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2026-04-17 - 17:54
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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 rackeslot8.osadl.org (updated Fri Apr 17, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3474621993027,1cyclictest0-21swapper/311:05:223
3474621992724,1cyclictest0-21swapper/311:20:013
3474621992623,1cyclictest0-21swapper/310:55:003
3474621992421,1cyclictest0-21swapper/311:35:013
3474621992421,1cyclictest0-21swapper/307:20:003
3474621992419,3cyclictest3739787-21sleep10:20:003
3474621992320,1cyclictest0-21swapper/312:10:003
37615312210,10sleep23761535-21ssh10:31:022
3474621992119,0cyclictest0-21swapper/312:30:003
3474621992118,1cyclictest0-21swapper/309:15:223
347462199202,14cyclictest3922773-21taskset12:15:193
3474621992017,1cyclictest0-21swapper/311:49:073
3474621992017,1cyclictest0-21swapper/309:50:183
347462199192,14cyclictest3870667-21taskset11:44:113
3474621991916,1cyclictest0-21swapper/312:35:413
3474621991915,1cyclictest0-21swapper/309:45:123
347462199191,14cyclictest3892897-21taskset11:56:223
347462199191,14cyclictest3778358-21sleep10:49:553
347462199191,14cyclictest3708699-21taskset09:59:473
347462199191,14cyclictest3490439-21taskset07:20:153
3474621991910,6cyclictest36119902sleep308:53:463
3474621991910,6cyclictest36119902sleep308:53:453
34736192191,7sleep23473647-21ntpq07:05:242
347462199189,7cyclictest3496118-21turbostat07:29:553
3474621991815,1cyclictest0-21swapper/312:20:163
3474621991815,1cyclictest0-21swapper/312:10:123
3474621991815,1cyclictest0-21swapper/311:00:013
3474621991815,1cyclictest0-21swapper/310:25:123
3474621991815,1cyclictest0-21swapper/308:55:293
347462199181,14cyclictest3566849-21taskset08:18:323
347462199181,13cyclictest3845780-21taskset11:25:233
347462199181,13cyclictest3730538-21taskset10:10:303
347462199181,13cyclictest3684140-21taskset09:40:273
347462199181,13cyclictest3605371-21taskset08:46:063
347462199181,12cyclictest3630590-21chrt09:05:233
347462199180,14cyclictest3540322-21taskset07:55:243
36753412170,6sleep0151ktimers/009:35:190
347462199175,9cyclictest3559650-21chrt08:10:223
3474621991715,1cyclictest0-21swapper/310:40:013
3474621991715,1cyclictest0-21swapper/309:35:213
3474621991715,1cyclictest0-21swapper/309:25:013
3474621991715,0cyclictest0-21swapper/311:50:143
3474621991714,1cyclictest0-21swapper/311:35:183
3474621991714,1cyclictest0-21swapper/311:20:163
3474621991714,1cyclictest0-21swapper/311:10:163
3474621991714,1cyclictest0-21swapper/311:00:173
3474621991714,1cyclictest0-21swapper/309:35:013
3474621991714,1cyclictest0-21swapper/309:25:193
3474621991714,1cyclictest0-21swapper/308:20:183
3474621991714,1cyclictest0-21swapper/307:40:003
3474621991714,1cyclictest0-21swapper/307:30:253
347462199171,13cyclictest3777463-21taskset10:42:253
347462199171,13cyclictest3762104-21taskset10:32:473
347462199171,13cyclictest3746625-21taskset10:22:333
347462199171,13cyclictest3722389-21taskset10:05:253
347462199171,13cyclictest3715522-21taskset10:02:053
347462199171,13cyclictest3638698-21taskset09:13:293
347462199171,13cyclictest3624084-21taskset09:00:223
347462199171,13cyclictest3554003-21taskset08:08:273
347462199171,12cyclictest3531713-21taskset07:50:183
347462199171,12cyclictest3521947-21turbostat07:45:003
347462199170,13cyclictest3594968-21taskset08:40:173
347462199170,12cyclictest3474800-21taskset07:10:013
347462199161,12cyclictest3946791-21taskset12:30:383
347462199161,12cyclictest3579643-21taskset08:26:543
347462199161,12cyclictest3547629-21taskset08:03:573
347462199160,13cyclictest3900537-21taskset12:01:033
38325212150,1sleep20-21swapper/211:20:012
37452722151,11sleep23745322-21ntpq10:20:202
347462199151,12cyclictest3528030-21taskset07:46:093
347462199151,11cyclictest3592435-21taskset08:35:403
347462199151,11cyclictest3586077-21taskset08:31:433
39317822140,5sleep2222-21plymouthd12:21:482
37544452140,11sleep23754447-21ssh10:27:542
38333422130,9sleep13834169-21kthreadcore11:20:171
37687452130,3sleep23768928-21cat10:35:232
36476612130,5sleep03648059-21cut09:20:160
36111502130,1sleep2421rcuc/208:50:182
36111502130,1sleep2421rcuc/208:50:182
34743102130,2sleep30-21swapper/307:07:453
129998130,9rtkit-daemon3834172-21chrt11:20:172
129998130,5rtkit-daemon3517194-21kthreadcore07:40:172
38941462121,8sleep03894129-21sendmail-msp12:00:010
38611762121,8sleep03861222-21ntpq11:35:230
35854092120,4sleep23585450-21ntpq08:30:232
35813092121,8sleep13582319-21tr08:30:191
35179582121,8sleep13519736-21grep07:40:191
129998120,8rtkit-daemon3546867-21ld08:00:232
39098572110,3sleep1222-21plymouthd12:10:041
38777552111,3sleep0222-21plymouthd11:47:100
38554662111,7sleep23855727-21sh11:35:012
37935052110,8sleep13793511-21ssh10:54:151
37635622110,2sleep014-21ksoftirqd/010:35:120
37487162110,8sleep13749551-21cat10:25:161
36933162110,2sleep1222-21plymouthd09:49:481
35300332110,8sleep23531711-21cut07:50:182
35222292112,5sleep03522225-21apt-get07:45:110
35016082111,6sleep13501647-21ntpq07:25:241
129998110,8rtkit-daemon3481249-21munin-node11:54:300
129998110,7rtkit-daemon3955759-21ssh12:39:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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