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2026-05-30 - 11:06
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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 Sat May 30, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591208173,23phc2sys0-21swapper/319:06:313
193812204171,22sleep00-21swapper/019:09:050
191522203170,22sleep20-21swapper/219:06:142
192012201168,22sleep10-21swapper/119:06:451
1385918662,16phc2sys0-21swapper/319:10:013
138491680,1ptp4l401ktimersoftd/323:56:583
138491680,1ptp4l401ktimersoftd/323:56:583
138491680,1ptp4l401ktimersoftd/322:04:483
252162580,6sleep21974699cyclictest21:30:112
19746995828,7cyclictest33-21ksoftirqd/219:15:012
19746995620,6cyclictest33-21ksoftirqd/200:15:262
138491560,1ptp4l391rcuc/322:25:163
19746995525,8cyclictest33-21ksoftirqd/219:50:002
138491550,1ptp4l401ktimersoftd/319:15:453
19746995427,8cyclictest33-21ksoftirqd/221:40:012
19746995424,4cyclictest33-21ksoftirqd/222:35:152
19746995420,4cyclictest33-21ksoftirqd/220:55:012
19746995323,4cyclictest33-21ksoftirqd/221:00:002
19746995323,4cyclictest33-21ksoftirqd/219:15:242
138491530,8ptp4l401ktimersoftd/319:36:113
19746995223,7cyclictest33-21ksoftirqd/221:10:002
19746995222,7cyclictest33-21ksoftirqd/220:25:002
19746995220,4cyclictest33-21ksoftirqd/200:20:182
19746995215,5cyclictest33-21ksoftirqd/221:45:242
19746995211,6cyclictest33-21ksoftirqd/221:15:212
19746995139,3cyclictest33-21ksoftirqd/222:29:592
19746995122,7cyclictest33-21ksoftirqd/219:30:002
19746995121,5cyclictest33-21ksoftirqd/222:15:262
19746995121,3cyclictest33-21ksoftirqd/222:55:132
19746995121,3cyclictest33-21ksoftirqd/222:55:132
19746995117,4cyclictest33-21ksoftirqd/220:10:232
1974699507,6cyclictest33-21ksoftirqd/219:35:182
19746995024,6cyclictest33-21ksoftirqd/223:10:012
19746995023,4cyclictest33-21ksoftirqd/220:05:272
19746995021,7cyclictest33-21ksoftirqd/223:30:012
19746994923,6cyclictest33-21ksoftirqd/220:20:002
19746994922,6cyclictest33-21ksoftirqd/221:55:152
19746994921,7cyclictest33-21ksoftirqd/223:05:012
19746994919,4cyclictest33-21ksoftirqd/220:37:432
19746994918,3cyclictest33-21ksoftirqd/223:35:192
19746994918,3cyclictest33-21ksoftirqd/200:25:162
19746994918,3cyclictest33-21ksoftirqd/200:25:152
19746994915,6cyclictest33-21ksoftirqd/223:25:002
19746994914,8cyclictest33-21ksoftirqd/223:25:222
19746994914,6cyclictest33-21ksoftirqd/223:50:252
1974699486,7cyclictest33-21ksoftirqd/200:05:282
19746994822,6cyclictest33-21ksoftirqd/219:30:262
19746994818,4cyclictest33-21ksoftirqd/222:12:592
19746994818,4cyclictest33-21ksoftirqd/200:30:122
19746994815,4cyclictest33-21ksoftirqd/221:10:152
19744994814,5cyclictest9-21ksoftirqd/021:15:170
19746994718,6cyclictest33-21ksoftirqd/219:40:122
19746994717,3cyclictest33-21ksoftirqd/219:55:152
19746994714,6cyclictest33-21ksoftirqd/222:35:002
19746994714,4cyclictest33-21ksoftirqd/223:55:142
19746994714,4cyclictest33-21ksoftirqd/223:55:142
1974699471,3cyclictest33-21ksoftirqd/221:00:132
19746994618,4cyclictest33-21ksoftirqd/220:40:142
19746994616,7cyclictest33-21ksoftirqd/200:35:132
19746994614,4cyclictest33-21ksoftirqd/200:14:592
19746994611,6cyclictest33-21ksoftirqd/223:15:112
19746994611,4cyclictest33-21ksoftirqd/222:00:232
19746994517,3cyclictest33-21ksoftirqd/220:30:002
19746994516,7cyclictest33-21ksoftirqd/221:50:182
19746994516,3cyclictest33-21ksoftirqd/222:53:302
19746994515,5cyclictest33-21ksoftirqd/222:45:152
19746994514,9cyclictest33-21ksoftirqd/222:45:002
19746994514,4cyclictest33-21ksoftirqd/221:44:042
138491450,0ptp4l401ktimersoftd/300:05:273
1974699447,6cyclictest33-21ksoftirqd/221:20:232
19746994419,6cyclictest33-21ksoftirqd/219:50:182
19746994411,5cyclictest33-21ksoftirqd/223:40:022
19746994411,5cyclictest33-21ksoftirqd/220:45:242
138491440,0ptp4l401ktimersoftd/322:42:213
138491440,0ptp4l401ktimersoftd/321:58:583
19747994338,3cyclictest41-21ksoftirqd/323:40:113
19746994312,6cyclictest33-21ksoftirqd/223:45:122
1974699430,3cyclictest33-21ksoftirqd/220:30:232
1974699430,3cyclictest33-21ksoftirqd/220:30:222
138491430,1ptp4l401ktimersoftd/319:57:393
1974699428,4cyclictest33-21ksoftirqd/223:10:182
1974699424,3cyclictest121rcu_preempt21:25:142
19744994211,4cyclictest9-21ksoftirqd/023:45:170
19747994136,3cyclictest25468-21fschecks_count21:30:133
19745994135,3cyclictest29591-21cron22:44:591
138491410,0ptp4l401ktimersoftd/323:39:563
1974699409,8cyclictest33-21ksoftirqd/222:05:152
19746994022,4cyclictest33-21ksoftirqd/222:20:132
19745994034,3cyclictest25-21ksoftirqd/121:20:001
138491400,0ptp4l401ktimersoftd/321:05:023
19745993934,3cyclictest25-21ksoftirqd/123:14:591
19745993933,3cyclictest25-21ksoftirqd/121:05:001
1974499394,4cyclictest418-21in:imuxsock23:43:240
19744993934,3cyclictest9-21ksoftirqd/019:55:010
19744993934,3cyclictest9-21ksoftirqd/019:40:170
19744993934,3cyclictest2416-21basename00:00:010
19744993934,3cyclictest2416-21basename00:00:010
138491390,0ptp4l401ktimersoftd/323:24:453
138491390,0ptp4l401ktimersoftd/300:13:293
19747993822,13cyclictest2253-21sh21:50:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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