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2026-06-12 - 11:40
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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 Fri Jun 12, 2026 00:46:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2958820998548,18cyclictest601ktimers/422:12:014
2958820997838,19cyclictest3007686-21ntpq20:35:214
2958820997012,39cyclictest2998076-21aten2.4_rfpower20:20:124
2958820996951,18cyclictest0-21swapper/423:33:054
2958820996932,18cyclictest236199-21snmpd23:35:384
2958820996867,1cyclictest0-21swapper/400:30:114
2958820996727,0cyclictest0-21swapper/421:04:574
2958820996627,38cyclictest2972839-21aten2.4-expect19:35:134
2958820996626,19cyclictest0-21swapper/400:26:194
2958820996526,39cyclictest792-21rs:main4
2958820996526,19cyclictest0-21swapper/420:30:084
2958820996424,19cyclictest6050ktimers/423:40:474
2958820996019,19cyclictest3017403-21munin-run20:55:034
295882099590,39cyclictest3130187-21aten2.4_rfpower00:20:124
2958818995718,38cyclictest872-21mta-sts-daemon23:55:162
2958820995636,19cyclictest601ktimers/422:28:524
2958820995636,19cyclictest601ktimers/422:28:514
2958820995618,19cyclictest3041020-21sed21:35:244
2958820995618,19cyclictest2967273-21munin-run19:25:024
2958820995617,19cyclictest3140910-21munin-run00:40:024
2958820995537,18cyclictest874-21mta-sts-daemon22:40:234
2958820995537,18cyclictest0-21swapper/422:37:454
2958820995537,18cyclictest0-21swapper/422:37:454
2958820995537,18cyclictest0-21swapper/400:18:254
2958820995537,0cyclictest0-21swapper/420:45:064
2958820995536,19cyclictest601ktimers/423:15:004
2958820995518,18cyclictest3078151-21ls22:45:144
2958820995518,18cyclictest3078151-21ls22:45:134
2958820995517,19cyclictest3116835-21diskstats23:55:134
2958820995514,19cyclictest3038159-21mailstats21:30:214
2958820995437,0cyclictest0-21swapper/400:04:384
2958820995436,18cyclictest601ktimers/423:28:164
2958820995436,0cyclictest0-21swapper/421:52:334
2958820995435,0cyclictest0-21swapper/421:29:574
2958820995417,19cyclictest1-21systemd19:10:024
2958816995435,19cyclictest221rcuc/021:10:160
2958823995314,39cyclictest0-21swapper/723:25:157
2958820995335,18cyclictest0-21swapper/420:19:544
2958821995214,19cyclictest0-21swapper/522:30:175
2958820995234,18cyclictest3026959-21ntpq21:10:214
2958820995213,39cyclictest3060699-21kworker/u32:3+flush-8:022:23:554
2958820995213,19cyclictest0-21swapper/422:17:404
2958820995212,21cyclictest0-21swapper/419:51:074
2958819995213,20cyclictest0-21swapper/300:30:153
2958820995112,19cyclictest0-21swapper/423:53:484
2958819995112,39cyclictest0-21swapper/319:10:143
2958818995113,19cyclictest0-21swapper/220:10:162
2958820995011,20cyclictest3054421-21sed22:00:194
2958820995011,20cyclictest0-21swapper/420:12:254
295882399496,40cyclictest2952989-21kworker/7:219:25:147
2958822994911,19cyclictest0-21swapper/619:30:166
2958822994911,19cyclictest0-21swapper/600:30:156
2958822994910,39cyclictest0-21swapper/621:45:136
2958820994931,18cyclictest0-21swapper/419:48:204
2958820994911,19cyclictest0-21swapper/400:08:394
2958820994910,39cyclictest0-21swapper/422:34:044
2958820994910,19cyclictest0-21swapper/423:05:554
2958816994911,19cyclictest0-21swapper/021:25:160
295882099489,19cyclictest0-21swapper/423:48:364
2958820994830,18cyclictest0-21swapper/420:58:484
2958820994829,19cyclictest0-21swapper/422:55:514
2958820994829,19cyclictest0-21swapper/420:27:214
295881999489,39cyclictest0-21swapper/319:45:163
295881699489,39cyclictest0-21swapper/020:10:150
2958816994810,19cyclictest0-21swapper/022:20:170
2958820994728,19cyclictest0-21swapper/421:56:564
2958820994728,19cyclictest0-21swapper/420:04:414
295881699479,19cyclictest0-21swapper/020:50:160
295882099468,19cyclictest0-21swapper/419:31:364
295882099466,39cyclictest0-21swapper/421:07:414
2958820994627,19cyclictest0-21swapper/423:21:074
295881699469,19cyclictest0-21swapper/022:55:160
295882099456,39cyclictest0-21swapper/419:19:594
295882099456,19cyclictest0-21swapper/423:04:084
2958820994527,18cyclictest236199-21snmpd19:26:474
295881699456,39cyclictest0-21swapper/022:30:160
295882399447,19cyclictest0-21swapper/719:45:167
295882099446,19cyclictest0-21swapper/420:09:464
295882099445,39cyclictest0-21swapper/423:15:234
295882099443,39cyclictest0-21swapper/419:55:144
2958823994324,19cyclictest2972463-21kworker/1:119:55:157
295881899435,19cyclictest0-21swapper/222:20:182
2958818994325,18cyclictest0-21swapper/219:15:152
295882099424,19cyclictest0-21swapper/421:45:144
295882099412,39cyclictest0-21swapper/421:20:204
2958820994123,18cyclictest0-21swapper/419:44:004
295882099410,19cyclictest2961076-21users19:10:224
295881799412,19cyclictest0-21swapper/121:00:151
295882299401,19cyclictest0-21swapper/620:45:156
2958820994022,18cyclictest0-21swapper/400:11:124
295881899402,19cyclictest0-21swapper/219:50:142
295882299391,19cyclictest0-21swapper/623:10:146
2958820993920,19cyclictest3044449-21systemd-run21:44:594
2958819993921,18cyclictest0-21swapper/322:05:153
2958817993938,1cyclictest3060699-21kworker/u32:3-flush-8:022:45:181
2958817993938,1cyclictest3060699-21kworker/u32:3-flush-8:022:45:171
295881699390,0cyclictest191rcu_preempt00:15:160
295882099380,17cyclictest0-21swapper/420:45:024
295881999380,38cyclictest511ktimers/322:45:183
295881999380,38cyclictest511ktimers/322:45:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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