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2026-05-26 - 17:13
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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 May 26, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3141421500,5sleep02854499cyclictest09:35:130
2401721450,6sleep22854699cyclictest08:10:142
134491800,3ptp4l0-21swapper/010:19:480
28545996734,4cyclictest25-21ksoftirqd/107:20:001
28545996633,7cyclictest25-21ksoftirqd/110:55:171
28545996332,4cyclictest25-21ksoftirqd/110:05:001
28545996330,8cyclictest25-21ksoftirqd/111:00:161
28545996330,3cyclictest25-21ksoftirqd/110:55:001
28545996323,7cyclictest25-21ksoftirqd/108:15:011
134491630,4ptp4l19524-21diskstats09:10:150
28545996235,3cyclictest25-21ksoftirqd/108:55:181
28545996232,4cyclictest25-21ksoftirqd/108:45:161
28545996231,7cyclictest25-21ksoftirqd/108:50:181
28545996230,9cyclictest25-21ksoftirqd/109:10:131
28545996228,6cyclictest25-21ksoftirqd/108:40:161
232292620,5sleep00-21swapper/009:15:270
28545996129,7cyclictest25-21ksoftirqd/110:10:231
28545996127,9cyclictest25-21ksoftirqd/110:30:211
28545996127,7cyclictest25-21ksoftirqd/108:30:211
28545996119,7cyclictest25-21ksoftirqd/107:15:011
134491610,4ptp4l0-21swapper/011:10:150
28545996032,4cyclictest25-21ksoftirqd/110:07:391
28545996030,7cyclictest25-21ksoftirqd/108:00:291
28545996030,7cyclictest25-21ksoftirqd/108:00:291
28545996029,8cyclictest25-21ksoftirqd/108:35:271
28545996029,4cyclictest25-21ksoftirqd/108:08:251
28545996027,8cyclictest25-21ksoftirqd/109:50:141
28545996027,7cyclictest25-21ksoftirqd/110:20:241
28545996026,8cyclictest25-21ksoftirqd/110:30:001
28545996026,4cyclictest25-21ksoftirqd/111:25:191
28545995932,3cyclictest25-21ksoftirqd/111:45:431
28545995931,4cyclictest25-21ksoftirqd/109:48:571
28545995930,7cyclictest25-21ksoftirqd/109:00:161
28545995930,3cyclictest25-21ksoftirqd/109:36:331
28545995927,8cyclictest25-21ksoftirqd/110:40:151
28545995927,7cyclictest25-21ksoftirqd/110:45:221
28545995927,7cyclictest25-21ksoftirqd/108:15:131
28545995926,7cyclictest25-21ksoftirqd/112:35:261
134491590,4ptp4l0-21swapper/110:35:241
134491590,3ptp4l0-21swapper/012:20:250
134491590,11ptp4l27795-21runrttasks07:06:460
28545995830,4cyclictest25-21ksoftirqd/111:43:461
28545995830,4cyclictest25-21ksoftirqd/111:12:581
28545995829,4cyclictest25-21ksoftirqd/112:28:521
28545995829,4cyclictest25-21ksoftirqd/111:38:201
28545995829,3cyclictest25-21ksoftirqd/111:59:231
28545995826,9cyclictest25-21ksoftirqd/107:25:011
28545995824,7cyclictest25-21ksoftirqd/107:35:011
134491580,4ptp4l0-21swapper/209:23:492
28545995730,6cyclictest25-21ksoftirqd/111:15:161
28545995730,6cyclictest25-21ksoftirqd/111:15:161
28545995729,6cyclictest25-21ksoftirqd/109:30:281
28545995729,4cyclictest25-21ksoftirqd/112:07:371
28545995729,4cyclictest25-21ksoftirqd/109:17:471
28545995728,6cyclictest25-21ksoftirqd/107:25:221
28545995728,3cyclictest25-21ksoftirqd/109:22:491
28545995727,8cyclictest25-21ksoftirqd/108:20:161
28545995727,4cyclictest25-21ksoftirqd/107:41:081
28545995723,7cyclictest25-21ksoftirqd/108:25:251
28545995630,7cyclictest25-21ksoftirqd/111:05:381
28545995630,7cyclictest25-21ksoftirqd/109:59:191
28545995628,3cyclictest25-21ksoftirqd/111:20:211
28545995628,3cyclictest25-21ksoftirqd/110:16:361
28545995626,4cyclictest25-21ksoftirqd/107:45:051
28545995623,3cyclictest25-21ksoftirqd/107:50:481
134491560,4ptp4l0-21swapper/011:41:580
134491560,4ptp4l0-21swapper/011:39:180
28545995528,4cyclictest25-21ksoftirqd/112:21:371
28545995527,3cyclictest25-21ksoftirqd/112:10:051
28545995526,4cyclictest25-21ksoftirqd/109:44:281
134491550,5ptp4l0-21swapper/209:41:362
134491550,3ptp4l0-21swapper/012:00:140
28545995420,7cyclictest25-21ksoftirqd/109:05:151
134491540,5ptp4l0-21swapper/307:09:363
134491540,4ptp4l0-21swapper/011:04:160
134491540,4ptp4l0-21swapper/009:54:400
134491540,4ptp4l0-21swapper/008:52:130
134491540,3ptp4l0-21swapper/012:38:310
2854799533,48cyclictest0-21swapper/309:26:483
28545995326,3cyclictest25-21ksoftirqd/112:01:071
134491530,4ptp4l0-21swapper/011:07:000
134491530,4ptp4l0-21swapper/007:34:350
2854799527,43cyclictest0-21swapper/308:27:483
28546995212,5cyclictest33-21ksoftirqd/210:43:522
134491520,4ptp4l0-21swapper/207:10:182
134491520,4ptp4l0-21swapper/010:05:060
134491520,4ptp4l0-21swapper/008:35:050
134491520,2ptp4l0-21swapper/010:45:280
28545995123,8cyclictest25-21ksoftirqd/107:35:141
134491510,4ptp4l0-21swapper/012:16:340
134491510,4ptp4l0-21swapper/010:25:150
28545995017,7cyclictest25-21ksoftirqd/111:50:281
28545995015,4cyclictest25-21ksoftirqd/107:55:251
134491500,5ptp4l0-21swapper/207:09:422
134491500,4ptp4l0-21swapper/207:54:042
134491500,3ptp4l0-21swapper/007:25:180
28545994833,8cyclictest25-21ksoftirqd/112:30:241
134491480,4ptp4l0-21swapper/010:38:470
134491480,4ptp4l0-21swapper/008:09:300
134491480,3ptp4l0-21swapper/010:01:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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