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2026-09-14 - 22:06
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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 Mon Sep 14, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65783921160,2sleep0221rcuc/008:15:190
6230232320,3sleep014-21ksoftirqd/007:45:190
570755992825,1cyclictest0-21swapper/309:30:013
570755992825,1cyclictest0-21swapper/307:15:003
570755992623,1cyclictest0-21swapper/309:20:013
570755992522,1cyclictest0-21swapper/312:30:113
570755992522,1cyclictest0-21swapper/310:50:113
570755992522,1cyclictest0-21swapper/310:04:593
570755992320,1cyclictest0-21swapper/311:35:153
570755992320,1cyclictest0-21swapper/310:40:263
570755992320,1cyclictest0-21swapper/309:10:223
570755992219,1cyclictest0-21swapper/311:40:163
570755992219,1cyclictest0-21swapper/309:55:003
570755992219,1cyclictest0-21swapper/309:20:153
570755992219,1cyclictest0-21swapper/309:00:223
57075599221,16cyclictest1032745-21turbostat12:24:593
57075599221,15cyclictest773921-21taskset09:40:013
570755992119,1cyclictest0-21swapper/308:20:003
570755992118,1cyclictest0-21swapper/312:00:143
570755992118,1cyclictest0-21swapper/310:20:193
570755992118,1cyclictest0-21swapper/309:47:233
570755992118,1cyclictest0-21swapper/308:40:203
570755992118,1cyclictest0-21swapper/308:25:003
570755992018,1cyclictest0-21swapper/311:00:003
570755992018,1cyclictest0-21swapper/307:40:193
570755992017,1cyclictest0-21swapper/311:30:013
570755992017,1cyclictest0-21swapper/308:40:003
570755992017,1cyclictest0-21swapper/307:21:113
570755992016,1cyclictest0-21swapper/312:00:013
57075599201,14cyclictest766004-21turbostat09:35:003
570755991917,1cyclictest0-21swapper/308:35:013
570755991916,1cyclictest0-21swapper/311:20:243
570755991916,1cyclictest0-21swapper/311:15:273
570755991916,1cyclictest0-21swapper/311:10:143
57075599191,14cyclictest713761-21taskset08:57:383
57075599191,14cyclictest1023470-21taskset12:16:173
57075599191,13cyclictest821325-21chrt10:10:123
8862312181,10sleep2887924-21grep10:50:172
57075599182,13cyclictest977436-21taskset11:48:553
570755991815,1cyclictest0-21swapper/311:00:123
570755991815,1cyclictest0-21swapper/309:40:173
57075599181,13cyclictest865253-21taskset10:35:213
57075599181,13cyclictest859107-21taskset10:31:493
57075599181,13cyclictest851561-21taskset10:27:403
57075599181,13cyclictest804538-21taskset09:57:573
57075599181,13cyclictest649726-21taskset08:09:563
57075599181,13cyclictest643257-21taskset08:04:113
57075599172,12cyclictest707266-21taskset08:51:143
57075599172,12cyclictest701016-21taskset08:47:563
57075599171,13cyclictest984175-21taskset11:50:503
57075599171,13cyclictest947092-21taskset11:30:153
57075599171,13cyclictest913872-21taskset11:06:123
57075599171,13cyclictest836035-21taskset10:18:143
57075599171,13cyclictest598035-21taskset07:25:383
57075599171,13cyclictest1055014-21taskset12:36:143
57075599171,12cyclictest813484-21taskset10:05:033
57075599171,12cyclictest726520-21taskset09:06:293
57075599171,12cyclictest650036-21chrt08:10:123
57075599171,12cyclictest604429-21taskset07:30:463
6296172161,5sleep2629657-21ntpq07:50:242
570755991614,1cyclictest0-21swapper/312:05:233
570755991613,1cyclictest0-21swapper/312:10:103
570755991613,1cyclictest0-21swapper/308:25:183
57075599161,12cyclictest882271-21taskset10:45:353
57075599161,12cyclictest624349-21taskset07:50:043
57075599161,12cyclictest585203-21taskset07:15:283
57075599161,12cyclictest1039536-21taskset12:26:563
57075599161,11cyclictest630764-21taskset07:55:093
57075599161,11cyclictest617972-21taskset07:45:073
8893822151,10sleep1889427-21ntpq10:50:201
7663522151,10sleep0766358-21ssh09:35:140
570755991513,1cyclictest0-21swapper/307:35:163
7655522141,4sleep1222-21plymouthd09:33:461
6552522141,10sleep1655294-21/usr/sbin/munin08:10:231
6430472141,2sleep20-21swapper/208:01:302
5645522140,2sleep30-21swapper/307:05:033
9537662131,9sleep1953771-21sh11:33:171
8747982131,4sleep2868145-21sendmail-msp10:41:312
6295342130,10sleep0629573-21ntpq07:50:220
5886092131,8sleep1590125-21cut07:20:201
10251232132,7sleep01024809-21sendmail-msp12:20:120
9717082121,8sleep1972600-21cut11:45:171
9704812121,8sleep2970599-21tune2fs11:45:142
6642092124,5sleep2623794-21kworker/u16:0+ext4-rsv-conversion08:20:192
5704462120,2sleep10-21swapper/107:07:491
10069582122,6sleep11006997-21ntpq12:05:221
9390452113,2sleep1171rcu_preempt11:25:121
9230232111,6sleep0923084-21munin-run11:15:000
8763602110,8sleep1876400-21sh10:45:111
8361052110,8sleep2836110-21sh10:18:252
8208062110,2sleep20-21swapper/210:09:282
8049622110,7sleep1804964-21ssh09:59:071
7970622110,3sleep0222-21plymouthd09:53:540
7899652112,6sleep2790002-21apt-get09:50:102
6450942110,8sleep2646784-21cut08:05:182
5910542110,2sleep0222-21plymouthd07:20:230
10340612110,7sleep01034664-21cat12:25:170
10217252110,8sleep21022386-21sed12:15:212
9856042100,7sleep2985610-21ssh11:54:512
9802752101,7sleep1981911-21kthreadcore11:50:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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