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2026-09-24 - 18:55
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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 Thu Sep 24, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176212199183,11sleep10-21swapper/107:09:201
174222199182,12sleep30-21swapper/307:06:443
174042184166,13sleep00-21swapper/007:06:290
173912180163,13sleep20-21swapper/207:06:202
42002430,0sleep10-21swapper/110:26:201
129812420,0sleep10-21swapper/111:04:181
25513280,0sleep30-21swapper/311:43:323
23163270,0sleep323166-21unixbench_multi09:30:203
178779970,0cyclictest81rcu_preempt11:50:142
178659971,3cyclictest18464-21munin-run08:15:000
178659970,3cyclictest10748-21munin-run09:25:000
178819962,4cyclictest0-21swapper/311:54:093
178819962,4cyclictest0-21swapper/310:31:303
178819960,6cyclictest0-21swapper/312:20:533
178819960,6cyclictest0-21swapper/311:29:573
178819960,6cyclictest0-21swapper/311:20:413
178819960,6cyclictest0-21swapper/311:07:143
178819960,6cyclictest0-21swapper/310:59:383
178819960,6cyclictest0-21swapper/310:16:413
178819960,6cyclictest0-21swapper/310:01:223
178819960,6cyclictest0-21swapper/309:55:013
178819960,6cyclictest0-21swapper/309:51:293
178819960,1cyclictest0-21swapper/312:17:043
178819960,1cyclictest0-21swapper/311:55:253
178819960,1cyclictest0-21swapper/310:51:493
178659960,3cyclictest6085-21munin-run07:50:010
178659960,3cyclictest25954-21awk07:25:010
18626250,0sleep10-21swapper/107:10:151
178819952,3cyclictest0-21swapper/310:36:223
178819952,3cyclictest0-21swapper/310:25:213
178819952,3cyclictest0-21swapper/310:20:493
178819951,4cyclictest0-21swapper/312:05:003
178819950,5cyclictest0-21swapper/312:35:443
178819950,5cyclictest0-21swapper/312:30:053
178819950,5cyclictest0-21swapper/312:25:373
178819950,5cyclictest0-21swapper/312:10:363
178819950,5cyclictest0-21swapper/311:45:043
178819950,5cyclictest0-21swapper/311:35:243
178819950,5cyclictest0-21swapper/311:30:013
178819950,5cyclictest0-21swapper/311:15:373
178819950,5cyclictest0-21swapper/311:10:133
178819950,5cyclictest0-21swapper/311:00:343
178819950,5cyclictest0-21swapper/310:45:533
178819950,5cyclictest0-21swapper/310:40:253
178819950,5cyclictest0-21swapper/310:10:143
178819950,5cyclictest0-21swapper/310:05:063
178819950,5cyclictest0-21swapper/309:40:503
178819950,5cyclictest0-21swapper/309:36:223
178819950,5cyclictest0-21swapper/307:37:373
178819950,5cyclictest0-21swapper/307:32:343
178819950,0cyclictest0-21swapper/312:02:333
178819950,0cyclictest0-21swapper/309:45:063
178819950,0cyclictest0-21swapper/308:15:203
178779955,0cyclictest557-21apt-get10:25:102
178779955,0cyclictest0-21swapper/211:33:262
178779955,0cyclictest0-21swapper/210:01:452
178779950,5cyclictest61-21kswapd010:20:022
178779950,5cyclictest0-21swapper/212:08:122
178779950,5cyclictest0-21swapper/211:49:422
178779950,5cyclictest0-21swapper/210:35:052
178779950,5cyclictest0-21swapper/209:39:202
178779950,1cyclictest26701-21diskstats07:25:132
178779950,1cyclictest14120-21ssh11:20:352
178779950,0cyclictest13463-21diskmemload12:36:432
178699951,2cyclictest0-21swapper/110:20:021
178699951,2cyclictest0-21swapper/110:10:161
178699950,5cyclictest0-21swapper/111:27:361
178659950,4cyclictest0-21swapper/011:00:140
318240,0sleep10-21swapper/109:35:191
28993240,0sleep10-21swapper/109:50:131
25298240,0sleep00-21swapper/012:32:410
178819943,1cyclictest29027-21grep08:35:123
178819941,3cyclictest0-21swapper/307:40:043
178819941,3cyclictest0-21swapper/307:27:343
178819940,4cyclictest16209-21apt-get08:10:113
178819940,4cyclictest0-21swapper/309:20:113
178819940,4cyclictest0-21swapper/309:15:123
178819940,4cyclictest0-21swapper/309:10:113
178819940,4cyclictest0-21swapper/307:20:123
178819940,4cyclictest0-21swapper/307:17:333
178819940,4cyclictest0-21swapper/307:12:373
178819940,3cyclictest6830-21df07:50:123
178779944,0cyclictest1355-21apt-get07:40:022
178779944,0cyclictest0-21swapper/210:40:022
178779943,1cyclictest31-21ksoftirqd/210:55:002
178779943,1cyclictest31-21ksoftirqd/208:25:122
178779943,1cyclictest21862-21kworker/2:007:56:002
178779942,2cyclictest31-21ksoftirqd/210:55:152
178779942,2cyclictest21862-21kworker/2:011:05:182
178779942,2cyclictest21862-21kworker/2:009:40:382
178779941,2cyclictest0-21swapper/210:05:112
178779941,1cyclictest0-21swapper/211:35:122
178779941,1cyclictest0-21swapper/207:35:122
178779940,4cyclictest13463-21diskmemload12:00:502
178779940,4cyclictest13463-21diskmemload11:17:442
178779940,4cyclictest0-21swapper/212:23:442
178779940,4cyclictest0-21swapper/212:19:132
178779940,4cyclictest0-21swapper/211:58:322
178779940,4cyclictest0-21swapper/211:26:062
178779940,4cyclictest0-21swapper/210:10:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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