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2026-05-05 - 12:53

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 May 05, 2026 00:46:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20066232390352,13sleep50-21swapper/519:07:1111
20065522360319,33sleep150-21swapper/1519:06:177
20066222357337,13sleep40-21swapper/419:07:1010
20066072356336,13sleep90-21swapper/919:06:5915
20066732354334,13sleep100-21swapper/1019:07:482
20065932353333,13sleep140-21swapper/1419:06:486
20064892353333,13sleep60-21swapper/619:05:3612
20066702352332,13sleep70-21swapper/719:07:4513
20065242352333,12sleep80-21swapper/819:05:5514
20067622351331,13sleep20-21swapper/219:09:028
20065492351332,12sleep120-21swapper/1219:06:144
20067742350329,13sleep130-21swapper/1319:09:125
20066832348329,13sleep30-21swapper/319:07:579
20066812348328,13sleep10-21swapper/119:07:551
20066802347327,13sleep00-21swapper/019:07:540
20065902345325,13sleep110-21swapper/1119:06:453
2007341993535,0cyclictest0-21swapper/823:37:3014
2007330993333,0cyclictest0-21swapper/421:52:3810
200734699320,29cyclictest0-21swapper/923:35:1515
2007330993232,0cyclictest0-21swapper/422:41:5110
2007330993231,1cyclictest0-21swapper/400:03:0510
200736299310,30cyclictest0-21swapper/1521:17:247
200736099310,30cyclictest0-21swapper/1420:00:376
200736099310,30cyclictest0-21swapper/1420:00:376
200736099310,1cyclictest0-21swapper/1423:48:426
200735199310,28cyclictest0-21swapper/1100:20:113
2007348993130,1cyclictest1774-21snmpd22:17:462
200734899310,30cyclictest0-21swapper/1020:39:052
200734699310,30cyclictest0-21swapper/919:27:1215
200733899310,30cyclictest0-21swapper/723:44:3713
200733899310,30cyclictest0-21swapper/722:37:0313
200733899310,30cyclictest0-21swapper/700:13:1313
200733699310,30cyclictest0-21swapper/619:25:1512
2007330993130,1cyclictest1774-21snmpd23:42:5110
200732699310,30cyclictest0-21swapper/323:15:549
200732399310,30cyclictest0-21swapper/222:18:168
200731799310,30cyclictest0-21swapper/023:20:140
2007362993026,2cyclictest0-21swapper/1521:25:147
200736299300,30cyclictest0-21swapper/1523:17:397
200736099306,13cyclictest0-21swapper/1421:44:526
2007360993029,1cyclictest1774-21snmpd21:21:546
2007360993029,1cyclictest1774-21snmpd19:32:246
2007360993027,3cyclictest1774-21snmpd22:43:476
200736099300,30cyclictest0-21swapper/1420:27:326
2007357993029,1cyclictest1774-21snmpd23:10:455
2007357993029,1cyclictest1774-21snmpd23:10:455
2007357993029,1cyclictest1774-21snmpd22:46:235
200735799300,30cyclictest0-21swapper/1321:54:465
200735799300,30cyclictest0-21swapper/1319:29:125
2007353993029,1cyclictest0-21swapper/1223:01:474
2007353993028,1cyclictest0-21swapper/1221:55:044
2007351993029,1cyclictest1774-21snmpd22:32:353
2007351993029,1cyclictest1774-21snmpd19:53:353
200735199300,29cyclictest0-21swapper/1123:42:213
200734899300,30cyclictest0-21swapper/1020:56:482
200734899300,29cyclictest0-21swapper/1022:09:022
200734699304,26cyclictest0-21swapper/920:03:4115
200734699304,26cyclictest0-21swapper/920:03:4115
2007346993029,1cyclictest1774-21snmpd00:31:4415
200734699300,29cyclictest0-21swapper/920:30:2915
200734699300,29cyclictest0-21swapper/919:10:0815
200734699300,1cyclictest0-21swapper/920:40:1415
2007341993029,1cyclictest1774-21snmpd22:34:5714
200734199300,30cyclictest0-21swapper/821:11:5814
200734199300,1cyclictest0-21swapper/821:18:2114
2007338993029,1cyclictest1774-21snmpd22:22:2913
2007338993029,1cyclictest1774-21snmpd22:04:0413
200733899300,29cyclictest0-21swapper/722:13:4413
2007336993029,1cyclictest1774-21snmpd23:18:4512
2007336993029,1cyclictest1774-21snmpd21:55:4912
2007336993029,1cyclictest1774-21snmpd21:27:5712
200733699300,29cyclictest0-21swapper/622:50:0212
200733699300,1cyclictest0-21swapper/622:04:5212
2007332993029,1cyclictest1774-21snmpd20:43:0311
200733299300,1cyclictest0-21swapper/520:24:0411
2007330993030,0cyclictest0-21swapper/422:07:4910
2007330993029,1cyclictest1774-21snmpd22:00:4910
200733099300,30cyclictest0-21swapper/423:27:3010
2007326993029,1cyclictest1774-21snmpd20:52:509
2007326993029,1cyclictest0-21swapper/323:23:039
2007326993029,1cyclictest0-21swapper/322:17:559
200732699300,30cyclictest0-21swapper/322:30:299
2007323993029,1cyclictest1774-21snmpd22:13:258
200732399300,30cyclictest0-21swapper/220:57:458
200732399300,1cyclictest0-21swapper/200:02:088
2007320993029,1cyclictest1774-21snmpd21:52:221
200732099300,1cyclictest0-21swapper/122:40:291
2007317993029,1cyclictest1774-21snmpd22:59:560
200731799300,30cyclictest0-21swapper/020:03:040
200731799300,30cyclictest0-21swapper/020:03:040
200736299290,29cyclictest0-21swapper/1500:15:157
200736099295,13cyclictest0-21swapper/1423:23:436
200736099295,13cyclictest0-21swapper/1420:06:016
200736099295,13cyclictest0-21swapper/1420:06:016
200736099295,13cyclictest0-21swapper/1419:22:056
200736099294,11cyclictest0-21swapper/1422:17:496
2007360992928,1cyclictest1774-21snmpd23:30:306
200735799290,28cyclictest0-21swapper/1319:10:155
200735399296,1cyclictest0-21swapper/1223:27:274
2007353992928,1cyclictest1774-21snmpd22:41:214
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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