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gerrit-public.fairphone.software / platform / external / bcc / refs/tags/rel/13/fp3/6.A.018.0 / . / tools / tcpcong_example.txt
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jackygam2001a58c7952022-03-24 22:50:19 +0800[diff] [blame]1Demonstrations of tcpcong, the Linux eBPF/bcc version.
2
3This tool traces linux kernel's tcp congestion control status change functions,
4then calculate duration of every status and record it, at last prints it as
5tables or histogram, which can be used for evaluating the tcp congestion
6algorithm's performance.
7
8For example:
9
10./tcpcong
11Tracing tcp congestion control status duration... Hit Ctrl-C to end.
12^C
13LAddrPort RAddrPort Open_ms Dod_ms Rcov_ms Cwr_ms Los_ms Chgs
14192.168.219.3/34968 192.168.219.4/19230 884 12 102 507 0 2721
15192.168.219.3/34976 192.168.219.4/19230 869 12 133 490 0 2737
16192.168.219.3/34982 192.168.219.4/19230 807 0 0 699 0 3158
17192.168.219.3/34988 192.168.219.4/19230 892 16 88 508 0 2540
18192.168.219.3/38946 192.168.219.4/19229 894 13 97 500 0 2697
19192.168.219.3/38950 192.168.219.4/19229 840 10 73 579 1 1840
20192.168.219.3/38970 192.168.219.4/19229 862 17 91 534 0 2339
21192.168.219.3/38982 192.168.219.4/19229 812 13 92 587 0 2102
22192.168.219.3/39070 192.168.219.1/19225 855 7 61 580 0 2826
23192.168.219.3/39098 192.168.219.1/19225 880 8 47 568 0 2557
24192.168.219.3/39112 192.168.219.1/19225 674 2 10 819 0 2867
25192.168.219.3/39120 192.168.219.1/19225 757 1 11 736 0 2978
26192.168.219.3/41146 192.168.219.1/19227 736 1 10 758 0 2972
27192.168.219.3/41162 192.168.219.1/19227 662 2 10 830 0 2889
28192.168.219.3/41178 192.168.219.1/19227 646 2 11 846 0 2858
29192.168.219.3/41192 192.168.219.1/19227 812 9 67 615 0 2204
30192.168.219.3/43856 192.168.219.2/19225 745 1 5 754 0 3067
31192.168.219.3/43858 192.168.219.2/19225 827 4 36 636 0 2130
32192.168.219.3/43872 192.168.219.2/19225 739 0 2 764 0 3035
33192.168.219.3/43880 192.168.219.2/19225 747 0 3 756 0 3144
34192.168.219.3/47230 192.168.219.2/19227 830 4 38 632 0 2554
35192.168.219.3/47242 192.168.219.2/19227 782 3 32 687 0 2136
36192.168.219.3/47272 192.168.219.2/19227 611 1 3 889 0 2629
37192.168.219.3/47294 192.168.219.2/19227 832 3 38 630 0 2631
38192.168.219.3/49716 192.168.219.2/19226 846 4 44 610 0 2562
39192.168.219.3/49746 192.168.219.2/19226 765 0 4 736 0 2998
40192.168.219.3/49760 192.168.219.2/19226 812 2 47 644 0 2273
41192.168.219.3/49766 192.168.219.2/19226 724 0 2 779 0 3106
42192.168.219.3/54076 192.168.219.1/19226 690 1 9 804 0 2939
43192.168.219.3/54096 192.168.219.1/19226 715 2 10 778 0 2974
44192.168.219.3/54114 192.168.219.1/19226 878 6 61 558 0 2742
45192.168.219.3/54120 192.168.219.1/19226 738 0 9 757 0 2959
46192.168.219.3/60926 192.168.219.4/19228 711 11 80 702 0 1870
47192.168.219.3/60930 192.168.219.4/19228 785 0 0 720 0 3325
48192.168.219.3/60942 192.168.219.4/19228 762 0 1 743 0 3342
49192.168.219.3/60948 192.168.219.4/19228 877 11 102 514 0 2654
50
51The example shows all tcp socket's congestion status duration for milliseconds,
52open_ms column is the duration of tcp connection in open status whose cwnd can
53increase; dod_ms column is the duration of tcp connection in disorder status
54who receives disordered packet; rcov_ms column is the duration of tcp
55connection in recovery status who receives 3 duplicated acks; cwr_ms column
56is the duration of tcp connection who receives explicitly congest notifier and
57two acks to reduce the cwnd. the last column chgs prints total status change
58number of the socket.
59
60An interval can be provided, and also optionally a count. Eg, printing output
61every 1 second, and including timestamps (-T):
62./tcpcong -T 1 3
63Tracing tcp congestion control status duration... Hit Ctrl-C to end.
64
6507:37:55
66LAddrPort RAddrPort Open_ms Dod_ms Rcov_ms Cwr_ms Los_ms Chgs
67192.168.219.3/34968 192.168.219.4/19230 742 15 82 311 0 1678
68192.168.219.3/34976 192.168.219.4/19230 700 12 98 340 0 1965
69192.168.219.3/34982 192.168.219.4/19230 634 0 1 516 0 2471
70192.168.219.3/34988 192.168.219.4/19230 692 12 94 354 0 1941
71192.168.219.3/38946 192.168.219.4/19229 722 12 90 323 0 2006
72192.168.219.3/38950 192.168.219.4/19229 420 7 264 439 1 951
73192.168.219.3/38970 192.168.219.4/19229 724 14 90 323 0 1986
74192.168.219.3/38982 192.168.219.4/19229 686 13 87 365 0 1675
75192.168.219.3/39070 192.168.219.1/19225 653 5 46 446 0 1998
76192.168.219.3/39098 192.168.219.1/19225 667 4 38 440 0 2098
77192.168.219.3/39112 192.168.219.1/19225 606 0 1 543 0 2146
78192.168.219.3/39120 192.168.219.1/19225 492 0 205 453 0 1916
79192.168.219.3/41146 192.168.219.1/19227 583 0 3 564 0 2332
80192.168.219.3/41162 192.168.219.1/19227 536 0 1 613 0 2192
81192.168.219.3/41178 192.168.219.1/19227 499 0 2 649 0 2064
82192.168.219.3/41192 192.168.219.1/19227 622 6 34 488 0 1660
83192.168.219.3/43856 192.168.219.2/19225 555 0 1 593 0 2359
84192.168.219.3/43858 192.168.219.2/19225 618 3 28 502 0 1773
85192.168.219.3/43872 192.168.219.2/19225 558 0 0 592 0 2318
86192.168.219.3/43880 192.168.219.2/19225 580 0 1 569 0 2303
87192.168.219.3/47230 192.168.219.2/19227 646 1 18 485 0 1776
88192.168.219.3/47242 192.168.219.2/19227 634 0 20 495 0 1582
89192.168.219.3/47272 192.168.219.2/19227 463 0 1 687 0 1854
90192.168.219.3/47294 192.168.219.2/19227 636 2 27 486 0 1901
91192.168.219.3/49716 192.168.219.2/19226 646 2 28 475 0 1832
92192.168.219.3/49746 192.168.219.2/19226 583 0 0 567 0 2333
93192.168.219.3/49760 192.168.219.2/19226 628 2 26 495 0 1755
94192.168.219.3/49766 192.168.219.2/19226 558 0 0 592 0 2412
95192.168.219.3/54076 192.168.219.1/19226 581 0 2 567 0 2042
96192.168.219.3/54096 192.168.219.1/19226 554 0 2 594 0 2239
97192.168.219.3/54114 192.168.219.1/19226 685 4 33 427 0 1859
98192.168.219.3/54120 192.168.219.1/19226 611 0 3 537 0 2322
99192.168.219.3/60926 192.168.219.4/19228 681 20 101 347 0 1636
100192.168.219.3/60930 192.168.219.4/19228 616 0 1 532 0 2310
101192.168.219.3/60942 192.168.219.4/19228 607 0 1 543 0 2433
102192.168.219.3/60948 192.168.219.4/19228 597 11 76 293 0 1641
103
10407:37:57
105LAddrPort RAddrPort Open_ms Dod_ms Rcov_ms Cwr_ms Los_ms Chgs
106192.168.219.3/34968 192.168.219.4/19230 469 9 255 265 0 1305
107192.168.219.3/34976 192.168.219.4/19230 580 11 91 316 0 1916
108192.168.219.3/34982 192.168.219.4/19230 566 0 0 433 0 2092
109192.168.219.3/34988 192.168.219.4/19230 583 9 63 345 0 1871
110192.168.219.3/38946 192.168.219.4/19229 449 16 69 464 0 1425
111192.168.219.3/38950 192.168.219.4/19229 569 10 68 349 0 1848
112192.168.219.3/38970 192.168.219.4/19229 573 20 66 339 0 1839
113192.168.219.3/38982 192.168.219.4/19229 553 9 60 378 0 1483
114192.168.219.3/39070 192.168.219.1/19225 471 3 243 280 0 1279
115192.168.219.3/39098 192.168.219.1/19225 598 4 37 355 0 1717
116192.168.219.3/39112 192.168.219.1/19225 522 0 1 476 0 1816
117192.168.219.3/39120 192.168.219.1/19225 518 0 1 480 0 2031
118192.168.219.3/41146 192.168.219.1/19227 500 0 3 497 0 1996
119192.168.219.3/41162 192.168.219.1/19227 448 0 2 548 0 1849
120192.168.219.3/41178 192.168.219.1/19227 441 0 4 554 0 1693
121192.168.219.3/41192 192.168.219.1/19227 555 4 34 405 0 1341
122192.168.219.3/43856 192.168.219.2/19225 471 0 3 525 0 2118
123192.168.219.3/43858 192.168.219.2/19225 541 1 25 430 0 1446
124192.168.219.3/43872 192.168.219.2/19225 483 0 1 516 0 2044
125192.168.219.3/43880 192.168.219.2/19225 492 0 0 507 0 2073
126192.168.219.3/47230 192.168.219.2/19227 581 3 29 385 0 1453
127192.168.219.3/47242 192.168.219.2/19227 571 2 22 403 0 1292
128192.168.219.3/47272 192.168.219.2/19227 393 0 0 604 0 1516
129192.168.219.3/47294 192.168.219.2/19227 575 2 27 393 0 1660
130192.168.219.3/49716 192.168.219.2/19226 584 1 25 389 0 1582
131192.168.219.3/49746 192.168.219.2/19226 513 0 0 486 0 2017
132192.168.219.3/49760 192.168.219.2/19226 560 1 24 412 0 1370
133192.168.219.3/49766 192.168.219.2/19226 474 0 0 525 0 2121
134192.168.219.3/54076 192.168.219.1/19226 504 0 1 494 0 1724
135192.168.219.3/54096 192.168.219.1/19226 490 0 2 507 0 1906
136192.168.219.3/54114 192.168.219.1/19226 611 3 25 360 0 1560
137192.168.219.3/54120 192.168.219.1/19226 520 0 1 479 0 2010
138192.168.219.3/60926 192.168.219.4/19228 527 9 53 408 0 1473
139192.168.219.3/60930 192.168.219.4/19228 551 0 0 448 0 1951
140192.168.219.3/60942 192.168.219.4/19228 538 0 0 461 0 2038
141192.168.219.3/60948 192.168.219.4/19228 511 9 68 295 1 1701
142
14307:37:58
144LAddrPort RAddrPort Open_ms Dod_ms Rcov_ms Cwr_ms Los_ms Chgs
145192.168.219.3/34968 192.168.219.4/19230 293 1 226 211 0 755
146192.168.219.3/34976 192.168.219.4/19230 424 4 36 354 0 1489
147192.168.219.3/34982 192.168.219.4/19230 552 0 0 446 0 2249
148192.168.219.3/34988 192.168.219.4/19230 493 4 42 327 0 1715
149192.168.219.3/38946 192.168.219.4/19229 425 4 37 340 41 1478
150192.168.219.3/38950 192.168.219.4/19229 465 5 45 335 0 1586
151192.168.219.3/38970 192.168.219.4/19229 531 5 41 420 0 1863
152192.168.219.3/38982 192.168.219.4/19229 525 5 41 427 0 1625
153192.168.219.3/39070 192.168.219.1/19225 576 4 44 374 0 1787
154192.168.219.3/39098 192.168.219.1/19225 596 6 41 355 0 1782
155192.168.219.3/39112 192.168.219.1/19225 501 0 3 494 0 1887
156192.168.219.3/39120 192.168.219.1/19225 511 0 4 483 0 2070
157192.168.219.3/41146 192.168.219.1/19227 503 0 3 492 0 2068
158192.168.219.3/41162 192.168.219.1/19227 449 1 3 545 0 1962
159192.168.219.3/41178 192.168.219.1/19227 445 0 5 546 0 1907
160192.168.219.3/41192 192.168.219.1/19227 436 4 248 309 0 1208
161192.168.219.3/43856 192.168.219.2/19225 480 0 0 519 0 2108
162192.168.219.3/43858 192.168.219.2/19225 534 3 24 437 0 1644
163192.168.219.3/43872 192.168.219.2/19225 480 0 0 519 0 2068
164192.168.219.3/43880 192.168.219.2/19225 490 0 0 508 0 2083
165192.168.219.3/47230 192.168.219.2/19227 561 3 22 411 0 1556
166192.168.219.3/47242 192.168.219.2/19227 550 2 22 424 0 1485
167192.168.219.3/47272 192.168.219.2/19227 398 0 0 601 0 1537
168192.168.219.3/47294 192.168.219.2/19227 551 1 19 427 0 1712
169192.168.219.3/49716 192.168.219.2/19226 570 1 20 405 0 1712
170192.168.219.3/49746 192.168.219.2/19226 494 0 0 503 0 2052
171192.168.219.3/49760 192.168.219.2/19226 547 1 18 431 0 1673
172192.168.219.3/49766 192.168.219.2/19226 497 0 0 501 0 1983
173192.168.219.3/54076 192.168.219.1/19226 495 0 4 499 0 1849
174192.168.219.3/54096 192.168.219.1/19226 485 0 4 508 0 2037
175192.168.219.3/54114 192.168.219.1/19226 603 5 37 354 0 1671
176192.168.219.3/54120 192.168.219.1/19226 516 0 1 482 0 2047
177192.168.219.3/60926 192.168.219.4/19228 543 5 39 412 0 1708
178192.168.219.3/60930 192.168.219.4/19228 530 0 0 469 0 2096
179192.168.219.3/60942 192.168.219.4/19228 510 0 0 489 0 2234
180192.168.219.3/60948 192.168.219.4/19228 565 4 61 367 0 1956
181
182An local port and remote port can be specified, and also optionally a count.
183Eg printing output every 1 second, and including timestamps (-T) for local
184ports 30000-40000 and remote ports 19225-19227:
185./tcpcong -T -L 30000-40000 -R 19225-19227 1 3
186Tracing tcp congestion control status duration... Hit Ctrl-C to end.
187
18807:39:11
189LAddrPort RAddrPort Open_ms Dod_ms Rcov_ms Cwr_ms Los_ms Chgs
190192.168.219.3/39070 192.168.219.1/19225 668 4 32 455 0 1706
191192.168.219.3/39098 192.168.219.1/19225 692 4 38 424 0 2110
192192.168.219.3/39112 192.168.219.1/19225 564 0 2 593 0 2291
193192.168.219.3/39120 192.168.219.1/19225 599 0 4 555 0 2387
194
19507:39:12
196LAddrPort RAddrPort Open_ms Dod_ms Rcov_ms Cwr_ms Los_ms Chgs
197192.168.219.3/39070 192.168.219.1/19225 576 3 27 391 0 1525
198192.168.219.3/39098 192.168.219.1/19225 580 3 36 379 0 1893
199192.168.219.3/39112 192.168.219.1/19225 474 1 10 512 0 2009
200192.168.219.3/39120 192.168.219.1/19225 505 1 9 483 0 2022
201
20207:39:13
203LAddrPort RAddrPort Open_ms Dod_ms Rcov_ms Cwr_ms Los_ms Chgs
204192.168.219.3/39070 192.168.219.1/19225 546 6 27 418 0 1659
205192.168.219.3/39098 192.168.219.1/19225 564 4 40 390 0 1937
206192.168.219.3/39112 192.168.219.1/19225 479 0 3 514 0 2008
207192.168.219.3/39120 192.168.219.1/19225 515 0 4 479 0 1982
208
209The (-u) option can be specified for recording the duration as miroseconds.
210Eg printing output every 1 second, and including timestamps (-T) and
211microseconds (-u) for local ports 30000-40000 and remote ports 19225-19227:
212./tcpcong -T -u -L 30000-40000 -R 19225-19227 1 3
213Tracing tcp congestion control status duration... Hit Ctrl-C to end.
214
21507:39:44
216LAddrPort RAddrPort Open_us Dod_us Rcov_us Cwr_us Los_us Chgs
217192.168.219.3/39070 192.168.219.1/19225 600971 3232 38601 509796 0 1843
218192.168.219.3/39098 192.168.219.1/19225 667184 5585 26285 453575 0 1969
219192.168.219.3/39112 192.168.219.1/19225 580982 22 1502 569479 0 2210
220192.168.219.3/39120 192.168.219.1/19225 600280 201 955 550752 0 2327
221
22207:39:45
223LAddrPort RAddrPort Open_us Dod_us Rcov_us Cwr_us Los_us Chgs
224192.168.219.3/39070 192.168.219.1/19225 567189 2029 25966 404698 0 1612
225192.168.219.3/39098 192.168.219.1/19225 597201 2263 24073 376454 0 1578
226192.168.219.3/39112 192.168.219.1/19225 500792 846 9297 489264 0 1850
227192.168.219.3/39120 192.168.219.1/19225 518700 94 749 480171 0 1967
228
22907:39:46
230LAddrPort RAddrPort Open_us Dod_us Rcov_us Cwr_us Los_us Chgs
231192.168.219.3/39070 192.168.219.1/19225 587340 5324 37035 370066 0 1602
232192.168.219.3/39098 192.168.219.1/19225 532986 5630 31624 345336 0 1319
233192.168.219.3/39112 192.168.219.1/19225 481936 1129 6244 510235 0 1909
234192.168.219.3/39120 192.168.219.1/19225 507196 316 6200 485737 0 1957
235
236
237the ipv6 example with (-u) option can be shown.
238Eg printing output every 1 second, and including timestamps (-T) and
239microseconds (-u) for local ports 30000-40000 and remote ports 19225-19227:
240./tcpcong.py -T -u -L 30000-40000 -R 19225-19227 1 3
241Tracing tcp congestion control status duration... Hit Ctrl-C to end.
242
24311:31:55
244LAddrPort6 RAddrPort6 Open_us Dod_us Rcov_us Cwr_us Los_us Chgs
245fe80::bace:f6ff:fe14:d21c/32810 fe80::bace:f6ff:fe43:fe96/19226 876328 0 0 137957 0 235
246fe80::bace:f6ff:fe14:d21c/32812 fe80::bace:f6ff:fe43:fe96/19226 757739 0 0 283114 0 590
247fe80::bace:f6ff:fe14:d21c/32814 fe80::bace:f6ff:fe43:fe96/19226 855426 0 0 136134 0 231
248fe80::bace:f6ff:fe14:d21c/32816 fe80::bace:f6ff:fe43:fe96/19226 695271 0 0 345443 0 606
249
25011:31:56
251LAddrPort6 RAddrPort6 Open_us Dod_us Rcov_us Cwr_us Los_us Chgs
252fe80::bace:f6ff:fe14:d21c/32810 fe80::bace:f6ff:fe43:fe96/19226 913925 0 0 81995 0 92
253fe80::bace:f6ff:fe14:d21c/32812 fe80::bace:f6ff:fe43:fe96/19226 785024 0 0 202819 0 777
254fe80::bace:f6ff:fe14:d21c/32814 fe80::bace:f6ff:fe43:fe96/19226 920963 0 0 80715 0 111
255fe80::bace:f6ff:fe14:d21c/32816 fe80::bace:f6ff:fe43:fe96/19226 765172 0 0 222897 0 734
256
25711:31:57
258LAddrPort6 RAddrPort6 Open_us Dod_us Rcov_us Cwr_us Los_us Chgs
259fe80::bace:f6ff:fe14:d21c/32810 fe80::bace:f6ff:fe43:fe96/19226 839563 0 0 98313 0 149
260fe80::bace:f6ff:fe14:d21c/32812 fe80::bace:f6ff:fe43:fe96/19226 534816 0 0 329683 0 495
261fe80::bace:f6ff:fe14:d21c/32814 fe80::bace:f6ff:fe43:fe96/19226 841706 103 2404 91273 0 132
262fe80::bace:f6ff:fe14:d21c/32816 fe80::bace:f6ff:fe43:fe96/19226 633320 0 0 286584 0 565
263
264
265The distribution of congestion status duration can be printed as a histogram
266with the -d option and also optionally a count. Eg printing output every
2671 second for microseconds, and including timestamps (-T):
268./tcpcong.py -d -u -T 1 2
269Tracing tcp congestion control status duration... Hit Ctrl-C to end.
270
27107:40:12
272
273tcp_congest_state = cwr
274 usecs : count distribution
275 0 -> 1 : 0 | |
276 2 -> 3 : 0 | |
277 4 -> 7 : 11 | |
278 8 -> 15 : 10 | |
279 16 -> 31 : 25 | |
280 32 -> 63 : 58 | |
281 64 -> 127 : 117 | |
282 128 -> 255 : 2924 |******* |
283 256 -> 511 : 16249 |****************************************|
284 512 -> 1023 : 15340 |************************************* |
285 1024 -> 2047 : 786 |* |
286 2048 -> 4095 : 24 | |
287 4096 -> 8191 : 7 | |
288 8192 -> 16383 : 0 | |
289 16384 -> 32767 : 0 | |
290 32768 -> 65535 : 1 | |
291 65536 -> 131071 : 0 | |
292 131072 -> 262143 : 1 | |
293
294tcp_congest_state = recovery
295 usecs : count distribution
296 0 -> 1 : 0 | |
297 2 -> 3 : 0 | |
298 4 -> 7 : 1 | |
299 8 -> 15 : 0 | |
300 16 -> 31 : 2 | |
301 32 -> 63 : 9 | |
302 64 -> 127 : 28 | |
303 128 -> 255 : 895 |****************************** |
304 256 -> 511 : 1190 |****************************************|
305 512 -> 1023 : 384 |************ |
306 1024 -> 2047 : 66 |** |
307 2048 -> 4095 : 2 | |
308 4096 -> 8191 : 4 | |
309 8192 -> 16383 : 2 | |
310 16384 -> 32767 : 0 | |
311 32768 -> 65535 : 0 | |
312 65536 -> 131071 : 0 | |
313 131072 -> 262143 : 2 | |
314
315tcp_congest_state = disorder
316 usecs : count distribution
317 0 -> 1 : 0 | |
318 2 -> 3 : 0 | |
319 4 -> 7 : 21 |** |
320 8 -> 15 : 59 |***** |
321 16 -> 31 : 102 |********* |
322 32 -> 63 : 256 |************************* |
323 64 -> 127 : 409 |****************************************|
324 128 -> 255 : 255 |************************ |
325 256 -> 511 : 104 |********** |
326 512 -> 1023 : 8 | |
327
328tcp_congest_state = open
329 usecs : count distribution
330 0 -> 1 : 0 | |
331 2 -> 3 : 11 | |
332 4 -> 7 : 266 | |
333 8 -> 15 : 319 | |
334 16 -> 31 : 396 |* |
335 32 -> 63 : 488 |* |
336 64 -> 127 : 695 |** |
337 128 -> 255 : 4395 |************* |
338 256 -> 511 : 13329 |****************************************|
339 512 -> 1023 : 12727 |************************************** |
340 1024 -> 2047 : 3327 |********* |
341 2048 -> 4095 : 601 |* |
342 4096 -> 8191 : 45 | |
343 8192 -> 16383 : 3 | |
344 16384 -> 32767 : 1 | |
345 32768 -> 65535 : 1 | |
346
347tcp_congest_state = loss
348 usecs : count distribution
349 0 -> 1 : 0 | |
350 2 -> 3 : 0 | |
351 4 -> 7 : 0 | |
352 8 -> 15 : 0 | |
353 16 -> 31 : 0 | |
354 32 -> 63 : 0 | |
355 64 -> 127 : 0 | |
356 128 -> 255 : 1 |****************************************|
357 256 -> 511 : 1 |****************************************|
358 512 -> 1023 : 0 | |
359 1024 -> 2047 : 0 | |
360 2048 -> 4095 : 0 | |
361 4096 -> 8191 : 0 | |
362 8192 -> 16383 : 0 | |
363 16384 -> 32767 : 0 | |
364 32768 -> 65535 : 1 |****************************************|
365
36607:40:14
367
368tcp_congest_state = cwr
369 usecs : count distribution
370 0 -> 1 : 0 | |
371 2 -> 3 : 7 | |
372 4 -> 7 : 162 | |
373 8 -> 15 : 591 |* |
374 16 -> 31 : 462 | |
375 32 -> 63 : 351 | |
376 64 -> 127 : 441 | |
377 128 -> 255 : 4073 |******** |
378 256 -> 511 : 19188 |****************************************|
379 512 -> 1023 : 16127 |********************************* |
380 1024 -> 2047 : 725 |* |
381 2048 -> 4095 : 23 | |
382 4096 -> 8191 : 3 | |
383 8192 -> 16383 : 2 | |
384 16384 -> 32767 : 0 | |
385 32768 -> 65535 : 4 | |
386 65536 -> 131071 : 0 | |
387 131072 -> 262143 : 2 | |
388
389tcp_congest_state = recovery
390 usecs : count distribution
391 0 -> 1 : 0 | |
392 2 -> 3 : 0 | |
393 4 -> 7 : 3 | |
394 8 -> 15 : 16 | |
395 16 -> 31 : 22 | |
396 32 -> 63 : 37 |* |
397 64 -> 127 : 75 |** |
398 128 -> 255 : 1082 |******************************* |
399 256 -> 511 : 1364 |****************************************|
400 512 -> 1023 : 369 |********** |
401 1024 -> 2047 : 67 |* |
402 2048 -> 4095 : 0 | |
403 4096 -> 8191 : 2 | |
404 8192 -> 16383 : 0 | |
405 16384 -> 32767 : 0 | |
406 32768 -> 65535 : 0 | |
407 65536 -> 131071 : 0 | |
408 131072 -> 262143 : 5 | |
409
410tcp_congest_state = disorder
411 usecs : count distribution
412 0 -> 1 : 0 | |
413 2 -> 3 : 4 | |
414 4 -> 7 : 43 |**** |
415 8 -> 15 : 107 |*********** |
416 16 -> 31 : 145 |*************** |
417 32 -> 63 : 312 |********************************* |
418 64 -> 127 : 370 |****************************************|
419 128 -> 255 : 256 |*************************** |
420 256 -> 511 : 101 |********** |
421 512 -> 1023 : 8 | |
422
423tcp_congest_state = open
424 usecs : count distribution
425 0 -> 1 : 0 | |
426 2 -> 3 : 21 | |
427 4 -> 7 : 359 | |
428 8 -> 15 : 516 |* |
429 16 -> 31 : 484 |* |
430 32 -> 63 : 522 |* |
431 64 -> 127 : 818 |** |
432 128 -> 255 : 5081 |************* |
433 256 -> 511 : 14852 |****************************************|
434 512 -> 1023 : 13753 |************************************* |
435 1024 -> 2047 : 3224 |******** |
436 2048 -> 4095 : 598 |* |
437 4096 -> 8191 : 41 | |
438 8192 -> 16383 : 0 | |
439 16384 -> 32767 : 1 | |
440 32768 -> 65535 : 0 | |
441 65536 -> 131071 : 0 | |
442 131072 -> 262143 : 1 | |
443
444tcp_congest_state = loss
445 usecs : count distribution
446 0 -> 1 : 0 | |
447 2 -> 3 : 0 | |
448 4 -> 7 : 0 | |
449 8 -> 15 : 0 | |
450 16 -> 31 : 0 | |
451 32 -> 63 : 0 | |
452 64 -> 127 : 1 |****** |
453 128 -> 255 : 0 | |
454 256 -> 511 : 2 |************* |
455 512 -> 1023 : 6 |****************************************|
456 1024 -> 2047 : 0 | |
457 2048 -> 4095 : 0 | |
458 4096 -> 8191 : 0 | |
459 8192 -> 16383 : 0 | |
460 16384 -> 32767 : 0 | |
461 32768 -> 65535 : 1 |****** |
462
463
464USAGE:
465./tcpcong -h
466usage: tcpcong [-h] [-L LOCALPORT] [-R REMOTEPORT] [-T] [-d] [-u]
467 [interval] [outputs]
468
469Summarize tcp socket congestion control status duration
470
471positional arguments:
472 interval output interval, in seconds
473 outputs number of outputs
474
475optional arguments:
476 -h, --help show this help message and exit
477 -L LOCALPORT, --localport LOCALPORT
478 trace local ports only
479 -R REMOTEPORT, --remoteport REMOTEPORT
480 trace the dest ports only
481 -T, --timestamp include timestamp on output
482 -d, --dist show distributions as histograms
483 -u, --microseconds output in microseconds
484
485examples:
486 ./tcpcong # show tcp congestion status duration
487 ./tcpcong 1 10 # show 1 second summaries, 10 times
488 ./tcpcong -L 3000-3006 1 # 1s summaries, local port 3000-3006
489 ./tcpcong -R 5000-5005 1 # 1s summaries, remote port 5000-5005
490 ./tcpcong -uT 1 # 1s summaries, microseconds, and timestamps
491 ./tcpcong -d # show the duration as histograms