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2026-06-24 - 20:38
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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 Wed Jun 24, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4336232460,1sleep00-21swapper/011:07:440
90416992724,1cyclictest0-21swapper/309:40:123
90416992421,1cyclictest0-21swapper/311:19:593
90416992320,1cyclictest0-21swapper/308:45:013
90416992219,1cyclictest0-21swapper/311:50:013
90416992219,1cyclictest0-21swapper/311:00:113
90416992219,1cyclictest0-21swapper/307:20:113
9041699212,15cyclictest276873-21taskset09:28:283
90416992118,1cyclictest0-21swapper/307:55:203
90416992118,1cyclictest0-21swapper/307:40:003
9041699202,14cyclictest306800-21taskset09:45:243
90416992018,1cyclictest0-21swapper/308:00:023
90416992017,1cyclictest0-21swapper/311:40:073
90416992017,1cyclictest0-21swapper/310:35:123
90416992017,1cyclictest0-21swapper/310:30:183
9041699201,15cyclictest370487-21taskset10:26:333
9041699201,13cyclictest363952-21taskset10:25:003
9041699192,13cyclictest512041-21taskset11:57:393
9041699192,13cyclictest417221-21taskset10:55:353
90416991916,1cyclictest0-21swapper/310:49:333
90416991916,1cyclictest0-21swapper/308:45:423
90416991916,1cyclictest0-21swapper/308:30:163
90416991916,1cyclictest0-21swapper/308:05:193
90416991916,1cyclictest0-21swapper/307:40:023
9041699191,14cyclictest427157-21taskset11:05:143
9041699191,14cyclictest226778-21taskset08:54:483
9041699191,13cyclictest410942-21taskset10:54:563
9041699191,13cyclictest340593-21taskset10:10:013
9041699188,6cyclictest1433182sleep307:45:493
9041699187,7cyclictest3391422sleep310:06:383
9041699186,9cyclictest204223-21taskset08:35:193
9041699182,12cyclictest181705-21taskset08:15:433
90416991815,1cyclictest0-21swapper/312:30:263
90416991815,1cyclictest0-21swapper/311:22:123
90416991815,1cyclictest0-21swapper/309:35:163
90416991815,1cyclictest0-21swapper/309:00:053
9041699181,13cyclictest558486-21taskset12:25:503
9041699181,13cyclictest536308-21taskset12:14:503
9041699181,13cyclictest479960-21taskset11:35:453
9041699181,13cyclictest353288-21taskset10:15:193
9041699181,13cyclictest227102-21chrt08:55:113
9041699181,13cyclictest194549-21taskset08:26:133
9041699181,13cyclictest182877-21taskset08:20:173
9041699181,13cyclictest169527-21taskset08:10:013
9041699181,13cyclictest169527-21taskset08:10:013
90416991714,1cyclictest0-21swapper/312:15:253
90416991714,1cyclictest0-21swapper/312:05:203
90416991714,1cyclictest0-21swapper/312:00:133
90416991714,1cyclictest0-21swapper/311:25:163
90416991714,1cyclictest0-21swapper/309:20:133
90416991714,1cyclictest0-21swapper/309:15:173
90416991713,1cyclictest0-21swapper/312:20:253
9041699171,13cyclictest573908-21taskset12:35:283
9041699171,13cyclictest504449-21taskset11:53:213
9041699171,13cyclictest441302-21taskset11:12:163
9041699171,13cyclictest394521-21taskset10:42:533
9041699171,13cyclictest319586-21taskset09:55:183
9041699171,13cyclictest314524-21taskset09:50:203
9041699171,13cyclictest252278-21taskset09:10:353
9041699171,13cyclictest105004-21taskset07:17:293
9041699171,12cyclictest324976-21taskset10:00:023
90416991613,1cyclictest0-21swapper/311:30:153
9041699161,13cyclictest124092-21taskset07:31:093
9041699161,12cyclictest95899-21taskset07:10:253
9041699161,12cyclictest277805-21taskset09:30:113
9041699161,12cyclictest245687-21taskset09:05:583
9041699161,12cyclictest149727-21taskset07:51:183
9041699161,10cyclictest111914-21chrt07:25:113
4635722160,3sleep0222-21plymouthd11:25:210
3714592161,4sleep1371463-21ssh10:29:081
4869502151,10sleep1487096-21ntpq11:40:211
958192141,10sleep195863-21ntpq07:10:241
4412952140,9sleep2441301-21ssh11:12:152
2398702141,9sleep0239902-21/usr/sbin/munin09:05:130
4818052137,1sleep2171rcu_preempt11:40:102
3127632130,10sleep1314362-21sed09:50:191
2831142139,2sleep2222-21plymouthd09:30:242
2752292131,4sleep1275275-21ntpq09:25:221
2649742131,8sleep1266635-21kthreadcore09:20:201
2147392130,10sleep1215091-21cut08:45:171
1901332131,8sleep0191604-21cat08:25:190
90416991210,1cyclictest0-21swapper/307:10:013
5656272120,9sleep1565713-21mailstats12:30:261
4339232120,9sleep1433929-21ssh11:08:371
3410672120,9sleep0341403-21sed10:10:160
2927922127,3sleep1331ktimers/109:38:531
2774042121,8sleep2277434-21apt-get09:30:002
2465402120,9sleep1246659-21/usr/sbin/munin09:10:141
2335042121,8sleep0233242-21sendmail-msp09:00:110
1402352120,4sleep0142080-21grep07:45:190
1246982122,5sleep1222-21plymouthd07:35:121
842162110,6sleep2222-21plymouthd07:05:112
5512472111,3sleep2551253-21ssh12:22:362
5108512110,8sleep2510889-21ssh11:55:262
4793422110,8sleep2473956-21/usr/sbin/munin11:35:262
4222062111,7sleep1423931-21kthreadcore11:00:201
3632012111,7sleep1363207-21ssh10:23:041
3485252111,7sleep0348609-21grep10:15:120
3472092110,4sleep1347216-21ssh10:12:211
3088322110,2sleep20-21swapper/209:49:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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