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2025-06-16 - 02:40
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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 rackfslot7.osadl.org (updated Sun Jun 15, 2025 12:46:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3762494999877,20cyclictest0-21swapper/411:25:174
3762494999636,38cyclictest3830520-21unixbench_multi09:05:254
3762494998932,38cyclictest3923908-21grep11:50:254
3762494997517,40cyclictest3876829-21diskstats10:30:154
3762497997030,19cyclictest191rcu_preempt08:30:187
3762494997029,39cyclictest0-21swapper/408:27:074
3762494996930,19cyclictest0-21swapper/411:02:154
3762494996929,19cyclictest0-21swapper/408:59:074
3762494996911,19cyclictest0-21swapper/411:37:434
376249499679,19cyclictest0-21swapper/408:18:154
376249499677,59cyclictest3796636-21chrt08:05:334
3762494996729,19cyclictest3863658-21ntp_states10:05:254
3762494996424,19cyclictest0-21swapper/411:41:474
3762494996423,39cyclictest0-21swapper/412:16:474
3762494996423,20cyclictest0-21swapper/410:44:234
3762494996423,20cyclictest0-21swapper/407:31:154
3762494996324,19cyclictest0-21swapper/412:32:044
3762494996324,19cyclictest0-21swapper/411:22:274
3762494996323,19cyclictest0-21swapper/408:22:034
3762494996223,19cyclictest0-21swapper/407:26:074
3762494996122,19cyclictest0-21swapper/412:06:074
3762494996121,40cyclictest0-21swapper/407:35:254
3762494996020,39cyclictest0-21swapper/412:05:014
3762494996020,19cyclictest0-21swapper/410:11:154
3762494996020,19cyclictest0-21swapper/409:14:354
3762494995919,20cyclictest0-21swapper/409:27:214
376249499590,59cyclictest3853210-21taskset09:47:134
3762494995819,19cyclictest0-21swapper/410:17:434
3762494995719,21cyclictest0-21swapper/411:05:354
3762494995719,19cyclictest0-21swapper/409:40:474
3762494995638,18cyclictest601ktimers/410:20:454
3762494995617,39cyclictest3762180-21dh_strip_nondet07:10:434
3762495995537,18cyclictest3907449-21kworker/u32:1+flush-8:011:57:345
3762494995537,18cyclictest601ktimers/409:50:174
3762494995513,20cyclictest0-21swapper/412:25:024
3762494995513,20cyclictest0-21swapper/412:25:024
3762494995513,1cyclictest778-21dbus-daemon10:35:234
3762495995436,18cyclictest3724807-21kworker/u32:1+flush-8:007:27:155
3762494995435,18cyclictest3810010-21ntpq08:30:234
3762494995416,19cyclictest3813943-21munin-run08:40:014
3762494995414,0cyclictest0-21swapper/409:02:434
3762494995314,20cyclictest0-21swapper/407:56:454
3762494995314,19cyclictest0-21swapper/410:54:314
3762494995313,40cyclictest0-21swapper/407:42:474
3762494995313,20cyclictest0-21swapper/409:17:314
3762494995313,20cyclictest0-21swapper/408:14:154
3762494995313,20cyclictest0-21swapper/407:46:314
3762494995313,20cyclictest0-21swapper/407:46:314
3762495995234,18cyclictest3830626-21kworker/u32:1+flush-8:009:51:255
3762495995214,19cyclictest0-21swapper/510:40:215
3762494995213,20cyclictest0-21swapper/410:49:054
3762494995213,19cyclictest0-21swapper/412:35:424
3762494995212,21cyclictest0-21swapper/411:34:594
3762494995212,21cyclictest0-21swapper/409:33:474
3762494995212,21cyclictest0-21swapper/408:44:194
3762497995133,0cyclictest0-21swapper/710:45:187
3762494995132,19cyclictest0-21swapper/410:28:274
3762494995131,20cyclictest0-21swapper/411:17:314
3762494995113,19cyclictest3793116-21ntpq08:00:214
3762494995112,20cyclictest0-21swapper/411:45:594
3762494995112,19cyclictest0-21swapper/412:20:354
3762494995112,19cyclictest0-21swapper/411:10:394
3762494995112,19cyclictest0-21swapper/410:59:394
3762494995112,19cyclictest0-21swapper/408:52:274
3762494995112,19cyclictest0-21swapper/408:47:314
3762494995112,19cyclictest0-21swapper/407:51:394
3762494995112,19cyclictest0-21swapper/407:51:394
3762494995111,39cyclictest0-21swapper/407:19:394
3762494995111,21cyclictest0-21swapper/412:12:194
3762494995111,21cyclictest0-21swapper/412:12:194
3762492995112,39cyclictest0-21swapper/207:25:182
3762494995031,19cyclictest0-21swapper/410:01:594
3762494995030,20cyclictest0-21swapper/409:38:314
3762494995011,19cyclictest0-21swapper/409:56:114
3762494995011,19cyclictest0-21swapper/407:21:554
3762494995010,22cyclictest0-21swapper/409:20:554
3762497994911,38cyclictest0-21swapper/711:40:187
3762494994910,19cyclictest0-21swapper/411:55:514
376249699488,39cyclictest0-21swapper/608:45:186
3762495994810,38cyclictest0-21swapper/511:20:185
376249399479,38cyclictest0-21swapper/308:00:173
376249699456,19cyclictest0-21swapper/611:30:186
376249299456,39cyclictest0-21swapper/208:10:182
376249799446,19cyclictest0-21swapper/707:40:187
376249699446,19cyclictest0-21swapper/608:10:186
376249199446,19cyclictest0-21swapper/111:05:181
376249799435,19cyclictest0-21swapper/710:15:187
376249799435,19cyclictest0-21swapper/709:20:167
376249799434,39cyclictest88-21ksoftirqd/709:00:207
376249699422,39cyclictest0-21swapper/607:20:176
376249599424,19cyclictest0-21swapper/512:35:175
3762495994224,18cyclictest691ktimers/510:35:215
376249299423,19cyclictest0-21swapper/209:10:182
3762496993921,18cyclictest0-21swapper/612:05:206
3762496993814,19cyclictest0-21swapper/607:25:186
3762495993820,18cyclictest0-21swapper/511:10:215
376249399380,19cyclictest0-21swapper/310:25:193
376249199380,19cyclictest0-21swapper/112:20:241
3762495993719,18cyclictest0-21swapper/508:27:195
376249599370,18cyclictest102-21khungtaskd09:21:235
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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