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2026-08-27 - 15:21
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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 Thu Aug 27, 2026 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205170,24phc2sys0-21swapper/319:05:083
77192198165,22sleep20-21swapper/219:05:562
77792197164,22sleep00-21swapper/019:06:430
77332196162,22sleep10-21swapper/119:06:071
1187121760,7sleep0832399cyclictest21:25:180
547121630,6sleep1832499cyclictest22:15:301
803228362,11sleep10-21swapper/119:10:021
8325996712,25cyclictest32688-21sed19:55:272
232182590,3sleep00-21swapper/022:55:010
50798500,2rtkit-daemon0-21swapper/022:59:250
50798460,2rtkit-daemon0-21swapper/022:06:250
138491460,1ptp4l401ktimersoftd/319:46:093
832399453,10cyclictest9-21ksoftirqd/023:55:000
832599441,23cyclictest976-21/usr/sbin/munin00:20:212
50798440,1rtkit-daemon0-21swapper/020:34:250
135191430,1getstats0-21swapper/300:10:473
135191430,1getstats0-21swapper/300:10:473
8326994210,8cyclictest41-21ksoftirqd/319:35:003
138491420,0ptp4l401ktimersoftd/321:03:523
8324994135,3cyclictest25-21ksoftirqd/122:40:001
832399418,9cyclictest9-21ksoftirqd/021:50:320
8323994135,3cyclictest9-21ksoftirqd/019:40:000
138491410,0ptp4l401ktimersoftd/320:15:203
135191410,2getstats832699cyclictest20:40:463
832599400,25cyclictest10403-21chrt00:36:522
8324994035,3cyclictest25-21ksoftirqd/120:40:001
8323994035,3cyclictest9-21ksoftirqd/020:20:010
8323994035,2cyclictest9-21ksoftirqd/021:10:000
832399403,2cyclictest9-21ksoftirqd/020:05:240
8324993934,3cyclictest25-21ksoftirqd/119:30:001
8324993933,3cyclictest25-21ksoftirqd/121:35:001
832399398,7cyclictest9-21ksoftirqd/022:20:160
832399395,3cyclictest9-21ksoftirqd/019:54:590
8323993927,3cyclictest9-21ksoftirqd/023:35:000
138491390,0ptp4l401ktimersoftd/300:35:373
138491390,0ptp4l401ktimersoftd/300:28:353
8326993834,2cyclictest41-21ksoftirqd/322:10:193
8326993834,2cyclictest41-21ksoftirqd/322:10:193
8326993833,3cyclictest41-21ksoftirqd/321:20:013
832599380,1cyclictest0-21swapper/219:15:242
8324993833,3cyclictest25-21ksoftirqd/123:45:001
8324993833,2cyclictest25-21ksoftirqd/123:39:591
8324993832,3cyclictest25-21ksoftirqd/121:55:181
832399385,3cyclictest9-21ksoftirqd/020:00:120
8323993833,3cyclictest9-21ksoftirqd/022:45:000
8323993833,3cyclictest9-21ksoftirqd/022:45:000
832399383,2cyclictest9-21ksoftirqd/021:00:250
8323993832,3cyclictest9-21ksoftirqd/023:40:180
8323993832,3cyclictest9-21ksoftirqd/021:10:170
8323993832,3cyclictest9-21ksoftirqd/021:10:160
8323993832,3cyclictest9-21ksoftirqd/019:20:230
138491380,0ptp4l401ktimersoftd/319:10:113
8326993730,4cyclictest41-21ksoftirqd/321:31:513
8325993731,4cyclictest33-21ksoftirqd/222:09:052
8325993731,4cyclictest33-21ksoftirqd/219:20:082
8325993730,5cyclictest33-21ksoftirqd/223:31:132
8325993730,4cyclictest33-21ksoftirqd/222:00:472
832599372,32cyclictest15230-21tail22:35:262
8324993732,3cyclictest25-21ksoftirqd/121:10:001
8324993732,3cyclictest25-21ksoftirqd/120:35:011
8324993732,3cyclictest25-21ksoftirqd/119:59:591
8324993732,3cyclictest25-21ksoftirqd/119:15:231
8324993731,4cyclictest25-21ksoftirqd/123:50:061
8324993731,4cyclictest25-21ksoftirqd/123:00:471
8324993731,4cyclictest25-21ksoftirqd/122:34:441
8324993731,3cyclictest25-21ksoftirqd/120:29:591
832399377,7cyclictest9-21ksoftirqd/023:00:150
8323993732,3cyclictest9-21ksoftirqd/023:20:000
8323993732,3cyclictest9-21ksoftirqd/021:45:000
8323993732,3cyclictest9-21ksoftirqd/021:45:000
8323993732,3cyclictest9-21ksoftirqd/019:15:000
8323993732,3cyclictest9-21ksoftirqd/000:10:270
8323993732,3cyclictest9-21ksoftirqd/000:10:260
8323993732,2cyclictest9-21ksoftirqd/019:35:010
8323993731,3cyclictest9-21ksoftirqd/000:00:000
832399371,3cyclictest9-21ksoftirqd/022:25:260
832399371,2cyclictest9-21ksoftirqd/000:20:240
832399370,2cyclictest121rcu_preempt22:35:130
8326993631,3cyclictest41-21ksoftirqd/323:45:003
8326993631,3cyclictest41-21ksoftirqd/319:20:013
8326993630,4cyclictest41-21ksoftirqd/323:15:023
8326993630,4cyclictest41-21ksoftirqd/320:14:463
8326993630,4cyclictest41-21ksoftirqd/320:14:453
8325993630,4cyclictest33-21ksoftirqd/223:47:182
8325993630,4cyclictest33-21ksoftirqd/221:10:402
8325993630,4cyclictest33-21ksoftirqd/221:10:402
8324993631,3cyclictest25-21ksoftirqd/122:55:181
8324993631,3cyclictest25-21ksoftirqd/122:10:181
8324993631,3cyclictest25-21ksoftirqd/122:10:181
8324993631,3cyclictest25-21ksoftirqd/121:50:001
8324993631,3cyclictest25-21ksoftirqd/120:10:131
8324993631,3cyclictest25-21ksoftirqd/120:10:121
8324993631,2cyclictest25-21ksoftirqd/120:10:001
8324993630,4cyclictest25-21ksoftirqd/123:21:581
8324993630,3cyclictest25-21ksoftirqd/122:55:011
8324993630,3cyclictest25-21ksoftirqd/121:00:021
8323993632,2cyclictest9-21ksoftirqd/019:45:000
8323993632,2cyclictest9-21ksoftirqd/000:10:000
8323993631,3cyclictest9-21ksoftirqd/023:30:000
8323993631,3cyclictest9-21ksoftirqd/022:00:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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