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2026-05-17 - 07:54
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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 50 highest latencies:
System rackdslot4.osadl.org (updated Sun May 17, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
325572203169,23sleep30-21swapper/319:09:303
324432201167,23sleep10-21swapper/119:07:591
323172201168,22sleep20-21swapper/219:06:282
324472198166,21sleep00-21swapper/019:08:020
2898521440,7sleep344299cyclictest20:05:173
3260029167,13sleep20-21swapper/219:10:002
138491690,1ptp4l401ktimersoftd/323:40:213
317892640,2sleep10-21swapper/120:10:161
222652620,3sleep319352-21apache219:50:253
440995831,7cyclictest25-21ksoftirqd/122:59:591
440995629,3cyclictest25-21ksoftirqd/123:25:211
440995626,4cyclictest25-21ksoftirqd/119:30:301
440995625,7cyclictest25-21ksoftirqd/123:00:001
440995624,4cyclictest25-21ksoftirqd/123:40:221
440995620,4cyclictest25-21ksoftirqd/121:40:241
440995525,3cyclictest25-21ksoftirqd/122:25:281
440995520,4cyclictest25-21ksoftirqd/121:30:141
440995425,4cyclictest25-21ksoftirqd/120:15:121
440995422,8cyclictest25-21ksoftirqd/121:00:221
440995422,4cyclictest25-21ksoftirqd/122:00:211
440995420,3cyclictest25-21ksoftirqd/123:20:231
440995414,7cyclictest25-21ksoftirqd/122:35:251
440995414,7cyclictest25-21ksoftirqd/120:55:231
440995413,8cyclictest25-21ksoftirqd/123:10:231
440995413,8cyclictest25-21ksoftirqd/123:10:231
440995413,7cyclictest25-21ksoftirqd/122:10:231
440995326,3cyclictest25-21ksoftirqd/123:15:231
440995323,3cyclictest25-21ksoftirqd/119:45:181
440995314,7cyclictest25-21ksoftirqd/119:55:261
440995314,7cyclictest25-21ksoftirqd/100:00:191
440995313,7cyclictest25-21ksoftirqd/122:05:151
44099525,8cyclictest25-21ksoftirqd/119:25:011
440995224,3cyclictest25-21ksoftirqd/122:25:011
440995219,4cyclictest25-21ksoftirqd/120:30:261
440995218,3cyclictest25-21ksoftirqd/122:45:221
44099518,9cyclictest25-21ksoftirqd/121:45:161
440995124,6cyclictest25-21ksoftirqd/120:25:261
440995124,5cyclictest25-21ksoftirqd/122:15:231
440995123,3cyclictest25-21ksoftirqd/119:50:341
440995121,6cyclictest25-21ksoftirqd/100:20:011
440995118,9cyclictest25-21ksoftirqd/122:50:201
440995118,3cyclictest25-21ksoftirqd/121:50:131
440995117,4cyclictest25-21ksoftirqd/122:40:411
440995117,4cyclictest25-21ksoftirqd/122:40:411
440995117,3cyclictest25-21ksoftirqd/120:00:211
440995117,3cyclictest25-21ksoftirqd/100:05:221
440995116,7cyclictest25-21ksoftirqd/123:45:131
440995114,10cyclictest25-21ksoftirqd/121:05:211
440995111,8cyclictest25-21ksoftirqd/121:10:271
440995025,6cyclictest25-21ksoftirqd/121:55:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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