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2026-04-08 - 16:23
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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 Wed Apr 08, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
80992999930,91cyclictest0-21swapper/008:20:120
809934998650,18cyclictest691ktimers/511:05:145
80993099750,56cyclictest917647-21kworker/u32:0+events_unbound11:49:331
80993099750,56cyclictest917647-21kworker/u32:0+events_unbound11:49:331
809930997336,18cyclictest331ktimers/111:34:191
809930997314,39cyclictest0-21swapper/108:05:151
80993099730,34cyclictest0-21swapper/109:14:261
809930997214,39cyclictest34-21ksoftirqd/109:54:191
809930997113,39cyclictest807285-21kworker/u32:2+events_unbound08:11:101
809930996850,18cyclictest0-21swapper/108:43:471
809930996626,39cyclictest0-21swapper/108:24:001
809930996425,39cyclictest0-21swapper/108:59:281
809930996424,39cyclictest0-21swapper/111:13:481
809930996344,0cyclictest0-21swapper/111:35:161
80993499623,19cyclictest0-21swapper/508:05:145
809930996122,39cyclictest0-21swapper/111:09:151
809930996022,19cyclictest0-21swapper/108:52:251
809930995858,0cyclictest0-21swapper/110:46:341
809930995638,18cyclictest873-21mta-sts-daemon07:47:271
809930995637,19cyclictest85750irq/36-eno1-TxRx-209:55:201
809930995637,19cyclictest331ktimers/109:17:521
809930995516,39cyclictest792-21rs:main1
809930995419,15cyclictest0-21swapper/107:33:091
809929995415,39cyclictest0-21swapper/012:10:150
809930995334,19cyclictest0-21swapper/108:25:081
809930995333,19cyclictest0-21swapper/111:57:071
809930995319,34cyclictest0-21swapper/107:26:201
809930995315,18cyclictest873-21mta-sts-daemon09:47:281
809930995314,39cyclictest101750irq/41-eno2-TxRx-210:35:201
809930995314,39cyclictest0-21swapper/112:24:391
809930995314,39cyclictest0-21swapper/111:43:291
809930995314,20cyclictest917647-21kworker/u32:0+events_unbound11:24:221
809930995313,39cyclictest0-21swapper/112:32:031
809930995310,40cyclictest886502-21taskset09:26:491
809934995213,38cyclictest0-21swapper/511:45:155
809934995213,38cyclictest0-21swapper/511:45:145
809930995233,19cyclictest0-21swapper/110:24:251
809930995233,19cyclictest0-21swapper/109:23:081
809930995233,19cyclictest0-21swapper/109:02:241
809930995233,19cyclictest0-21swapper/108:49:001
809930995233,19cyclictest0-21swapper/107:55:051
809930995233,19cyclictest0-21swapper/107:21:001
809930995233,19cyclictest0-21swapper/107:21:001
809930995233,0cyclictest0-21swapper/110:15:311
809930995214,19cyclictest974035-21ntp_states12:05:191
809930995214,19cyclictest0-21swapper/111:26:171
809930995213,39cyclictest0-21swapper/107:12:561
809934995132,19cyclictest0-21swapper/509:20:155
809930995132,19cyclictest0-21swapper/112:14:311
809930995132,19cyclictest0-21swapper/111:01:511
809930995132,19cyclictest0-21swapper/110:58:591
809930995132,19cyclictest0-21swapper/110:02:011
809930995132,19cyclictest0-21swapper/109:42:401
809930995132,19cyclictest0-21swapper/108:33:501
809930995132,19cyclictest0-21swapper/107:54:081
809930995132,19cyclictest0-21swapper/107:17:171
809930995113,19cyclictest0-21swapper/110:05:361
809930995112,19cyclictest0-21swapper/110:53:031
809934995032,18cyclictest0-21swapper/509:55:155
809934995012,19cyclictest0-21swapper/511:35:155
809934995011,19cyclictest0-21swapper/511:15:145
809930995031,19cyclictest0-21swapper/109:31:241
809930995011,39cyclictest0-21swapper/111:50:401
809929995032,0cyclictest0-21swapper/011:40:140
809934994910,39cyclictest0-21swapper/508:00:155
809933994930,19cyclictest0-21swapper/412:00:144
809932994911,19cyclictest0-21swapper/312:15:163
809930994931,18cyclictest0-21swapper/112:26:191
809930994931,18cyclictest0-21swapper/111:16:291
809930994931,18cyclictest0-21swapper/108:17:111
809930994931,18cyclictest0-21swapper/107:44:281
809930994930,19cyclictest0-21swapper/109:38:211
809930994930,19cyclictest0-21swapper/107:35:081
809930994929,19cyclictest0-21swapper/109:09:561
809930994910,19cyclictest0-21swapper/112:35:161
809934994810,19cyclictest0-21swapper/510:25:155
809930994830,18cyclictest0-21swapper/108:02:001
809930994829,19cyclictest0-21swapper/110:30:391
809931994728,19cyclictest0-21swapper/208:50:142
809930994728,19cyclictest0-21swapper/112:18:431
809930994728,19cyclictest0-21swapper/112:04:201
809930994728,19cyclictest0-21swapper/110:40:591
809930994728,19cyclictest0-21swapper/110:14:281
80993599467,38cyclictest0-21swapper/609:45:156
80993199468,19cyclictest0-21swapper/211:50:142
80993399457,19cyclictest0-21swapper/407:15:154
809930994526,19cyclictest0-21swapper/110:28:511
80992999445,19cyclictest0-21swapper/007:30:150
80993699433,39cyclictest0-21swapper/710:55:147
80993399435,19cyclictest0-21swapper/411:10:164
80992999434,39cyclictest0-21swapper/007:20:150
80992999434,39cyclictest0-21swapper/007:20:140
809929994122,19cyclictest0-21swapper/012:15:150
80993699401,39cyclictest0-21swapper/708:10:157
80993399401,39cyclictest0-21swapper/411:40:144
80993699390,19cyclictest0-21swapper/709:15:227
80993699390,18cyclictest0-21swapper/707:35:147
809936993819,17cyclictest0-21swapper/710:50:157
809932993837,1cyclictest0-21swapper/307:46:223
809929993838,0cyclictest0-21swapper/008:45:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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