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2026-01-11 - 13:38
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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 Sun Jan 11, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
211022229163,22sleep00-21swapper/019:06:240
139491225197,19phc2sys0-21swapper/319:07:593
212042205172,22sleep20-21swapper/219:07:392
212082203170,22sleep10-21swapper/119:07:421
139391570,0ptp4l401ktimersoftd/322:25:153
216082530,6sleep321600-21missed_timers20:15:223
262322480,2sleep20-21swapper/221:35:012
57898470,12rtkit-daemon577-21rtkit-daemon00:33:400
139391420,0ptp4l401ktimersoftd/321:03:343
21678994136,3cyclictest25-21ksoftirqd/119:45:001
21677994034,3cyclictest9-21ksoftirqd/000:00:000
21677993934,3cyclictest9-21ksoftirqd/000:09:590
139391390,0ptp4l401ktimersoftd/320:38:583
21678993831,5cyclictest25-21ksoftirqd/100:34:191
21678993731,4cyclictest25-21ksoftirqd/120:30:291
21678993731,4cyclictest25-21ksoftirqd/120:30:291
21677993732,3cyclictest9-21ksoftirqd/022:40:000
139391370,0ptp4l401ktimersoftd/323:15:183
21680993629,4cyclictest41-21ksoftirqd/300:00:473
21679993631,3cyclictest33-21ksoftirqd/220:25:112
21679993630,4cyclictest33-21ksoftirqd/223:37:482
21679993630,4cyclictest33-21ksoftirqd/223:37:482
21679993630,4cyclictest33-21ksoftirqd/221:02:022
21679993618,16cyclictest33-21ksoftirqd/221:30:002
21678993630,4cyclictest25-21ksoftirqd/122:36:001
21678993630,4cyclictest25-21ksoftirqd/120:52:191
21678993630,4cyclictest25-21ksoftirqd/120:15:121
21678993630,4cyclictest25-21ksoftirqd/119:24:341
21678993630,4cyclictest25-21ksoftirqd/119:24:341
21677993632,2cyclictest29804-21cron20:34:590
21677993632,2cyclictest29804-21cron20:34:590
21677993631,3cyclictest9-21ksoftirqd/022:45:000
21677993631,3cyclictest9-21ksoftirqd/000:16:490
21680993529,4cyclictest41-21ksoftirqd/323:58:463
21680993529,4cyclictest41-21ksoftirqd/319:47:553
21679993530,2cyclictest33-21ksoftirqd/219:40:002
21679993529,4cyclictest33-21ksoftirqd/222:40:072
21679993529,4cyclictest33-21ksoftirqd/221:14:262
21679993529,4cyclictest33-21ksoftirqd/200:23:002
21679993529,4cyclictest33-21ksoftirqd/200:18:082
21679993529,3cyclictest33-21ksoftirqd/219:54:542
21678993530,3cyclictest25-21ksoftirqd/123:58:001
21678993530,3cyclictest25-21ksoftirqd/121:55:001
21678993530,3cyclictest25-21ksoftirqd/121:40:171
21678993530,3cyclictest25-21ksoftirqd/119:35:091
21678993530,3cyclictest25-21ksoftirqd/100:35:121
21678993529,4cyclictest25-21ksoftirqd/123:49:221
21678993529,4cyclictest25-21ksoftirqd/121:23:491
21678993529,4cyclictest25-21ksoftirqd/121:13:181
21678993529,4cyclictest25-21ksoftirqd/120:56:441
21678993529,4cyclictest25-21ksoftirqd/120:29:091
21678993529,4cyclictest25-21ksoftirqd/120:20:501
21678993529,4cyclictest25-21ksoftirqd/119:33:241
21677993529,4cyclictest9-21ksoftirqd/020:27:270
139391350,0ptp4l401ktimersoftd/320:50:113
21680993429,3cyclictest41-21ksoftirqd/321:24:193
21680993428,4cyclictest41-21ksoftirqd/323:28:133
21680993428,4cyclictest41-21ksoftirqd/321:29:353
21680993428,4cyclictest41-21ksoftirqd/320:24:093
21680993428,4cyclictest41-21ksoftirqd/320:13:013
21680993428,4cyclictest41-21ksoftirqd/319:12:173
21679993429,3cyclictest33-21ksoftirqd/223:05:532
21679993429,3cyclictest33-21ksoftirqd/220:08:442
21679993428,4cyclictest33-21ksoftirqd/221:18:552
21679993428,3cyclictest33-21ksoftirqd/222:05:142
21679993428,3cyclictest33-21ksoftirqd/200:40:002
21679993427,4cyclictest33-21ksoftirqd/220:35:592
21678993429,3cyclictest25-21ksoftirqd/121:28:571
21678993428,4cyclictest25-21ksoftirqd/123:36:381
21678993428,4cyclictest25-21ksoftirqd/123:36:381
21678993428,4cyclictest25-21ksoftirqd/123:12:271
21678993428,4cyclictest25-21ksoftirqd/121:59:301
21678993428,4cyclictest25-21ksoftirqd/120:43:411
21678993428,4cyclictest25-21ksoftirqd/120:38:071
21678993428,4cyclictest25-21ksoftirqd/119:46:291
21678993428,4cyclictest25-21ksoftirqd/100:18:301
21678993428,4cyclictest25-21ksoftirqd/100:12:001
21678993427,5cyclictest25-21ksoftirqd/100:05:461
21677993430,2cyclictest9-21ksoftirqd/000:25:010
21677993429,3cyclictest9-21ksoftirqd/023:25:010
21677993429,3cyclictest9-21ksoftirqd/022:15:210
21677993429,3cyclictest9-21ksoftirqd/019:30:110
21677993429,3cyclictest9-21ksoftirqd/019:10:190
21677993428,4cyclictest9-21ksoftirqd/023:09:540
21677993428,4cyclictest9-21ksoftirqd/022:54:330
21677993428,4cyclictest9-21ksoftirqd/000:26:070
21677993428,3cyclictest19462-21wc23:35:120
21677993428,3cyclictest19462-21wc23:35:120
139391340,0ptp4l401ktimersoftd/323:35:143
139391340,0ptp4l401ktimersoftd/323:35:143
21680993327,4cyclictest41-21ksoftirqd/323:22:483
21680993327,4cyclictest41-21ksoftirqd/322:19:503
21680993327,4cyclictest41-21ksoftirqd/321:11:233
21680993327,4cyclictest41-21ksoftirqd/300:39:313
21680993326,4cyclictest41-21ksoftirqd/320:48:113
21679993327,4cyclictest33-21ksoftirqd/223:04:422
21679993327,4cyclictest33-21ksoftirqd/221:59:472
21679993327,4cyclictest33-21ksoftirqd/221:49:132
21679993327,4cyclictest33-21ksoftirqd/221:42:232
21679993327,4cyclictest33-21ksoftirqd/220:31:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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