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2026-04-02 - 13:10
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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 Thu Apr 02, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89602307276,21sleep10-21swapper/119:05:521
89462293267,17sleep20-21swapper/219:05:422
90432272239,22sleep00-21swapper/019:06:570
89832263238,16sleep30-21swapper/319:06:123
12952670,0sleep20-21swapper/200:06:382
40462640,0sleep10-21swapper/121:51:031
213272630,0sleep10-21swapper/121:42:051
69772620,0sleep10-21swapper/122:31:581
83832570,0sleep30-21swapper/322:33:063
13742570,0sleep00-21swapper/023:08:140
66272560,0sleep00-21swapper/000:30:110
310712560,0sleep20-21swapper/223:06:082
313052550,0sleep10-21swapper/123:06:191
265862520,0sleep20-21swapper/222:44:262
280462200,0sleep30-21swapper/300:23:133
258562190,0sleep00-21swapper/023:03:300
57202180,0sleep10-21swapper/123:30:161
101022150,0sleep30-21swapper/300:12:043
9402991412,1cyclictest22-21ksoftirqd/100:40:001
214282140,0sleep20-21swapper/223:40:102
940299125,2cyclictest141rcu_preempt19:40:111
9402991210,1cyclictest22-21ksoftirqd/120:00:011
192982120,0sleep30-21swapper/320:40:173
940299109,1cyclictest22-21ksoftirqd/122:20:011
940299109,1cyclictest22-21ksoftirqd/100:00:011
940299107,2cyclictest22-21ksoftirqd/119:15:011
88252100,0sleep122-21ksoftirqd/121:35:011
94029998,1cyclictest22-21ksoftirqd/122:50:011
94029988,0cyclictest221ksoftirqd/122:45:011
94029987,1cyclictest22-21ksoftirqd/123:50:011
94029987,1cyclictest22-21ksoftirqd/119:15:011
94029987,1cyclictest22-21ksoftirqd/100:10:011
94029986,2cyclictest22-21ksoftirqd/123:10:111
94029985,2cyclictest658-21snmpd00:23:501
94029985,2cyclictest5177-21ssh00:29:121
94029985,2cyclictest23072-21chrt23:40:311
94029983,3cyclictest275-21systemd-journal20:40:591
94029981,1cyclictest141rcu_preempt20:05:131
94029980,7cyclictest0-21swapper/122:35:111
93989987,1cyclictest12-21ksoftirqd/022:00:010
93989984,1cyclictest22425-21munin-run20:50:000
93989981,4cyclictest20649-21dump-pmu-power23:40:010
4810280,0sleep10-21swapper/121:32:031
27500280,0sleep30-21swapper/322:25:133
26479280,0sleep30-21swapper/322:24:493
13143280,1sleep213139-21ssh22:55:192
94099977,0cyclictest0-21swapper/322:35:193
94099975,2cyclictest34-21ksoftirqd/319:40:013
94099974,2cyclictest27029-21sshd20:58:283
94099973,3cyclictest31219-21sed21:05:193
94099973,3cyclictest304-21systemd-udevd19:48:363
94099973,3cyclictest304-21systemd-udevd19:22:363
94099973,3cyclictest29752-21date23:05:193
94099973,3cyclictest21067-21smartctl20:45:133
94099973,3cyclictest16952-21ls21:20:123
94099973,3cyclictest13427-21ntpq19:15:173
94099973,3cyclictest1-21systemd21:34:063
94099973,3cyclictest11335-21date20:25:003
94099972,3cyclictest304-21systemd-udevd19:40:363
94099972,3cyclictest275-21systemd-journal19:54:433
94099972,1cyclictest50850irq/136-enp4s0-23:50:123
94099970,1cyclictest9076-21sh22:53:143
94079976,1cyclictest28-21ksoftirqd/220:50:002
94079973,3cyclictest658-21snmpd20:54:062
94079973,3cyclictest560-21gdbus22:00:012
94079970,6cyclictest304-21systemd-udevd23:45:342
94079970,1cyclictest0-21swapper/222:07:122
94029977,0cyclictest221ksoftirqd/100:05:011
94029976,1cyclictest22-21ksoftirqd/121:20:001
94029976,1cyclictest22-21ksoftirqd/120:50:001
94029976,1cyclictest22-21ksoftirqd/120:20:011
94029976,1cyclictest22-21ksoftirqd/119:50:011
94029976,1cyclictest22-21ksoftirqd/119:30:011
94029975,2cyclictest22-21ksoftirqd/123:20:111
94029975,2cyclictest22-21ksoftirqd/122:30:001
94029975,2cyclictest22-21ksoftirqd/122:00:121
94029973,3cyclictest658-21snmpd21:22:261
94029973,1cyclictest141rcu_preempt20:10:101
94029972,4cyclictest504-11dbus-daemon22:54:391
94029970,4cyclictest915-21dump-pmu-power21:50:011
94029970,4cyclictest22-21ksoftirqd/100:16:451
93989976,1cyclictest12-21ksoftirqd/021:24:590
93989973,3cyclictest275-21systemd-journal22:25:490
93989973,3cyclictest275-21systemd-journal21:50:250
16792270,0sleep30-21swapper/321:39:593
9458260,0sleep00-21swapper/023:13:070
94099964,1cyclictest0-21swapper/320:35:133
94099963,2cyclictest658-21snmpd22:47:203
94099963,2cyclictest658-21snmpd20:10:083
94099963,2cyclictest658-21snmpd00:07:583
94099963,2cyclictest504-21dbus-daemon23:31:463
94099963,2cyclictest4716-21http23:50:013
94099963,2cyclictest31971-21taskset21:29:263
94099963,2cyclictest304-21systemd-udevd19:14:353
94099963,2cyclictest304-21systemd-udevd00:39:353
94099963,2cyclictest29476-21smartctl23:25:133
94099963,2cyclictest27594-21ntp_kernel_err22:05:183
94099963,2cyclictest275-21systemd-journal23:35:313
94099963,2cyclictest24438-21ssh23:41:333
94099963,2cyclictest18488-21seq19:25:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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