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2026-07-01 - 01:02
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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 Tue Jun 30, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
249962226162,21sleep20-21swapper/207:07:432
251592205171,22sleep30-21swapper/307:09:453
249232204170,22sleep10-21swapper/107:06:451
248642201167,23sleep00-21swapper/007:06:010
1385918561,15phc2sys0-21swapper/307:10:013
138491620,0ptp4l401ktimersoftd/310:17:413
159102600,2sleep20-21swapper/207:55:132
191282570,3sleep2321ktimersoftd/209:05:212
31702550,2sleep20-21swapper/207:30:022
138491530,1ptp4l401ktimersoftd/308:46:593
107742500,2sleep20-21swapper/209:55:152
263132490,4sleep326320-21irqrtprio09:20:183
25475994943,4cyclictest30156-21dump-pmu-power11:40:003
90472480,3sleep00-21swapper/009:50:200
25475994639,4cyclictest3614-21fschecks_count09:40:163
228932430,2sleep2311rcuc/212:30:012
138491430,1ptp4l401ktimersoftd/310:14:183
138491430,0ptp4l401ktimersoftd/309:47:033
138491430,0ptp4l401ktimersoftd/308:55:213
25475994212,4cyclictest41-21ksoftirqd/308:50:223
25474994230,10cyclictest33-21ksoftirqd/211:27:002
2547599418,6cyclictest41-21ksoftirqd/307:59:593
25475994111,8cyclictest41-21ksoftirqd/310:35:253
138491410,0ptp4l401ktimersoftd/310:44:363
138491410,0ptp4l401ktimersoftd/310:44:363
2547599400,7cyclictest121rcu_preempt11:55:193
2547599397,5cyclictest41-21ksoftirqd/309:10:143
2547599397,5cyclictest41-21ksoftirqd/309:10:143
25475993934,3cyclictest41-21ksoftirqd/311:15:213
25475993934,3cyclictest41-21ksoftirqd/307:50:003
2547599393,3cyclictest41-21ksoftirqd/312:05:223
25475993933,3cyclictest41-21ksoftirqd/307:15:203
25474993934,3cyclictest7642-21cron12:00:002
25472993933,3cyclictest9-21ksoftirqd/008:29:590
138491390,1ptp4l401ktimersoftd/311:05:413
138491390,0ptp4l401ktimersoftd/310:00:253
138491390,0ptp4l401ktimersoftd/309:51:163
2547599384,2cyclictest41-21ksoftirqd/310:05:163
2547599383,3cyclictest41-21ksoftirqd/311:45:253
25475993833,3cyclictest41-21ksoftirqd/312:10:253
25475993833,3cyclictest41-21ksoftirqd/310:30:003
25475993833,3cyclictest41-21ksoftirqd/309:20:003
25475993831,4cyclictest41-21ksoftirqd/308:20:213
25475993830,5cyclictest41-21ksoftirqd/312:34:433
25473993833,3cyclictest25-21ksoftirqd/109:25:011
25473993833,3cyclictest25-21ksoftirqd/109:20:001
25472993831,4cyclictest9-21ksoftirqd/007:22:080
2547599377,4cyclictest41-21ksoftirqd/308:00:183
2547599376,6cyclictest41-21ksoftirqd/312:15:183
2547599375,4cyclictest41-21ksoftirqd/309:05:003
25475993733,2cyclictest41-21ksoftirqd/309:35:003
25475993732,3cyclictest41-21ksoftirqd/309:55:293
25475993732,3cyclictest41-21ksoftirqd/307:45:013
25475993732,3cyclictest41-21ksoftirqd/307:35:133
25475993731,4cyclictest41-21ksoftirqd/309:29:453
25475993731,4cyclictest41-21ksoftirqd/307:24:283
25475993731,3cyclictest41-21ksoftirqd/312:35:143
25475993731,3cyclictest41-21ksoftirqd/310:25:013
2547599371,3cyclictest121rcu_preempt11:30:223
25473993732,3cyclictest25-21ksoftirqd/109:45:001
25473993731,4cyclictest25-21ksoftirqd/111:24:001
25472993730,4cyclictest9-21ksoftirqd/011:34:380
25472993730,4cyclictest20380-21cron09:10:000
25475993632,2cyclictest41-21ksoftirqd/310:45:243
25475993631,3cyclictest41-21ksoftirqd/308:30:123
25475993630,4cyclictest41-21ksoftirqd/308:10:113
25475993630,4cyclictest41-21ksoftirqd/308:10:113
25475993630,3cyclictest41-21ksoftirqd/307:50:143
2547599362,10cyclictest41-21ksoftirqd/312:00:213
25474993630,4cyclictest33-21ksoftirqd/211:03:032
25474993630,4cyclictest33-21ksoftirqd/210:25:012
25473993631,3cyclictest25-21ksoftirqd/111:05:001
25473993631,3cyclictest25-21ksoftirqd/110:35:121
25473993631,3cyclictest25-21ksoftirqd/107:10:181
25473993630,4cyclictest25-21ksoftirqd/108:36:071
25473993630,4cyclictest25-21ksoftirqd/107:56:111
25473993629,5cyclictest25-21ksoftirqd/109:28:181
25472993631,3cyclictest9-21ksoftirqd/011:15:000
25472993631,3cyclictest9-21ksoftirqd/011:15:000
25472993630,4cyclictest9-21ksoftirqd/010:38:060
25472993630,4cyclictest9-21ksoftirqd/009:38:080
25472993630,3cyclictest9-21ksoftirqd/010:00:000
25472993629,5cyclictest9-21ksoftirqd/008:48:420
25472993629,4cyclictest9-21ksoftirqd/011:02:010
50798350,2rtkit-daemon506-21rtkit-daemon11:44:191
50798350,2rtkit-daemon506-21rtkit-daemon11:44:181
2547599356,3cyclictest41-21ksoftirqd/310:50:123
25475993531,2cyclictest41-21ksoftirqd/311:10:163
25475993531,2cyclictest41-21ksoftirqd/311:10:163
25475993530,3cyclictest41-21ksoftirqd/308:25:133
25475993530,3cyclictest41-21ksoftirqd/308:05:213
25475993529,3cyclictest41-21ksoftirqd/307:25:153
25475993528,4cyclictest41-21ksoftirqd/308:17:033
2547599351,10cyclictest41-21ksoftirqd/308:35:243
2547599350,5cyclictest121rcu_preempt08:40:133
25474993530,4cyclictest33-21ksoftirqd/212:14:032
25474993530,3cyclictest33-21ksoftirqd/207:47:052
25474993529,4cyclictest489-21cron07:25:002
25474993529,4cyclictest33-21ksoftirqd/211:22:322
25474993529,4cyclictest33-21ksoftirqd/207:41:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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