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2026-04-11 - 18:20
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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 Sat Apr 11, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
126262206173,22sleep20-21swapper/207:06:542
107352206172,22sleep30-21swapper/307:05:033
127072201168,22sleep10-21swapper/107:07:581
127882197164,22sleep00-21swapper/007:09:010
1857121540,6sleep21316699cyclictest10:40:202
2168421210,3sleep11316599cyclictest07:25:221
57898920,71rtkit-daemon0-21swapper/007:10:000
139391690,2ptp4l401ktimersoftd/311:45:253
310312680,4sleep10-21swapper/112:15:141
139391650,1ptp4l18547-21apt-get09:35:113
289722600,5sleep328976-21latency_hist08:50:003
114442600,2sleep00-21swapper/010:25:210
120982580,3sleep11316599cyclictest09:20:191
219972560,2sleep00-21swapper/007:25:260
279122550,2sleep30-21swapper/311:00:223
190032530,2sleep30-21swapper/310:40:243
139391510,1ptp4l401ktimersoftd/309:42:593
139391490,1ptp4l401ktimersoftd/310:16:303
139391480,1ptp4l401ktimersoftd/311:12:503
139391440,0ptp4l401ktimersoftd/307:17:113
139391430,1ptp4l401ktimersoftd/308:06:173
139391430,1ptp4l401ktimersoftd/308:06:173
139391430,0ptp4l401ktimersoftd/309:50:083
139391430,0ptp4l401ktimersoftd/308:30:183
1316699433,39cyclictest26085-21kworker/2:007:40:232
57898420,4rtkit-daemon4757-21grep10:10:270
139391410,0ptp4l401ktimersoftd/311:30:283
13167994136,3cyclictest41-21ksoftirqd/307:50:003
139391400,0ptp4l401ktimersoftd/312:15:263
13166994012,27cyclictest9542-21kworker/2:208:55:242
1316699394,33cyclictest9542-21kworker/2:208:26:442
13164993933,3cyclictest9-21ksoftirqd/010:20:000
57898380,1rtkit-daemon0-21swapper/310:29:393
13167993833,3cyclictest41-21ksoftirqd/311:30:003
139391370,1ptp4l401ktimersoftd/307:37:543
13167993732,3cyclictest41-21ksoftirqd/311:15:193
13167993732,3cyclictest41-21ksoftirqd/310:25:013
13167993731,4cyclictest41-21ksoftirqd/307:45:013
13167993731,3cyclictest41-21ksoftirqd/312:05:003
13167993727,9cyclictest41-21ksoftirqd/309:15:143
1316699379,26cyclictest7559-21kworker/2:011:35:232
13166993730,4cyclictest33-21ksoftirqd/212:39:382
13167993631,3cyclictest41-21ksoftirqd/312:25:003
13167993631,3cyclictest41-21ksoftirqd/310:35:003
13167993631,3cyclictest41-21ksoftirqd/308:40:263
13167993631,3cyclictest41-21ksoftirqd/308:00:003
13167993630,4cyclictest41-21ksoftirqd/312:39:273
13167993630,4cyclictest41-21ksoftirqd/311:22:093
13167993630,4cyclictest41-21ksoftirqd/311:22:083
1316699368,27cyclictest9542-21kworker/2:210:15:232
13166993630,4cyclictest33-21ksoftirqd/211:54:142
13166993630,4cyclictest33-21ksoftirqd/208:24:322
13166993630,3cyclictest33-21ksoftirqd/209:45:112
13165993631,3cyclictest25-21ksoftirqd/107:45:411
13165993630,4cyclictest25-21ksoftirqd/112:34:111
13165993630,4cyclictest25-21ksoftirqd/110:00:471
13165993630,4cyclictest25-21ksoftirqd/109:57:111
13165993630,4cyclictest25-21ksoftirqd/109:31:421
13165993629,5cyclictest25-21ksoftirqd/112:05:001
57898350,10rtkit-daemon0-21swapper/211:03:242
139391350,0ptp4l401ktimersoftd/309:30:163
13167993530,3cyclictest41-21ksoftirqd/311:50:123
13167993530,3cyclictest41-21ksoftirqd/311:35:173
13167993530,3cyclictest41-21ksoftirqd/308:15:003
13167993530,2cyclictest41-21ksoftirqd/312:30:003
13167993529,4cyclictest41-21ksoftirqd/309:21:253
13167993529,4cyclictest41-21ksoftirqd/308:15:553
13167993523,10cyclictest41-21ksoftirqd/310:50:263
13166993530,3cyclictest33-21ksoftirqd/212:28:342
13166993529,4cyclictest33-21ksoftirqd/211:44:302
13166993529,4cyclictest33-21ksoftirqd/211:11:082
13166993529,4cyclictest33-21ksoftirqd/209:01:102
13166993529,4cyclictest33-21ksoftirqd/208:05:352
13166993529,4cyclictest33-21ksoftirqd/208:05:352
13166993529,4cyclictest33-21ksoftirqd/207:20:462
13165993530,3cyclictest25-21ksoftirqd/110:23:061
13165993529,4cyclictest25-21ksoftirqd/112:13:171
13165993529,4cyclictest25-21ksoftirqd/110:43:071
13165993529,4cyclictest25-21ksoftirqd/110:12:101
13165993529,4cyclictest25-21ksoftirqd/109:05:321
13165993529,4cyclictest25-21ksoftirqd/108:58:411
13164993530,3cyclictest9-21ksoftirqd/012:35:120
13164993530,3cyclictest9-21ksoftirqd/010:57:590
13164993530,3cyclictest9-21ksoftirqd/008:46:570
13164993528,4cyclictest9-21ksoftirqd/007:47:430
13164993527,5cyclictest9-21ksoftirqd/009:10:140
13167993430,2cyclictest41-21ksoftirqd/309:25:133
13167993429,3cyclictest41-21ksoftirqd/308:40:013
13167993428,4cyclictest41-21ksoftirqd/312:31:243
13167993428,4cyclictest41-21ksoftirqd/311:08:563
13167993428,4cyclictest41-21ksoftirqd/310:10:073
13167993428,3cyclictest41-21ksoftirqd/312:00:003
13167993427,4cyclictest41-21ksoftirqd/307:10:483
13166993429,3cyclictest33-21ksoftirqd/210:36:382
13166993429,3cyclictest33-21ksoftirqd/209:40:112
13166993428,4cyclictest33-21ksoftirqd/208:53:132
13166993428,4cyclictest33-21ksoftirqd/208:11:012
13165993428,4cyclictest25-21ksoftirqd/112:05:311
13165993428,4cyclictest25-21ksoftirqd/111:53:551
13165993428,4cyclictest25-21ksoftirqd/111:28:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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