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2026-03-23 - 20:24
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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 Mon Mar 23, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138582206174,21sleep10-21swapper/107:09:021
137402205172,22sleep20-21swapper/207:07:302
138612204169,23sleep30-21swapper/307:09:043
138832201168,22sleep00-21swapper/007:09:210
2416421450,6sleep21423699cyclictest08:35:272
1423599686,60cyclictest0-21swapper/110:10:531
139812530,2sleep00-21swapper/010:30:210
1423699512,47cyclictest7021-21kworker/2:207:55:232
1423599495,5cyclictest0-21swapper/107:48:121
95212480,5sleep21423699cyclictest09:15:142
1423599479,36cyclictest0-21swapper/112:20:331
1423699442,41cyclictest30041-21kworker/2:211:50:342
14236994414,28cyclictest29053-21kworker/2:210:10:242
14234994437,4cyclictest26141-21cron07:35:000
14237994337,3cyclictest3006-21cron10:10:013
1423699430,42cyclictest0-21swapper/207:10:232
57898420,9rtkit-daemon0-21swapper/009:28:230
14236994215,26cyclictest30041-21kworker/2:211:35:242
1423699420,41cyclictest0-21swapper/209:55:222
139391420,0ptp4l401ktimersoftd/310:35:013
139391420,0ptp4l401ktimersoftd/307:35:203
1423699412,2cyclictest8414-21kworker/2:010:50:342
1423599413,3cyclictest121rcu_preempt10:45:131
139391410,0ptp4l401ktimersoftd/312:29:283
14236994012,26cyclictest0-21swapper/209:25:232
1423599407,5cyclictest25-21ksoftirqd/108:20:141
139391400,1ptp4l401ktimersoftd/311:11:553
57898390,4rtkit-daemon0-21swapper/008:17:130
14237993932,4cyclictest18688-21apt11:50:003
14236993918,19cyclictest33-21ksoftirqd/209:47:032
1423599390,14cyclictest5927-21ssh11:20:251
139391390,16ptp4l401ktimersoftd/311:29:023
1423699381,17cyclictest2012-21cat09:00:012
1423599380,8cyclictest32512-21hddtemp_smartct11:10:161
14236993710,26cyclictest0-21swapper/209:20:232
1423699370,4cyclictest19686-21cron10:45:002
14235993731,4cyclictest531-21cron10:05:011
14235993731,4cyclictest25-21ksoftirqd/109:23:431
14234993731,3cyclictest9180-21cron09:15:000
139391370,0ptp4l401ktimersoftd/310:40:153
14237993631,3cyclictest41-21ksoftirqd/311:10:013
14237993630,4cyclictest41-21ksoftirqd/312:34:453
14237993630,4cyclictest41-21ksoftirqd/309:30:363
14237993630,4cyclictest41-21ksoftirqd/309:24:213
14237993630,4cyclictest41-21ksoftirqd/309:03:363
14237993630,4cyclictest41-21ksoftirqd/308:11:173
14236993630,4cyclictest33-21ksoftirqd/211:03:492
14236993630,4cyclictest33-21ksoftirqd/210:09:412
14236993630,4cyclictest33-21ksoftirqd/209:31:192
14236993630,4cyclictest33-21ksoftirqd/207:19:012
14235993631,3cyclictest25-21ksoftirqd/111:41:301
14235993631,3cyclictest25-21ksoftirqd/108:10:101
14235993630,3cyclictest3280-21cron07:54:591
14237993529,4cyclictest41-21ksoftirqd/312:05:313
14237993529,4cyclictest41-21ksoftirqd/312:00:113
14237993529,4cyclictest41-21ksoftirqd/308:32:353
14237993528,4cyclictest41-21ksoftirqd/308:00:593
14237993528,4cyclictest41-21ksoftirqd/307:20:593
14236993530,3cyclictest33-21ksoftirqd/209:07:082
14236993529,4cyclictest33-21ksoftirqd/212:18:512
14236993529,4cyclictest33-21ksoftirqd/209:12:502
14236993529,4cyclictest33-21ksoftirqd/209:04:142
14236993528,4cyclictest33-21ksoftirqd/207:54:032
14235993529,4cyclictest25-21ksoftirqd/112:30:051
14235993529,4cyclictest25-21ksoftirqd/108:08:061
14235993529,4cyclictest25-21ksoftirqd/108:08:061
14235993514,7cyclictest25-21ksoftirqd/109:37:141
14235993513,3cyclictest25-21ksoftirqd/109:16:111
14234993529,4cyclictest9-21ksoftirqd/012:32:200
14234993529,4cyclictest9-21ksoftirqd/011:13:290
14234993529,4cyclictest9-21ksoftirqd/010:56:130
14234993529,4cyclictest9-21ksoftirqd/010:43:250
14234993529,4cyclictest9-21ksoftirqd/008:40:180
14237993429,3cyclictest41-21ksoftirqd/309:53:243
14237993429,3cyclictest41-21ksoftirqd/309:53:233
14237993428,4cyclictest41-21ksoftirqd/309:57:153
14237993428,4cyclictest41-21ksoftirqd/309:39:103
14237993428,4cyclictest41-21ksoftirqd/309:27:553
14237993428,4cyclictest41-21ksoftirqd/308:57:263
14237993427,5cyclictest41-21ksoftirqd/311:34:233
14236993429,3cyclictest33-21ksoftirqd/207:32:402
14236993428,4cyclictest33-21ksoftirqd/211:57:242
14236993428,4cyclictest33-21ksoftirqd/210:03:032
14236993428,4cyclictest33-21ksoftirqd/208:45:502
14236993428,4cyclictest33-21ksoftirqd/208:15:372
14236993428,4cyclictest33-21ksoftirqd/208:04:062
14236993428,4cyclictest33-21ksoftirqd/207:48:092
14236993428,4cyclictest33-21ksoftirqd/207:26:342
1423699340,3cyclictest18349-1kworker/2:1H11:50:012
14235993429,3cyclictest25-21ksoftirqd/111:30:001
14235993428,4cyclictest25-21ksoftirqd/111:02:001
14235993428,4cyclictest25-21ksoftirqd/109:04:341
14235993428,4cyclictest25-21ksoftirqd/108:57:001
14235993428,4cyclictest25-21ksoftirqd/108:01:121
14234993428,4cyclictest9-21ksoftirqd/011:03:300
14234993428,4cyclictest9-21ksoftirqd/010:16:380
14234993428,4cyclictest9-21ksoftirqd/009:53:470
14234993428,4cyclictest9-21ksoftirqd/009:53:470
14234993428,4cyclictest9-21ksoftirqd/008:50:450
14234993428,4cyclictest9-21ksoftirqd/007:57:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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