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2026-08-19 - 00:40
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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 Tue Aug 18, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205174,20phc2sys0-21swapper/307:06:033
170202203171,21sleep20-21swapper/207:05:512
170232202167,23sleep00-21swapper/007:05:540
170192200167,22sleep10-21swapper/107:05:511
586821330,2sleep31764099cyclictest10:00:193
1734628261,11sleep10-21swapper/107:10:011
113362690,2sleep30-21swapper/310:10:273
1385916045,8phc2sys0-21swapper/307:10:013
138491580,1ptp4l401ktimersoftd/309:39:523
55572550,1sleep20-21swapper/212:10:162
17638995320,4cyclictest25-21ksoftirqd/109:35:001
17638995121,4cyclictest25-21ksoftirqd/110:30:231
17638995121,4cyclictest25-21ksoftirqd/110:30:231
17638995121,3cyclictest25-21ksoftirqd/109:20:181
82222500,4sleep11763899cyclictest07:55:161
17638994814,8cyclictest25-21ksoftirqd/111:40:001
17638994720,8cyclictest25-21ksoftirqd/108:20:221
17638994716,4cyclictest25-21ksoftirqd/107:50:191
147742470,2sleep314777-21cpuspeed10:20:133
17638994618,4cyclictest25-21ksoftirqd/111:20:161
17638994615,4cyclictest25-21ksoftirqd/108:35:191
17638994614,6cyclictest25-21ksoftirqd/111:25:191
17638994611,10cyclictest25-21ksoftirqd/108:50:001
17638994520,6cyclictest25-21ksoftirqd/109:55:221
17638994512,7cyclictest25-21ksoftirqd/108:40:141
1763899447,6cyclictest25-21ksoftirqd/112:35:191
1763899444,8cyclictest25-21ksoftirqd/110:55:201
17638994434,3cyclictest25-21ksoftirqd/107:25:001
17638994417,7cyclictest25-21ksoftirqd/111:55:231
17638994417,7cyclictest25-21ksoftirqd/110:50:241
17638994416,3cyclictest25-21ksoftirqd/109:25:131
17638994411,8cyclictest25-21ksoftirqd/112:30:181
1763899439,7cyclictest25-21ksoftirqd/112:00:161
1763899433,8cyclictest25-21ksoftirqd/112:10:151
1763899433,8cyclictest25-21ksoftirqd/109:10:131
17638994316,7cyclictest25-21ksoftirqd/110:40:161
17638994311,4cyclictest25-21ksoftirqd/112:05:141
17638994310,4cyclictest25-21ksoftirqd/112:15:231
17638994230,10cyclictest25-21ksoftirqd/107:15:201
1763899421,9cyclictest25-21ksoftirqd/109:45:281
17638994217,6cyclictest25-21ksoftirqd/112:25:251
1763899421,5cyclictest25-21ksoftirqd/111:30:241
17638994214,4cyclictest25-21ksoftirqd/110:13:481
17638994213,4cyclictest25-21ksoftirqd/109:19:451
17638994213,4cyclictest25-21ksoftirqd/109:05:141
138491420,0ptp4l401ktimersoftd/308:59:023
138491420,0ptp4l401ktimersoftd/307:25:323
17639994136,3cyclictest7005-21idleruntime-cro11:10:002
1763899417,7cyclictest25-21ksoftirqd/109:35:201
1763899417,4cyclictest25-21ksoftirqd/111:50:241
1763899417,4cyclictest25-21ksoftirqd/109:40:201
1763899414,8cyclictest25-21ksoftirqd/108:10:221
1763899413,7cyclictest25-21ksoftirqd/111:00:221
17638994127,11cyclictest25-21ksoftirqd/107:40:241
1763899411,5cyclictest25-21ksoftirqd/112:20:241
17638994112,3cyclictest25-21ksoftirqd/111:16:061
138491410,0ptp4l401ktimersoftd/309:17:443
1763899407,9cyclictest25-21ksoftirqd/111:05:251
1763899405,9cyclictest25-21ksoftirqd/108:55:211
1763899403,9cyclictest25-21ksoftirqd/111:10:251
17638994034,3cyclictest25-21ksoftirqd/110:00:131
17638994010,3cyclictest25-21ksoftirqd/108:50:151
138491400,0ptp4l401ktimersoftd/308:35:103
138491400,0ptp4l401ktimersoftd/307:50:183
50798390,2rtkit-daemon506-21rtkit-daemon09:25:190
17639993928,9cyclictest33-21ksoftirqd/210:20:252
1763899398,6cyclictest25-21ksoftirqd/108:25:191
1763899397,7cyclictest25-21ksoftirqd/108:00:221
17638993934,3cyclictest25-21ksoftirqd/108:20:001
17638993933,3cyclictest25-21ksoftirqd/110:20:001
17638993931,2cyclictest25-21ksoftirqd/110:25:261
17638993913,8cyclictest25-21ksoftirqd/110:39:591
17640993831,3cyclictest41-21ksoftirqd/312:24:303
1763899385,7cyclictest25-21ksoftirqd/110:45:201
1763899385,3cyclictest121rcu_preempt11:45:171
17638993833,3cyclictest25-21ksoftirqd/109:00:181
17638993833,3cyclictest25-21ksoftirqd/109:00:171
1763899381,9cyclictest25-21ksoftirqd/109:50:161
1763899381,2cyclictest121rcu_preempt11:40:251
1763899381,2cyclictest121rcu_preempt08:34:591
138491380,0ptp4l401ktimersoftd/308:45:203
17640993732,3cyclictest41-21ksoftirqd/309:05:123
17639993732,3cyclictest33-21ksoftirqd/209:45:002
17639993732,3cyclictest33-21ksoftirqd/207:40:002
17639993732,3cyclictest1328-21sshd09:23:592
17639993731,4cyclictest33-21ksoftirqd/212:30:312
17638993734,2cyclictest25-21ksoftirqd/107:50:001
17638993731,3cyclictest25-21ksoftirqd/110:20:141
17638993731,3cyclictest25-21ksoftirqd/107:35:241
17638993730,4cyclictest25-21ksoftirqd/107:25:561
17640993630,4cyclictest41-21ksoftirqd/308:52:563
17639993631,3cyclictest33-21ksoftirqd/210:35:122
17639993630,4cyclictest33-21ksoftirqd/211:04:492
17639993630,4cyclictest33-21ksoftirqd/208:40:382
17639993630,4cyclictest33-21ksoftirqd/208:00:402
17639993629,5cyclictest33-21ksoftirqd/209:34:472
17639993629,4cyclictest33-21ksoftirqd/207:21:082
1763899366,9cyclictest25-21ksoftirqd/108:05:141
17638993630,3cyclictest25-21ksoftirqd/107:35:001
17637993631,3cyclictest9-21ksoftirqd/010:15:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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