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2026-07-03 - 09:48
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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 all highest latencies:
System rackdslot4.osadl.org (updated Fri Jul 03, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591206171,23phc2sys0-21swapper/319:05:593
136302204171,21sleep20-21swapper/219:09:282
136292204171,22sleep10-21swapper/119:09:271
135932203169,22sleep00-21swapper/019:08:580
2430721210,2sleep10-21swapper/119:30:121
138491660,1ptp4l9377-21cstates22:15:143
219402590,2sleep10-21swapper/123:45:191
1396799590,19cyclictest23877-21latency_hist19:30:003
154772550,1sleep20-21swapper/221:20:252
1396699540,16cyclictest6679-21acpi21:05:112
1396499535,9cyclictest9-21ksoftirqd/023:25:140
264252510,2sleep30-21swapper/319:35:003
1396599511,10cyclictest10714-21ls21:10:251
1396499513,6cyclictest9-21ksoftirqd/020:55:000
1396499513,6cyclictest9-21ksoftirqd/020:20:130
1396799500,11cyclictest21568-21/usr/sbin/munin20:30:133
1396499509,6cyclictest9-21ksoftirqd/021:35:220
1396499505,8cyclictest9-21ksoftirqd/022:10:110
1396499505,8cyclictest9-21ksoftirqd/019:25:240
1396499493,6cyclictest9-21ksoftirqd/022:35:160
1396499493,6cyclictest9-21ksoftirqd/000:00:130
1396499493,5cyclictest9-21ksoftirqd/020:05:260
1396599480,3cyclictest21223-21taskset19:23:241
1396499484,7cyclictest9-21ksoftirqd/023:40:230
1396499484,7cyclictest9-21ksoftirqd/023:40:230
1396499483,5cyclictest9-21ksoftirqd/021:15:140
1396499482,8cyclictest9-21ksoftirqd/019:55:230
1396499482,6cyclictest9-21ksoftirqd/022:40:140
1396499482,6cyclictest101ktimersoftd/020:35:280
1396599471,23cyclictest11105-21taskset20:06:061
1396499474,5cyclictest9-21ksoftirqd/000:25:010
1396499472,5cyclictest9-21ksoftirqd/022:05:130
1396499470,6cyclictest101ktimersoftd/023:40:000
1396799460,15cyclictest30768-21ssh20:45:253
13966994634,3cyclictest33-21ksoftirqd/220:15:002
1396599461,3cyclictest10911-21taskset22:15:391
1396599461,21cyclictest3457-21taskset23:05:331
1396499463,5cyclictest9-21ksoftirqd/020:30:150
1396499462,6cyclictest9-21ksoftirqd/000:30:000
1396499462,5cyclictest9-21ksoftirqd/021:45:180
13966994540,3cyclictest33-21ksoftirqd/221:55:002
1396599450,22cyclictest3612-21taskset22:01:301
1396499452,6cyclictest9-21ksoftirqd/022:45:140
1396499451,5cyclictest9-21ksoftirqd/023:00:280
1396799441,5cyclictest0-21swapper/320:00:243
1396799440,11cyclictest1767-21apt-get19:50:123
13965994410,17cyclictest211002chrt22:37:151
1396599440,22cyclictest16020-21taskset23:33:451
1396599440,21cyclictest31102-21taskset22:58:311
1396499444,9cyclictest9-21ksoftirqd/021:00:180
1396499442,5cyclictest9-21ksoftirqd/020:45:230
1396499442,5cyclictest9-21ksoftirqd/020:30:010
1396499442,5cyclictest9-21ksoftirqd/000:15:140
1396599439,25cyclictest1303-21runrttasks00:27:111
13965994310,19cyclictest25079-21seq21:40:211
1396599430,3cyclictest8601-21taskset22:12:301
1396599430,3cyclictest30905-21taskset00:01:531
1396599430,22cyclictest18713-21taskset21:29:411
1396499433,5cyclictest9-21ksoftirqd/021:55:010
1396499432,9cyclictest9-21ksoftirqd/020:00:250
1396499432,8cyclictest9-21ksoftirqd/019:39:590
138491430,35ptp4l0-21swapper/319:10:003
138491430,0ptp4l401ktimersoftd/321:51:413
138491430,0ptp4l401ktimersoftd/321:45:473
138491430,0ptp4l401ktimersoftd/320:08:153
1396799426,5cyclictest41-21ksoftirqd/320:43:203
1396599421,18cyclictest1013-21apache200:32:511
13964994238,2cyclictest111rcuc/019:50:170
1396499423,6cyclictest9-21ksoftirqd/021:25:130
1396499423,6cyclictest9-21ksoftirqd/019:10:140
1396499423,5cyclictest9-21ksoftirqd/021:20:180
1396499423,4cyclictest9-21ksoftirqd/021:40:250
1396499422,8cyclictest9-21ksoftirqd/021:55:170
1396499422,6cyclictest9-21ksoftirqd/023:10:120
1396499422,5cyclictest9-21ksoftirqd/019:40:160
138491420,0ptp4l401ktimersoftd/322:24:023
138491420,0ptp4l401ktimersoftd/321:10:283
138491420,0ptp4l401ktimersoftd/321:01:063
13966994136,3cyclictest33-21ksoftirqd/223:25:012
13966994136,3cyclictest33-21ksoftirqd/220:35:002
13966994135,3cyclictest33-21ksoftirqd/221:00:002
1396499412,9cyclictest9-21ksoftirqd/019:15:190
1396499410,10cyclictest9-21ksoftirqd/000:08:310
138491410,0ptp4l401ktimersoftd/321:05:273
13966994035,3cyclictest33-21ksoftirqd/220:45:012
1396599400,26cyclictest975-21chrt21:58:071
1396599400,1cyclictest0-21swapper/121:03:081
1396499403,6cyclictest9-21ksoftirqd/000:10:150
1396499403,6cyclictest9-21ksoftirqd/000:10:150
1396499402,5cyclictest9-21ksoftirqd/022:55:230
1396499400,6cyclictest101ktimersoftd/021:30:140
138491400,0ptp4l401ktimersoftd/300:08:063
1396799397,5cyclictest41-21ksoftirqd/323:11:553
13966993934,3cyclictest33-21ksoftirqd/221:30:002
13966993933,3cyclictest33-21ksoftirqd/200:20:012
13966993929,7cyclictest33-21ksoftirqd/222:00:132
1396499395,7cyclictest9-21ksoftirqd/000:30:170
1396499393,8cyclictest9-21ksoftirqd/023:50:190
1396499393,6cyclictest9-21ksoftirqd/022:20:140
1396499393,5cyclictest9-21ksoftirqd/022:54:020
1396499391,5cyclictest9-21ksoftirqd/022:32:520
138491390,1ptp4l1328-21sshd19:47:293
1396799386,4cyclictest41-21ksoftirqd/320:18:003
13966993833,3cyclictest33-21ksoftirqd/220:04:592
13966993832,3cyclictest33-21ksoftirqd/200:05:002
1396499385,8cyclictest9-21ksoftirqd/023:35:000
1396499383,5cyclictest9-21ksoftirqd/020:55:260
13964993816,6cyclictest9-21ksoftirqd/022:25:190
13966993733,2cyclictest33-21ksoftirqd/222:35:002
13966993732,3cyclictest33-21ksoftirqd/223:05:002
13966993732,3cyclictest33-21ksoftirqd/220:00:002
13966993732,3cyclictest33-21ksoftirqd/200:10:002
13966993731,4cyclictest33-21ksoftirqd/223:09:292
13966993731,4cyclictest33-21ksoftirqd/219:26:342
13966993731,4cyclictest33-21ksoftirqd/200:23:472
13966993731,3cyclictest33-21ksoftirqd/219:50:182
13965993731,4cyclictest25-21ksoftirqd/119:37:101
1396599371,22cyclictest1303-21runrttasks19:16:471
1396499374,9cyclictest9-21ksoftirqd/019:20:180
13964993732,3cyclictest9-21ksoftirqd/019:45:260
1396499372,6cyclictest9-21ksoftirqd/021:10:210
1396499372,6cyclictest9-21ksoftirqd/000:00:000
50798360,4rtkit-daemon2315-21gnome-shell20:48:581
50798360,1rtkit-daemon0-21swapper/123:41:101
50798360,1rtkit-daemon0-21swapper/123:41:101
13967993631,3cyclictest41-21ksoftirqd/323:30:243
13967993630,4cyclictest41-21ksoftirqd/321:30:573
13967993630,4cyclictest41-21ksoftirqd/320:37:063
13967993630,4cyclictest41-21ksoftirqd/300:37:483
13967993612,5cyclictest41-21ksoftirqd/323:35:173
13966993633,2cyclictest33-21ksoftirqd/220:30:002
13966993632,3cyclictest33-21ksoftirqd/219:30:182
13966993632,3cyclictest33-21ksoftirqd/200:40:002
13966993631,3cyclictest33-21ksoftirqd/220:39:422
13966993630,4cyclictest33-21ksoftirqd/223:33:002
13966993630,4cyclictest33-21ksoftirqd/222:06:432
13966993630,4cyclictest33-21ksoftirqd/221:39:402
13966993630,3cyclictest33-21ksoftirqd/220:05:182
13965993631,3cyclictest25-21ksoftirqd/120:00:111
13965993630,4cyclictest25-21ksoftirqd/120:19:031
13965993630,4cyclictest1440-21cron20:55:001
1396599361,4cyclictest8771-21taskset00:21:151
1396599360,3cyclictest5916-21taskset23:10:391
1396599360,3cyclictest26283-21taskset20:37:491
1396599360,22cyclictest27441-21iostat20:40:171
13964993633,2cyclictest111rcuc/020:15:390
1396499362,4cyclictest0-21swapper/020:41:400
1396499361,5cyclictest9-21ksoftirqd/023:47:490
1396499360,6cyclictest9-21ksoftirqd/021:05:250
138491360,0ptp4l401ktimersoftd/320:55:283
13967993529,4cyclictest41-21ksoftirqd/323:58:283
13966993530,3cyclictest33-21ksoftirqd/222:45:132
13966993530,3cyclictest33-21ksoftirqd/222:20:202
13966993530,3cyclictest33-21ksoftirqd/222:10:092
13966993530,3cyclictest33-21ksoftirqd/219:40:002
13966993530,3cyclictest33-21ksoftirqd/219:10:132
13966993529,4cyclictest33-21ksoftirqd/223:45:202
13966993529,4cyclictest33-21ksoftirqd/223:35:412
13966993529,4cyclictest33-21ksoftirqd/222:55:092
13966993529,4cyclictest33-21ksoftirqd/222:28:052
13966993529,4cyclictest33-21ksoftirqd/221:55:402
13966993529,4cyclictest33-21ksoftirqd/221:46:292
13966993529,4cyclictest33-21ksoftirqd/220:55:002
1396699351,31cyclictest26260-21ls23:55:012
1396599358,15cyclictest1303-21runrttasks20:58:381
13965993529,4cyclictest25-21ksoftirqd/122:20:381
13965993529,4cyclictest25-21ksoftirqd/119:59:411
13965993529,4cyclictest25-21ksoftirqd/100:18:521
13965993528,4cyclictest23883-21perf22:45:001
1396599351,20cyclictest0-21swapper/122:08:531
1396499355,7cyclictest10655-21ls23:20:270
13964993532,2cyclictest111rcuc/020:10:450
13964993530,3cyclictest9-21ksoftirqd/000:38:050
13967993428,4cyclictest41-21ksoftirqd/322:13:303
13967993428,4cyclictest41-21ksoftirqd/322:01:593
13967993428,4cyclictest41-21ksoftirqd/300:14:533
13967993428,4cyclictest41-21ksoftirqd/300:14:533
13967993427,4cyclictest41-21ksoftirqd/323:07:183
13966993430,3cyclictest33-21ksoftirqd/223:15:192
13966993430,3cyclictest33-21ksoftirqd/222:35:112
13966993430,3cyclictest33-21ksoftirqd/200:30:142
13966993430,2cyclictest33-21ksoftirqd/221:10:182
13966993429,3cyclictest33-21ksoftirqd/223:40:182
13966993429,3cyclictest33-21ksoftirqd/223:40:172
13966993429,3cyclictest33-21ksoftirqd/221:15:252
13966993428,4cyclictest33-21ksoftirqd/223:10:342
13966993428,4cyclictest33-21ksoftirqd/222:43:422
13966993428,4cyclictest33-21ksoftirqd/220:18:032
13966993428,4cyclictest33-21ksoftirqd/219:47:062
13966993428,3cyclictest33-21ksoftirqd/219:25:012
13965993429,3cyclictest25-21ksoftirqd/123:17:291
13965993428,4cyclictest25-21ksoftirqd/121:34:041
13965993428,4cyclictest25-21ksoftirqd/119:41:191
13965993428,4cyclictest25-21ksoftirqd/119:27:521
13965993427,5cyclictest25-21ksoftirqd/122:33:221
13965993427,5cyclictest25-21ksoftirqd/122:26:041
13965993427,5cyclictest25-21ksoftirqd/120:34:391
1396599340,20cyclictest1360-21taskset00:09:311
1396799332,9cyclictest11652-21/usr/sbin/munin20:10:163
13967993328,3cyclictest41-21ksoftirqd/323:50:023
13967993327,4cyclictest41-21ksoftirqd/321:57:533
13967993327,4cyclictest41-21ksoftirqd/321:35:313
13967993327,4cyclictest41-21ksoftirqd/300:20:553
13967993326,4cyclictest41-21ksoftirqd/319:55:023
13966993328,3cyclictest33-21ksoftirqd/221:40:422
13966993328,3cyclictest33-21ksoftirqd/219:20:002
13966993328,3cyclictest33-21ksoftirqd/200:00:002
13966993327,4cyclictest33-21ksoftirqd/222:19:192
13966993327,4cyclictest33-21ksoftirqd/219:42:152
13966993327,4cyclictest33-21ksoftirqd/200:10:312
13966993327,4cyclictest33-21ksoftirqd/200:10:312
13965993328,3cyclictest25-21ksoftirqd/123:55:381
13965993328,3cyclictest25-21ksoftirqd/119:47:161
13965993327,4cyclictest25-21ksoftirqd/122:52:551
13965993327,4cyclictest25-21ksoftirqd/121:16:151
13965993327,4cyclictest25-21ksoftirqd/121:06:411
13965993327,4cyclictest25-21ksoftirqd/120:24:441
13965993327,4cyclictest25-21ksoftirqd/119:55:001
13965993327,3cyclictest25-21ksoftirqd/123:37:071
13964993329,2cyclictest9-21ksoftirqd/022:00:190
13967993227,3cyclictest41-21ksoftirqd/323:29:213
13967993227,3cyclictest41-21ksoftirqd/300:30:153
13967993227,3cyclictest41-21ksoftirqd/300:18:143
13967993226,4cyclictest41-21ksoftirqd/323:23:343
13967993226,4cyclictest41-21ksoftirqd/322:57:073
13967993226,4cyclictest41-21ksoftirqd/320:53:593
13966993227,3cyclictest33-21ksoftirqd/221:00:192
13966993227,3cyclictest33-21ksoftirqd/220:45:182
13966993227,3cyclictest33-21ksoftirqd/200:28:002
13966993221,9cyclictest33-21ksoftirqd/223:25:182
13965993227,3cyclictest25-21ksoftirqd/123:53:241
13965993227,3cyclictest25-21ksoftirqd/121:36:121
13965993227,3cyclictest25-21ksoftirqd/119:10:341
13965993226,4cyclictest25-21ksoftirqd/123:04:591
13965993226,4cyclictest25-21ksoftirqd/122:48:581
1396599320,1cyclictest0-21swapper/100:10:171
1396599320,1cyclictest0-21swapper/100:10:161
1396499324,6cyclictest9-21ksoftirqd/022:18:410
13964993217,5cyclictest9-21ksoftirqd/023:05:250
13964993215,5cyclictest9-21ksoftirqd/023:15:190
13967993126,3cyclictest41-21ksoftirqd/322:08:533
13967993125,4cyclictest41-21ksoftirqd/323:03:323
13967993125,4cyclictest41-21ksoftirqd/322:32:563
13967993124,5cyclictest41-21ksoftirqd/323:18:213
13967993110,5cyclictest41-21ksoftirqd/319:15:213
13966993127,2cyclictest33-21ksoftirqd/222:54:592
13966993127,2cyclictest33-21ksoftirqd/220:20:192
13966993125,3cyclictest33-21ksoftirqd/221:30:202
13965993126,3cyclictest25-21ksoftirqd/123:25:221
13965993126,3cyclictest25-21ksoftirqd/121:22:351
13965993113,15cyclictest11424-21date23:25:011
13964993125,3cyclictest9-21ksoftirqd/019:30:130
13967993025,3cyclictest41-21ksoftirqd/322:41:303
13967993024,4cyclictest41-21ksoftirqd/321:17:183
13967993024,4cyclictest41-21ksoftirqd/319:37:523
13967993013,4cyclictest41-21ksoftirqd/319:41:283
13965993025,3cyclictest25-21ksoftirqd/121:52:331
138491300,0ptp4l401ktimersoftd/322:25:123
13967992924,3cyclictest41-21ksoftirqd/323:45:143
13967992924,3cyclictest41-21ksoftirqd/322:46:283
13967992924,3cyclictest41-21ksoftirqd/321:40:413
13967992924,3cyclictest41-21ksoftirqd/321:23:473
13967992924,3cyclictest41-21ksoftirqd/320:24:143
13967992924,3cyclictest41-21ksoftirqd/300:25:163
13967992910,5cyclictest41-21ksoftirqd/321:25:163
13965992923,4cyclictest25-21ksoftirqd/121:46:201
1396599290,4cyclictest19883-21irqrtprio20:25:161
13967992822,4cyclictest41-21ksoftirqd/300:02:263
1396599280,2cyclictest0-21swapper/120:10:171
13967992724,2cyclictest41-21ksoftirqd/323:45:003
13967992724,2cyclictest41-21ksoftirqd/323:45:003
13967992722,3cyclictest41-21ksoftirqd/322:50:413
1396599273,21cyclictest15755-21swap00:35:261
1396799267,7cyclictest21279-21cron20:30:003
1396799265,5cyclictest41-21ksoftirqd/319:20:183
13967992418,4cyclictest41-21ksoftirqd/322:35:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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