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2026-01-12 - 05:50
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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 Mon Jan 12, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253652206173,22sleep10-21swapper/119:08:271
254542205170,23sleep30-21swapper/319:09:383
254262203170,22sleep00-21swapper/019:09:160
254482199166,22sleep20-21swapper/219:09:342
25930995811,12cyclictest19580-21kworker/3:120:22:333
2593099560,22cyclictest13215-21taskset00:19:013
139391520,1ptp4l391rcuc/300:06:133
25929994336,4cyclictest493-21cron19:25:002
25926994236,3cyclictest26773-21irqrtprio21:25:180
139391420,0ptp4l401ktimersoftd/322:38:383
139391420,0ptp4l401ktimersoftd/321:06:043
139391420,0ptp4l401ktimersoftd/320:44:013
139391420,0ptp4l401ktimersoftd/319:54:353
25930994136,3cyclictest11307-21sshd20:51:253
25926994136,3cyclictest9-21ksoftirqd/021:40:010
139391410,0ptp4l401ktimersoftd/320:10:363
139391410,0ptp4l401ktimersoftd/320:00:053
2593099400,24cyclictest315482chrt22:43:593
25927994035,3cyclictest25-21ksoftirqd/123:20:011
25926994035,3cyclictest9-21ksoftirqd/020:40:000
139391400,0ptp4l401ktimersoftd/323:18:503
25926993934,3cyclictest25867-21cron21:25:000
2593099380,17cyclictest12837-21/usr/sbin/munin22:05:133
25929993831,4cyclictest13962-21cron21:00:002
2592999380,1cyclictest0-21swapper/222:25:332
25927993831,5cyclictest25-21ksoftirqd/119:12:361
25926993833,3cyclictest9-21ksoftirqd/021:19:590
25926993831,4cyclictest9-21ksoftirqd/021:08:590
25926993831,4cyclictest9-21ksoftirqd/020:20:000
139391380,1ptp4l391rcuc/323:00:173
139391380,0ptp4l401ktimersoftd/321:34:443
25927993731,4cyclictest25-21ksoftirqd/120:05:471
25926993732,3cyclictest9-21ksoftirqd/022:30:150
25926993732,3cyclictest9-21ksoftirqd/022:00:180
25926993732,3cyclictest9-21ksoftirqd/000:39:590
25926993732,3cyclictest9-21ksoftirqd/000:10:170
25926993731,3cyclictest9-21ksoftirqd/023:34:590
57898360,1rtkit-daemon0-21swapper/220:01:552
25930993630,4cyclictest41-21ksoftirqd/323:57:563
25930993630,4cyclictest41-21ksoftirqd/319:35:493
2593099360,1cyclictest0-21swapper/319:11:123
25927993631,3cyclictest25-21ksoftirqd/100:20:131
25927993630,4cyclictest25-21ksoftirqd/123:57:261
25927993630,4cyclictest25-21ksoftirqd/122:46:581
25927993630,4cyclictest25-21ksoftirqd/122:18:261
25927993630,4cyclictest25-21ksoftirqd/120:57:141
25927993630,4cyclictest25-21ksoftirqd/120:41:541
25926993633,2cyclictest9-21ksoftirqd/021:00:000
25926993631,3cyclictest9-21ksoftirqd/023:50:000
25926993631,3cyclictest9-21ksoftirqd/021:40:190
25926993631,3cyclictest9-21ksoftirqd/000:04:590
25926993630,3cyclictest9-21ksoftirqd/023:29:590
25926993630,3cyclictest9-21ksoftirqd/019:10:120
25930993529,4cyclictest41-21ksoftirqd/320:17:373
25930993529,3cyclictest41-21ksoftirqd/320:30:003
2593099350,22cyclictest16789-21cat22:10:263
25929993529,4cyclictest33-21ksoftirqd/221:45:092
25929993529,4cyclictest33-21ksoftirqd/221:38:032
25929993529,4cyclictest33-21ksoftirqd/219:55:292
25929993529,4cyclictest33-21ksoftirqd/219:41:252
25927993531,2cyclictest25-21ksoftirqd/120:50:001
25927993529,4cyclictest25-21ksoftirqd/123:52:051
25927993529,4cyclictest25-21ksoftirqd/122:12:521
25927993529,4cyclictest25-21ksoftirqd/121:53:591
25927993529,4cyclictest25-21ksoftirqd/121:07:491
25927993529,4cyclictest25-21ksoftirqd/120:51:371
25927993529,4cyclictest25-21ksoftirqd/119:38:111
25927993528,5cyclictest25-21ksoftirqd/123:08:481
25926993531,2cyclictest9-21ksoftirqd/021:50:010
25926993531,2cyclictest9-21ksoftirqd/020:50:190
25926993531,2cyclictest9-21ksoftirqd/020:20:170
25926993530,3cyclictest9-21ksoftirqd/023:39:590
25926993530,3cyclictest9-21ksoftirqd/023:20:000
25926993530,3cyclictest9-21ksoftirqd/022:35:170
25926993530,3cyclictest9-21ksoftirqd/020:35:010
25926993530,3cyclictest9-21ksoftirqd/020:00:000
25926993529,4cyclictest9-21ksoftirqd/019:19:130
25926993529,3cyclictest9-21ksoftirqd/023:50:170
25926993529,3cyclictest9-21ksoftirqd/021:59:590
25926993529,3cyclictest9-21ksoftirqd/021:35:010
57898340,4rtkit-daemon22330-21cpu20:10:140
57898340,1rtkit-daemon0-21swapper/020:05:220
25930993428,4cyclictest41-21ksoftirqd/323:52:473
25930993428,4cyclictest41-21ksoftirqd/322:26:143
25930993428,4cyclictest41-21ksoftirqd/300:39:113
2593099341,20cyclictest0-21swapper/300:10:073
25929993428,4cyclictest33-21ksoftirqd/223:16:182
25929993428,4cyclictest33-21ksoftirqd/222:08:362
25929993428,4cyclictest33-21ksoftirqd/221:08:422
25929993428,4cyclictest33-21ksoftirqd/219:33:232
25927993429,3cyclictest25-21ksoftirqd/100:33:491
25927993428,4cyclictest25-21ksoftirqd/122:05:301
25927993428,4cyclictest25-21ksoftirqd/121:49:251
25927993428,4cyclictest25-21ksoftirqd/121:43:071
25927993428,4cyclictest25-21ksoftirqd/121:20:111
25927993428,4cyclictest25-21ksoftirqd/121:02:361
25927993428,4cyclictest25-21ksoftirqd/120:00:301
25927993428,4cyclictest25-21ksoftirqd/100:11:421
25927993427,4cyclictest25-21ksoftirqd/121:36:201
25926993430,2cyclictest9-21ksoftirqd/022:25:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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