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2026-04-20 - 22:22
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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 rack5slot2.osadl.org (updated Mon Apr 20, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
295812191174,12sleep00-21swapper/007:07:300
296202190157,12sleep30-21swapper/307:08:013
295922178163,11sleep10-21swapper/107:07:391
29686210589,12sleep20-21swapper/207:08:532
226782500,0sleep20-21swapper/212:34:362
15202500,0sleep10-21swapper/112:07:491
270372430,0sleep30-21swapper/312:35:533
13072410,0sleep225559-21diskmemload12:40:002
232562120,0sleep340-21ksoftirqd/312:34:563
2994099102,4cyclictest14526-21munin-run10:55:000
28528290,0sleep10-21swapper/111:33:251
299409970,3cyclictest24249-21basename09:25:010
299569960,4cyclictest0-21swapper/311:00:093
299409961,5cyclictest32532-21kworker/0:210:21:530
299409961,5cyclictest3157-21kworker/0:012:15:170
299409960,6cyclictest32532-21kworker/0:211:00:090
299409960,1cyclictest574-21munin-run11:20:000
299569952,3cyclictest0-21swapper/311:25:143
299569950,5cyclictest0-21swapper/311:10:563
299569950,5cyclictest0-21swapper/310:27:353
299569950,5cyclictest0-21swapper/309:13:223
299569950,4cyclictest0-21swapper/308:30:113
299569950,4cyclictest0-21swapper/308:15:123
299569950,0cyclictest30460-21diskstats11:50:133
299529950,5cyclictest0-21swapper/211:39:272
299529950,4cyclictest8228-21ssh09:16:372
299529950,4cyclictest0-21swapper/208:30:112
299459955,0cyclictest0-21swapper/111:15:261
299459951,3cyclictest0-21swapper/107:45:121
299459951,2cyclictest0-21swapper/110:55:111
299459951,2cyclictest0-21swapper/109:20:131
299459951,1cyclictest0-21swapper/107:30:111
299459950,5cyclictest0-21swapper/110:16:391
299459950,5cyclictest0-21swapper/109:54:501
299459950,5cyclictest0-21swapper/108:00:271
299409952,3cyclictest32532-21kworker/0:210:00:020
299409951,4cyclictest32532-21kworker/0:211:14:040
299409951,4cyclictest32532-21kworker/0:210:10:050
299409951,4cyclictest32532-21kworker/0:210:10:050
299409951,4cyclictest32532-21kworker/0:209:49:500
299409951,4cyclictest32532-21kworker/0:208:22:430
299409951,4cyclictest3157-21kworker/0:012:28:450
299409951,4cyclictest3157-21kworker/0:011:56:450
299409951,4cyclictest11907-21kworker/0:107:10:130
299409950,5cyclictest32532-21kworker/0:211:25:490
299409950,5cyclictest32532-21kworker/0:207:35:160
299409950,5cyclictest3157-21kworker/0:012:35:090
299409950,5cyclictest0-21swapper/012:07:350
299409950,5cyclictest0-21swapper/011:30:550
299409950,5cyclictest0-21swapper/010:15:110
299409950,5cyclictest0-21swapper/009:59:150
299409950,0cyclictest0-21swapper/010:38:500
299569944,0cyclictest32650-21kworker/3:009:57:023
299569944,0cyclictest0-21swapper/312:29:223
299569944,0cyclictest0-21swapper/312:05:383
299569944,0cyclictest0-21swapper/310:46:463
299569944,0cyclictest0-21swapper/309:46:503
299569943,1cyclictest0-21swapper/309:02:003
299569942,1cyclictest28106-21/usr/sbin/munin08:10:143
299569942,1cyclictest22245-21perl11:30:143
299569942,1cyclictest16221-21awk10:40:013
299569941,2cyclictest0-21swapper/310:40:123
299569941,2cyclictest0-21swapper/309:35:143
299569941,2cyclictest0-21swapper/307:55:123
299569941,1cyclictest0-21swapper/311:15:113
299569940,4cyclictest5843-21/usr/sbin/munin07:25:143
299569940,4cyclictest53312chrt07:21:383
299569940,4cyclictest0-21swapper/312:00:123
299569940,4cyclictest0-21swapper/311:06:593
299569940,4cyclictest0-21swapper/310:56:303
299569940,4cyclictest0-21swapper/310:32:563
299569940,4cyclictest0-21swapper/310:20:113
299569940,4cyclictest0-21swapper/310:13:433
299569940,4cyclictest0-21swapper/310:13:433
299569940,4cyclictest0-21swapper/309:50:133
299569940,4cyclictest0-21swapper/309:25:123
299569940,4cyclictest0-21swapper/309:15:133
299569940,4cyclictest0-21swapper/308:55:113
299569940,4cyclictest0-21swapper/308:25:173
299569940,3cyclictest9523-21latency_hist10:05:013
299569940,3cyclictest5001-21sh11:37:383
299569940,3cyclictest25642-21apt-get08:05:123
299569940,2cyclictest0-21swapper/310:07:323
299569940,2cyclictest0-21swapper/308:50:113
299569940,1cyclictest9390-21/usr/sbin/munin11:40:143
299569940,1cyclictest8158-21df11:55:133
299569940,1cyclictest25495-21munin-run12:20:003
299569940,1cyclictest24015-21fschecks_time09:40:143
299569940,1cyclictest20955-21memory11:45:163
299569940,1cyclictest15741-21/usr/sbin/munin07:45:133
299569940,1cyclictest13273-21/usr/sbin/munin07:40:203
299569940,1cyclictest1122-21/usr/sbin/munin11:20:193
299569940,1cyclictest10957-21/usr/sbin/munin08:40:203
299569940,1cyclictest0-21swapper/307:15:213
299569940,0cyclictest0-21swapper/310:15:213
299529943,1cyclictest0-21swapper/209:25:122
299529941,3cyclictest20756-21rm10:25:262
299529941,3cyclictest0-21swapper/208:10:132
299529941,2cyclictest0-21swapper/209:30:122
299529941,2cyclictest0-21swapper/208:35:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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