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2026-05-23 - 14:27

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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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  Intel
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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack5slot4s.osadl.org (updated Sat May 23, 2026 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
577994997062,6cyclictest718632-21kworker/u8:0+flush-8:009:36:011
577994996760,5cyclictest3930284-21kworker/u8:0+events_unbound07:26:031
577994996558,6cyclictest664021-21kworker/u8:3+flush-8:009:41:031
577994996257,4cyclictest644263-21kworker/u8:1+events_unbound08:45:011
577994996156,4cyclictest664021-21kworker/u8:3+flush-8:009:25:581
577992996154,5cyclictest3930284-21kworker/u8:0+events_unbound07:41:130
577994996054,5cyclictest653350-21kworker/u8:0+flush-8:008:31:031
577994996054,4cyclictest853326-21kworker/u8:0+events_unbound12:01:021
577994995952,5cyclictest629690-21kworker/u8:2+flush-8:009:20:581
577994995951,6cyclictest718632-21kworker/u8:0+flush-8:010:05:581
577994995850,6cyclictest588886-21ntpq07:15:561
577994995848,8cyclictest762899-21ntpq10:10:581
577994995752,3cyclictest684301-21kworker/u8:0+flush-8:009:06:021
577994995751,4cyclictest589488-21kworker/u8:3+events_unbound08:11:021
577994995748,7cyclictest678251-21ntpq08:45:571
577992995752,4cyclictest578107-21kworker/u8:2+flush-8:007:21:040
8213872560,8sleep375-21kworker/3:1+mm_percpu_wq11:10:543
577994995651,4cyclictest664021-21kworker/u8:3+events_unbound10:41:051
577994995647,7cyclictest902154-21ntpq12:30:561
577994995548,5cyclictest664021-21kworker/u8:3+flush-8:010:46:001
577994995546,7cyclictest822606-21ntpq11:10:581
577992995544,8cyclictest788526-21latency_hist10:40:010
577994995449,4cyclictest798691-21kworker/u8:0+events_unbound10:55:581
577994995449,4cyclictest754119-21kworker/u8:2+events_unbound11:00:461
577994995447,5cyclictest754119-21kworker/u8:2+flush-8:011:26:021
577994995445,6cyclictest723086-21ntpq09:31:001
577994995347,4cyclictest624480-21kworker/u8:1+flush-8:007:56:021
577992995348,3cyclictest763770-21kworker/u8:1+flush-8:010:51:050
577994995247,3cyclictest833354-21kworker/u8:3+flush-8:012:15:491
577994995246,4cyclictest664021-21kworker/u8:3+events_unbound09:10:451
577994995245,5cyclictest629690-21kworker/u8:2+flush-8:008:20:591
577994995245,5cyclictest629690-21kworker/u8:2+flush-8:008:20:591
577994995244,6cyclictest644263-21kworker/u8:1+flush-8:008:50:571
577992995247,4cyclictest754119-21kworker/u8:2+events_unbound11:00:510
577994995147,3cyclictest842945-21kworker/u8:1+events_unbound11:56:001
577994995145,4cyclictest578107-21kworker/u8:2+flush-8:007:35:571
577992995147,3cyclictest664021-21kworker/u8:3+events_unbound10:40:470
577992995147,3cyclictest578107-21kworker/u8:2+events_unbound07:15:050
577992995145,4cyclictest853326-21kworker/u8:0+flush-8:012:15:440
577992995145,4cyclictest3930284-21kworker/u8:0+flush-8:007:45:580
577998995044,4cyclictest664021-21kworker/u8:3+events_unbound09:45:502
577994995045,4cyclictest833354-21kworker/u8:3+events_unbound11:35:561
577994995044,5cyclictest3930284-21kworker/u8:0+flush-8:008:05:581
577994995039,8cyclictest892890-21apt-get12:25:011
577994995039,4cyclictest664021-21kworker/u8:3+events_unbound08:36:021
577992995042,6cyclictest3930284-21kworker/u8:0+flush-8:007:25:570
577994994944,4cyclictest763770-21kworker/u8:1+events_unbound10:26:021
577994994944,4cyclictest754119-21kworker/u8:2+events_unbound11:35:011
577994994943,5cyclictest853326-21kworker/u8:0+flush-8:011:50:591
577994994943,5cyclictest754119-21kworker/u8:2+flush-8:010:35:591
577994994943,4cyclictest3930284-21kworker/u8:0+flush-8:007:10:571
577994994942,5cyclictest629690-21kworker/u8:2+events_unbound09:15:491
577992994943,4cyclictest664021-21kworker/u8:3+events_unbound10:00:590
577998994843,3cyclictest763770-21kworker/u8:1+events_unbound10:20:542
577998994838,7cyclictest1704890-21systemd-journal09:59:392
577994994842,5cyclictest754119-21kworker/u8:2+flush-8:011:41:021
577994994842,5cyclictest664021-21kworker/u8:3+flush-8:010:01:001
577994994841,5cyclictest898328-21kworker/u8:1+flush-8:012:35:571
577994994742,4cyclictest578107-21kworker/u8:2+flush-8:007:20:591
577994994742,4cyclictest3930284-21kworker/u8:0+events_unbound07:46:021
577994994737,8cyclictest832474-21ntpq11:20:581
577994994737,8cyclictest832474-21ntpq11:20:581
577992994741,4cyclictest833354-21kworker/u8:3+events_unbound11:36:010
577992994741,4cyclictest763770-21kworker/u8:1+flush-8:010:20:490
577992994738,7cyclictest817660-21ntpq11:05:570
577992994737,7cyclictest763754-21latency_hist10:15:010
577994994641,4cyclictest763770-21kworker/u8:1+events_unbound10:50:591
577994994641,4cyclictest754119-21kworker/u8:2+flush-8:010:15:591
577994994641,4cyclictest653350-21kworker/u8:0+flush-8:008:26:011
577994994641,4cyclictest653350-21kworker/u8:0+flush-8:008:26:001
577994994639,5cyclictest833354-21kworker/u8:3+flush-8:012:25:481
577994994638,6cyclictest857219-21ntpq11:45:571
577994994638,5cyclictest1704890-21systemd-journal07:53:381
577994994635,8cyclictest772909-21ntpq10:21:021
577992994641,3cyclictest624480-21kworker/u8:1+events_unbound07:55:470
577994994540,4cyclictest718632-21kworker/u8:0+events_unbound09:55:571
577994994540,3cyclictest827558-21ntpq11:16:121
577994994535,8cyclictest648293-21ntpq08:15:571
577992994540,4cyclictest664021-21kworker/u8:3+flush-8:009:30:590
577992994539,4cyclictest589488-21kworker/u8:3+flush-8:008:11:030
577992994538,5cyclictest664021-21kworker/u8:3+events_unbound10:46:000
577992994536,6cyclictest768696-21latency_hist10:20:010
577992994535,8cyclictest743133-21ntpq09:50:590
577994994439,4cyclictest3930284-21kworker/u8:0+events_unbound07:30:481
577998994334,7cyclictest1704890-21systemd-journal08:20:382
577998994334,7cyclictest1704890-21systemd-journal08:20:382
577992994338,3cyclictest754119-21kworker/u8:2+flush-8:011:10:570
577992994336,5cyclictest853326-21kworker/u8:0+flush-8:012:05:590
577992994333,8cyclictest738772-21apt-get09:50:000
577994994236,4cyclictest684301-21kworker/u8:0+flush-8:008:55:511
577992994237,4cyclictest754119-21kworker/u8:2+events_unbound11:29:590
577992994234,6cyclictest853326-21kworker/u8:0+flush-8:012:20:580
577994994136,3cyclictest754119-21kworker/u8:2+events_unbound11:05:521
577994994136,3cyclictest629690-21kworker/u8:2+events_unbound08:00:531
577994994135,5cyclictest664021-21kworker/u8:3+flush-8:010:30:521
577994994131,8cyclictest878318-21/usr/sbin/munin12:10:591
577992994137,3cyclictest853326-21kworker/u8:0+events_unbound12:11:010
577992994135,4cyclictest629690-21kworker/u8:2+flush-8:009:15:580
577992994135,4cyclictest629690-21kworker/u8:2+flush-8:008:00:580
577998994035,4cyclictest853326-21kworker/u8:0+flush-8:012:11:032
577994994033,5cyclictest3930284-21kworker/u8:0+flush-8:007:41:131
577998993928,9cyclictest1704890-21systemd-journal07:20:002
577994993933,4cyclictest684301-21kworker/u8:0+events_unbound09:00:481
577992993934,3cyclictest754119-21kworker/u8:2+flush-8:011:20:530
577992993934,3cyclictest754119-21kworker/u8:2+flush-8:011:20:530
577992993934,3cyclictest653350-21kworker/u8:0+flush-8:008:25:490
577992993934,3cyclictest653350-21kworker/u8:0+flush-8:008:25:480
57799299391,36cyclictest843248-21munin-run11:35:010
577992993832,4cyclictest853326-21kworker/u8:0+events_unbound12:00:570
577992993831,5cyclictest629690-21kworker/u8:2+events_unbound09:25:020
577992993828,7cyclictest748937-21latency_hist09:59:590
577992993827,8cyclictest862068-21ntpq11:50:550
577998993731,4cyclictest754119-21kworker/u8:2+events_unbound11:30:502
577994993729,7cyclictest738446-21kworker/u8:1+flush-8:009:50:441
577992993733,3cyclictest684301-21kworker/u8:0+events_unbound09:01:070
577992993724,11cyclictest649880-21fschecks_time08:20:490
577992993724,11cyclictest649880-21fschecks_time08:20:490
577998993631,4cyclictest629690-21kworker/u8:2+flush-8:009:01:272
577992993630,4cyclictest898328-21kworker/u8:1+events_unbound12:36:000
577992993630,4cyclictest664021-21kworker/u8:3+flush-8:009:40:530
577992993629,6cyclictest754119-21kworker/u8:2+flush-8:011:16:110
577992993629,5cyclictest3930284-21kworker/u8:0+events_unbound08:06:010
577998993530,4cyclictest853326-21kworker/u8:0+flush-8:012:25:582
577994993530,3cyclictest873721-21cut12:05:481
577992993531,3cyclictest853326-21kworker/u8:0+events_unbound11:45:460
577992993531,3cyclictest3930284-21kworker/u8:0+events_unbound07:38:390
577992993530,4cyclictest763770-21kworker/u8:1+flush-8:010:25:520
577992993530,3cyclictest624485-21systemd-run07:55:000
577992993529,4cyclictest684301-21kworker/u8:0+flush-8:009:05:570
577992993529,4cyclictest629690-21kworker/u8:2+events_unbound08:55:460
5776972354,9sleep10-21swapper/107:08:411
577992993430,3cyclictest833354-21kworker/u8:3+flush-8:011:41:370
577992993430,3cyclictest833354-21kworker/u8:3+events_unbound12:30:490
577992993428,4cyclictest664021-21kworker/u8:3+events_unbound08:35:450
577998993326,5cyclictest718632-21kworker/u8:0+flush-8:010:05:432
577992993329,3cyclictest754119-21kworker/u8:2+flush-8:010:30:550
577992993329,3cyclictest525236-21kworker/u8:1+events_unbound07:10:450
577992993328,3cyclictest718632-21kworker/u8:0+events_unbound10:06:030
577998993227,3cyclictest853326-21kworker/u8:0+events_unbound11:45:582
577998993227,3cyclictest589488-21kworker/u8:3+events_unbound08:15:532
577998993226,4cyclictest837963-21grep11:26:042
577992993228,3cyclictest853326-21kworker/u8:0+events_unbound12:25:050
577992993228,3cyclictest842945-21kworker/u8:1+flush-8:011:56:370
577998993127,2cyclictest808993-21aten2_r5power_e11:00:462
577998993126,4cyclictest664021-21kworker/u8:3+events_unbound09:51:012
577994993127,2cyclictest0-21swapper/109:50:011
577992993125,5cyclictest644662-21aten2_r5power_v08:15:470
577992993124,5cyclictest713783-21apt-get09:25:000
577992993123,6cyclictest1704890-21systemd-journal08:35:000
577998993026,2cyclictest843746-21cpuspeed_turbos11:35:472
577998993025,4cyclictest664021-21kworker/u8:3+flush-8:009:10:582
577998993022,3cyclictest898711-21kworker/u8:4+events_unbound12:30:592
577992993025,4cyclictest754119-21kworker/u8:2+flush-8:010:55:040
577992993025,4cyclictest664021-21kworker/u8:3+events_unbound09:11:010
577992993025,4cyclictest3930284-21kworker/u8:0+flush-8:007:30:550
577992993025,3cyclictest669711-21aten2_r5power_v08:40:480
577998992926,2cyclictest578218-21aten2_r5power_c07:10:452
577998992925,2cyclictest759471-21fschecks_time10:10:482
577998992923,4cyclictest679731-21fschecks_count08:50:482
577998992920,7cyclictest873758-21fschecks_time12:05:482
577992992925,3cyclictest644263-21kworker/u8:1+flush-8:008:50:300
57799299292,26cyclictest708863-21kworker/0:0+events09:35:530
5731662294,9sleep20-21swapper/207:05:242
577998992823,4cyclictest754119-21kworker/u8:2+flush-8:011:16:042
577998992823,3cyclictest754119-21kworker/u8:2+events_unbound11:20:462
577998992823,3cyclictest754119-21kworker/u8:2+events_unbound11:20:452
577998992820,6cyclictest789169-21fschecks_time10:40:522
577998992819,7cyclictest863601-21fschecks_time11:55:482
577992992821,5cyclictest674589-21aten2_r5power_e08:45:460
577998992723,3cyclictest634789-21aten2_r5power_p08:05:462
577998992723,2cyclictest0-21swapper/209:10:002
577998992722,4cyclictest684301-21kworker/u8:0+flush-8:008:55:562
577998992721,4cyclictest629992-21cpuspeed_turbos08:00:472
577998992621,3cyclictest819077-21cpuspeed_turbos11:10:462
577998992621,3cyclictest729222-21aten2_r5power_c09:40:472
577998992621,3cyclictest0-21swapper/207:40:002
577998992619,5cyclictest626948-21kthreadcore07:55:532
577998992619,5cyclictest3930284-21kworker/u8:0+flush-8:008:10:052
577998992521,3cyclictest868579-21fschecks_time12:00:492
577998992519,4cyclictest600020-21apt-get07:30:442
577998992518,5cyclictest658715-21unixbench_multi08:26:022
577998992518,5cyclictest658715-21unixbench_multi08:26:012
57799899242,2cyclictest0-21swapper/207:53:532
577998992421,2cyclictest883357-21aten2_r5power_e12:15:442
577998992421,2cyclictest808214-21unixbench_multi10:56:042
577998992420,3cyclictest0-21swapper/209:40:002
577998992418,4cyclictest754119-21kworker/u8:2+flush-8:010:50:262
5735982242,5sleep0573197-21/usr/sbin/munin07:05:510
577998992218,2cyclictest798103-21unixbench_singl10:46:052
577998992215,5cyclictest664211-21apt-key08:35:002
577998992212,7cyclictest752036-21tr10:00:542
57799899212,2cyclictest0-21swapper/210:35:562
577998992118,2cyclictest774054-21aten2_r5power_e10:25:482
577998992117,2cyclictest893179-21cat12:25:002
577998992113,6cyclictest615597-21sed07:45:522
577998992112,7cyclictest764717-21sed10:15:512
577998992112,7cyclictest709915-21sed09:20:512
577998992112,7cyclictest665385-21cut08:35:522
577998992016,2cyclictest779151-21cpuspeed_turbos10:30:472
577998992016,2cyclictest704269-21aten2_r5power_e09:15:472
577998992012,6cyclictest0-21swapper/207:41:072
57799899200,5cyclictest671484-21cut08:40:542
57799899192,8cyclictest0-21swapper/207:20:512
57799899192,7cyclictest0-21swapper/209:28:112
577998991915,2cyclictest0-21swapper/212:35:562
577998991911,6cyclictest722472-21cut09:30:552
577998991910,7cyclictest861289-21cut11:50:532
5776922192,9sleep30-21swapper/307:08:393
577998991814,2cyclictest848699-21cpuspeed_turbos11:40:472
577998991811,5cyclictest675072-21sed08:45:512
577998991810,6cyclictest596507-21cut07:25:532
6000222172,9sleep30-21swapper/307:30:463
577998991710,5cyclictest0-21swapper/211:05:532
6951112144,6sleep30-21swapper/309:05:523
6148072143,7sleep30-21swapper/307:45:023
8043172131,8sleep30-21swapper/310:55:503
7793042133,7sleep30-21swapper/310:30:503
7744802133,6sleep30-21swapper/310:25:533
6890752132,6sleep30-21swapper/309:00:013
6399632132,7sleep30-21swapper/308:10:503
5955862133,7sleep30-21swapper/307:25:523
9030922122,5sleep30-21swapper/312:35:023
8934432122,6sleep30-21swapper/312:25:473
8927682122,6sleep30-21swapper/312:23:373
8780642122,6sleep30-21swapper/312:10:023
8733292122,6sleep30-21swapper/312:05:033
8586172122,6sleep30-21swapper/311:50:473
8531122122,6sleep30-21swapper/311:45:023
8521452122,6sleep30-21swapper/311:40:573
8291552122,6sleep30-21swapper/311:20:503
8291552122,6sleep30-21swapper/311:20:503
8135802122,5sleep30-21swapper/311:05:003
8094572122,6sleep30-21swapper/311:00:523
7885142122,5sleep30-21swapper/310:40:013
7839082122,6sleep30-21swapper/310:35:473
7694062122,6sleep30-21swapper/310:20:513
7679082122,6sleep30-21swapper/310:16:023
7600032122,7sleep30-21swapper/310:10:523
7480642123,5sleep30-21swapper/309:55:593
7350092122,6sleep30-21swapper/309:45:513
7338042120,8sleep30-21swapper/309:45:003
7286662122,6sleep30-21swapper/309:37:383
7238922122,5sleep30-21swapper/309:35:003
7100322122,6sleep30-21swapper/309:20:523
7041302122,5sleep30-21swapper/309:15:023
7031452122,6sleep30-21swapper/309:11:013
6843282122,6sleep30-21swapper/308:55:283
6790162122,6sleep30-21swapper/308:48:373
6699752122,6sleep30-21swapper/308:40:523
6645982122,6sleep30-21swapper/308:35:463
6593972122,6sleep30-21swapper/308:30:453
6586892122,6sleep30-21swapper/308:26:033
6586892122,6sleep30-21swapper/308:26:023
6463742122,6sleep30-21swapper/308:15:563
6382952123,5sleep30-21swapper/308:05:563
6322562122,6sleep30-21swapper/308:00:553
6244762122,5sleep30-21swapper/307:55:013
5899212122,6sleep30-21swapper/307:20:023
5786822122,6sleep30-21swapper/307:10:513
8982982112,6sleep30-21swapper/312:30:163
8833012112,6sleep30-21swapper/312:15:443
8681822112,5sleep30-21swapper/312:00:033
8636572112,5sleep30-21swapper/311:55:493
8435432112,5sleep30-21swapper/311:35:473
8383332112,5sleep30-21swapper/311:30:013
8372712111,6sleep30-21swapper/311:25:563
8033332112,6sleep30-21swapper/310:54:213
7937822112,5sleep30-21swapper/310:45:433
7541272112,5sleep30-21swapper/310:05:393
7497842112,5sleep30-21swapper/310:00:533
7393172112,6sleep30-21swapper/309:50:463
7138962110,6sleep30-21swapper/309:25:023
6795012112,5sleep30-21swapper/308:50:473
6492492112,5sleep30-21swapper/308:20:013
6492492112,5sleep30-21swapper/308:20:003
6197502112,6sleep30-21swapper/307:50:033
6099412112,5sleep30-21swapper/307:41:013
6049052112,5sleep30-21swapper/307:35:423
5897452112,6sleep30-21swapper/307:19:303
8236832102,5sleep30-21swapper/311:15:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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