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2026-05-21 - 17:22
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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 Thu May 21, 2026 12:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2317814999173,18cyclictest0-21swapper/312:16:293
231781499790,40cyclictest2386677-21/usr/sbin/munin09:15:213
2317814997517,39cyclictest2374683-21grep08:50:233
2317814997474,0cyclictest2357591-21ntpq08:20:173
2317814997436,19cyclictest2352411-21mailstats08:10:213
2317814997214,39cyclictest2494959-21ntp_states12:30:223
2317814997214,39cyclictest2325910-21munin-run07:24:593
2317814997113,39cyclictest2343630-21irqstats07:55:183
2317814997031,19cyclictest2416885-21cpu10:10:113
2317814996950,18cyclictest0-21swapper/307:35:103
2317814996810,39cyclictest2430455-21munin-run10:35:023
2317814996710,38cyclictest0-21swapper/312:12:243
231781499667,58cyclictest2345465-21kworker/u32:5+events_unbound08:05:103
2317814996648,18cyclictest52-21ksoftirqd/307:13:023
2317814996628,38cyclictest0-21swapper/308:46:223
231781499646,39cyclictest2345465-21kworker/u32:5+events_unbound10:44:463
231781499635,39cyclictest2419678-21kworker/u32:1+events_unbound10:53:103
231781499635,20cyclictest877-21mta-sts-daemon11:57:083
2317814996325,38cyclictest52-21ksoftirqd/310:27:293
2317814996325,38cyclictest0-21swapper/311:18:463
2317814996243,19cyclictest148-21hwrng07:34:573
2317814996023,19cyclictest2334548-21kworker/u32:2+events_unbound08:25:063
231781499570,38cyclictest2328654-21basename07:30:003
231781499560,37cyclictest2415921-21taskset10:05:263
2317814995516,39cyclictest2317810-21cyclictest09:52:173
2317814995435,19cyclictest2492130-21ntpq12:25:183
2317814995419,35cyclictest0-21swapper/311:24:533
2317814995419,15cyclictest0-21swapper/309:44:213
2317814995419,15cyclictest0-21swapper/309:03:063
2317814995334,19cyclictest875-21mta-sts-daemon11:06:123
2317814995315,19cyclictest2438911-21munin-run10:50:013
2317814995314,39cyclictest0-21swapper/311:46:223
2317814995314,39cyclictest0-21swapper/311:38:583
2317814995314,39cyclictest0-21swapper/311:01:063
2317814995314,39cyclictest0-21swapper/310:55:583
2317814995314,39cyclictest0-21swapper/310:22:583
2317814995314,39cyclictest0-21swapper/309:47:463
2317814995314,39cyclictest0-21swapper/309:37:163
2317814995314,39cyclictest0-21swapper/309:13:583
2317814995314,39cyclictest0-21swapper/309:06:173
2317814995314,39cyclictest0-21swapper/308:58:043
2317814995314,39cyclictest0-21swapper/308:15:343
2317814995314,39cyclictest0-21swapper/308:00:113
2317814995314,39cyclictest0-21swapper/307:18:303
2317814995313,39cyclictest2420885-21ntpq10:15:203
2317818995232,19cyclictest0-21swapper/709:20:167
2317814995234,18cyclictest511ktimers/311:29:063
2317814995233,19cyclictest0-21swapper/312:21:223
2317814995233,19cyclictest0-21swapper/309:30:583
2317814995233,19cyclictest0-21swapper/309:28:093
2317814995233,0cyclictest0-21swapper/311:40:013
2317814995214,38cyclictest0-21swapper/308:41:453
2317814995213,39cyclictest0-21swapper/312:35:543
2317814995213,39cyclictest0-21swapper/312:35:533
2317814995213,39cyclictest0-21swapper/311:13:253
2317814995213,39cyclictest0-21swapper/310:37:173
2317814995213,39cyclictest0-21swapper/309:59:583
2317814995213,39cyclictest0-21swapper/307:50:373
2317814995213,39cyclictest0-21swapper/307:46:083
2317814995212,39cyclictest0-21swapper/308:34:303
2317811995214,19cyclictest1086-21runrttasks12:15:160
2317814995118,14cyclictest0-21swapper/309:20:183
2317814995113,38cyclictest0-21swapper/312:07:373
2317814995112,39cyclictest0-21swapper/312:00:043
2317814995112,39cyclictest0-21swapper/311:53:453
2317814995112,39cyclictest0-21swapper/307:40:293
2317813995113,19cyclictest0-21swapper/208:20:152
2317814995011,39cyclictest0-21swapper/308:36:383
2317814995011,39cyclictest0-21swapper/308:36:373
2317814994931,18cyclictest0-21swapper/311:34:333
2317814994912,19cyclictest90650irq/68-eno6-TxRx-607:10:023
231781499489,39cyclictest0-21swapper/310:03:293
2317816994710,18cyclictest236199-21snmpd09:24:435
231781399478,39cyclictest0-21swapper/212:30:172
2317818994626,19cyclictest872-21mta-sts-daemon11:40:157
231781599446,19cyclictest0-21swapper/411:00:154
231781899434,39cyclictest0-21swapper/708:40:157
231781599435,19cyclictest0-21swapper/410:20:174
231781199435,19cyclictest0-21swapper/007:15:160
2317815994242,0cyclictest0-21swapper/407:15:164
2317811994223,19cyclictest221rcuc/007:50:150
231781899402,19cyclictest0-21swapper/709:30:167
231781799402,19cyclictest0-21swapper/607:10:156
231781599402,19cyclictest0-21swapper/410:40:144
231781799390,19cyclictest0-21swapper/611:15:166
231781799390,19cyclictest0-21swapper/608:00:156
2317813993937,2cyclictest875-21mta-sts-daemon09:24:092
2317818993837,1cyclictest877-21mta-sts-daemon09:35:157
231781799380,19cyclictest0-21swapper/611:10:146
231781799380,19cyclictest0-21swapper/610:05:176
231781799380,19cyclictest0-21swapper/609:15:166
231781599380,19cyclictest0-21swapper/412:10:164
2317811993820,0cyclictest0-21swapper/008:45:170
2317811993819,19cyclictest0-21swapper/011:00:150
2317818993737,0cyclictest2392063-21kworker/7:2+events12:32:187
2317818993737,0cyclictest2392063-21kworker/7:2+events11:14:587
2317818993737,0cyclictest1823691-21kworker/7:1+events07:35:537
2317818993736,0cyclictest2392063-21kworker/7:2+events11:50:337
231781899370,18cyclictest0-21swapper/710:55:147
231781599370,18cyclictest0-21swapper/408:05:154
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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