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2026-08-27 - 22:37
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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 Thu Aug 27, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34802207174,22sleep00-21swapper/007:08:020
139491207173,22phc2sys0-21swapper/307:06:013
33122203170,22sleep20-21swapper/207:05:502
34932201168,22sleep10-21swapper/107:08:111
1564421700,6sleep1407699cyclictest10:55:211
2558221390,3sleep0407599cyclictest11:15:260
1460021390,4sleep0407599cyclictest12:00:220
2566221270,5sleep3407899cyclictest09:00:253
120342620,7sleep2407799cyclictest09:40:202
139391570,1ptp4l18537-21ls08:45:253
139391530,1ptp4l401ktimersoftd/312:05:453
139391520,1ptp4l401ktimersoftd/310:18:553
139391520,1ptp4l401ktimersoftd/310:18:543
139391510,1ptp4l0-21swapper/308:01:433
4078994413,7cyclictest41-21ksoftirqd/307:15:003
4078994410,3cyclictest41-21ksoftirqd/309:20:003
139391430,0ptp4l401ktimersoftd/311:43:453
4078994213,4cyclictest41-21ksoftirqd/308:40:013
4078994211,7cyclictest41-21ksoftirqd/310:25:013
4077994236,3cyclictest207-21systemd-journal09:25:002
139391420,0ptp4l401ktimersoftd/311:08:553
139391420,0ptp4l401ktimersoftd/309:10:133
4078994135,3cyclictest8720-21cron07:20:003
4078994035,3cyclictest41-21ksoftirqd/308:54:593
407899403,2cyclictest121rcu_preempt07:35:263
4078994030,8cyclictest41-21ksoftirqd/308:05:133
139391400,1ptp4l401ktimersoftd/310:00:363
407899394,4cyclictest41-21ksoftirqd/307:30:223
4078993934,3cyclictest41-21ksoftirqd/308:25:003
407899388,3cyclictest41-21ksoftirqd/311:55:223
407899387,4cyclictest41-21ksoftirqd/307:55:273
4078993833,3cyclictest41-21ksoftirqd/312:30:203
4078993833,3cyclictest41-21ksoftirqd/309:25:003
4078993832,3cyclictest41-21ksoftirqd/307:45:003
407899381,5cyclictest41-21ksoftirqd/308:40:263
407899380,2cyclictest121rcu_preempt10:25:243
4077993832,3cyclictest1308-21sshd11:15:342
407699381,3cyclictest121rcu_preempt10:30:121
407599381,34cyclictest7300-21cron08:25:000
139391380,0ptp4l401ktimersoftd/312:17:073
407899376,3cyclictest41-21ksoftirqd/309:25:283
407899374,7cyclictest41-21ksoftirqd/312:15:013
407899374,4cyclictest41-21ksoftirqd/310:40:093
4078993733,2cyclictest41-21ksoftirqd/312:25:003
4078993732,3cyclictest41-21ksoftirqd/310:05:203
407899371,3cyclictest41-21ksoftirqd/309:50:273
4076993731,4cyclictest25-21ksoftirqd/112:03:291
4076993731,4cyclictest25-21ksoftirqd/108:03:501
57898360,2rtkit-daemon0-21swapper/111:30:111
407899365,4cyclictest41-21ksoftirqd/311:35:163
407899363,2cyclictest121rcu_preempt08:33:203
4078993631,3cyclictest41-21ksoftirqd/312:30:003
4078993631,3cyclictest41-21ksoftirqd/311:15:003
4078993629,5cyclictest41-21ksoftirqd/308:57:083
4078993611,3cyclictest41-21ksoftirqd/311:03:213
4078993610,4cyclictest41-21ksoftirqd/311:15:183
4077993631,3cyclictest33-21ksoftirqd/211:10:112
4077993630,4cyclictest33-21ksoftirqd/207:37:162
4076993632,3cyclictest25-21ksoftirqd/112:20:001
4076993630,4cyclictest25-21ksoftirqd/112:22:011
4076993630,4cyclictest25-21ksoftirqd/112:11:111
4076993630,4cyclictest25-21ksoftirqd/110:46:301
4076993630,4cyclictest25-21ksoftirqd/109:58:321
4076993630,4cyclictest25-21ksoftirqd/109:33:091
4076993630,4cyclictest25-21ksoftirqd/108:34:061
4078993531,3cyclictest41-21ksoftirqd/312:40:003
4078993530,3cyclictest41-21ksoftirqd/310:55:003
4078993529,4cyclictest41-21ksoftirqd/307:48:163
4078993528,4cyclictest41-21ksoftirqd/311:23:503
407899351,4cyclictest41-21ksoftirqd/310:55:183
4077993530,3cyclictest33-21ksoftirqd/208:24:452
4077993529,4cyclictest33-21ksoftirqd/212:11:592
4077993529,4cyclictest33-21ksoftirqd/211:04:492
4077993529,4cyclictest33-21ksoftirqd/210:02:012
4077993529,4cyclictest33-21ksoftirqd/209:53:442
4077993529,4cyclictest33-21ksoftirqd/209:31:012
4077993529,4cyclictest33-21ksoftirqd/208:50:412
4077993529,4cyclictest33-21ksoftirqd/208:12:462
4077993529,4cyclictest33-21ksoftirqd/207:31:462
4077993528,5cyclictest33-21ksoftirqd/210:44:072
4076993530,3cyclictest25-21ksoftirqd/110:10:141
4076993530,3cyclictest25-21ksoftirqd/110:04:041
4076993529,4cyclictest25-21ksoftirqd/112:06:261
4076993529,4cyclictest25-21ksoftirqd/111:23:281
4076993529,4cyclictest25-21ksoftirqd/109:13:431
4075993529,4cyclictest9-21ksoftirqd/010:04:200
4075993529,4cyclictest9-21ksoftirqd/009:09:560
4075993529,4cyclictest9-21ksoftirqd/007:55:110
4078993430,2cyclictest41-21ksoftirqd/307:50:243
4078993429,3cyclictest41-21ksoftirqd/311:45:173
4078993429,3cyclictest41-21ksoftirqd/310:45:143
4078993429,3cyclictest41-21ksoftirqd/310:10:143
4078993429,3cyclictest41-21ksoftirqd/309:55:243
4078993429,3cyclictest41-21ksoftirqd/308:10:103
4078993428,4cyclictest41-21ksoftirqd/311:53:553
4078993428,3cyclictest41-21ksoftirqd/309:45:133
4078993427,4cyclictest41-21ksoftirqd/311:28:033
4077993429,3cyclictest33-21ksoftirqd/212:25:232
4077993428,4cyclictest33-21ksoftirqd/210:17:112
4077993428,4cyclictest33-21ksoftirqd/210:17:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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