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2025-11-11 - 09:28
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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 Tue Nov 11, 2025 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
671085997233,19cyclictest0-21swapper/400:07:444
67108599679,39cyclictest725148-21/usr/sbin/munin20:45:024
671085996427,19cyclictest876-21mta-sts-daemon21:01:384
67108599634,39cyclictest814221-21ld23:20:204
671085996225,19cyclictest362-21jbd2/sda2-800:15:404
671085995717,19cyclictest684293-21ntpq19:30:244
671085995716,19cyclictest754774-21ntpq21:35:224
671085995516,19cyclictest715441-21ntpq20:25:204
671085995516,19cyclictest1089-21snmpd21:27:184
671085995515,19cyclictest778-21dbus-daemon20:20:024
671085995515,19cyclictest695729-21ntpq19:50:244
671081995536,19cyclictest648200-21kworker/u32:1+flush-8:019:19:490
671085995416,19cyclictest849361-21munin-run00:25:024
671085995416,19cyclictest818446-21munin-run23:30:024
671081995434,20cyclictest16-21ksoftirqd/022:02:010
671085995319,15cyclictest0-21swapper/423:12:564
671085995315,0cyclictest6939422sleep419:49:524
671085995314,39cyclictest0-21swapper/422:50:484
671085995314,39cyclictest0-21swapper/421:40:184
671085995314,20cyclictest776122-21/usr/sbin/munin22:15:244
671085995314,19cyclictest712630-21ntpq20:20:224
671085995314,19cyclictest0-21swapper/422:00:164
671085995313,40cyclictest850828-21ntpq00:25:224
67108599530,34cyclictest0-21swapper/423:46:484
671082995314,19cyclictest0-21swapper/119:15:191
671081995334,19cyclictest0-21swapper/022:32:030
671085995233,19cyclictest0-21swapper/422:34:004
671085995233,19cyclictest0-21swapper/422:21:504
671085995233,19cyclictest0-21swapper/420:57:204
671085995233,19cyclictest0-21swapper/420:49:204
671085995232,19cyclictest0-21swapper/422:27:584
671085995214,19cyclictest3389514-21systemd-journal00:33:394
671085995214,19cyclictest0-21swapper/419:26:304
671085995214,19cyclictest0-21swapper/400:35:514
671085995213,39cyclictest0-21swapper/420:10:384
671081995234,18cyclictest0-21swapper/022:50:050
671081995233,19cyclictest0-21swapper/020:19:530
671085995133,18cyclictest0-21swapper/423:59:244
671085995133,18cyclictest0-21swapper/423:51:524
671085995133,18cyclictest0-21swapper/422:38:304
671085995133,18cyclictest0-21swapper/421:52:424
671085995133,18cyclictest0-21swapper/421:16:544
671085995133,18cyclictest0-21swapper/421:13:004
671085995133,18cyclictest0-21swapper/421:05:504
671085995133,18cyclictest0-21swapper/419:57:564
671085995133,18cyclictest0-21swapper/419:13:164
671085995133,18cyclictest0-21swapper/400:13:564
671085995132,19cyclictest0-21swapper/419:40:384
671084995113,19cyclictest0-21swapper/319:30:193
671081995132,19cyclictest744974-21kworker/u32:4+events_unbound22:20:020
671081995113,19cyclictest0-21swapper/022:35:200
671088995011,39cyclictest0-21swapper/722:10:157
671088995011,20cyclictest0-21swapper/722:15:187
671087995031,19cyclictest0-21swapper/621:40:186
671087995012,19cyclictest0-21swapper/621:15:156
671085995032,18cyclictest0-21swapper/423:37:424
671085995032,18cyclictest0-21swapper/420:07:244
671085995031,19cyclictest0-21swapper/423:00:264
671085995011,20cyclictest765753-21cat21:55:164
671085995010,39cyclictest0-21swapper/422:45:204
671082995029,19cyclictest191rcu_preempt20:10:161
671086994930,19cyclictest691ktimers/500:00:165
671084994930,19cyclictest0-21swapper/322:40:173
67108599489,39cyclictest601ktimers/423:08:584
67108599485,39cyclictest728426-21cut20:50:144
67108399489,20cyclictest0-21swapper/221:35:172
67108599476,19cyclictest819857-21ntpq23:30:204
671086994628,18cyclictest0-21swapper/522:25:195
67108599467,39cyclictest0-21swapper/423:16:084
67108599465,19cyclictest721006-21ntpq20:35:204
67108199468,19cyclictest730271-21kworker/0:1+ice21:25:180
67108799457,19cyclictest0-21swapper/623:55:166
67108799457,19cyclictest0-21swapper/623:45:176
67108799457,19cyclictest0-21swapper/622:30:186
67108599456,39cyclictest0-21swapper/419:15:184
67108599456,0cyclictest0-21swapper/421:35:024
67108599455,19cyclictest771832-21ntpq22:05:204
67108699447,18cyclictest0-21swapper/523:20:165
67108599445,39cyclictest0-21swapper/419:38:404
67108599435,19cyclictest0-21swapper/422:13:024
67108599434,39cyclictest0-21swapper/421:49:224
67108599430,40cyclictest702767-21systemctl20:05:024
67108499434,38cyclictest0-21swapper/322:10:153
67108299435,19cyclictest0-21swapper/121:20:181
67108899423,20cyclictest0-21swapper/721:20:177
671088994223,19cyclictest0-21swapper/722:20:187
67108299413,19cyclictest0-21swapper/120:55:181
67108899401,39cyclictest0-21swapper/700:05:177
67108599401,39cyclictest0-21swapper/422:40:204
671081994022,18cyclictest0-21swapper/022:55:170
671085993919,20cyclictest0-21swapper/423:43:284
67108599390,39cyclictest0-21swapper/419:20:064
67108599390,19cyclictest0-21swapper/400:00:184
671085993820,18cyclictest0-21swapper/421:20:404
671085993819,19cyclictest601ktimers/422:56:124
67108399380,19cyclictest0-21swapper/223:40:172
67108399380,18cyclictest0-21swapper/222:45:142
67108299380,19cyclictest0-21swapper/123:45:181
671088993718,19cyclictest0-21swapper/723:25:257
67108799370,37cyclictest0-21swapper/622:40:176
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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