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2026-03-31 - 08:44
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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 Tue Mar 31, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2328022740,10sleep123281-21timerwakeupswit19:05:261
139491207173,22phc2sys0-21swapper/319:08:373
237012204170,23sleep20-21swapper/219:08:502
236472204170,23sleep00-21swapper/019:08:070
2379428262,11sleep00-21swapper/019:10:000
139391590,1ptp4l401ktimersoftd/320:43:143
139391560,1ptp4l401ktimersoftd/320:35:473
139391550,1ptp4l401ktimersoftd/322:22:053
2408799535,6cyclictest10377-21latency_hist00:19:592
139391530,1ptp4l401ktimersoftd/321:15:573
2408799497,16cyclictest23726-21sed20:15:212
2408799485,7cyclictest7778-21sed23:05:192
2408799480,17cyclictest10637-21grep00:20:142
2408799476,7cyclictest10964-21expr22:05:142
2408799450,10cyclictest16395-21missed_timers00:30:192
24087994437,4cyclictest6353-21fschecks_count21:55:172
2408799440,6cyclictest33-21ksoftirqd/221:30:152
139391440,0ptp4l401ktimersoftd/320:10:173
134391440,7getstats2408899cyclictest23:08:153
24087994315,4cyclictest33-21ksoftirqd/219:30:232
139391430,0ptp4l401ktimersoftd/322:10:183
57898420,7rtkit-daemon0-21swapper/122:48:141
2408799424,4cyclictest33-21ksoftirqd/221:50:142
24087994219,5cyclictest33-21ksoftirqd/219:52:242
139391420,0ptp4l401ktimersoftd/321:35:303
139391410,0ptp4l401ktimersoftd/323:33:313
24088994034,3cyclictest41-21ksoftirqd/321:05:003
139391400,0ptp4l401ktimersoftd/300:04:293
139391390,0ptp4l401ktimersoftd/300:10:173
24088993833,3cyclictest41-21ksoftirqd/322:40:003
24087993835,2cyclictest311rcuc/220:56:452
2408799380,7cyclictest33-21ksoftirqd/200:35:252
2408799380,6cyclictest33-21ksoftirqd/219:35:142
24086993831,4cyclictest25-21ksoftirqd/100:16:091
139391380,0ptp4l401ktimersoftd/320:00:213
57898370,2rtkit-daemon0-21swapper/100:20:211
2408799375,8cyclictest33-21ksoftirqd/200:05:512
2408799374,5cyclictest33-21ksoftirqd/221:10:422
2408799372,5cyclictest33-21ksoftirqd/222:13:122
2408799371,5cyclictest33-21ksoftirqd/221:05:182
24086993732,3cyclictest20934-21idleruntime-cro23:35:001
24086993731,4cyclictest25-21ksoftirqd/121:50:431
24086993731,4cyclictest25-21ksoftirqd/121:01:251
24086993731,4cyclictest25-21ksoftirqd/119:27:171
24086993731,3cyclictest27117-21idleruntime-cro22:40:001
139391370,0ptp4l401ktimersoftd/322:25:243
139391370,0ptp4l401ktimersoftd/320:55:213
24088993631,3cyclictest41-21ksoftirqd/300:30:003
2408799364,5cyclictest33-21ksoftirqd/220:01:272
2408799364,4cyclictest33-21ksoftirqd/220:31:512
2408799363,7cyclictest33-21ksoftirqd/221:28:292
2408799363,4cyclictest33-21ksoftirqd/220:27:022
24087993633,2cyclictest311rcuc/223:12:172
24087993633,2cyclictest311rcuc/223:03:132
2408799362,4cyclictest33-21ksoftirqd/223:38:372
2408799362,4cyclictest33-21ksoftirqd/221:00:012
2408799361,4cyclictest33-21ksoftirqd/200:10:182
2408799360,5cyclictest33-21ksoftirqd/221:40:172
24086993631,3cyclictest25-21ksoftirqd/123:10:001
24086993631,3cyclictest25-21ksoftirqd/121:34:341
24086993630,4cyclictest25-21ksoftirqd/120:44:401
24086993630,4cyclictest25-21ksoftirqd/120:09:301
24086993630,3cyclictest25-21ksoftirqd/120:39:341
24086993629,4cyclictest25-21ksoftirqd/100:05:161
24085993616,18cyclictest4730-21cstates23:00:120
139391360,0ptp4l401ktimersoftd/300:15:203
24088993531,2cyclictest41-21ksoftirqd/322:19:593
24088993531,2cyclictest41-21ksoftirqd/321:30:003
24088993531,2cyclictest41-21ksoftirqd/300:00:003
24088993529,3cyclictest41-21ksoftirqd/319:40:193
2408799354,7cyclictest33-21ksoftirqd/200:04:422
2408799354,5cyclictest33-21ksoftirqd/222:37:152
2408799353,4cyclictest33-21ksoftirqd/220:43:382
2408799351,5cyclictest33-21ksoftirqd/222:25:392
24086993529,4cyclictest25-21ksoftirqd/123:01:191
24086993529,4cyclictest25-21ksoftirqd/122:43:461
24086993529,4cyclictest25-21ksoftirqd/121:42:481
24086993529,4cyclictest25-21ksoftirqd/119:56:381
24086993529,4cyclictest25-21ksoftirqd/119:46:151
24086993527,5cyclictest25-21ksoftirqd/120:29:071
24085993529,4cyclictest9-21ksoftirqd/023:55:380
24085993529,4cyclictest9-21ksoftirqd/022:22:470
24085993529,4cyclictest9-21ksoftirqd/020:03:030
24085993528,4cyclictest9-21ksoftirqd/000:31:330
57898340,1rtkit-daemon0-21swapper/121:15:301
24088993429,3cyclictest41-21ksoftirqd/323:25:013
24088993428,4cyclictest41-21ksoftirqd/320:09:193
24088993428,4cyclictest41-21ksoftirqd/319:12:473
24088993427,4cyclictest41-21ksoftirqd/322:43:583
24088993424,8cyclictest41-21ksoftirqd/321:31:223
2408799349,3cyclictest33-21ksoftirqd/222:57:272
2408799344,4cyclictest33-21ksoftirqd/222:54:412
2408799344,4cyclictest33-21ksoftirqd/219:27:122
2408799343,4cyclictest33-21ksoftirqd/223:28:262
24087993428,4cyclictest33-21ksoftirqd/221:35:402
24087993428,3cyclictest19239-21systemctl22:20:232
2408799341,5cyclictest33-21ksoftirqd/222:19:062
2408799341,5cyclictest33-21ksoftirqd/219:58:372
2408799341,4cyclictest33-21ksoftirqd/223:15:232
2408799340,5cyclictest33-21ksoftirqd/220:45:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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