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2026-06-02 - 23:37

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 Tue Jun 02, 2026 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12924582372332,13sleep70-21swapper/719:05:1013
12958102370364,4sleep110-21swapper/1119:08:273
12947062364356,5sleep40-21swapper/419:05:2410
12957712358318,14sleep150-21swapper/1519:07:597
12957422357340,11sleep30-21swapper/319:07:319
12958412354334,13sleep80-21swapper/819:08:5614
12959042352332,13sleep90-21swapper/919:09:4515
12957882352332,14sleep140-21swapper/1419:08:146
12959192350331,12sleep50-21swapper/519:09:5711
12958072349310,13sleep100-21swapper/1019:08:262
12957522349330,12sleep130-21swapper/1319:07:405
12956252349330,13sleep120-21swapper/1219:06:034
12958712348329,12sleep10-21swapper/119:09:221
12957762345324,14sleep20-21swapper/219:08:028
12958162344324,13sleep00-21swapper/019:08:330
12959202342322,13sleep60-21swapper/619:09:5812
15698202570,0sleep60-21swapper/623:22:1912
1296348994913,11cyclictest0-21swapper/1422:39:396
1296348994913,11cyclictest0-21swapper/1422:06:436
1296348994913,10cyclictest0-21swapper/1421:22:466
1296348994912,36cyclictest0-21swapper/1419:10:586
1296348994813,10cyclictest0-21swapper/1400:18:316
1296348994712,11cyclictest0-21swapper/1419:54:546
1296348994712,10cyclictest0-21swapper/1422:50:386
1296348994510,10cyclictest0-21swapper/1420:05:536
1296348994420,24cyclictest1627876-21ssh00:07:316
129634899424,25cyclictest0-21swapper/1422:17:416
1296312994136,3cyclictest1550183-21kworker/u32:1+events_unbound23:15:098
1296319994040,0cyclictest0-21swapper/422:36:4110
1296330993935,4cyclictest97-21ksoftirqd/822:36:4114
1296348993813,25cyclictest0-21swapper/1423:45:336
1296348993812,25cyclictest0-21swapper/1400:29:296
1296348993712,25cyclictest0-21swapper/1423:56:326
1296348993712,25cyclictest0-21swapper/1423:12:366
1296348993712,25cyclictest0-21swapper/1422:28:406
1296348993712,25cyclictest0-21swapper/1421:33:456
1296348993712,25cyclictest0-21swapper/1421:33:456
1296348993712,25cyclictest0-21swapper/1421:11:486
1296348993712,25cyclictest0-21swapper/1421:00:486
1296348993712,25cyclictest0-21swapper/1420:49:506
1296348993712,25cyclictest0-21swapper/1419:43:556
1296348993712,25cyclictest0-21swapper/1419:32:566
1296330993635,1cyclictest1355284-21kworker/u32:3+events_unbound21:00:1714
1296319993636,0cyclictest0-21swapper/421:40:0610
129631299361,31cyclictest1491897-21kworker/u32:0+events_unbound23:39:208
1296348993510,25cyclictest0-21swapper/1423:23:356
1296330993534,1cyclictest1537677-21kworker/8:1-events23:37:2914
1296315993526,6cyclictest1774-21snmpd22:38:549
1296336993429,5cyclictest1312002-21mii-tool19:25:152
1296330993434,0cyclictest0-21swapper/800:14:2214
129634199330,30cyclictest0-21swapper/1222:50:164
1296319993329,4cyclictest0-21swapper/421:55:0610
129631299334,28cyclictest1483999-21kworker/u32:3+flush-259:022:38:508
129631299330,32cyclictest782-21systemd-journal19:22:478
129631299330,30cyclictest1607787-21ssh23:51:038
129631299330,30cyclictest1531219-21ssh22:52:158
129631299330,30cyclictest0-21swapper/220:55:178
129634699320,32cyclictest0-21swapper/1300:10:175
1296330993231,1cyclictest1407992-21kworker/u32:4+events_unbound22:10:1714
1296330993231,1cyclictest1330234-21kworker/u32:2+events_unbound20:35:1814
129632199320,30cyclictest0-21swapper/521:45:5711
1296319993232,0cyclictest0-21swapper/423:48:5910
1296315993230,2cyclictest0-21swapper/321:33:519
1296315993230,2cyclictest0-21swapper/321:33:519
1296315993229,3cyclictest1774-21snmpd21:55:509
1296312993228,3cyclictest1355284-21kworker/u32:3+flush-259:021:29:098
129631299320,30cyclictest1448426-21ssh21:48:528
129631299320,29cyclictest1472657-21ssh22:06:018
129631299320,29cyclictest0-21swapper/223:56:498
129631299320,29cyclictest0-21swapper/223:45:548
129631299320,29cyclictest0-21swapper/223:43:238
129631299320,29cyclictest0-21swapper/223:26:598
129631299320,29cyclictest0-21swapper/223:22:538
129631299320,29cyclictest0-21swapper/222:56:078
129631299320,29cyclictest0-21swapper/222:45:258
129631299320,29cyclictest0-21swapper/222:32:328
129631299320,29cyclictest0-21swapper/222:27:028
129631299320,29cyclictest0-21swapper/222:21:208
129631299320,29cyclictest0-21swapper/221:33:158
129631299320,29cyclictest0-21swapper/221:33:158
129631299320,29cyclictest0-21swapper/221:15:298
129631299320,29cyclictest0-21swapper/221:02:058
129631299320,29cyclictest0-21swapper/219:56:218
129631299320,29cyclictest0-21swapper/219:11:238
129631299320,29cyclictest0-21swapper/200:29:328
129635199310,30cyclictest0-21swapper/1522:12:537
129635199310,30cyclictest0-21swapper/1522:00:137
129635199310,30cyclictest0-21swapper/1500:31:067
129635199310,30cyclictest0-21swapper/1500:31:057
1296348993130,1cyclictest1774-21snmpd23:51:406
129634899310,30cyclictest0-21swapper/1423:31:486
129634899310,30cyclictest0-21swapper/1422:56:386
129634899310,30cyclictest0-21swapper/1419:17:176
129634899310,30cyclictest0-21swapper/1400:31:036
129634899310,30cyclictest0-21swapper/1400:31:026
129634099310,30cyclictest0-21swapper/1122:11:583
129634099310,30cyclictest0-21swapper/1119:24:263
1296336993130,1cyclictest1774-21snmpd22:50:062
1296336993129,1cyclictest1494043-21kworker/10:2+events23:06:432
1296336993129,1cyclictest1345709-21kworker/10:1+events21:08:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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