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2026-06-03 - 01:30
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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 rackdslot1.osadl.org (updated Tue Jun 02, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
222792780,7sleep12351999cyclictest09:25:191
134491720,5ptp4l33-21ksoftirqd/210:25:232
134491690,4ptp4l15908-21meminfo11:30:202
134491660,5ptp4l12191-21/usr/sbin/munin12:30:300
23519996428,8cyclictest25-21ksoftirqd/110:05:011
23519996333,8cyclictest25-21ksoftirqd/110:20:281
23519996331,3cyclictest25-21ksoftirqd/109:45:001
134491630,4ptp4l0-21swapper/207:05:042
23519996232,8cyclictest25-21ksoftirqd/112:00:011
23519996231,6cyclictest25-21ksoftirqd/107:50:151
134491620,11ptp4l0-21swapper/211:19:582
23519996130,3cyclictest25-21ksoftirqd/112:25:241
23519996129,3cyclictest25-21ksoftirqd/108:45:211
23519996128,7cyclictest25-21ksoftirqd/111:20:001
134491610,5ptp4l0-21swapper/012:00:480
23519996033,3cyclictest25-21ksoftirqd/110:40:271
23519996027,4cyclictest25-21ksoftirqd/109:10:231
286642590,5sleep20-21swapper/208:30:152
23519995932,6cyclictest25-21ksoftirqd/112:10:131
23519995931,8cyclictest25-21ksoftirqd/107:28:271
23519995931,6cyclictest25-21ksoftirqd/109:35:021
23519995926,3cyclictest25-21ksoftirqd/110:30:001
23519995923,8cyclictest25-21ksoftirqd/111:10:181
134491590,3ptp4l0-21swapper/111:53:011
23519995828,6cyclictest25-21ksoftirqd/109:00:001
23519995827,6cyclictest25-21ksoftirqd/111:00:141
23519995827,3cyclictest25-21ksoftirqd/112:15:261
23519995826,3cyclictest25-21ksoftirqd/112:40:011
23519995824,6cyclictest25-21ksoftirqd/109:00:241
23519995824,6cyclictest25-21ksoftirqd/109:00:241
23519995821,7cyclictest25-21ksoftirqd/109:45:161
23519995730,3cyclictest25-21ksoftirqd/111:05:211
134491570,4ptp4l0-21swapper/211:00:212
23519995631,7cyclictest25-21ksoftirqd/111:45:271
23519995631,4cyclictest25-21ksoftirqd/109:20:111
23519995629,3cyclictest25-21ksoftirqd/110:18:491
23519995628,6cyclictest25-21ksoftirqd/110:55:001
23519995628,6cyclictest25-21ksoftirqd/110:55:001
23519995624,8cyclictest25-21ksoftirqd/108:35:251
23519995617,3cyclictest25-21ksoftirqd/109:50:201
23519995529,6cyclictest25-21ksoftirqd/110:05:141
23519995528,7cyclictest25-21ksoftirqd/108:30:281
23519995528,3cyclictest25-21ksoftirqd/112:20:261
23519995526,7cyclictest25-21ksoftirqd/112:00:151
23519995524,7cyclictest25-21ksoftirqd/107:40:281
23519995522,7cyclictest25-21ksoftirqd/108:15:161
134491550,4ptp4l0-21swapper/308:23:583
23519995434,2cyclictest25-21ksoftirqd/112:05:281
23519995429,6cyclictest25-21ksoftirqd/111:20:271
23519995429,6cyclictest25-21ksoftirqd/111:20:271
23519995423,8cyclictest25-21ksoftirqd/107:35:271
23519995423,3cyclictest25-21ksoftirqd/107:35:011
23519995420,4cyclictest25-21ksoftirqd/108:40:171
134491540,4ptp4l0-21swapper/209:35:002
23519995328,2cyclictest25-21ksoftirqd/108:23:241
23519995326,7cyclictest25-21ksoftirqd/110:10:141
23519995326,4cyclictest25-21ksoftirqd/110:45:271
23519995324,3cyclictest25-21ksoftirqd/111:40:191
23519995322,4cyclictest25-21ksoftirqd/110:55:541
134491530,4ptp4l0-21swapper/009:13:200
128572530,1sleep112860-21sort07:55:201
23519995228,3cyclictest25-21ksoftirqd/107:14:081
23519995221,4cyclictest25-21ksoftirqd/108:25:211
23519995218,8cyclictest25-21ksoftirqd/109:15:141
23519995214,7cyclictest25-21ksoftirqd/108:05:171
134491520,3ptp4l0-21swapper/009:00:230
134491520,3ptp4l0-21swapper/009:00:230
2351999516,6cyclictest25-21ksoftirqd/109:55:191
23519995119,6cyclictest25-21ksoftirqd/109:35:191
23519995117,7cyclictest25-21ksoftirqd/111:25:201
134491510,4ptp4l0-21swapper/310:59:193
134491510,3ptp4l0-21swapper/011:43:320
134491510,10ptp4l0-21swapper/211:25:252
2351999503,9cyclictest25-21ksoftirqd/110:30:251
23519995036,3cyclictest25-21ksoftirqd/110:40:011
23519995025,2cyclictest25-21ksoftirqd/108:54:491
134491500,4ptp4l0-21swapper/311:50:023
134491500,4ptp4l0-21swapper/010:53:530
134491500,4ptp4l0-21swapper/010:53:530
134491500,14ptp4l22125-21load07:05:180
2351999496,5cyclictest25-21ksoftirqd/107:45:241
2351999493,2cyclictest25-21ksoftirqd/109:05:151
134491490,4ptp4l0-21swapper/307:48:223
134491490,4ptp4l0-21swapper/008:52:380
134491490,4ptp4l0-21swapper/008:49:260
23519994813,8cyclictest25-21ksoftirqd/108:10:241
2351999481,2cyclictest121rcu_preempt11:30:191
134491480,4ptp4l0-21swapper/312:20:073
134491480,4ptp4l0-21swapper/309:17:183
134491480,4ptp4l0-21swapper/211:44:152
134491480,4ptp4l0-21swapper/010:56:290
134491480,4ptp4l0-21swapper/009:06:440
134491480,4ptp4l0-21swapper/007:32:080
2351999475,6cyclictest25-21ksoftirqd/107:20:251
2351999475,6cyclictest25-21ksoftirqd/107:20:251
134491470,4ptp4l2352199cyclictest08:27:463
134491470,4ptp4l0-21swapper/311:12:393
134491470,4ptp4l0-21swapper/310:45:533
134491470,4ptp4l0-21swapper/310:41:353
134491470,4ptp4l0-21swapper/309:08:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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