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2026-08-01 - 01:21
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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 Jul 31, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
459515993027,1cyclictest0-21swapper/309:40:013
459515993027,1cyclictest0-21swapper/307:25:013
459515992624,0cyclictest0-21swapper/311:24:443
459515992623,1cyclictest0-21swapper/311:40:173
459515992623,1cyclictest0-21swapper/310:40:203
45951599251,19cyclictest843595-21turbostat11:39:553
459515992421,1cyclictest0-21swapper/311:20:013
459515992319,1cyclictest0-21swapper/312:20:273
459515992311,8cyclictest930103-21sleep12:30:003
45951599221,15cyclictest639300-21taskset09:24:273
459515992118,1cyclictest0-21swapper/310:35:003
459515992118,1cyclictest0-21swapper/310:20:013
45951599211,15cyclictest525720-21taskset07:58:123
45951599211,14cyclictest694246-21taskset09:59:563
459515992017,1cyclictest0-21swapper/307:30:003
45951599201,15cyclictest725996-21taskset10:20:083
45951599201,14cyclictest551791-21taskset08:20:013
459515991917,1cyclictest0-21swapper/308:30:003
459515991916,1cyclictest0-21swapper/311:50:113
459515991916,1cyclictest0-21swapper/310:55:173
459515991916,1cyclictest0-21swapper/308:00:063
45951599191,14cyclictest904313-21taskset12:10:223
45951599191,14cyclictest551555-21turbostat08:20:003
45951599191,10cyclictest487368-21sleep07:34:553
7943222182,12sleep2794367-21ntp_states11:00:262
45951599188,7cyclictest710082-21sleep10:10:003
459515991816,1cyclictest0-21swapper/309:40:053
459515991815,1cyclictest0-21swapper/311:00:153
459515991815,1cyclictest0-21swapper/309:00:193
459515991815,1cyclictest0-21swapper/307:40:093
45951599181,14cyclictest590807-21taskset08:50:163
45951599181,13cyclictest943916-21taskset12:35:283
45951599181,13cyclictest883699-21taskset12:00:163
45951599181,13cyclictest865915-21taskset11:46:333
45951599181,13cyclictest842248-21taskset11:31:173
45951599181,13cyclictest833315-21taskset11:25:203
45951599181,13cyclictest700627-21taskset10:00:363
45951599181,13cyclictest653553-21taskset09:30:373
45951599181,13cyclictest624189-21taskset09:15:133
45951599181,13cyclictest613245-21taskset09:05:193
45951599181,13cyclictest602817-21taskset08:57:373
45951599181,13cyclictest468306-21taskset07:15:063
45951599181,12cyclictest804713-21taskset11:10:123
45951599180,9cyclictest513051-21sleep07:54:563
459515991715,1cyclictest0-21swapper/310:35:203
459515991714,1cyclictest0-21swapper/308:45:193
459515991714,1cyclictest0-21swapper/307:40:013
45951599171,13cyclictest898125-21taskset12:08:383
45951599171,13cyclictest733880-21taskset10:25:023
45951599171,13cyclictest733880-21taskset10:25:023
45951599171,13cyclictest676354-21taskset09:45:203
45951599171,13cyclictest538997-21taskset08:10:033
45951599171,13cyclictest537400-21taskset08:05:213
45951599171,12cyclictest936265-21taskset12:30:273
45951599171,12cyclictest906748-21taskset12:15:073
45951599171,12cyclictest881837-21taskset11:57:113
45951599171,12cyclictest778347-21taskset10:50:203
45951599171,12cyclictest772897-21taskset10:49:553
45951599171,12cyclictest713998-21taskset10:10:183
45951599171,12cyclictest577491-21taskset08:40:053
45951599171,12cyclictest576863-21taskset08:35:323
45951599171,12cyclictest576863-21taskset08:35:323
45951599171,11cyclictest684341-21chrt09:50:213
45951599171,11cyclictest459612-21taskset07:10:013
459515991613,1cyclictest0-21swapper/309:25:153
45951599161,12cyclictest800029-21taskset11:05:193
45951599161,12cyclictest622559-21taskset09:11:493
45951599161,12cyclictest570606-21taskset08:32:163
45951599160,13cyclictest465588-21taskset07:11:173
45951599160,12cyclictest512888-21taskset07:48:183
9225442150,11sleep0922585-21ssh12:25:120
7018632141,10sleep2701869-21ssh10:04:092
6390842140,11sleep2639090-21ssh09:23:552
6165872140,10sleep2616730-21sed09:10:162
4944282141,9sleep1494956-21cut07:35:181
9306202131,3sleep2930824-21smartctl12:30:152
9129662131,9sleep1912970-21ssh12:16:111
8832172131,9sleep2883257-21ssh12:00:122
7976862131,9sleep1798449-21cut11:05:181
7643822131,3sleep1222-21plymouthd10:42:571
6037512133,7sleep2604315-21sed09:00:182
9199762121,8sleep2920005-21ssh12:20:212
8892082120,9sleep1889213-21sh12:00:431
8674302120,9sleep1867436-21ssh11:50:051
8620982120,2sleep0221rcuc/011:45:170
8277472121,3sleep0222-21plymouthd11:24:380
8203272121,4sleep2820081-21sendmail-msp11:20:062
6535342121,3sleep0222-21plymouthd09:30:350
6314902120,9sleep0631520-21dump-pmu-power09:20:000
5853922120,8sleep1586811-21grep08:45:221
5762692121,7sleep1576311-21ntpq08:35:231
5762692121,7sleep1576311-21ntpq08:35:231
9376192110,8sleep0937624-21sshd12:34:140
9294162110,3sleep2929423-21sshd-session12:28:142
9053562110,4sleep1905362-21ssh12:11:541
8931652111,2sleep00-21swapper/012:05:190
8180402110,8sleep0818169-21sed11:15:270
7676242110,8sleep2769255-21tr10:45:182
7550042111,7sleep0755043-21ssh10:35:260
6633142111,8sleep087-1kworker/0:1H+kblockd09:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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