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2026-04-14 - 10:05
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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 Tue Apr 14, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
170642288264,14sleep20-21swapper/219:06:582
170732283257,17sleep10-21swapper/119:07:051
171852269210,49sleep00-21swapper/019:08:330
171942259227,22sleep30-21swapper/319:08:403
215602680,0sleep10-21swapper/121:56:511
7522580,0sleep30-21swapper/322:24:083
249702580,0sleep30-21swapper/320:35:163
148272580,0sleep10-21swapper/122:32:191
88652540,0sleep20-21swapper/221:30:002
100352480,0sleep00-21swapper/000:26:570
240472370,0sleep30-21swapper/322:38:013
225682200,0sleep20-21swapper/222:17:142
22732190,0sleep20-21swapper/222:44:412
170822190,0sleep30-21swapper/322:14:233
14262190,0sleep228-21ksoftirqd/221:45:072
101252190,0sleep20-21swapper/223:47:552
166622180,0sleep00-21swapper/021:15:010
115772180,0sleep30-21swapper/321:11:153
74672170,0sleep10-21swapper/122:47:201
297392170,0sleep10-21swapper/122:21:251
171382130,0sleep00-21swapper/023:12:500
17412991210,2cyclictest22-21ksoftirqd/119:15:011
1741499119,2cyclictest28-21ksoftirqd/221:55:012
17412991110,1cyclictest22-21ksoftirqd/123:50:001
17412991110,1cyclictest22-21ksoftirqd/100:25:011
1741299108,2cyclictest22-21ksoftirqd/123:40:001
1741299108,2cyclictest211rcuc/100:00:001
1741299108,1cyclictest22-21ksoftirqd/122:20:011
1741299108,1cyclictest22-21ksoftirqd/119:40:011
1741299107,2cyclictest22-21ksoftirqd/120:00:011
164712100,1sleep10-21swapper/100:30:351
30176290,0sleep20-21swapper/222:21:462
23461290,0sleep20-21swapper/223:35:502
174129998,1cyclictest22-21ksoftirqd/123:20:001
174129998,1cyclictest22-21ksoftirqd/121:55:011
174129998,1cyclictest22-21ksoftirqd/100:20:011
174129997,2cyclictest22-21ksoftirqd/121:00:001
174129997,2cyclictest22-21ksoftirqd/119:15:011
174129997,1cyclictest211rcuc/120:30:011
174129996,3cyclictest22-21ksoftirqd/100:00:011
174129991,5cyclictest22-21ksoftirqd/121:25:191
8710280,0chrt0-21swapper/200:06:292
31037280,0sleep20-21swapper/221:43:052
174179983,3cyclictest275-21systemd-journal21:02:043
174149982,1cyclictest141rcu_preempt19:45:012
174149980,2cyclictest18165-21ssh23:52:472
174129987,1cyclictest22-21ksoftirqd/123:45:001
174129987,1cyclictest22-21ksoftirqd/123:35:001
174129987,1cyclictest22-21ksoftirqd/120:50:001
174129987,1cyclictest22-21ksoftirqd/120:05:011
174129987,1cyclictest22-21ksoftirqd/119:55:011
174129986,1cyclictest22-21ksoftirqd/120:20:011
174129985,2cyclictest22-21ksoftirqd/100:10:011
174129983,3cyclictest22-21ksoftirqd/121:47:341
174129982,4cyclictest12359-21cron23:30:001
174129982,3cyclictest22-21ksoftirqd/119:45:201
174129981,5cyclictest22-21ksoftirqd/122:35:151
174129981,2cyclictest22-21ksoftirqd/121:30:011
23204270,0sleep30-21swapper/322:17:433
174179976,1cyclictest34-21ksoftirqd/323:20:003
174179973,3cyclictest658-21snmpd23:59:423
174179973,3cyclictest5680-21awk23:05:213
174179973,1cyclictest0-21swapper/300:07:253
174179972,3cyclictest275-21systemd-journal19:21:503
174149976,1cyclictest28-21ksoftirqd/222:50:002
174149976,1cyclictest28-21ksoftirqd/221:10:002
174149976,1cyclictest28-21ksoftirqd/220:55:002
174149974,2cyclictest28-21ksoftirqd/221:15:132
174149971,3cyclictest560-21gdbus20:40:012
174129976,1cyclictest22-21ksoftirqd/123:00:001
174129976,1cyclictest22-21ksoftirqd/122:30:011
174129976,1cyclictest22-21ksoftirqd/120:55:001
174129976,1cyclictest22-21ksoftirqd/119:30:011
174129974,1cyclictest22-21ksoftirqd/100:10:011
174129973,3cyclictest27807-21diskstats22:40:131
174129973,1cyclictest141rcu_preempt22:00:131
174129972,1cyclictest141rcu_preempt22:10:271
174129972,1cyclictest141rcu_preempt21:15:201
174129971,4cyclictest22-21ksoftirqd/123:09:561
174129971,4cyclictest22-21ksoftirqd/122:53:381
174129971,4cyclictest22-21ksoftirqd/122:05:561
174129970,5cyclictest25415-21ps20:35:191
174129970,4cyclictest26733-21grep21:20:201
174129970,3cyclictest116742rm21:11:201
174079975,1cyclictest12-21ksoftirqd/022:35:010
174079974,2cyclictest504-21dbus-daemon19:16:020
174079973,3cyclictest658-21snmpd21:36:070
174079973,3cyclictest12355-21cron23:30:000
174079973,2cyclictest19137-21latency_hist22:55:000
174079972,4cyclictest658-21snmpd21:12:330
174079972,4cyclictest504-21dbus-daemon21:59:440
174079972,2cyclictest26173-21plymouth22:20:010
8520260,0sleep30-21swapper/322:09:063
26982260,1sleep027190-21hddtemp_smartct20:40:140
174179966,0cyclictest17373-21ssh00:11:363
174179965,1cyclictest34-21ksoftirqd/321:00:003
174179965,1cyclictest0-21swapper/300:03:033
174179963,3cyclictest16949-21apt-get21:15:133
174179963,2cyclictest9060-21hwlatdetect20:00:153
174179963,2cyclictest7846-21ssh23:46:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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