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2026-05-30 - 19:38

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot4s.osadl.org (updated Sat May 30, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8543102396377,12sleep120-21swapper/1219:06:094
8534532378360,11sleep150-21swapper/1519:05:257
8544652364325,13sleep100-21swapper/1019:08:162
8545752362324,30sleep60-21swapper/619:09:4812
8543832360319,13sleep80-21swapper/819:07:1014
8544582358352,4sleep30-21swapper/319:08:099
8543892352331,14sleep140-21swapper/1419:07:156
8545572350329,14sleep50-21swapper/519:09:3111
8545282348328,13sleep130-21swapper/1319:09:075
8544812348327,14sleep70-21swapper/719:08:2913
8544922347326,14sleep10-21swapper/119:08:401
8543542346325,14sleep20-21swapper/219:06:488
8542982345336,6sleep00-21swapper/019:05:570
8543562344323,14sleep40-21swapper/419:06:4910
8544472342322,13sleep90-21swapper/919:08:0015
8542652341320,14sleep110-21swapper/1119:05:363
10316312560,0sleep131031632-21sh22:06:265
10316312560,0sleep131031632-21sh22:06:255
854966994242,0cyclictest0-21swapper/1523:26:327
85496699389,29cyclictest0-21swapper/1521:55:187
854966993434,0cyclictest559504-21kworker/15:1-events19:22:357
854960993328,3cyclictest1774-21snmpd22:40:495
854955993229,3cyclictest1774-21snmpd19:19:263
85495599320,31cyclictest0-21swapper/1119:56:333
854942993229,3cyclictest1774-21snmpd19:15:2414
854920993228,4cyclictest874867-21mii-tool19:30:131
85496699311,30cyclictest1591ktimers/1520:57:297
85496399310,30cyclictest0-21swapper/1419:28:476
85496099310,30cyclictest0-21swapper/1323:55:145
854955993130,1cyclictest937564-21ethtool20:45:163
85494299310,30cyclictest0-21swapper/820:55:1414
854937993127,4cyclictest1774-21snmpd23:33:5613
85493799310,31cyclictest0-21swapper/723:35:1513
854932993127,4cyclictest1774-21snmpd20:20:1011
854932993125,6cyclictest0-21swapper/500:25:1711
85493299310,30cyclictest0-21swapper/500:30:4711
85493299310,1cyclictest0-21swapper/520:11:2411
85493099310,30cyclictest0-21swapper/422:53:5510
854926993129,2cyclictest1082839-21ssh22:45:539
85492499310,30cyclictest0-21swapper/222:02:558
85492499310,30cyclictest0-21swapper/222:02:548
854917993130,1cyclictest1774-21snmpd20:57:560
85491799310,28cyclictest0-21swapper/022:50:140
854966993029,1cyclictest1774-21snmpd23:34:027
85496399306,14cyclictest0-21swapper/1421:48:186
85496399306,13cyclictest0-21swapper/1423:38:086
85496399306,13cyclictest0-21swapper/1400:33:016
854963993029,1cyclictest1774-21snmpd23:11:476
854963993029,1cyclictest1774-21snmpd23:07:256
854963993029,1cyclictest1774-21snmpd21:08:146
854963993029,1cyclictest1774-21snmpd21:02:276
854963993029,1cyclictest1774-21snmpd20:26:046
854963993025,3cyclictest0-21swapper/1421:40:146
85496399300,30cyclictest0-21swapper/1422:25:466
85496399300,29cyclictest0-21swapper/1400:02:246
854960993029,1cyclictest1774-21snmpd23:33:445
854960993029,1cyclictest1774-21snmpd23:22:095
854960993029,1cyclictest1774-21snmpd20:14:065
854960993029,1cyclictest1774-21snmpd00:07:485
854960993026,4cyclictest1774-21snmpd23:15:185
854957993029,1cyclictest0-21swapper/1221:49:244
85495799300,29cyclictest0-21swapper/1223:45:134
854955993029,1cyclictest1774-21snmpd22:28:503
854951993030,0cyclictest1049186-21kworker/10:1+events23:15:092
854951993029,1cyclictest959215-21kworker/10:2+events21:39:312
854951993029,1cyclictest959215-21kworker/10:2+events21:24:482
854951993029,1cyclictest781941-21kworker/10:1+events21:16:052
854951993029,1cyclictest1774-21snmpd21:28:532
854951993029,1cyclictest1156234-21kworker/10:2+events23:56:212
854951993029,1cyclictest1156234-21kworker/10:2+events00:15:242
854951993029,1cyclictest1156234-21kworker/10:2+events00:14:412
854951993029,1cyclictest1049186-21kworker/10:1+events23:10:362
854951993029,1cyclictest1049186-21kworker/10:1+events22:46:372
854951993029,1cyclictest1049186-21kworker/10:1+events22:31:392
854951993029,1cyclictest1004791-21kworker/10:0+events22:00:012
854951993029,1cyclictest1004791-21kworker/10:0+events22:00:012
85495199300,30cyclictest0-21swapper/1021:44:312
854947993029,1cyclictest1774-21snmpd21:50:4815
854947993029,1cyclictest1774-21snmpd19:15:5415
85494799300,30cyclictest0-21swapper/921:17:3515
85494799300,30cyclictest0-21swapper/900:18:4015
85494799300,1cyclictest0-21swapper/922:38:4315
854942993026,4cyclictest0-21swapper/822:04:2814
854942993026,4cyclictest0-21swapper/822:04:2714
854937993028,1cyclictest0-21swapper/720:58:1113
85493799300,29cyclictest0-21swapper/722:35:0713
85493799300,1cyclictest0-21swapper/722:14:3713
854935993029,1cyclictest1774-21snmpd21:19:3012
854935993028,1cyclictest1147115-21kworker/u32:1+flush-259:000:15:1512
85493599300,29cyclictest0-21swapper/620:23:2512
85493599300,1cyclictest0-21swapper/600:12:4912
854932993029,1cyclictest997370-21mii-tool21:40:1411
85493299300,30cyclictest0-21swapper/523:30:1411
854930993029,1cyclictest1774-21snmpd19:58:5810
854930993029,1cyclictest0-21swapper/419:34:2010
85493099300,30cyclictest0-21swapper/421:48:1210
85493099300,30cyclictest0-21swapper/421:38:2910
854924993029,1cyclictest1774-21snmpd22:23:278
854924993029,1cyclictest0-21swapper/220:49:048
85492499300,30cyclictest0-21swapper/221:48:378
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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