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2026-04-04 - 07:52
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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 50 highest latencies:
System rack5slot2.osadl.org (updated Sat Apr 04, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202482194178,11sleep10-21swapper/119:09:201
200402190173,12sleep00-21swapper/019:06:370
202402186170,12sleep30-21swapper/319:09:143
200272172155,13sleep20-21swapper/219:06:282
286112670,0sleep20-21swapper/222:18:482
230382480,0sleep223037-21aten2_r5power_e23:35:102
321182450,0sleep10-21swapper/123:07:381
9982440,0sleep10-21swapper/121:49:441
66912430,0sleep20-21swapper/223:42:392
26762420,0sleep30-21swapper/322:21:293
2047999100,7cyclictest8796-21taskset19:48:530
2047999100,6cyclictest8540-21sshd20:51:140
204799990,8cyclictest29612-21apt-get22:35:120
204799990,8cyclictest28699-21latency_hist20:30:010
204799990,8cyclictest10619-21apt-get22:10:130
204799990,6cyclictest8057-21chrt23:43:280
204799990,6cyclictest29502-21df19:25:120
204799990,6cyclictest25978-21chrt19:19:060
204799990,6cyclictest22426-21uptime19:10:210
204799990,6cyclictest16277-21diskmemload22:21:020
204799990,6cyclictest14618-21diskstats20:00:130
204799990,6cyclictest14618-21diskstats20:00:130
204799990,6cyclictest11188-21chrt19:52:530
204799990,5cyclictest25953-21sh22:33:050
204799990,5cyclictest16277-21diskmemload21:41:170
18940290,0sleep218937-21ssh22:30:012
204799980,8cyclictest1215-21idleruntime-cro20:39:590
204799980,7cyclictest8179-21grep22:40:150
204799980,7cyclictest7908-21rm00:30:330
204799980,7cyclictest4050-21apt-get23:10:110
204799980,7cyclictest29625-21apt-get00:10:090
204799980,7cyclictest27779-21cut23:05:190
204799980,7cyclictest23996-21apt-get20:20:120
204799980,7cyclictest22028-21diskstats20:15:120
204799980,7cyclictest20948-21ntp_states00:05:180
204799980,7cyclictest19023-21apt-get20:10:100
204799980,7cyclictest19006-21munin-run00:05:000
204799980,7cyclictest15991-21apt-get23:00:120
204799980,6cyclictest8474-21ssh21:53:020
204799980,6cyclictest3560-21ssh22:06:020
204799980,6cyclictest22283-21ssh22:46:510
204799980,6cyclictest12038-21sh21:55:030
204799980,5cyclictest6282-21taskset20:49:000
204799980,5cyclictest4603-21ssh21:35:150
204799980,5cyclictest3716-21rm00:29:140
204799980,5cyclictest29474-21forks20:30:130
204799980,5cyclictest2915-21taskset22:53:350
204799980,5cyclictest28593-21sh23:37:290
204799980,5cyclictest28514-21taskset19:24:440
204799980,5cyclictest2801-21ssh21:34:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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