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2025-12-08 - 00:38
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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 rackcslot4.osadl.org (updated Sun Dec 07, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2999962270193,27sleep10-21swapper/107:08:181
2997692266189,27sleep00-21swapper/007:05:530
49985621440,4sleep10-21swapper/112:30:431
3298382610,2sleep00-21swapper/008:20:270
125899570,4rtkit-daemon1257-21rtkit-daemon10:48:220
125899550,4rtkit-daemon1257-21rtkit-daemon11:53:061
125899520,4rtkit-daemon1257-21rtkit-daemon07:36:191
125899510,4rtkit-daemon1257-21rtkit-daemon12:24:011
125899500,4rtkit-daemon1257-21rtkit-daemon07:51:071
125899460,4rtkit-daemon1257-21rtkit-daemon10:22:111
125899440,15rtkit-daemon0-21swapper/108:40:511
5021112420,2sleep1502112-21cat12:35:151
3502292420,4sleep00-21swapper/009:11:050
125899420,4rtkit-daemon1257-21rtkit-daemon09:05:170
125899400,5rtkit-daemon422276-21runrttasks10:45:291
125899400,3rtkit-daemon0-21swapper/011:32:090
125899390,5rtkit-daemon1257-21rtkit-daemon12:25:251
125899380,3rtkit-daemon0-21swapper/111:25:311
125899380,3rtkit-daemon0-21swapper/011:12:540
125899370,4rtkit-daemon1257-21rtkit-daemon10:03:471
125899370,3rtkit-daemon0-21swapper/111:49:551
125899370,3rtkit-daemon0-21swapper/109:38:441
30025699366,10cyclictest439558-21apt-get11:10:131
125899360,3rtkit-daemon0-21swapper/111:48:370
125899360,3rtkit-daemon0-21swapper/108:17:290
125899360,3rtkit-daemon0-21swapper/010:55:080
3886912350,1sleep00-21swapper/010:01:110
30025699357,10cyclictest26-21ksoftirqd/109:25:251
300256993513,4cyclictest26-21ksoftirqd/110:31:561
125899350,5rtkit-daemon396391-21ssh10:11:461
125899350,4rtkit-daemon1257-21rtkit-daemon10:05:051
125899350,4rtkit-daemon1257-21rtkit-daemon09:51:121
125899350,3rtkit-daemon0-21swapper/010:50:030
125899340,4rtkit-daemon1257-21rtkit-daemon10:44:360
125899340,4rtkit-daemon1257-21rtkit-daemon08:45:501
125899340,4rtkit-daemon1257-21rtkit-daemon08:28:451
125899340,3rtkit-daemon1257-21rtkit-daemon08:20:071
125899340,3rtkit-daemon0-21swapper/107:35:580
125899340,3rtkit-daemon0-21swapper/011:39:090
30025699336,10cyclictest26-21ksoftirqd/111:35:261
300256993318,4cyclictest384734-21kworker/u8:210:16:131
300256993312,4cyclictest26-21ksoftirqd/111:05:351
300256993311,4cyclictest26-21ksoftirqd/109:13:431
300256993311,3cyclictest26-21ksoftirqd/110:41:231
300256993311,3cyclictest26-21ksoftirqd/109:30:041
30025699330,8cyclictest447716-21apt-get11:20:131
125899330,3rtkit-daemon0-21swapper/111:53:340
125899330,3rtkit-daemon0-21swapper/108:10:510
125899330,3rtkit-daemon0-21swapper/107:41:570
300256993212,4cyclictest26-21ksoftirqd/109:22:461
300256993210,4cyclictest26-21ksoftirqd/112:00:051
125899320,3rtkit-daemon1257-21rtkit-daemon12:10:551
125899320,3rtkit-daemon1257-21rtkit-daemon11:20:480
125899320,3rtkit-daemon1257-21rtkit-daemon10:39:061
125899320,3rtkit-daemon0-21swapper/112:22:500
125899320,3rtkit-daemon0-21swapper/109:52:170
125899320,3rtkit-daemon0-21swapper/109:33:110
3616552310,5sleep0361652-21ssh09:25:260
30025699315,10cyclictest26-21ksoftirqd/110:52:041
30025699314,10cyclictest26-21ksoftirqd/111:01:441
300256993114,11cyclictest300417-21apt-get07:10:141
300256993112,4cyclictest26-21ksoftirqd/112:18:521
300256993112,4cyclictest26-21ksoftirqd/111:32:291
300256993112,4cyclictest26-21ksoftirqd/111:15:541
300256993111,3cyclictest26-21ksoftirqd/109:58:091
300256993111,3cyclictest26-21ksoftirqd/109:58:081
300256993110,3cyclictest26-21ksoftirqd/111:59:171
125899310,3rtkit-daemon1257-21rtkit-daemon07:34:061
125899310,3rtkit-daemon0-21swapper/107:57:310
125899310,3rtkit-daemon0-21swapper/107:15:090
125899310,3rtkit-daemon0-21swapper/008:51:141
30025699308,4cyclictest26-21ksoftirqd/110:59:051
30025699301,10cyclictest26-21ksoftirqd/109:00:221
300256993010,4cyclictest26-21ksoftirqd/108:37:071
125899300,4rtkit-daemon1257-21rtkit-daemon12:25:390
125899300,4rtkit-daemon1257-21rtkit-daemon09:00:560
125899300,3rtkit-daemon1257-21rtkit-daemon11:42:420
125899300,3rtkit-daemon0-21swapper/112:34:330
125899300,3rtkit-daemon0-21swapper/109:48:350
30025699296,9cyclictest26-21ksoftirqd/109:49:091
30025699296,10cyclictest326910-21apt-get08:15:141
300256992917,3cyclictest26-21ksoftirqd/110:25:021
300256992915,3cyclictest26-21ksoftirqd/107:42:261
300256992912,4cyclictest26-21ksoftirqd/108:13:541
300256992911,4cyclictest26-21ksoftirqd/111:41:151
300256992911,4cyclictest26-21ksoftirqd/108:08:131
30025699290,9cyclictest26-21ksoftirqd/109:10:011
125899290,4rtkit-daemon1257-21rtkit-daemon08:52:350
125899290,3rtkit-daemon0-21swapper/109:58:060
125899290,3rtkit-daemon0-21swapper/109:58:050
125899290,3rtkit-daemon0-21swapper/107:34:130
125899290,3rtkit-daemon0-21swapper/107:25:220
125899290,3rtkit-daemon0-21swapper/008:56:021
300256992812,3cyclictest26-21ksoftirqd/109:15:321
30025699280,7cyclictest307281-21apt-get07:25:121
30025499287,14cyclictest304923-21apt-get07:20:150
300254992825,2cyclictest63750irq/132-enp2s009:37:530
125899280,3rtkit-daemon0-21swapper/112:38:440
125899280,18rtkit-daemon0-21swapper/011:28:080
30025699276,3cyclictest26-21ksoftirqd/109:40:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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