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2026-03-29 - 11:33
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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
Characteristics of the 100 highest latencies:
System rackdslot4.osadl.org (updated Sun Mar 29, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149812205171,23sleep30-21swapper/319:09:543
147092203170,23sleep10-21swapper/119:06:281
147102199167,21sleep20-21swapper/219:06:282
148132196163,23sleep00-21swapper/019:07:420
1881921480,5sleep01528199cyclictest19:15:200
15283997221,8cyclictest33-21ksoftirqd/219:15:252
15283997130,11cyclictest33-21ksoftirqd/200:15:192
15283997025,12cyclictest33-21ksoftirqd/223:45:002
138491700,1ptp4l10334-21/usr/sbin/munin22:15:273
15283996928,10cyclictest33-21ksoftirqd/223:35:002
15283996923,9cyclictest33-21ksoftirqd/223:54:592
15283996832,9cyclictest33-21ksoftirqd/220:20:182
15283996729,12cyclictest33-21ksoftirqd/223:20:002
15283996729,12cyclictest33-21ksoftirqd/223:20:002
15283996630,5cyclictest33-21ksoftirqd/222:35:012
15283996629,4cyclictest33-21ksoftirqd/221:20:002
15283996627,13cyclictest33-21ksoftirqd/222:05:182
15283996530,11cyclictest33-21ksoftirqd/222:00:182
15283996528,11cyclictest33-21ksoftirqd/221:35:192
15283996527,9cyclictest33-21ksoftirqd/220:15:012
15283996526,11cyclictest33-21ksoftirqd/221:30:012
15283996428,9cyclictest33-21ksoftirqd/221:55:192
15283996428,10cyclictest33-21ksoftirqd/220:00:192
15283996427,5cyclictest33-21ksoftirqd/223:35:202
15283996328,11cyclictest33-21ksoftirqd/222:25:002
15283996326,10cyclictest33-21ksoftirqd/220:50:182
15283996325,10cyclictest33-21ksoftirqd/221:30:012
15283996320,9cyclictest33-21ksoftirqd/220:30:192
15284996223,3cyclictest41-21ksoftirqd/320:05:003
15283996226,9cyclictest33-21ksoftirqd/222:40:262
15283996226,11cyclictest33-21ksoftirqd/223:49:592
15283996225,11cyclictest33-21ksoftirqd/219:25:192
15283996225,10cyclictest33-21ksoftirqd/200:10:192
15283996224,5cyclictest33-21ksoftirqd/220:05:182
15283996127,12cyclictest33-21ksoftirqd/222:45:182
15283996125,11cyclictest33-21ksoftirqd/200:30:192
15283996123,6cyclictest33-21ksoftirqd/219:45:282
15283996123,10cyclictest33-21ksoftirqd/223:05:002
15283996122,12cyclictest33-21ksoftirqd/222:55:142
15283996113,9cyclictest33-21ksoftirqd/223:25:122
15284996029,4cyclictest41-21ksoftirqd/323:30:013
15283996028,4cyclictest33-21ksoftirqd/200:35:162
15283996027,12cyclictest33-21ksoftirqd/200:00:142
15283996026,4cyclictest33-21ksoftirqd/220:55:242
15283996025,10cyclictest33-21ksoftirqd/220:35:132
15283996019,4cyclictest33-21ksoftirqd/200:20:172
15283996017,4cyclictest33-21ksoftirqd/221:45:182
1528399599,10cyclictest33-21ksoftirqd/220:40:242
15283995927,4cyclictest33-21ksoftirqd/222:25:192
15283995921,9cyclictest33-21ksoftirqd/219:55:002
15283995915,8cyclictest33-21ksoftirqd/219:35:002
15281995924,5cyclictest9-21ksoftirqd/020:25:000
15281995924,4cyclictest9-21ksoftirqd/021:30:010
15281995923,4cyclictest9-21ksoftirqd/020:20:000
15281995919,7cyclictest9-21ksoftirqd/020:05:230
15283995821,11cyclictest33-21ksoftirqd/223:10:142
15283995820,5cyclictest33-21ksoftirqd/220:25:242
15283995819,10cyclictest33-21ksoftirqd/223:20:212
15281995828,4cyclictest9-21ksoftirqd/023:05:150
15281995827,4cyclictest9-21ksoftirqd/023:20:300
15281995827,4cyclictest9-21ksoftirqd/021:30:120
15281995826,5cyclictest9-21ksoftirqd/022:37:590
15281995824,4cyclictest9-21ksoftirqd/022:45:180
219792570,1sleep30-21swapper/323:40:243
15283995726,10cyclictest33-21ksoftirqd/222:35:192
15283995725,4cyclictest33-21ksoftirqd/219:10:122
15283995724,4cyclictest33-21ksoftirqd/219:35:312
15283995724,10cyclictest33-21ksoftirqd/219:40:122
15283995719,5cyclictest33-21ksoftirqd/221:45:012
15283995719,5cyclictest33-21ksoftirqd/221:00:172
15281995720,8cyclictest9-21ksoftirqd/021:20:160
15284995610,5cyclictest41-21ksoftirqd/322:05:003
1528399569,9cyclictest33-21ksoftirqd/222:10:132
15283995620,10cyclictest33-21ksoftirqd/200:05:272
15283995619,5cyclictest33-21ksoftirqd/222:50:182
15281995624,5cyclictest9-21ksoftirqd/020:55:200
15281995620,8cyclictest9-21ksoftirqd/021:00:280
15281995610,7cyclictest9-21ksoftirqd/023:55:200
15283995526,10cyclictest33-21ksoftirqd/223:55:152
15283995525,10cyclictest33-21ksoftirqd/220:45:132
15283995520,5cyclictest33-21ksoftirqd/222:20:002
15283995512,4cyclictest33-21ksoftirqd/221:10:182
1528299552,6cyclictest30458-21basename00:00:001
15281995527,6cyclictest9-21ksoftirqd/020:25:230
15281995524,4cyclictest9-21ksoftirqd/021:45:120
15281995524,4cyclictest9-21ksoftirqd/021:15:280
15281995519,7cyclictest9-21ksoftirqd/020:30:210
15283995422,5cyclictest33-21ksoftirqd/221:20:142
15283995420,4cyclictest33-21ksoftirqd/221:05:222
15283995418,9cyclictest33-21ksoftirqd/221:50:172
15283995411,10cyclictest33-21ksoftirqd/219:20:132
1528299543,7cyclictest29875-21grep19:40:011
1528199546,2cyclictest121rcu_preempt21:40:000
15281995423,5cyclictest9-21ksoftirqd/022:50:230
15281995423,4cyclictest9-21ksoftirqd/022:20:230
15281995422,5cyclictest9-21ksoftirqd/000:15:140
15281995416,7cyclictest9-21ksoftirqd/022:25:260
15284995315,5cyclictest41-21ksoftirqd/319:19:593
15283995316,10cyclictest33-21ksoftirqd/223:05:332
1528299532,5cyclictest241ktimersoftd/121:30:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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