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2026-06-14 - 01:52
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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 rackdslot3.osadl.org (updated Sat Jun 13, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
69172210176,22sleep30-21swapper/307:05:353
71642204172,21sleep20-21swapper/207:08:472
71622201168,22sleep00-21swapper/007:08:450
71582201168,22sleep10-21swapper/107:08:421
2320021410,6sleep3756299cyclictest09:55:203
139391550,1ptp4l401ktimersoftd/312:17:433
139391520,1ptp4l401ktimersoftd/311:58:213
134391480,8getstats756299cyclictest11:48:293
129092450,2sleep20-21swapper/210:40:282
756299446,3cyclictest41-21ksoftirqd/311:00:203
7562994413,4cyclictest41-21ksoftirqd/311:50:253
7561994414,28cyclictest28479-21kworker/2:212:10:232
139391440,0ptp4l401ktimersoftd/308:55:153
139391430,34ptp4l0-21swapper/307:10:003
7562994232,8cyclictest41-21ksoftirqd/308:05:193
7562994229,10cyclictest41-21ksoftirqd/311:40:273
7561994215,26cyclictest11250-21kworker/2:011:05:242
139391420,0ptp4l401ktimersoftd/310:15:173
756199410,3cyclictest28479-21kworker/2:211:25:332
57898410,2rtkit-daemon0-21swapper/110:27:041
139391410,1ptp4l401ktimersoftd/307:56:453
139391410,1ptp4l0-21swapper/307:25:123
7562994035,3cyclictest41-21ksoftirqd/309:05:003
7562993934,3cyclictest41-21ksoftirqd/309:20:003
756299390,2cyclictest121rcu_preempt12:25:203
756299390,2cyclictest121rcu_preempt08:35:243
7559993934,3cyclictest29116-21cron07:55:000
756299389,6cyclictest41-21ksoftirqd/311:30:003
7562993834,2cyclictest41-21ksoftirqd/311:00:013
7562993833,2cyclictest41-21ksoftirqd/309:25:193
7561993831,4cyclictest33-21ksoftirqd/212:40:002
7561993831,4cyclictest33-21ksoftirqd/212:40:002
7560993832,4cyclictest25-21ksoftirqd/108:33:301
7559993832,3cyclictest32447-21fschecks_count12:30:160
7559993830,5cyclictest9-21ksoftirqd/012:20:010
756299371,33cyclictest26747-21cron07:49:593
7560993729,5cyclictest25-21ksoftirqd/110:35:121
57898370,2rtkit-daemon0-21swapper/108:37:101
139391370,1ptp4l0-21swapper/312:01:103
756299369,7cyclictest41-21ksoftirqd/310:05:273
756299363,6cyclictest41-21ksoftirqd/311:20:123
7562993633,2cyclictest41-21ksoftirqd/311:10:003
7562993632,3cyclictest41-21ksoftirqd/308:25:003
7562993632,3cyclictest41-21ksoftirqd/307:55:003
7562993631,3cyclictest41-21ksoftirqd/310:25:013
7562993631,3cyclictest41-21ksoftirqd/309:25:013
7562993630,4cyclictest41-21ksoftirqd/312:36:103
7562993630,4cyclictest41-21ksoftirqd/312:36:103
756199367,27cyclictest0-21swapper/212:19:432
756199366,28cyclictest12326-21kworker/2:109:55:232
7561993630,4cyclictest33-21ksoftirqd/209:43:072
7561993630,4cyclictest33-21ksoftirqd/208:06:392
7561993615,3cyclictest7127-21if_enp1s008:15:162
7560993630,4cyclictest25-21ksoftirqd/112:18:461
7560993630,4cyclictest25-21ksoftirqd/109:29:101
7560993630,4cyclictest25-21ksoftirqd/108:54:281
755999367,8cyclictest24920-21df_abs10:00:150
7559993614,3cyclictest12542-21cstates07:20:140
7559993614,3cyclictest12542-21cstates07:20:140
7559993613,3cyclictest31650-21/usr/sbin/munin10:15:120
756299355,3cyclictest121rcu_preempt10:25:163
756299353,4cyclictest41-21ksoftirqd/309:45:003
7562993531,2cyclictest41-21ksoftirqd/310:05:003
7562993530,3cyclictest41-21ksoftirqd/308:45:013
7562993530,3cyclictest41-21ksoftirqd/307:40:283
7562993530,2cyclictest41-21ksoftirqd/307:20:233
7562993530,2cyclictest41-21ksoftirqd/307:20:233
7562993529,4cyclictest41-21ksoftirqd/312:14:203
7562993529,4cyclictest41-21ksoftirqd/309:06:373
7562993529,4cyclictest41-21ksoftirqd/308:34:123
756299351,8cyclictest41-21ksoftirqd/309:10:153
7562993514,3cyclictest41-21ksoftirqd/307:30:273
7561993530,3cyclictest33-21ksoftirqd/212:05:592
7561993529,4cyclictest33-21ksoftirqd/210:03:012
7561993529,4cyclictest33-21ksoftirqd/209:27:552
7561993528,5cyclictest33-21ksoftirqd/212:34:172
7560993529,4cyclictest25-21ksoftirqd/110:34:051
7560993529,4cyclictest25-21ksoftirqd/109:43:591
7560993529,4cyclictest25-21ksoftirqd/109:36:161
7560993529,4cyclictest25-21ksoftirqd/108:56:081
7560993529,4cyclictest25-21ksoftirqd/107:56:471
7559993529,4cyclictest9-21ksoftirqd/010:40:580
7559993514,3cyclictest19654-21processes10:55:220
7559993512,3cyclictest1317-21runrttasks11:10:200
7562993430,2cyclictest41-21ksoftirqd/308:50:003
7562993430,2cyclictest41-21ksoftirqd/307:35:203
7562993429,3cyclictest41-21ksoftirqd/309:55:013
7562993429,3cyclictest41-21ksoftirqd/308:50:233
7562993429,3cyclictest41-21ksoftirqd/308:29:113
7562993429,3cyclictest41-21ksoftirqd/308:01:513
7562993429,3cyclictest41-21ksoftirqd/308:01:513
756299341,3cyclictest41-21ksoftirqd/311:30:153
756299340,3cyclictest121rcu_preempt09:35:223
7561993429,3cyclictest33-21ksoftirqd/207:52:402
7561993428,4cyclictest33-21ksoftirqd/211:41:412
7561993428,4cyclictest33-21ksoftirqd/211:35:072
7561993428,4cyclictest33-21ksoftirqd/208:59:342
7561993428,4cyclictest33-21ksoftirqd/207:58:092
7561993428,4cyclictest33-21ksoftirqd/207:49:542
7561993428,3cyclictest12079-21sh07:20:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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