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2026-08-06 - 15:22
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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 Thu Aug 06, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179102206172,22sleep20-21swapper/219:08:032
139491206173,22phc2sys0-21swapper/319:09:223
179132204171,22sleep00-21swapper/019:08:050
159392204170,23sleep10-21swapper/119:05:091
1393911270,1ptp4l9099-21threads19:55:253
1394918464,11phc2sys0-21swapper/319:10:013
191092630,6sleep31835899cyclictest22:30:263
139391570,0ptp4l401ktimersoftd/321:11:503
139391540,1ptp4l391rcuc/321:50:443
261382530,3sleep09-21ksoftirqd/019:25:180
113812530,1sleep00-21swapper/020:00:230
139391500,9ptp4l0-21swapper/321:40:143
18357994540,3cyclictest1555-21turbostat.cron20:50:012
134491440,1getstats0-21swapper/300:00:243
57898430,8rtkit-daemon0-21swapper/119:40:321
139391430,0ptp4l401ktimersoftd/320:28:483
139391420,0ptp4l401ktimersoftd/322:59:363
57898410,1rtkit-daemon0-21swapper/100:25:441
139391400,0ptp4l401ktimersoftd/323:49:383
139391400,0ptp4l401ktimersoftd/321:15:313
139391400,0ptp4l401ktimersoftd/320:22:493
18358993833,3cyclictest41-21ksoftirqd/320:35:133
18358993832,3cyclictest41-21ksoftirqd/320:45:103
57898370,4rtkit-daemon14223-21hddtemp_smartct23:30:171
18358993730,4cyclictest41-21ksoftirqd/323:25:023
18356993731,4cyclictest25-21ksoftirqd/123:50:111
18358993631,3cyclictest41-21ksoftirqd/322:40:173
18358993631,3cyclictest41-21ksoftirqd/322:40:173
18358993631,3cyclictest41-21ksoftirqd/322:20:593
18358993631,3cyclictest41-21ksoftirqd/319:50:153
18358993631,3cyclictest3974-21cron20:55:003
18358993631,3cyclictest32581-21idleruntime-cro19:39:593
18358993630,4cyclictest41-21ksoftirqd/320:41:263
18357993631,3cyclictest33-21ksoftirqd/222:00:342
18357993630,4cyclictest33-21ksoftirqd/223:04:312
18357993630,4cyclictest33-21ksoftirqd/220:00:212
18356993631,3cyclictest9913-21uname21:05:221
18356993631,3cyclictest25-21ksoftirqd/119:15:001
18356993630,4cyclictest25-21ksoftirqd/123:15:101
18356993630,4cyclictest25-21ksoftirqd/119:39:581
18356993630,4cyclictest25-21ksoftirqd/119:29:031
18356993629,5cyclictest25-21ksoftirqd/100:38:291
18355993630,4cyclictest9-21ksoftirqd/022:15:000
18355993630,4cyclictest9-21ksoftirqd/022:15:000
18355993630,4cyclictest9-21ksoftirqd/020:06:130
18358993529,4cyclictest41-21ksoftirqd/321:25:313
18358993529,4cyclictest41-21ksoftirqd/300:38:593
18358993529,3cyclictest41-21ksoftirqd/323:30:153
18357993529,4cyclictest33-21ksoftirqd/223:48:002
18357993529,4cyclictest33-21ksoftirqd/223:33:352
18357993529,4cyclictest33-21ksoftirqd/223:21:242
18357993529,4cyclictest33-21ksoftirqd/219:47:592
18356993529,4cyclictest25-21ksoftirqd/123:57:291
18356993529,4cyclictest25-21ksoftirqd/123:42:171
18356993529,4cyclictest25-21ksoftirqd/122:26:231
18356993529,4cyclictest25-21ksoftirqd/122:08:381
18356993529,4cyclictest25-21ksoftirqd/121:37:171
18356993529,4cyclictest25-21ksoftirqd/120:55:581
18356993529,4cyclictest25-21ksoftirqd/120:53:401
18355993529,4cyclictest9-21ksoftirqd/023:34:140
18355993529,4cyclictest9-21ksoftirqd/021:20:590
18358993430,3cyclictest41-21ksoftirqd/321:35:003
18358993429,3cyclictest41-21ksoftirqd/323:55:113
18358993429,3cyclictest41-21ksoftirqd/319:15:593
18358993428,4cyclictest41-21ksoftirqd/323:38:183
18358993428,4cyclictest41-21ksoftirqd/323:05:363
18357993428,4cyclictest33-21ksoftirqd/223:14:182
18357993428,4cyclictest33-21ksoftirqd/223:07:202
18357993428,4cyclictest33-21ksoftirqd/222:58:332
18357993428,4cyclictest33-21ksoftirqd/221:06:292
18357993428,4cyclictest33-21ksoftirqd/219:24:432
18357993428,4cyclictest33-21ksoftirqd/219:15:522
18357993428,4cyclictest33-21ksoftirqd/219:11:192
18356993429,3cyclictest25-21ksoftirqd/122:13:581
18356993429,3cyclictest25-21ksoftirqd/122:13:581
18356993429,3cyclictest25-21ksoftirqd/122:02:481
18356993429,3cyclictest25-21ksoftirqd/119:55:001
18356993428,4cyclictest25-21ksoftirqd/123:14:571
18356993428,4cyclictest25-21ksoftirqd/121:34:481
18356993428,4cyclictest25-21ksoftirqd/120:35:391
18356993428,4cyclictest25-21ksoftirqd/120:22:361
18356993428,4cyclictest25-21ksoftirqd/120:16:021
18356993428,4cyclictest25-21ksoftirqd/120:09:241
18356993428,4cyclictest25-21ksoftirqd/120:02:261
18356993428,4cyclictest25-21ksoftirqd/119:17:371
18356993428,4cyclictest25-21ksoftirqd/100:21:511
18355993429,3cyclictest9-21ksoftirqd/022:45:120
18355993428,4cyclictest9-21ksoftirqd/023:19:090
18355993428,4cyclictest9-21ksoftirqd/022:44:150
18355993428,4cyclictest9-21ksoftirqd/022:44:150
18355993428,4cyclictest9-21ksoftirqd/022:36:210
18355993428,4cyclictest9-21ksoftirqd/022:28:590
18355993428,4cyclictest9-21ksoftirqd/021:52:210
18355993428,4cyclictest9-21ksoftirqd/021:32:060
18355993428,4cyclictest9-21ksoftirqd/020:41:200
18355993428,4cyclictest9-21ksoftirqd/019:17:310
18355993427,5cyclictest9-21ksoftirqd/023:29:520
18355993427,5cyclictest9-21ksoftirqd/020:50:510
18355993427,4cyclictest9-21ksoftirqd/019:46:200
139391340,4ptp4l401ktimersoftd/320:58:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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