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2025-12-07 - 10:46
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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 Sun Dec 07, 2025 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3482229163,22sleep20-21swapper/219:06:082
137191229200,19phc2sys0-21swapper/319:09:593
3522207174,22sleep10-21swapper/119:06:111
3512201168,22sleep00-21swapper/019:06:100
136991700,1ptp4l401ktimersoftd/323:00:313
136991700,1ptp4l401ktimersoftd/323:00:313
136991660,1ptp4l467-21iostat_ios20:15:203
136991550,1ptp4l401ktimersoftd/320:25:213
136991540,1ptp4l401ktimersoftd/321:15:353
136991530,1ptp4l401ktimersoftd/323:52:143
136991480,1ptp4l391rcuc/320:33:003
132891480,2getstats0-21swapper/323:10:183
59298470,11rtkit-daemon591-21rtkit-daemon22:44:261
136991450,0ptp4l401ktimersoftd/300:36:503
136991450,0ptp4l401ktimersoftd/300:36:503
59298440,8rtkit-daemon0-21swapper/223:49:242
136991440,1ptp4l401ktimersoftd/323:56:113
59298430,2rtkit-daemon591-21rtkit-daemon00:03:451
136991430,35ptp4l0-21swapper/319:10:013
136991430,0ptp4l401ktimersoftd/322:03:423
996994136,3cyclictest1297-21runrttasks23:36:151
59298410,2rtkit-daemon591-21rtkit-daemon20:36:151
136991410,0ptp4l401ktimersoftd/322:45:153
996993830,5cyclictest25-21ksoftirqd/121:35:301
136991380,0ptp4l401ktimersoftd/323:15:333
997993731,4cyclictest33-21ksoftirqd/222:17:592
996993732,3cyclictest25-21ksoftirqd/122:05:001
996993731,3cyclictest25-21ksoftirqd/121:00:001
996993731,3cyclictest25-21ksoftirqd/121:00:001
995993732,3cyclictest9-21ksoftirqd/000:00:000
136991370,0ptp4l401ktimersoftd/320:05:133
997993630,4cyclictest33-21ksoftirqd/221:03:422
996993629,4cyclictest25-21ksoftirqd/122:35:481
995993630,3cyclictest9-21ksoftirqd/022:00:000
136991360,15ptp4l2257-21gnome-shell23:44:583
136991360,0ptp4l401ktimersoftd/322:55:153
998993530,3cyclictest41-21ksoftirqd/320:10:123
998993529,4cyclictest41-21ksoftirqd/321:24:413
998993529,4cyclictest41-21ksoftirqd/321:00:003
998993529,4cyclictest41-21ksoftirqd/321:00:003
998993529,4cyclictest41-21ksoftirqd/319:50:583
997993529,4cyclictest33-21ksoftirqd/222:09:052
997993529,4cyclictest33-21ksoftirqd/221:38:592
997993529,4cyclictest33-21ksoftirqd/221:19:302
997993529,4cyclictest33-21ksoftirqd/219:21:322
997993528,5cyclictest33-21ksoftirqd/219:52:292
99799352,2cyclictest121rcu_preempt19:15:192
136991350,0ptp4l401ktimersoftd/320:50:173
998993429,3cyclictest41-21ksoftirqd/322:54:593
998993429,3cyclictest41-21ksoftirqd/321:07:353
998993428,4cyclictest41-21ksoftirqd/323:36:063
998993428,4cyclictest41-21ksoftirqd/323:23:523
998993428,4cyclictest41-21ksoftirqd/322:18:173
998993428,4cyclictest41-21ksoftirqd/319:56:513
998993428,4cyclictest41-21ksoftirqd/300:07:483
997993429,3cyclictest33-21ksoftirqd/223:39:312
997993429,3cyclictest33-21ksoftirqd/219:25:122
997993429,3cyclictest33-21ksoftirqd/219:25:122
997993428,4cyclictest33-21ksoftirqd/222:38:052
997993428,4cyclictest33-21ksoftirqd/221:32:252
997993428,4cyclictest33-21ksoftirqd/221:22:272
997993428,4cyclictest33-21ksoftirqd/220:30:442
997993428,4cyclictest33-21ksoftirqd/220:22:302
997993428,4cyclictest33-21ksoftirqd/220:06:372
997993428,4cyclictest33-21ksoftirqd/219:47:122
997993428,4cyclictest33-21ksoftirqd/200:05:112
997993428,4cyclictest33-21ksoftirqd/200:04:512
996993428,4cyclictest25-21ksoftirqd/123:44:271
996993428,4cyclictest25-21ksoftirqd/121:46:171
996993428,4cyclictest18780-21idleruntime-cro23:10:011
995993430,2cyclictest29495-21sh22:24:590
995993429,3cyclictest9-21ksoftirqd/022:35:000
995993428,4cyclictest9-21ksoftirqd/022:25:130
995993427,4cyclictest9-21ksoftirqd/021:53:100
995993427,4cyclictest9-21ksoftirqd/021:06:050
998993328,3cyclictest41-21ksoftirqd/319:38:153
998993327,4cyclictest41-21ksoftirqd/300:24:043
998993327,4cyclictest41-21ksoftirqd/300:14:333
997993328,3cyclictest33-21ksoftirqd/223:17:222
997993328,3cyclictest33-21ksoftirqd/220:43:442
997993328,3cyclictest33-21ksoftirqd/220:00:502
997993328,3cyclictest33-21ksoftirqd/200:21:072
997993327,4cyclictest33-21ksoftirqd/223:53:552
997993327,4cyclictest33-21ksoftirqd/223:06:492
997993327,4cyclictest33-21ksoftirqd/220:59:092
997993327,4cyclictest33-21ksoftirqd/220:59:092
997993327,4cyclictest33-21ksoftirqd/219:56:302
997993327,4cyclictest33-21ksoftirqd/219:13:302
997993327,4cyclictest33-21ksoftirqd/200:39:322
997993327,4cyclictest33-21ksoftirqd/200:39:322
997993327,4cyclictest33-21ksoftirqd/200:11:572
997993327,3cyclictest33-21ksoftirqd/200:16:362
997993326,4cyclictest33-21ksoftirqd/223:58:092
996993328,3cyclictest25-21ksoftirqd/123:20:001
996993328,3cyclictest25-21ksoftirqd/120:32:421
996993327,4cyclictest25-21ksoftirqd/120:19:321
996993327,4cyclictest25-21ksoftirqd/100:33:261
996993327,3cyclictest25-21ksoftirqd/119:34:311
996993327,3cyclictest25-21ksoftirqd/119:20:191
996993326,4cyclictest25-21ksoftirqd/122:55:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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