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2026-04-04 - 02:00
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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 Fri Apr 03, 2026 12:46:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3117075991090,108cyclictest0-21swapper/108:45:101
3117079999273,19cyclictest0-21swapper/511:05:145
311707999900,89cyclictest0-21swapper/508:45:105
3117078999032,39cyclictest3204532-21basename09:50:004
3117078998245,18cyclictest236199-21snmpd11:28:164
311707999790,20cyclictest0-21swapper/508:25:155
3117078997719,39cyclictest3125985-21cat07:25:124
311708199760,0cyclictest0-21swapper/708:35:117
3117077997675,1cyclictest511ktimers/312:05:153
3117078997435,20cyclictest3161057-21kworker/u32:5+events_unbound10:15:124
3117078997435,20cyclictest3161057-21kworker/u32:5+events_unbound10:15:124
3117078997113,39cyclictest3117412-21/usr/sbin/munin07:10:194
3117078996932,18cyclictest601ktimers/408:38:544
3117078996930,38cyclictest3184436-21ld09:10:204
3117078996628,19cyclictest3296327-21cut12:35:124
311708199635,19cyclictest0-21swapper/708:50:157
311707899635,39cyclictest3231491-21chrt10:36:104
311707799591,19cyclictest0-21swapper/312:25:163
311707899580,39cyclictest3276174-21taskset11:56:224
311707899580,39cyclictest3137855-21/usr/sbin/munin07:45:214
3117078995638,18cyclictest601ktimers/409:02:444
3117074995537,18cyclictest0-21swapper/011:20:150
3117078995435,19cyclictest236199-21snmpd07:16:524
3117078995416,19cyclictest871-21mta-sts-daemon11:50:154
3117078995415,19cyclictest0-21swapper/412:24:054
311707899540,15cyclictest0-21swapper/409:57:404
3117077995414,39cyclictest0-21swapper/310:00:143
3117078995314,19cyclictest0-21swapper/412:05:024
3117078995314,19cyclictest0-21swapper/411:42:484
3117078995313,19cyclictest0-21swapper/412:30:024
311707899530,14cyclictest0-21swapper/408:45:104
3117078995234,18cyclictest601ktimers/409:18:124
3117078995233,19cyclictest0-21swapper/408:21:334
3117078995214,19cyclictest0-21swapper/411:04:434
3117078995213,39cyclictest0-21swapper/411:37:294
3117078995213,39cyclictest0-21swapper/411:12:504
3117078995213,39cyclictest0-21swapper/409:30:344
3117078995213,39cyclictest0-21swapper/409:28:304
3117078995213,39cyclictest0-21swapper/408:33:514
3117078995213,38cyclictest0-21swapper/408:10:204
3117078995213,19cyclictest0-21swapper/407:51:144
3117078995212,19cyclictest0-21swapper/411:31:204
311707899520,44cyclictest0-21swapper/410:10:224
3117074995213,0cyclictest0-21swapper/007:35:150
3117078995112,39cyclictest0-21swapper/408:06:284
3117078995112,19cyclictest0-21swapper/412:10:064
3117078995112,19cyclictest0-21swapper/408:56:544
3117078995112,19cyclictest0-21swapper/407:56:324
3117078995112,19cyclictest0-21swapper/407:20:124
3117078995111,39cyclictest3132644-21find07:35:234
3117078995031,19cyclictest0-21swapper/410:22:124
3117078995031,19cyclictest0-21swapper/410:22:124
3117078995011,39cyclictest0-21swapper/411:23:384
3117078995011,39cyclictest0-21swapper/410:06:464
3117078995011,39cyclictest0-21swapper/408:50:204
3117077995012,19cyclictest0-21swapper/309:35:163
3117074995031,19cyclictest0-21swapper/009:15:150
3117074995011,39cyclictest0-21swapper/008:00:160
3117081994911,38cyclictest0-21swapper/709:40:157
3117078994931,18cyclictest0-21swapper/411:19:364
3117078994931,18cyclictest0-21swapper/410:51:044
3117078994911,19cyclictest3117073-21cyclictest07:42:264
3117078994911,19cyclictest0-21swapper/412:16:484
3117078994911,19cyclictest0-21swapper/408:42:474
3117078994910,39cyclictest0-21swapper/410:29:254
3117078994910,39cyclictest0-21swapper/410:29:244
3117078994910,39cyclictest0-21swapper/409:52:154
3117078994910,39cyclictest0-21swapper/408:16:024
3117079994810,19cyclictest0-21swapper/511:10:165
311707899489,19cyclictest0-21swapper/410:57:144
311708199479,19cyclictest0-21swapper/707:40:167
311707899479,38cyclictest0-21swapper/408:25:154
311707899478,39cyclictest0-21swapper/411:45:364
311707899478,39cyclictest0-21swapper/408:03:064
311707899478,19cyclictest0-21swapper/412:34:344
311707599479,19cyclictest0-21swapper/111:05:141
311707999469,18cyclictest0-21swapper/511:35:155
311707899467,39cyclictest0-21swapper/409:09:254
311707899465,19cyclictest3233472-21ld10:40:184
311707499468,38cyclictest0-21swapper/007:10:150
311707899457,19cyclictest3189988-21wc09:20:204
3117077994526,19cyclictest0-21swapper/311:45:143
311707899445,39cyclictest0-21swapper/410:49:204
311707899445,39cyclictest0-21swapper/410:34:074
311707899445,39cyclictest0-21swapper/410:34:064
311707899444,39cyclictest0-21swapper/412:07:284
311707799446,19cyclictest0-21swapper/310:40:153
311707999433,19cyclictest0-21swapper/509:45:165
311707499435,19cyclictest0-21swapper/011:10:150
311708199424,18cyclictest0-21swapper/710:10:177
311707799424,19cyclictest0-21swapper/307:10:153
311707599413,19cyclictest0-21swapper/111:00:161
311707599410,40cyclictest34-21ksoftirqd/109:45:151
3117078994021,19cyclictest601ktimers/407:30:464
311707999390,20cyclictest0-21swapper/509:00:165
311707899390,0cyclictest0-21swapper/410:02:084
311707899390,0cyclictest0-21swapper/409:44:204
3117077993938,1cyclictest0-21swapper/308:30:193
311707799390,20cyclictest0-21swapper/309:10:163
3117076993819,19cyclictest0-21swapper/209:50:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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