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2025-11-06 - 06:13
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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 Thu Nov 06, 2025 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134791224157,22phc2sys0-21swapper/319:08:103
326042206171,23sleep00-21swapper/019:06:060
3012202167,23sleep10-21swapper/119:08:151
326062201165,24sleep20-21swapper/219:06:082
78121420,5sleep275799cyclictest21:15:312
394421170,4sleep175699cyclictest22:30:121
757996931,6cyclictest33-21ksoftirqd/222:55:002
757996833,6cyclictest33-21ksoftirqd/221:30:012
757996526,4cyclictest33-21ksoftirqd/223:00:202
757996332,4cyclictest33-21ksoftirqd/200:35:302
757996332,4cyclictest33-21ksoftirqd/200:35:302
757996327,8cyclictest33-21ksoftirqd/223:20:012
757996029,6cyclictest33-21ksoftirqd/220:25:192
757996021,6cyclictest33-21ksoftirqd/221:55:002
757995931,7cyclictest33-21ksoftirqd/219:10:192
757995930,7cyclictest33-21ksoftirqd/223:20:222
757995930,3cyclictest33-21ksoftirqd/221:35:232
757995929,7cyclictest33-21ksoftirqd/223:25:262
757995929,3cyclictest33-21ksoftirqd/222:20:012
757995928,6cyclictest33-21ksoftirqd/220:35:002
757995927,4cyclictest33-21ksoftirqd/220:40:212
757995924,6cyclictest33-21ksoftirqd/222:00:232
757995825,6cyclictest33-21ksoftirqd/220:35:172
757995825,6cyclictest33-21ksoftirqd/200:25:272
757995822,5cyclictest33-21ksoftirqd/220:10:002
757995820,6cyclictest33-21ksoftirqd/220:20:132
757995727,4cyclictest33-21ksoftirqd/200:20:162
757995725,5cyclictest33-21ksoftirqd/221:05:232
757995725,5cyclictest33-21ksoftirqd/219:35:122
757995725,4cyclictest33-21ksoftirqd/222:30:122
757995725,4cyclictest33-21ksoftirqd/219:40:212
757995723,7cyclictest33-21ksoftirqd/222:45:182
757995628,7cyclictest33-21ksoftirqd/222:25:142
757995628,3cyclictest33-21ksoftirqd/222:35:232
757995624,6cyclictest33-21ksoftirqd/222:55:192
757995622,6cyclictest33-21ksoftirqd/222:10:252
134991560,1ptp4l401ktimersoftd/323:36:393
757995527,6cyclictest33-21ksoftirqd/222:05:152
757995525,4cyclictest33-21ksoftirqd/200:30:142
757995524,4cyclictest33-21ksoftirqd/223:30:202
757995522,5cyclictest33-21ksoftirqd/220:45:252
757995522,4cyclictest33-21ksoftirqd/223:05:202
757995521,6cyclictest33-21ksoftirqd/200:15:152
757995425,4cyclictest33-21ksoftirqd/220:15:242
757995424,8cyclictest33-21ksoftirqd/222:40:192
757995423,6cyclictest33-21ksoftirqd/221:20:272
757995423,5cyclictest33-21ksoftirqd/219:15:172
757995423,4cyclictest33-21ksoftirqd/222:20:122
757995423,4cyclictest33-21ksoftirqd/200:00:212
757995422,4cyclictest33-21ksoftirqd/221:45:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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