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2026-08-19 - 22:15
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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 Wed Aug 19, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2146222570,7sleep10-21swapper/107:05:131
2146222570,7sleep10-21swapper/107:05:121
139491227164,51phc2sys0-21swapper/307:07:333
139491227164,51phc2sys0-21swapper/307:07:333
233772205172,22sleep00-21swapper/007:09:470
233772205172,22sleep00-21swapper/007:09:470
231152204170,23sleep20-21swapper/207:06:282
231152204170,23sleep20-21swapper/207:06:282
522521370,7sleep32368999cyclictest12:05:273
4912630,6sleep22368899cyclictest08:35:172
4912630,6sleep22368899cyclictest08:35:172
139391600,1ptp4l401ktimersoftd/308:20:473
2368799472,41cyclictest11687-21awk09:00:001
139391440,0ptp4l401ktimersoftd/307:25:173
139391430,0ptp4l401ktimersoftd/311:30:123
139391430,0ptp4l401ktimersoftd/311:10:153
139391430,0ptp4l401ktimersoftd/310:06:293
139391430,0ptp4l401ktimersoftd/307:49:023
23689994230,9cyclictest41-21ksoftirqd/312:30:203
139391420,0ptp4l401ktimersoftd/309:21:333
2368999415,3cyclictest121rcu_preempt08:10:243
2368799418,8cyclictest25-21ksoftirqd/107:20:011
2368799414,2cyclictest121rcu_preempt09:50:201
23689994035,3cyclictest41-21ksoftirqd/312:04:593
23689994035,3cyclictest41-21ksoftirqd/309:55:013
23689994035,3cyclictest41-21ksoftirqd/309:30:003
23688994029,9cyclictest33-21ksoftirqd/209:05:262
23687994034,3cyclictest25-21ksoftirqd/109:40:001
23687994034,3cyclictest25-21ksoftirqd/109:40:001
23687994025,5cyclictest25-21ksoftirqd/108:15:001
23687994011,7cyclictest25-21ksoftirqd/109:20:271
2368999390,2cyclictest121rcu_preempt09:35:193
2368999390,2cyclictest121rcu_preempt09:35:193
2368799393,4cyclictest25-21ksoftirqd/110:15:191
23687993934,3cyclictest25-21ksoftirqd/111:15:011
23687993933,3cyclictest25-21ksoftirqd/110:25:241
23686993935,2cyclictest9-21ksoftirqd/007:59:590
23686993934,3cyclictest9-21ksoftirqd/008:20:010
2368999383,3cyclictest41-21ksoftirqd/307:15:243
23689993833,3cyclictest41-21ksoftirqd/312:30:013
2368999381,2cyclictest121rcu_preempt08:47:463
23688993834,3cyclictest33-21ksoftirqd/210:20:012
23688993833,3cyclictest33-21ksoftirqd/209:35:202
23688993833,3cyclictest33-21ksoftirqd/209:35:202
23688993832,3cyclictest33-21ksoftirqd/208:20:192
2368899382,2cyclictest121rcu_preempt11:00:222
2368799384,6cyclictest25-21ksoftirqd/107:35:271
2368799384,6cyclictest25-21ksoftirqd/107:35:271
2368799384,2cyclictest121rcu_preempt12:35:211
23687993833,3cyclictest25-21ksoftirqd/110:00:001
23687993833,2cyclictest25-21ksoftirqd/112:35:001
23687993833,2cyclictest25-21ksoftirqd/112:20:001
23687993833,2cyclictest25-21ksoftirqd/112:20:001
2368799383,2cyclictest121rcu_preempt08:20:271
23687993831,5cyclictest25-21ksoftirqd/112:28:371
2368799380,4cyclictest25-21ksoftirqd/110:05:251
23686993833,2cyclictest9-21ksoftirqd/011:20:000
23686993832,3cyclictest9-21ksoftirqd/008:55:180
139391380,0ptp4l401ktimersoftd/309:19:563
2368999375,3cyclictest41-21ksoftirqd/312:10:193
2368999375,2cyclictest41-21ksoftirqd/307:30:223
23689993733,2cyclictest41-21ksoftirqd/312:20:003
23689993733,2cyclictest41-21ksoftirqd/312:20:003
23689993732,2cyclictest41-21ksoftirqd/310:40:003
23689993731,4cyclictest41-21ksoftirqd/310:47:563
23689993731,4cyclictest41-21ksoftirqd/309:31:503
23688993733,3cyclictest33-21ksoftirqd/209:45:012
23688993732,3cyclictest33-21ksoftirqd/211:15:002
23688993732,3cyclictest33-21ksoftirqd/210:24:592
23688993732,3cyclictest33-21ksoftirqd/207:20:012
23688993725,10cyclictest33-21ksoftirqd/209:55:252
2368799376,7cyclictest25-21ksoftirqd/110:20:281
2368799374,6cyclictest25-21ksoftirqd/111:05:221
2368799374,3cyclictest121rcu_preempt07:20:141
2368799373,3cyclictest121rcu_preempt10:00:161
23687993732,3cyclictest25-21ksoftirqd/110:43:331
23687993732,3cyclictest25-21ksoftirqd/108:35:001
23687993732,3cyclictest25-21ksoftirqd/107:25:271
23687993731,3cyclictest25-21ksoftirqd/111:45:001
23687993731,3cyclictest25-21ksoftirqd/107:55:001
23687993730,4cyclictest25-21ksoftirqd/108:25:221
2368799372,2cyclictest121rcu_preempt08:00:141
23687993720,5cyclictest25-21ksoftirqd/112:05:131
2368799371,3cyclictest121rcu_preempt10:35:191
23687993710,4cyclictest25-21ksoftirqd/111:15:141
2368799370,6cyclictest25-21ksoftirqd/107:50:011
2368799370,5cyclictest25-21ksoftirqd/108:15:291
23686993732,3cyclictest3081-21sshd09:49:250
2368999365,3cyclictest41-21ksoftirqd/311:25:253
2368999365,2cyclictest121rcu_preempt11:05:233
2368999364,3cyclictest121rcu_preempt08:00:193
2368999363,2cyclictest41-21ksoftirqd/309:00:003
23689993632,2cyclictest41-21ksoftirqd/307:40:193
23689993631,3cyclictest41-21ksoftirqd/311:50:003
23689993631,3cyclictest41-21ksoftirqd/311:25:013
23689993631,3cyclictest41-21ksoftirqd/310:20:003
23689993630,3cyclictest41-21ksoftirqd/308:15:233
2368999360,11cyclictest41-21ksoftirqd/310:50:113
23688993632,3cyclictest33-21ksoftirqd/207:54:592
23688993632,2cyclictest33-21ksoftirqd/212:10:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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