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2026-09-01 - 20:34
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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 Sep 01, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
70372204170,22sleep30-21swapper/307:07:073
71552203169,22sleep10-21swapper/107:08:381
71192201167,22sleep20-21swapper/207:08:112
71442200167,22sleep00-21swapper/007:08:290
1980921480,2sleep20-21swapper/209:45:122
2035121390,5sleep0756099cyclictest11:55:120
138491620,1ptp4l401ktimersoftd/312:30:253
138491620,1ptp4l401ktimersoftd/312:30:253
138491600,1ptp4l401ktimersoftd/308:40:273
206612590,2sleep10-21swapper/111:55:121
176082540,1sleep317561-21cstates09:40:123
756299529,25cyclictest4642-21awk11:20:262
314552510,2sleep20-21swapper/210:05:262
236942500,1sleep10-21swapper/110:55:201
7562994918,29cyclictest0-21swapper/210:50:232
135191480,6getstats756399cyclictest07:52:063
7562994226,13cyclictest33-21ksoftirqd/208:11:402
138491410,0ptp4l401ktimersoftd/311:01:533
138491410,0ptp4l401ktimersoftd/310:00:143
7563994035,3cyclictest1141-21fschecks_count12:20:143
7562994011,27cyclictest0-21swapper/210:35:232
7560994035,3cyclictest9-21ksoftirqd/011:55:000
756099401,37cyclictest32072-21cron10:10:010
138491400,1ptp4l401ktimersoftd/307:46:103
7561993911,26cyclictest0-21swapper/110:40:221
7563993832,4cyclictest41-21ksoftirqd/308:04:523
7562993833,3cyclictest62050irq/143-enp4s0-12:18:042
7562993831,5cyclictest33-21ksoftirqd/212:10:002
7560993834,2cyclictest9-21ksoftirqd/010:35:010
7562993731,4cyclictest33-21ksoftirqd/211:13:012
7562993731,4cyclictest33-21ksoftirqd/208:02:422
7562993730,4cyclictest33-21ksoftirqd/207:16:572
7561993732,3cyclictest25-21ksoftirqd/110:40:011
7561993731,4cyclictest25-21ksoftirqd/110:02:041
7561993731,4cyclictest25-21ksoftirqd/108:43:411
756199370,36cyclictest0-21swapper/110:16:431
7560993732,3cyclictest9-21ksoftirqd/011:20:000
7560993732,3cyclictest9-21ksoftirqd/009:00:000
7560993731,3cyclictest9-21ksoftirqd/008:40:000
7560993730,5cyclictest9-21ksoftirqd/009:36:190
138491370,0ptp4l401ktimersoftd/310:56:423
756399363,3cyclictest121rcu_preempt12:15:133
7563993630,4cyclictest41-21ksoftirqd/310:44:173
7562993631,3cyclictest17454-21cron07:30:002
7562993630,4cyclictest33-21ksoftirqd/211:27:372
7562993630,4cyclictest33-21ksoftirqd/210:44:542
7562993629,5cyclictest33-21ksoftirqd/210:24:442
7561993630,4cyclictest25-21ksoftirqd/111:14:251
7561993630,4cyclictest25-21ksoftirqd/111:03:381
7561993629,4cyclictest25-21ksoftirqd/111:36:561
7561993624,10cyclictest25-21ksoftirqd/110:07:381
7560993632,3cyclictest9-21ksoftirqd/008:25:000
7560993630,4cyclictest9-21ksoftirqd/009:56:370
7560993630,3cyclictest9-21ksoftirqd/011:40:010
7563993530,3cyclictest41-21ksoftirqd/309:29:243
7563993530,3cyclictest41-21ksoftirqd/308:51:133
7563993530,3cyclictest41-21ksoftirqd/307:30:393
7563993529,4cyclictest41-21ksoftirqd/309:56:083
7563993529,4cyclictest41-21ksoftirqd/309:08:023
7563993528,4cyclictest41-21ksoftirqd/308:15:433
7562993529,4cyclictest33-21ksoftirqd/211:33:312
7562993529,4cyclictest33-21ksoftirqd/210:32:142
7562993529,4cyclictest33-21ksoftirqd/209:25:102
7562993529,4cyclictest33-21ksoftirqd/209:15:312
7562993529,4cyclictest33-21ksoftirqd/208:46:472
7562993512,21cyclictest19944-21sed08:40:002
756199353,30cyclictest0-21swapper/111:50:521
7561993529,4cyclictest25-21ksoftirqd/111:49:261
7561993529,4cyclictest25-21ksoftirqd/109:02:261
7561993529,4cyclictest25-21ksoftirqd/107:47:491
7561993529,4cyclictest25-21ksoftirqd/107:26:341
7561993529,4cyclictest25-21ksoftirqd/107:10:341
7560993530,3cyclictest9-21ksoftirqd/011:49:260
7560993530,3cyclictest9-21ksoftirqd/008:50:190
7560993529,4cyclictest9-21ksoftirqd/010:10:410
7560993529,4cyclictest9-21ksoftirqd/009:22:070
7560993528,4cyclictest9-21ksoftirqd/009:30:110
138491350,0ptp4l401ktimersoftd/307:38:333
7563993431,2cyclictest41-21ksoftirqd/312:25:193
7563993429,3cyclictest41-21ksoftirqd/308:10:103
7563993428,4cyclictest41-21ksoftirqd/312:11:403
7563993428,4cyclictest41-21ksoftirqd/310:24:163
7563993428,4cyclictest41-21ksoftirqd/310:13:293
7563993428,4cyclictest41-21ksoftirqd/309:12:233
7563993428,4cyclictest41-21ksoftirqd/307:29:143
7563993427,5cyclictest41-21ksoftirqd/310:07:323
7562993429,3cyclictest33-21ksoftirqd/211:37:572
7562993429,3cyclictest33-21ksoftirqd/208:42:222
7562993429,3cyclictest33-21ksoftirqd/208:26:332
7562993428,4cyclictest33-21ksoftirqd/212:03:412
7562993428,4cyclictest33-21ksoftirqd/209:44:482
7562993428,4cyclictest33-21ksoftirqd/209:02:442
7562993428,4cyclictest33-21ksoftirqd/207:37:022
7562993428,4cyclictest33-21ksoftirqd/207:10:552
7562993427,5cyclictest33-21ksoftirqd/211:06:162
7562993427,4cyclictest33-21ksoftirqd/211:45:472
756299341,27cyclictest0-21swapper/211:40:242
7561993429,3cyclictest25-21ksoftirqd/112:13:511
7561993428,4cyclictest25-21ksoftirqd/111:44:021
7561993428,4cyclictest25-21ksoftirqd/109:51:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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