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2026-04-26 - 16:10
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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 rackaslot8.osadl.org (updated Sun Apr 26, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137002300269,20sleep20-21swapper/207:07:082
139132272246,17sleep30-21swapper/307:09:393
137512269239,19sleep10-21swapper/107:07:481
136772264234,19sleep00-21swapper/007:06:500
110062630,3sleep012-21ksoftirqd/011:10:200
118462590,0sleep20-21swapper/210:32:022
217622550,0sleep00-21swapper/012:35:130
110412550,0sleep30-21swapper/311:50:113
47282530,1sleep00-21swapper/010:47:210
52682520,0sleep20-21swapper/212:25:152
93192210,0sleep00-21swapper/010:10:430
222722180,0sleep10-21swapper/107:25:171
174902170,0sleep10-21swapper/109:17:401
172282160,0sleep30-21swapper/308:25:173
14062160,0sleep20-21swapper/211:24:592
228172150,1sleep00-21swapper/011:17:570
1405199108,1cyclictest28-21ksoftirqd/210:10:012
1405199107,2cyclictest28-21ksoftirqd/207:15:012
140519998,1cyclictest28-21ksoftirqd/209:55:012
140519997,2cyclictest28-21ksoftirqd/211:10:012
140519992,4cyclictest3668-21awk09:10:012
8452280,0sleep10-21swapper/109:12:201
140519987,1cyclictest28-21ksoftirqd/210:45:012
140519986,1cyclictest28-21ksoftirqd/212:00:002
140519982,3cyclictest24724-21ssh11:00:012
140519981,1cyclictest141rcu_preempt10:20:102
140479980,7cyclictest36922chrt12:24:361
140439985,2cyclictest18846-21sh11:54:590
31222270,0sleep20-21swapper/209:25:262
140559973,3cyclictest658-21snmpd10:42:053
140559972,5cyclictest2036-21kworker/3:210:34:153
140519976,1cyclictest387-21idleruntime-cro07:50:002
140519976,1cyclictest28-21ksoftirqd/212:25:002
140519976,1cyclictest28-21ksoftirqd/210:30:012
140519976,1cyclictest28-21ksoftirqd/207:35:002
140519975,2cyclictest28-21ksoftirqd/211:35:002
140519975,2cyclictest28-21ksoftirqd/211:15:012
140519973,3cyclictest16473-21awk10:15:172
140519970,1cyclictest141rcu_preempt07:20:122
140479973,3cyclictest810-11brltty11:49:201
140479973,3cyclictest275-21systemd-journal10:15:011
140479973,3cyclictest275-21systemd-journal08:00:001
140479973,2cyclictest275-21systemd-journal08:28:041
140479972,3cyclictest504-21dbus-daemon07:20:011
140479970,4cyclictest28388-21dump-pmu-power07:40:001
140439974,2cyclictest275-21systemd-journal07:29:110
140439973,3cyclictest658-21snmpd10:26:550
140439973,3cyclictest560-21gdbus11:40:000
140439973,3cyclictest304-21systemd-udevd12:03:350
140439973,3cyclictest275-21systemd-journal08:41:290
140439973,3cyclictest2647-21cat11:25:150
140439972,3cyclictest275-21systemd-journal09:06:300
2510260,1sleep10-21swapper/110:26:121
140559966,0cyclictest0-21swapper/310:20:423
140559966,0cyclictest0-21swapper/309:53:253
140559964,1cyclictest34-21ksoftirqd/308:20:003
140559963,3cyclictest2036-21kworker/3:212:00:113
140559963,3cyclictest2036-21kworker/3:210:16:033
140559963,2cyclictest658-21snmpd10:35:013
140559963,2cyclictest6565-21ssh10:29:213
140559963,2cyclictest5246-21ssh11:45:563
140559963,2cyclictest30722-21rm11:41:593
140559963,2cyclictest275-21systemd-journal09:48:443
140559963,2cyclictest25312-21rm10:01:063
140559963,2cyclictest21499-21tr12:35:123
140559963,2cyclictest20783-21sh10:56:583
140559963,2cyclictest18354-21tail11:15:153
140559963,2cyclictest1660-21seq09:05:073
140559963,2cyclictest16240-21awk07:15:013
140559963,2cyclictest13417-21expr12:30:123
140559963,2cyclictest12644-21rm10:13:153
140559963,2cyclictest1-21systemd10:45:213
140559962,4cyclictest2036-21kworker/3:211:31:153
140559962,4cyclictest2036-21kworker/3:210:54:473
140559962,4cyclictest2036-21kworker/3:209:56:153
140559962,4cyclictest2036-21kworker/3:209:10:113
140559962,3cyclictest658-21snmpd11:37:303
140559962,3cyclictest658-21snmpd11:27:003
140559962,3cyclictest658-21snmpd10:05:243
140559962,3cyclictest658-21snmpd09:41:263
140559962,3cyclictest658-21snmpd09:38:503
140559962,3cyclictest658-21snmpd09:19:523
140559962,3cyclictest658-21snmpd09:02:583
140559962,3cyclictest658-21snmpd07:32:403
140559962,3cyclictest658-21snmpd07:20:373
140559962,3cyclictest30651-21cut08:55:173
140559962,3cyclictest275-21systemd-journal12:25:093
140559962,3cyclictest26159-21ntpq08:45:183
140559962,3cyclictest21396-21cat09:20:133
140559962,3cyclictest21032-21sed11:55:203
140559962,1cyclictest0-21swapper/312:16:543
140559962,1cyclictest0-21swapper/311:06:033
140559962,1cyclictest0-21swapper/311:01:443
140559962,1cyclictest0-21swapper/309:30:423
140559961,3cyclictest275-21systemd-journal12:20:163
140559961,3cyclictest275-21systemd-journal11:20:253
140559961,3cyclictest275-21systemd-journal09:26:053
140559960,5cyclictest3109-21ls07:55:133
140559960,0cyclictest0-21swapper/311:12:543
140559960,0cyclictest0-21swapper/307:15:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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