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2026-04-09 - 09:19
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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 Thu Apr 09, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591235167,23phc2sys0-21swapper/319:09:333
298212214171,32sleep20-21swapper/219:09:322
276442201168,22sleep10-21swapper/119:05:091
295652199166,21sleep00-21swapper/019:06:120
85372730,2sleep30-21swapper/322:45:233
126422660,6sleep13031199cyclictest21:50:011
89212620,3sleep20-21swapper/222:45:252
123662570,4sleep312370-21sed20:40:263
138491540,1ptp4l401ktimersoftd/322:02:093
30313995111,4cyclictest41-21ksoftirqd/323:00:263
307542500,1sleep330607-21cstates19:10:123
138491480,1ptp4l401ktimersoftd/320:09:153
30313994632,12cyclictest41-21ksoftirqd/323:20:013
30313994519,5cyclictest41-21ksoftirqd/320:00:233
30313994516,7cyclictest41-21ksoftirqd/300:09:383
30313994515,4cyclictest41-21ksoftirqd/321:55:253
30313994513,3cyclictest41-21ksoftirqd/319:30:003
30310994530,12cyclictest9-21ksoftirqd/021:48:590
30313994432,10cyclictest41-21ksoftirqd/323:20:193
3031399436,8cyclictest41-21ksoftirqd/323:45:013
3031399436,8cyclictest41-21ksoftirqd/323:45:013
30313994331,9cyclictest41-21ksoftirqd/322:10:233
30310994328,12cyclictest9-21ksoftirqd/020:33:590
138491430,1ptp4l401ktimersoftd/321:11:123
3031399422,2cyclictest41-21ksoftirqd/320:46:313
30313994214,7cyclictest41-21ksoftirqd/323:55:183
30313994126,12cyclictest41-21ksoftirqd/319:25:003
30313994110,4cyclictest41-21ksoftirqd/322:20:003
30310994127,11cyclictest9-21ksoftirqd/020:57:580
138491410,0ptp4l401ktimersoftd/321:54:333
138491410,0ptp4l401ktimersoftd/300:11:203
138491410,0ptp4l401ktimersoftd/300:11:203
30313994027,10cyclictest41-21ksoftirqd/323:45:143
3031399401,5cyclictest41-21ksoftirqd/322:38:323
30313994010,4cyclictest41-21ksoftirqd/300:15:243
30311994036,3cyclictest25-21ksoftirqd/123:39:591
30311994034,3cyclictest25-21ksoftirqd/100:30:001
3031199401,37cyclictest2874-21cron20:25:011
30310994024,13cyclictest9-21ksoftirqd/022:48:580
138491400,0ptp4l401ktimersoftd/321:00:013
3031399391,5cyclictest41-21ksoftirqd/320:28:263
30311993935,2cyclictest25-21ksoftirqd/121:00:011
30311993934,3cyclictest25-21ksoftirqd/119:55:001
3031399387,4cyclictest41-21ksoftirqd/323:25:253
3031399386,3cyclictest41-21ksoftirqd/321:05:003
30313993833,3cyclictest41-21ksoftirqd/321:20:003
30313993833,3cyclictest41-21ksoftirqd/300:25:193
30313993832,4cyclictest41-21ksoftirqd/319:50:083
30313993832,3cyclictest41-21ksoftirqd/323:10:003
30313993832,3cyclictest41-21ksoftirqd/323:10:003
3031399381,4cyclictest41-21ksoftirqd/319:17:053
30312993831,4cyclictest33-21ksoftirqd/223:21:562
30311993833,3cyclictest25-21ksoftirqd/123:20:011
30311993832,4cyclictest25-21ksoftirqd/119:41:271
138491380,0ptp4l401ktimersoftd/320:15:213
138491380,0ptp4l401ktimersoftd/319:34:283
3031399376,4cyclictest41-21ksoftirqd/322:55:253
30313993732,3cyclictest41-21ksoftirqd/320:15:003
30313993732,3cyclictest41-21ksoftirqd/300:00:123
30313993732,3cyclictest1319-21snmpd22:30:183
30313993731,4cyclictest41-21ksoftirqd/323:05:203
30313993731,3cyclictest41-21ksoftirqd/321:30:123
30313993731,3cyclictest41-21ksoftirqd/300:20:143
30313993730,4cyclictest41-21ksoftirqd/320:30:113
3031399371,5cyclictest41-21ksoftirqd/319:48:143
3031399371,4cyclictest41-21ksoftirqd/322:25:523
3031399371,4cyclictest41-21ksoftirqd/300:39:433
30311993732,3cyclictest25-21ksoftirqd/121:25:011
30311993732,3cyclictest25-21ksoftirqd/120:40:001
30311993731,4cyclictest25-21ksoftirqd/119:21:461
3031399368,7cyclictest41-21ksoftirqd/321:25:253
3031399367,7cyclictest41-21ksoftirqd/323:50:233
30313993631,3cyclictest41-21ksoftirqd/323:35:253
30313993631,3cyclictest41-21ksoftirqd/322:50:253
30313993631,3cyclictest41-21ksoftirqd/322:45:003
30313993631,3cyclictest41-21ksoftirqd/322:25:003
30313993631,3cyclictest41-21ksoftirqd/321:20:153
30313993631,3cyclictest41-21ksoftirqd/319:55:263
30313993630,3cyclictest41-21ksoftirqd/321:40:003
30313993630,3cyclictest41-21ksoftirqd/319:35:123
3031399361,4cyclictest41-21ksoftirqd/323:32:103
3031399361,4cyclictest41-21ksoftirqd/319:41:003
30312993631,4cyclictest33-21ksoftirqd/221:25:282
30312993630,4cyclictest33-21ksoftirqd/219:45:012
30312993630,4cyclictest33-21ksoftirqd/219:19:062
30312993630,3cyclictest33-21ksoftirqd/200:36:312
30312993629,5cyclictest33-21ksoftirqd/223:52:322
30312993628,5cyclictest33-21ksoftirqd/222:59:302
30311993631,3cyclictest25-21ksoftirqd/123:05:591
30311993630,4cyclictest25-21ksoftirqd/123:24:031
30311993630,4cyclictest25-21ksoftirqd/122:51:191
30311993630,4cyclictest25-21ksoftirqd/122:24:501
30311993630,4cyclictest25-21ksoftirqd/119:49:431
30311993630,4cyclictest25-21ksoftirqd/119:12:271
30311993630,4cyclictest25-21ksoftirqd/100:39:301
50798350,4rtkit-daemon16206-21irqrtprio20:50:183
30313993530,2cyclictest41-21ksoftirqd/321:40:243
30313993530,2cyclictest41-21ksoftirqd/320:20:133
30313993529,3cyclictest41-21ksoftirqd/322:05:123
30313993529,3cyclictest41-21ksoftirqd/321:05:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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