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2025-12-05 - 14:15
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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 highest latencies:
System rackdslot1.osadl.org (updated Fri Dec 05, 2025 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
427921660,7sleep02022199cyclictest23:10:330
1513221510,6sleep32022499cyclictest22:25:263
2022499722,29cyclictest0-21swapper/321:20:163
2847191690,4ptp4l7327-21diskstats22:10:171
2022199675,23cyclictest2847191ptp4l23:00:160
20224996528,7cyclictest41-21ksoftirqd/320:55:023
2847191640,3ptp4l0-21swapper/123:20:191
20221996313,20cyclictest28696-21mailstats20:35:270
2022199631,26cyclictest22392-21cat19:15:000
20221996310,18cyclictest2656-21date23:10:000
2022199630,25cyclictest1299-21runrttasks20:04:020
2847191620,5ptp4l0-21swapper/000:10:270
2847191620,3ptp4l0-21swapper/200:30:312
2847191610,4ptp4l0-21swapper/021:22:320
2022199611,35cyclictest31745-21seq20:44:220
2022199610,25cyclictest26996-21seq20:33:470
2022199610,24cyclictest2942-21if_err_enp4s022:00:170
2847191600,3ptp4l0-21swapper/120:25:191
2022199601,24cyclictest12242-21seq00:39:230
2022199600,29cyclictest13695-21runrttasks22:24:510
2022199600,25cyclictest9273-21seq23:22:520
2022199600,25cyclictest26767-21seq19:22:350
2847191590,3ptp4l0-21swapper/122:42:391
2847191590,3ptp4l0-21swapper/121:15:281
2022199593,22cyclictest0-21swapper/000:24:450
2022199591,27cyclictest10503-21seq19:55:320
2022199590,30cyclictest28120-21runrttasks00:04:070
2022199590,27cyclictest22790-21seq22:42:410
2022199590,26cyclictest9963-21seq00:34:450
2022199590,26cyclictest8974-21taskset22:13:470
2847191580,4ptp4l0-21swapper/220:25:012
2847191580,4ptp4l0-21swapper/021:40:160
20224995827,6cyclictest41-21ksoftirqd/321:35:283
2022199585,23cyclictest23358-21taskset23:52:400
2022199581,26cyclictest30479-21taskset00:06:320
2022199581,25cyclictest22702-21seq21:33:280
2022199580,26cyclictest6106-21seq20:56:370
2022199580,26cyclictest25750-21seq23:58:390
2022199580,26cyclictest15809-21seq21:19:240
2847191570,4ptp4l0-21swapper/220:01:532
2847191570,4ptp4l0-21swapper/100:21:391
2847191570,3ptp4l0-21swapper/220:57:332
2847191570,15ptp4l0-21swapper/219:48:252
20224995729,7cyclictest41-21ksoftirqd/321:40:243
2022199571,26cyclictest29121-21seq19:27:240
2022199571,26cyclictest29121-21seq19:27:240
2022199571,25cyclictest28811-21apache220:21:370
2022199570,28cyclictest25079-21runrttasks22:47:260
2022199570,26cyclictest2011-21seq21:58:520
2847191560,4ptp4l0-21swapper/122:32:391
2847191560,3ptp4l0-21swapper/220:10:052
2847191560,3ptp4l0-21swapper/123:10:461
20224995627,7cyclictest41-21ksoftirqd/322:25:003
20224995625,7cyclictest41-21ksoftirqd/321:15:173
20224995625,7cyclictest41-21ksoftirqd/319:35:173
20224995618,8cyclictest41-21ksoftirqd/323:35:263
2022199563,21cyclictest0-21swapper/021:46:590
2022199561,18cyclictest2847191ptp4l22:55:190
2022199560,27cyclictest8582-21seq21:00:430
2022199560,25cyclictest21155-21taskset23:48:590
2847191550,4ptp4l0-21swapper/200:38:222
2847191550,3ptp4l0-21swapper/100:09:381
20224995527,8cyclictest41-21ksoftirqd/321:25:173
20224995527,7cyclictest41-21ksoftirqd/300:35:313
20224995527,4cyclictest41-21ksoftirqd/322:35:283
20224995526,9cyclictest41-21ksoftirqd/323:05:183
20224995523,7cyclictest41-21ksoftirqd/320:40:223
2022199553,22cyclictest0-21swapper/020:27:250
2022199552,28cyclictest11201-21seq21:09:330
2022199550,27cyclictest7379-21seq00:26:220
2022199550,27cyclictest24886-21seq21:36:570
2847191540,4ptp4l28850-21apache222:22:291
2847191540,4ptp4l0-21swapper/121:40:521
2847191540,3ptp4l0-21swapper/122:45:151
2847191540,3ptp4l0-21swapper/120:22:361
2022499542,27cyclictest0-21swapper/300:07:343
2022199542,23cyclictest0-21swapper/021:27:040
2022199542,21cyclictest0-21swapper/022:38:400
2847191530,5ptp4l33-21ksoftirqd/223:21:342
2847191530,4ptp4l0-21swapper/100:26:271
2847191530,3ptp4l0-21swapper/200:18:582
2847191530,11ptp4l17868-21apt-get19:05:103
20224995325,8cyclictest41-21ksoftirqd/322:10:153
20224995325,7cyclictest41-21ksoftirqd/320:15:273
20224995324,8cyclictest41-21ksoftirqd/323:45:023
20224995321,9cyclictest41-21ksoftirqd/319:25:253
20224995321,9cyclictest41-21ksoftirqd/319:25:253
20224995320,7cyclictest41-21ksoftirqd/300:20:203
2022199532,21cyclictest0-21swapper/019:16:100
2022199532,20cyclictest0-21swapper/020:17:300
2847191520,4ptp4l0-21swapper/222:10:192
2847191520,3ptp4l0-21swapper/319:41:223
2847191520,3ptp4l0-21swapper/119:27:401
2847191520,3ptp4l0-21swapper/119:27:401
20224995222,8cyclictest41-21ksoftirqd/319:50:183
2847191510,4ptp4l0-21swapper/122:25:091
2847191510,3ptp4l0-21swapper/321:04:343
2847191510,3ptp4l0-21swapper/121:39:011
20224995127,8cyclictest41-21ksoftirqd/300:10:223
20224995126,6cyclictest41-21ksoftirqd/319:30:203
2022499510,5cyclictest25933-21sendmail-msp00:00:013
20221995111,27cyclictest6906-21seq23:17:310
2847191500,4ptp4l0-21swapper/123:30:471
2847191500,4ptp4l0-21swapper/122:01:181
2022499503,9cyclictest41-21ksoftirqd/320:55:283
20224995031,9cyclictest41-21ksoftirqd/300:20:003
20224995024,9cyclictest41-21ksoftirqd/320:05:173
20224995024,9cyclictest41-21ksoftirqd/320:05:173
20224995023,9cyclictest41-21ksoftirqd/322:50:293
2022199502,20cyclictest0-21swapper/019:36:580
2022199500,26cyclictest13891-21runrttasks23:32:510
2022199500,25cyclictest1681-21seq20:49:390
2847191490,4ptp4l0-21swapper/119:17:031
2022499494,6cyclictest310-21dbus-daemon19:20:003
2022499493,8cyclictest41-21ksoftirqd/319:45:293
20224994929,2cyclictest41-21ksoftirqd/320:35:003
20224994917,7cyclictest41-21ksoftirqd/323:10:313
2022199492,19cyclictest0-21swapper/020:05:090
2022199492,19cyclictest0-21swapper/020:05:090
2022199490,24cyclictest1299-21runrttasks20:13:320
2847191480,4ptp4l0-21swapper/300:03:573
2847191480,3ptp4l0-21swapper/123:43:411
2847191480,3ptp4l0-21swapper/123:07:471
2022499486,6cyclictest207-21systemd-journal22:45:003
2022499483,7cyclictest0-21swapper/321:30:333
2022499482,29cyclictest0-21swapper/319:10:173
20224994822,8cyclictest41-21ksoftirqd/320:45:173
20224994817,7cyclictest41-21ksoftirqd/323:15:293
2022199480,30cyclictest16221-21taskset23:38:050
2022199480,25cyclictest17993-21taskset22:30:520
2847191470,3ptp4l121rcu_preempt00:13:212
2847191470,2ptp4l0-21swapper/123:38:271
2022499474,6cyclictest41-21ksoftirqd/321:55:223
2022499472,31cyclictest0-21swapper/320:37:253
2022499471,7cyclictest41-21ksoftirqd/321:50:013
20224994714,7cyclictest41-21ksoftirqd/300:25:203
2847191460,6ptp4l0-21swapper/320:25:293
2847191460,5ptp4l0-21swapper/123:15:311
2847191460,4ptp4l31891-21apt-get19:35:122
2847191460,4ptp4l0-21swapper/123:04:071
2847191460,3ptp4l0-21swapper/123:48:141
2022499464,6cyclictest41-21ksoftirqd/322:05:213
2022499463,7cyclictest41-21ksoftirqd/321:10:273
2022499462,7cyclictest0-21swapper/322:55:193
2022499462,7cyclictest0-21swapper/319:57:173
2022499462,6cyclictest0-21swapper/321:05:223
20224994618,7cyclictest41-21ksoftirqd/319:25:003
2022499461,7cyclictest41-21ksoftirqd/323:40:193
2022499460,6cyclictest41-21ksoftirqd/323:25:013
2022499460,14cyclictest41-21ksoftirqd/322:35:003
2847191450,4ptp4l0-21swapper/219:57:142
2847191450,4ptp4l0-21swapper/123:52:281
2847191450,3ptp4l0-21swapper/219:05:112
2022499454,9cyclictest41-21ksoftirqd/323:50:253
2022499452,9cyclictest41-21ksoftirqd/320:15:003
2022499450,6cyclictest41-21ksoftirqd/323:30:013
2022199450,42cyclictest30086-21/usr/sbin/munin21:50:110
2847191440,9ptp4l0-21swapper/220:46:382
2847191440,9ptp4l0-21swapper/220:28:162
2847191440,9ptp4l0-21swapper/219:11:222
2847191440,4ptp4l28443-21apt-get00:05:132
2847191440,4ptp4l21081-21df_inode21:30:202
2847191440,4ptp4l0-21swapper/122:53:151
2847191440,3ptp4l0-21swapper/121:50:531
2847191440,3ptp4l0-21swapper/100:39:561
2847191440,10ptp4l0-21swapper/222:18:052
2847191440,10ptp4l0-21swapper/100:32:311
2022499442,8cyclictest41-21ksoftirqd/323:00:023
2022499442,6cyclictest41-21ksoftirqd/323:35:003
2022499442,6cyclictest0-21swapper/322:45:173
2022399442,41cyclictest15467-21kworker/2:123:14:492
2022399442,41cyclictest0-21swapper/222:20:302
2022199442,20cyclictest0-21swapper/020:50:430
2847191430,8ptp4l0-21swapper/300:30:323
2847191430,6ptp4l32407-21apt-get21:55:162
2847191430,5ptp4l0-21swapper/200:25:172
2847191430,4ptp4l2003-21apt-get20:50:162
2847191430,4ptp4l0-21swapper/120:40:141
2847191430,4ptp4l0-21swapper/120:38:121
2022499435,3cyclictest121rcu_preempt20:02:513
2022499432,12cyclictest0-21swapper/321:50:363
20224994315,7cyclictest41-21ksoftirqd/320:20:143
2847191420,9ptp4l0-21swapper/222:33:382
2847191420,8ptp4l0-21swapper/221:18:522
2847191420,8ptp4l0-21swapper/221:11:492
2847191420,6ptp4l0-21swapper/019:06:170
2847191420,5ptp4l0-21swapper/223:50:132
2847191420,5ptp4l0-21swapper/200:20:132
2847191420,5ptp4l0-21swapper/121:10:281
2847191420,5ptp4l0-21swapper/019:50:120
2847191420,4ptp4l6389-21apt-get21:00:021
2847191420,4ptp4l25355-21df_inode20:30:221
2847191420,4ptp4l24898-21apt-get19:20:101
2847191420,4ptp4l24762-21meminfo23:55:231
2847191420,4ptp4l10277-21meminfo22:15:190
2847191420,4ptp4l0-21swapper/223:05:242
2847191420,4ptp4l0-21swapper/221:54:532
2847191420,4ptp4l0-21swapper/100:04:251
2847191420,3ptp4l28859-21ls22:55:221
2847191410,6ptp4l9764-21irqrtprio21:05:222
2847191410,6ptp4l14685-21irqrtprio22:25:210
2847191410,5ptp4l0-21swapper/220:08:582
2847191410,5ptp4l0-21swapper/220:08:582
2847191410,4ptp4l19752-21users20:15:301
2847191410,4ptp4l10131-21hddtemp_smartct23:25:170
2847191410,4ptp4l0-21swapper/222:53:272
2847191410,4ptp4l0-21swapper/222:01:232
2847191410,4ptp4l0-21swapper/221:47:432
2847191410,4ptp4l0-21swapper/221:27:582
2847191410,4ptp4l0-21swapper/219:20:042
2847191410,4ptp4l0-21swapper/122:39:381
2847191410,4ptp4l0-21swapper/121:45:201
2847191410,4ptp4l0-21swapper/120:47:181
2847191410,4ptp4l0-21swapper/119:05:231
2847191410,4ptp4l0-21swapper/022:05:060
2847191410,4ptp4l0-21swapper/019:40:170
2847191410,3ptp4l12616-21ntp_states21:10:230
2847191410,3ptp4l0-21swapper/322:18:543
2022499410,6cyclictest41-21ksoftirqd/322:04:063
2847191400,8ptp4l0-21swapper/219:53:022
2847191400,5ptp4l0-21swapper/220:15:132
2847191400,4ptp4l3527-21ls20:50:321
2847191400,4ptp4l30964-21ps20:40:282
2847191400,4ptp4l0-21swapper/223:56:112
2847191400,4ptp4l0-21swapper/223:46:102
2847191400,4ptp4l0-21swapper/223:40:532
2847191400,4ptp4l0-21swapper/223:34:052
2847191400,4ptp4l0-21swapper/223:25:512
2847191400,4ptp4l0-21swapper/223:17:372
2847191400,4ptp4l0-21swapper/223:03:232
2847191400,4ptp4l0-21swapper/222:57:042
2847191400,4ptp4l0-21swapper/222:46:522
2847191400,4ptp4l0-21swapper/222:36:092
2847191400,4ptp4l0-21swapper/222:05:292
2847191400,4ptp4l0-21swapper/221:40:182
2847191400,4ptp4l0-21swapper/221:35:352
2847191400,4ptp4l0-21swapper/221:20:272
2847191400,4ptp4l0-21swapper/220:33:182
2847191400,4ptp4l0-21swapper/219:41:052
2847191400,4ptp4l0-21swapper/219:33:092
2847191400,4ptp4l0-21swapper/219:16:102
2847191400,4ptp4l0-21swapper/123:25:161
2847191400,4ptp4l0-21swapper/122:19:071
2847191400,4ptp4l0-21swapper/122:05:071
2847191400,4ptp4l0-21swapper/121:24:031
2847191400,4ptp4l0-21swapper/120:05:311
2847191400,4ptp4l0-21swapper/120:05:311
2847191400,4ptp4l0-21swapper/119:10:161
2847191400,4ptp4l0-21swapper/019:47:540
2847191400,4ptp4l0-21swapper/000:19:010
2847191400,3ptp4l26394-21irqstats22:50:200
2847191400,3ptp4l17769-21ntp_states23:40:230
2847191400,3ptp4l0-21swapper/223:39:232
2847191400,3ptp4l0-21swapper/222:26:102
2847191400,3ptp4l0-21swapper/200:00:112
2847191400,3ptp4l0-21swapper/121:55:181
2847191400,3ptp4l0-21swapper/119:36:461
2847191390,5ptp4l30223-21cut19:30:171
2847191390,5ptp4l0-21swapper/121:25:221
2847191390,4ptp4l0-21swapper/220:35:402
2847191390,4ptp4l0-21swapper/219:29:112
2847191390,4ptp4l0-21swapper/219:29:112
2847191390,4ptp4l0-21swapper/121:32:131
2847191390,4ptp4l0-21swapper/121:07:341
2847191390,4ptp4l0-21swapper/120:55:291
2847191390,4ptp4l0-21swapper/120:12:221
2847191390,4ptp4l0-21swapper/120:01:501
2847191390,4ptp4l0-21swapper/119:50:131
2847191390,4ptp4l0-21swapper/119:41:091
2847191390,4ptp4l0-21swapper/100:16:161
2847191390,4ptp4l0-21swapper/019:30:120
2847191390,3ptp4l10217-21sed19:55:291
2847191390,3ptp4l0-21swapper/221:00:312
2847191390,3ptp4l0-21swapper/119:45:501
2847191390,3ptp4l0-21swapper/100:10:201
2847191380,4ptp4l0-21swapper/222:40:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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