,
seqno 1036613861103(DATAACK) does't exist in history!
Sep 30 09:59:16 node7 kernel: ccid3_hc_tx_packet_recv: r_sample=192us,
t_elapsed=2373960us
Sep 30 09:59:19 node7 kernel: ccid3_hc_tx_packet_recv: r_sample=183us,
t_elapsed=9380us
Sep 30 09:59:19 node7 kernel: ccid3_hc_tx_packet_recv: client, sk=f4e8c040,
seqno 1036613861141(DATAACK) does't exist in history!
Sep 30 09:59:19 node7 kernel: ccid3_hc_tx_packet_recv: r_sample=179us,
t_elapsed=380us
Sep 30 09:59:20 node7 kernel: ccid3_hc_tx_packet_recv: client, sk=f4e8c040,
seqno 1036613861147(DATAACK) does't exist in history!
Sep 30 09:59:20 node7 kernel: printk: 10 messages suppressed.
Sep 30 09:59:20 node7 kernel: ccid3_hc_tx_packet_recv: r_sample=179us,
t_elapsed=6040us
Sep 30 09:59:25 node7 kernel: printk: 85 messages suppressed.
Sep 30 09:59:25 node7 kernel: ccid3_hc_tx_packet_recv: r_sample=178us,
t_elapsed=5940us
Sep 30 09:59:30 node7 kernel: printk: 98 messages suppressed.
Sep 30 09:59:30 node7 kernel: ccid3_hc_tx_packet_recv: r_sample=179us,
t_elapsed=5990us
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