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2026-03-13 - 10:50
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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 Fri Mar 13, 2026 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
107692232168,22sleep00-21swapper/019:08:540
139491224195,19phc2sys0-21swapper/319:07:593
105642204168,24sleep20-21swapper/219:06:232
87182202169,22sleep10-21swapper/119:05:091
156721290,5sleep21114899cyclictest19:55:242
1073221160,3sleep21114899cyclictest22:30:202
139391630,1ptp4l401ktimersoftd/323:45:393
38192590,1sleep20-21swapper/223:25:012
139391540,1ptp4l401ktimersoftd/321:55:233
139391540,1ptp4l391rcuc/322:50:153
139391540,1ptp4l391rcuc/322:50:153
139391530,1ptp4l401ktimersoftd/322:49:543
76252500,2sleep10-21swapper/120:10:121
242402500,2sleep10-21swapper/123:00:131
139391490,1ptp4l23669-21grep21:50:183
11148994615,29cyclictest4582-21kworker/2:120:20:242
139391440,0ptp4l401ktimersoftd/319:24:183
139391430,0ptp4l401ktimersoftd/319:45:263
134491420,1getstats0-21swapper/300:25:133
11149994238,2cyclictest9545-21latency_hist20:15:003
11146994136,2cyclictest15666-21cron19:19:590
11146994035,3cyclictest32303-21cron22:10:000
139391390,1ptp4l401ktimersoftd/321:42:443
11149993935,2cyclictest41-21ksoftirqd/323:00:013
11149993834,2cyclictest41-21ksoftirqd/323:35:003
11149993834,2cyclictest41-21ksoftirqd/321:20:003
11146993731,4cyclictest9-21ksoftirqd/019:15:000
11149993633,2cyclictest41-21ksoftirqd/320:30:013
11149993632,2cyclictest41-21ksoftirqd/319:40:003
11149993631,3cyclictest41-21ksoftirqd/321:09:593
11149993630,4cyclictest17789-21cron21:40:003
11147993630,4cyclictest25-21ksoftirqd/123:43:041
11147993630,4cyclictest25-21ksoftirqd/122:20:421
11146993631,3cyclictest9-21ksoftirqd/020:40:000
1114699361,2cyclictest121rcu_preempt21:59:080
11149993531,2cyclictest41-21ksoftirqd/322:39:593
11149993531,2cyclictest41-21ksoftirqd/320:45:193
11149993531,2cyclictest41-21ksoftirqd/300:25:003
11149993530,3cyclictest41-21ksoftirqd/323:50:193
11149993530,3cyclictest41-21ksoftirqd/321:50:003
11149993529,4cyclictest41-21ksoftirqd/323:29:513
11149993529,4cyclictest41-21ksoftirqd/320:21:323
11149993529,4cyclictest41-21ksoftirqd/319:30:123
11149993529,3cyclictest41-21ksoftirqd/320:55:123
11148993529,4cyclictest33-21ksoftirqd/222:02:012
11148993529,4cyclictest33-21ksoftirqd/221:44:352
11148993529,4cyclictest33-21ksoftirqd/219:16:322
11148993529,4cyclictest33-21ksoftirqd/200:15:512
11147993530,3cyclictest25-21ksoftirqd/122:50:111
11147993530,3cyclictest25-21ksoftirqd/122:50:101
11147993530,3cyclictest25-21ksoftirqd/122:19:571
11147993529,4cyclictest25-21ksoftirqd/123:16:411
11147993529,4cyclictest25-21ksoftirqd/122:45:441
11147993529,4cyclictest25-21ksoftirqd/122:40:301
11147993529,4cyclictest25-21ksoftirqd/122:08:171
11147993529,4cyclictest25-21ksoftirqd/121:50:401
11146993529,4cyclictest9-21ksoftirqd/000:37:400
139391340,1ptp4l401ktimersoftd/320:05:123
11149993430,2cyclictest41-21ksoftirqd/323:20:003
11149993430,2cyclictest41-21ksoftirqd/323:00:283
11149993429,3cyclictest41-21ksoftirqd/320:31:043
11149993429,3cyclictest41-21ksoftirqd/319:25:123
11149993428,4cyclictest41-21ksoftirqd/323:24:093
11149993428,4cyclictest41-21ksoftirqd/323:11:253
11149993428,4cyclictest41-21ksoftirqd/319:11:573
11148993428,4cyclictest33-21ksoftirqd/223:29:512
11148993428,4cyclictest33-21ksoftirqd/221:58:162
11148993428,4cyclictest33-21ksoftirqd/221:15:322
11148993428,4cyclictest33-21ksoftirqd/220:35:522
11148993425,6cyclictest33-21ksoftirqd/220:07:032
11147993429,3cyclictest25-21ksoftirqd/123:51:201
11147993429,3cyclictest25-21ksoftirqd/123:45:111
11147993428,4cyclictest25-21ksoftirqd/123:08:151
11147993428,4cyclictest25-21ksoftirqd/121:27:581
11147993428,4cyclictest25-21ksoftirqd/120:01:371
11147993428,4cyclictest25-21ksoftirqd/119:59:531
11147993428,4cyclictest25-21ksoftirqd/100:01:591
11147993427,4cyclictest25-21ksoftirqd/122:33:211
11146993428,4cyclictest9-21ksoftirqd/021:15:380
11149993329,3cyclictest41-21ksoftirqd/321:00:193
11149993328,3cyclictest41-21ksoftirqd/323:42:063
11149993328,3cyclictest41-21ksoftirqd/300:30:193
11149993328,3cyclictest41-21ksoftirqd/300:10:203
11149993327,4cyclictest41-21ksoftirqd/322:44:053
11149993327,4cyclictest41-21ksoftirqd/322:26:333
11149993327,4cyclictest41-21ksoftirqd/321:27:563
11149993326,4cyclictest41-21ksoftirqd/319:15:243
11148993328,3cyclictest33-21ksoftirqd/221:25:032
11148993328,3cyclictest33-21ksoftirqd/200:38:512
11148993328,3cyclictest33-21ksoftirqd/200:01:122
11148993327,4cyclictest33-21ksoftirqd/223:49:112
11148993327,4cyclictest33-21ksoftirqd/223:02:222
11148993327,4cyclictest33-21ksoftirqd/222:25:552
11148993327,4cyclictest33-21ksoftirqd/220:19:282
11147993327,4cyclictest25-21ksoftirqd/121:58:461
11147993327,4cyclictest25-21ksoftirqd/121:46:361
11147993327,4cyclictest25-21ksoftirqd/121:35:491
11147993327,4cyclictest25-21ksoftirqd/119:15:481
1114799330,3cyclictest32387-21grep19:55:001
11146993328,3cyclictest9-21ksoftirqd/019:35:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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