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Re: bad TSO performance in 2.6.9-rc2-BK

To: "David S. Miller" <davem@xxxxxxxxxxxxx>
Subject: Re: bad TSO performance in 2.6.9-rc2-BK
From: Andi Kleen <ak@xxxxxxx>
Date: Thu, 30 Sep 2004 11:29:26 +0200
Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>, ak@xxxxxxx, niv@xxxxxxxxxx, jheffner@xxxxxxx, andy.grover@xxxxxxxxx, anton@xxxxxxxxx, netdev@xxxxxxxxxxx
In-reply-to: <20040929213310.40f5f33a.davem@xxxxxxxxxxxxx>
References: <Pine.NEB.4.33.0409291648560.3434-100000@xxxxxxxxxxxxxx> <415B24C0.2020208@xxxxxxxxxx> <20040929145050.71afa1ac.davem@xxxxxxxxxxxxx> <20040929215613.GC26714@xxxxxxxxxxxxx> <20040929162923.796d142e.davem@xxxxxxxxxxxxx> <20040930000515.GA10496@xxxxxxxxxxxxxxxxxxx> <20040929213310.40f5f33a.davem@xxxxxxxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx
> Right.  This patch below combines that with adjustment of socket
> send queue usage when we trim the head.

I tested this patch on rc3. First it doesn't crash anymore. Thanks.

Talking to another rc3 kernel with tg3 tso on is as fast as tso off now.
Unfortunately the ACKs still look funny. 

Talking to a 2.6.5 kernel tso on is still about 20 MB/s slower than
the non TSO case, so the problem seems to be still there.

-Andi

2.6.9rc3/e1000/CSA/TSO -> 2.6.9rc3/tg3/33MhzPCI
Fast.

Still stretch ack. 

11:13:25.721704 10.23.202.15.32777 > 10.23.202.31.32784: . ack 7241 win 5068 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721709 10.23.202.15.32777 > 10.23.202.31.32784: . ack 8689 win 5792 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721715 10.23.202.15.32777 > 10.23.202.31.32784: . ack 10137 win 6516 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721726 10.23.202.15.32777 > 10.23.202.31.32784: . ack 11585 win 7240 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721731 10.23.202.15.32777 > 10.23.202.31.32784: . ack 13033 win 7964 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721882 10.23.202.31.32784 > 10.23.202.15.32777: . 13033:14481(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.721887 10.23.202.31.32784 > 10.23.202.15.32777: . 14481:15929(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.721893 10.23.202.31.32784 > 10.23.202.15.32777: P 15929:16385(456) ack 
1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.721940 10.23.202.31.32784 > 10.23.202.15.32777: . 16385:17833(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.721943 10.23.202.31.32784 > 10.23.202.15.32777: . 17833:19281(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.721947 10.23.202.31.32784 > 10.23.202.15.32777: . 19281:20729(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.721951 10.23.202.31.32784 > 10.23.202.15.32777: . 20729:22177(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.721970 10.23.202.15.32777 > 10.23.202.31.32784: . ack 14481 win 8688 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721975 10.23.202.15.32777 > 10.23.202.31.32784: . ack 15929 win 9412 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721980 10.23.202.15.32777 > 10.23.202.31.32784: . ack 16385 win 9412 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721985 10.23.202.15.32777 > 10.23.202.31.32784: . ack 17833 win 10136 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721991 10.23.202.15.32777 > 10.23.202.31.32784: . ack 19281 win 10860 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.721996 10.23.202.15.32777 > 10.23.202.31.32784: . ack 20729 win 11584 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.722018 10.23.202.15.32777 > 10.23.202.31.32784: . ack 22177 win 12308 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.722127 10.23.202.31.32784 > 10.23.202.15.32777: . 22177:23625(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.722134 10.23.202.15.32777 > 10.23.202.31.32784: . ack 23625 win 13032 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.722139 10.23.202.31.32784 > 10.23.202.15.32777: . 23625:25073(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.722142 10.23.202.15.32777 > 10.23.202.31.32784: . ack 25073 win 13756 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.722147 10.23.202.31.32784 > 10.23.202.15.32777: . 25073:26521(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.722151 10.23.202.15.32777 > 10.23.202.31.32784: . ack 26521 win 14480 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.722156 10.23.202.31.32784 > 10.23.202.15.32777: . 26521:27969(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.722160 10.23.202.15.32777 > 10.23.202.31.32784: . ack 27969 win 14962 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.722228 10.23.202.31.32784 > 10.23.202.15.32777: . 27969:29417(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.722236 10.23.202.31.32784 > 10.23.202.15.32777: . 29417:30865(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879786 4294921018> (DF)
11:13:25.722243 10.23.202.31.32784 > 10.23.202.15.32777: . 30865:32313(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722249 10.23.202.31.32784 > 10.23.202.15.32777: . 32313:33761(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722273 10.23.202.31.32784 > 10.23.202.15.32777: P 33761:35209(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722277 10.23.202.31.32784 > 10.23.202.15.32777: . 35209:36657(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722282 10.23.202.31.32784 > 10.23.202.15.32777: . 36657:38105(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722339 10.23.202.15.32777 > 10.23.202.31.32784: . ack 38105 win 15204 
<nop,nop,timestamp 4294921018 4294879786> (DF)
11:13:25.722415 10.23.202.31.32784 > 10.23.202.15.32777: . 38105:39553(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722419 10.23.202.31.32784 > 10.23.202.15.32777: . 39553:41001(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722425 10.23.202.31.32784 > 10.23.202.15.32777: . 41001:42449(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722429 10.23.202.31.32784 > 10.23.202.15.32777: . 42449:43897(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722433 10.23.202.31.32784 > 10.23.202.15.32777: . 43897:45345(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722436 10.23.202.31.32784 > 10.23.202.15.32777: . 45345:46793(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722459 10.23.202.31.32784 > 10.23.202.15.32777: . 46793:48241(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722463 10.23.202.31.32784 > 10.23.202.15.32777: . 48241:49689(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722472 10.23.202.15.32777 > 10.23.202.31.32784: . ack 39553 win 15928 
<nop,nop,timestamp 4294921019 4294879787> (DF)
11:13:25.722504 10.23.202.15.32777 > 10.23.202.31.32784: . ack 49689 win 15928 
<nop,nop,timestamp 4294921019 4294879787> (DF)
11:13:25.722616 10.23.202.31.32784 > 10.23.202.15.32777: . 49689:51137(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722622 10.23.202.31.32784 > 10.23.202.15.32777: . 51137:52585(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722690 10.23.202.31.32784 > 10.23.202.15.32777: . 52585:54033(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722697 10.23.202.31.32784 > 10.23.202.15.32777: . 54033:55481(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921018> (DF)
11:13:25.722703 10.23.202.31.32784 > 10.23.202.15.32777: . 55481:56929(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921019> (DF)
11:13:25.722710 10.23.202.31.32784 > 10.23.202.15.32777: . 56929:58377(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921019> (DF)
11:13:25.722716 10.23.202.31.32784 > 10.23.202.15.32777: . 58377:59825(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921019> (DF)
11:13:25.722786 10.23.202.31.32784 > 10.23.202.15.32777: P 59825:61273(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921019> (DF)
11:13:25.722793 10.23.202.31.32784 > 10.23.202.15.32777: . 61273:62721(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921019> (DF)
11:13:25.722798 10.23.202.31.32784 > 10.23.202.15.32777: . 62721:64169(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294879787 4294921019> (DF)




2.6.9rc3/e1000/CSA/TSO -> 2.6.5/tg3/33MhzPCI
Slow.

Extreme stretch ack: 

11:19:45.486497 10.23.202.31.32782 > 10.23.202.10.32978: . 27969:29417(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486506 10.23.202.10.32978 > 10.23.202.31.32782: . ack 29417 win 62264 
<nop,nop,timestamp 5148288 4294857431> (DF)
11:19:45.486510 10.23.202.31.32782 > 10.23.202.10.32978: P 29417:30865(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486536 10.23.202.31.32782 > 10.23.202.10.32978: . 30865:32313(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486543 10.23.202.31.32782 > 10.23.202.10.32978: . 32313:33761(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486642 10.23.202.10.32978 > 10.23.202.31.32782: . ack 33761 win 63712 
<nop,nop,timestamp 5148288 4294857431> (DF)
11:19:45.486678 10.23.202.31.32782 > 10.23.202.10.32978: . 33761:35209(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486686 10.23.202.10.32978 > 10.23.202.31.32782: . ack 35209 win 63712 
<nop,nop,timestamp 5148288 4294857431> (DF)
11:19:45.486691 10.23.202.31.32782 > 10.23.202.10.32978: . 35209:36657(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486697 10.23.202.31.32782 > 10.23.202.10.32978: . 36657:38105(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486704 10.23.202.31.32782 > 10.23.202.10.32978: . 38105:39553(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486710 10.23.202.31.32782 > 10.23.202.10.32978: . 39553:41001(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486716 10.23.202.31.32782 > 10.23.202.10.32978: . 41001:42449(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486722 10.23.202.31.32782 > 10.23.202.10.32978: . 42449:43897(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486747 10.23.202.31.32782 > 10.23.202.10.32978: . 43897:45345(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486754 10.23.202.31.32782 > 10.23.202.10.32978: . 45345:46793(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486761 10.23.202.31.32782 > 10.23.202.10.32978: . 46793:48241(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486768 10.23.202.31.32782 > 10.23.202.10.32978: . 48241:49689(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486775 10.23.202.31.32782 > 10.23.202.10.32978: . 49689:51137(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486859 10.23.202.31.32782 > 10.23.202.10.32978: . 51137:52585(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486867 10.23.202.31.32782 > 10.23.202.10.32978: . 52585:54033(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486873 10.23.202.31.32782 > 10.23.202.10.32978: . 54033:55481(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.486880 10.23.202.31.32782 > 10.23.202.10.32978: P 55481:56929(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857431 5148288> (DF)
11:19:45.487018 10.23.202.10.32978 > 10.23.202.31.32782: . ack 56929 win 63712 
<nop,nop,timestamp 5148289 4294857431> (DF)
11:19:45.487279 10.23.202.31.32782 > 10.23.202.10.32978: . 56929:58377(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487288 10.23.202.31.32782 > 10.23.202.10.32978: . 58377:59825(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487294 10.23.202.31.32782 > 10.23.202.10.32978: . 59825:61273(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487299 10.23.202.31.32782 > 10.23.202.10.32978: . 61273:62721(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487305 10.23.202.31.32782 > 10.23.202.10.32978: . 62721:64169(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487311 10.23.202.31.32782 > 10.23.202.10.32978: . 64169:65617(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487316 10.23.202.31.32782 > 10.23.202.10.32978: . 65617:67065(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487370 10.23.202.31.32782 > 10.23.202.10.32978: . 67065:68513(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487376 10.23.202.31.32782 > 10.23.202.10.32978: . 68513:69961(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487382 10.23.202.31.32782 > 10.23.202.10.32978: . 69961:71409(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487388 10.23.202.31.32782 > 10.23.202.10.32978: . 71409:72857(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487393 10.23.202.31.32782 > 10.23.202.10.32978: . 72857:74305(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487398 10.23.202.31.32782 > 10.23.202.10.32978: . 74305:75753(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487421 10.23.202.31.32782 > 10.23.202.10.32978: . 75753:77201(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487427 10.23.202.31.32782 > 10.23.202.10.32978: . 77201:78649(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487433 10.23.202.31.32782 > 10.23.202.10.32978: . 78649:80097(1448) 
ack 1 win 1460 <nop,nop,timestamp 4294857432 5148289> (DF)
11:19:45.487563 10.23.202.10.32978 > 10.23.202.31.32782: . ack 80097 win 63712 
<nop,nop,timestamp 5148289 4294857432> (DF)



2.6.9rc3/e1000/CSA/noTSO -> 2.6.5/tg3/33MhzPCI 
Fast.

Also stretch ACK, but less extreme.

11:26:12.886397 10.23.202.10.32979 > 10.23.202.31.32788: . ack 8689 win 23168 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886405 10.23.202.10.32979 > 10.23.202.31.32788: . ack 10137 win 26064 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886420 10.23.202.10.32979 > 10.23.202.31.32788: . ack 11585 win 28960 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886440 10.23.202.10.32979 > 10.23.202.31.32788: . ack 13033 win 31856 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886488 10.23.202.31.32788 > 10.23.202.10.32979: . 13033:14481(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886500 10.23.202.10.32979 > 10.23.202.31.32788: . ack 14481 win 34752 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886504 10.23.202.31.32788 > 10.23.202.10.32979: . 14481:15929(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886513 10.23.202.10.32979 > 10.23.202.31.32788: . ack 15929 win 37648 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886749 10.23.202.31.32788 > 10.23.202.10.32979: . 15929:17377(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886757 10.23.202.31.32788 > 10.23.202.10.32979: . 17377:18825(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886763 10.23.202.31.32788 > 10.23.202.10.32979: . 18825:20273(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886769 10.23.202.31.32788 > 10.23.202.10.32979: . 20273:21721(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886775 10.23.202.31.32788 > 10.23.202.10.32979: . 21721:23169(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886780 10.23.202.31.32788 > 10.23.202.10.32979: . 23169:24617(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886786 10.23.202.31.32788 > 10.23.202.10.32979: P 24617:26065(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886792 10.23.202.31.32788 > 10.23.202.10.32979: P 26065:27513(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886798 10.23.202.31.32788 > 10.23.202.10.32979: . 27513:28961(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886805 10.23.202.31.32788 > 10.23.202.10.32979: . 28961:30409(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886810 10.23.202.31.32788 > 10.23.202.10.32979: . 30409:31857(1448) 
ack 1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886816 10.23.202.31.32788 > 10.23.202.10.32979: P 31857:32769(912) ack 
1 win 1460 <nop,nop,timestamp 277526 5535752> (DF)
11:26:12.886892 10.23.202.10.32979 > 10.23.202.31.32788: . ack 17377 win 40544 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886901 10.23.202.10.32979 > 10.23.202.31.32788: . ack 18825 win 43440 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886910 10.23.202.10.32979 > 10.23.202.31.32788: . ack 20273 win 46336 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886917 10.23.202.10.32979 > 10.23.202.31.32788: . ack 21721 win 49232 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886925 10.23.202.10.32979 > 10.23.202.31.32788: . ack 23169 win 52128 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886933 10.23.202.10.32979 > 10.23.202.31.32788: . ack 24617 win 55024 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886960 10.23.202.10.32979 > 10.23.202.31.32788: . ack 26065 win 57920 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886976 10.23.202.10.32979 > 10.23.202.31.32788: . ack 27513 win 60816 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886985 10.23.202.10.32979 > 10.23.202.31.32788: . ack 28961 win 63712 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.886995 10.23.202.10.32979 > 10.23.202.31.32788: . ack 30409 win 63712 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.887027 10.23.202.10.32979 > 10.23.202.31.32788: . ack 31857 win 63712 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.887035 10.23.202.10.32979 > 10.23.202.31.32788: . ack 32769 win 63712 
<nop,nop,timestamp 5535752 277526> (DF)
11:26:12.887151 10.23.202.31.32788 > 10.23.202.10.32979: . 32769:34217(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887161 10.23.202.31.32788 > 10.23.202.10.32979: . 34217:35665(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887167 10.23.202.31.32788 > 10.23.202.10.32979: . 35665:37113(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887172 10.23.202.31.32788 > 10.23.202.10.32979: . 37113:38561(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887225 10.23.202.31.32788 > 10.23.202.10.32979: . 38561:40009(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887231 10.23.202.31.32788 > 10.23.202.10.32979: . 40009:41457(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887237 10.23.202.31.32788 > 10.23.202.10.32979: . 41457:42905(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887283 10.23.202.31.32788 > 10.23.202.10.32979: . 42905:44353(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887289 10.23.202.31.32788 > 10.23.202.10.32979: . 44353:45801(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887343 10.23.202.31.32788 > 10.23.202.10.32979: . 45801:47249(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887349 10.23.202.31.32788 > 10.23.202.10.32979: . 47249:48697(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887355 10.23.202.31.32788 > 10.23.202.10.32979: . 48697:50145(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887362 10.23.202.31.32788 > 10.23.202.10.32979: P 50145:51593(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887369 10.23.202.31.32788 > 10.23.202.10.32979: . 51593:53041(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887377 10.23.202.31.32788 > 10.23.202.10.32979: . 53041:54489(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887383 10.23.202.31.32788 > 10.23.202.10.32979: . 54489:55937(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887389 10.23.202.31.32788 > 10.23.202.10.32979: . 55937:57385(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887413 10.23.202.31.32788 > 10.23.202.10.32979: . 57385:58833(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887419 10.23.202.31.32788 > 10.23.202.10.32979: . 58833:60281(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887425 10.23.202.31.32788 > 10.23.202.10.32979: . 60281:61729(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887431 10.23.202.31.32788 > 10.23.202.10.32979: . 61729:63177(1448) 
ack 1 win 1460 <nop,nop,timestamp 277527 5535752> (DF)
11:26:12.887622 10.23.202.10.32979 > 10.23.202.31.32788: . ack 63177 win 63712 
<nop,nop,timestamp 5535753 277527> (DF)
11:26:12.887765 10.23.202.31.32788 > 10.23.202.10.32979: . 63177:64625(1448) 
ack 1 win 1460 <nop,nop,timestamp 277528 5535753> (DF)
11:26:12.887774 10.23.202.31.32788 > 10.23.202.10.32979: . 64625:66073(1448) 
ack 1 win 1460 <nop,nop,timestamp 277528 5535753> (DF)



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