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2026-01-01 - 17:41
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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 Thu Jan 01, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67689823370,10sleep0676873-21fschecks_time07:05:200
6780462258184,59sleep10-21swapper/107:07:271
179699760,4rtkit-daemon1795-21rtkit-daemon09:27:310
7520672620,5sleep10-21swapper/109:40:351
7898512500,4sleep10-21swapper/110:30:121
179699490,3rtkit-daemon1795-21rtkit-daemon09:25:191
179699480,4rtkit-daemon1795-21rtkit-daemon11:17:141
179699480,3rtkit-daemon1795-21rtkit-daemon12:30:100
7547602470,1chrt754761-21/usr/sbin/munin09:45:151
179699470,4rtkit-daemon1795-21rtkit-daemon09:06:220
179699460,3rtkit-daemon1795-21rtkit-daemon11:21:460
179699430,4rtkit-daemon714791-21apt-get08:40:110
179699390,4rtkit-daemon0-21swapper/008:36:150
179699390,3rtkit-daemon0-21swapper/007:37:171
7485222370,5sleep00-21swapper/009:36:110
179699370,5rtkit-daemon758482-21runrttasks09:50:110
179699370,4rtkit-daemon726737-21diskmemload09:10:280
179699370,4rtkit-daemon0-21swapper/007:36:210
179699370,3rtkit-daemon0-21swapper/110:57:211
179699370,3rtkit-daemon0-21swapper/110:46:521
179699370,3rtkit-daemon0-21swapper/011:29:130
179699370,3rtkit-daemon0-21swapper/009:44:330
179699370,3rtkit-daemon0-21swapper/008:52:280
179699360,3rtkit-daemon0-21swapper/011:58:270
179699360,3rtkit-daemon0-21swapper/009:04:560
179699360,3rtkit-daemon0-21swapper/007:56:440
179699360,3rtkit-daemon0-21swapper/007:41:530
179699360,3rtkit-daemon0-21swapper/007:29:230
179699360,3rtkit-daemon0-21swapper/007:13:540
179699350,4rtkit-daemon816297-21ssh11:04:280
179699350,4rtkit-daemon1795-21rtkit-daemon09:16:410
179699350,4rtkit-daemon1795-21rtkit-daemon08:15:371
179699350,3rtkit-daemon0-21swapper/108:26:551
179699350,3rtkit-daemon0-21swapper/010:02:550
179699350,3rtkit-daemon0-21swapper/009:58:250
179699350,3rtkit-daemon0-21swapper/009:45:560
179699350,3rtkit-daemon0-21swapper/008:46:580
179699350,3rtkit-daemon0-21swapper/007:33:380
179699350,3rtkit-daemon0-21swapper/007:24:400
179699350,3rtkit-daemon0-21swapper/007:17:590
67842599344,23cyclictest724970-21apt-get09:05:131
179699340,4rtkit-daemon0-21swapper/007:47:590
179699340,3rtkit-daemon0-21swapper/108:58:430
179699340,3rtkit-daemon0-21swapper/011:40:181
179699340,3rtkit-daemon0-21swapper/010:25:520
179699340,3rtkit-daemon0-21swapper/010:18:450
179699340,3rtkit-daemon0-21swapper/008:06:111
67842599338,5cyclictest26-21ksoftirqd/111:20:141
179699330,4rtkit-daemon1795-21rtkit-daemon12:09:321
179699330,3rtkit-daemon1795-21rtkit-daemon08:04:190
179699330,3rtkit-daemon0-21swapper/010:08:580
179699320,3rtkit-daemon1795-21rtkit-daemon11:40:320
179699320,3rtkit-daemon1795-21rtkit-daemon11:33:320
179699320,3rtkit-daemon0-21swapper/110:43:400
8226032310,4sleep00-21swapper/011:11:210
67842599312,10cyclictest26-21ksoftirqd/112:35:251
678425993112,12cyclictest722610-21apt-get09:00:141
67842599310,7cyclictest681064-21apt-get07:15:131
179699310,4rtkit-daemon1795-21rtkit-daemon12:36:290
179699310,4rtkit-daemon1795-21rtkit-daemon11:38:040
179699310,3rtkit-daemon1795-21rtkit-daemon09:30:351
179699310,3rtkit-daemon0-21swapper/008:55:261
179699310,3rtkit-daemon0-21swapper/008:38:551
67842599308,6cyclictest26-21ksoftirqd/112:15:131
67842599306,3cyclictest26-21ksoftirqd/112:30:211
67842599306,11cyclictest141rcu_preempt11:30:211
179699300,3rtkit-daemon0-21swapper/110:55:260
179699300,3rtkit-daemon0-21swapper/110:52:510
179699300,3rtkit-daemon0-21swapper/010:10:291
67842599296,5cyclictest26-21ksoftirqd/110:17:271
678425992926,2cyclictest18150irq/39-mmc009:50:261
678425992913,4cyclictest26-21ksoftirqd/111:10:011
678425992912,5cyclictest26-21ksoftirqd/111:45:111
179699290,3rtkit-daemon0-21swapper/112:08:120
179699290,3rtkit-daemon0-21swapper/109:32:200
179699290,3rtkit-daemon0-21swapper/108:20:360
179699290,3rtkit-daemon0-21swapper/009:18:551
179699290,3rtkit-daemon0-21swapper/007:44:011
67842599289,4cyclictest26-21ksoftirqd/108:40:211
67842599288,4cyclictest26-21ksoftirqd/110:20:011
678425992814,9cyclictest766183-21apt-get10:00:141
678425992812,4cyclictest26-21ksoftirqd/110:10:011
678421992825,2cyclictest66950irq/132-enp2s012:26:040
678421992815,9cyclictest782201-21apt-get10:20:190
179699280,3rtkit-daemon1795-21rtkit-daemon07:53:590
179699280,3rtkit-daemon0-21swapper/110:48:570
179699280,3rtkit-daemon0-21swapper/110:35:190
179699280,3rtkit-daemon0-21swapper/011:50:561
179699280,3rtkit-daemon0-21swapper/009:38:061
179699280,3rtkit-daemon0-21swapper/008:34:351
67842599278,4cyclictest26-21ksoftirqd/110:50:231
67842599276,4cyclictest26-21ksoftirqd/110:28:161
678425992713,3cyclictest26-21ksoftirqd/111:05:001
678425992711,5cyclictest26-21ksoftirqd/111:10:171
678425992711,10cyclictest727005-21apt-get09:10:131
678425992710,2cyclictest141rcu_preempt11:36:131
678421992718,7cyclictest817956-21swap11:05:240
179699270,3rtkit-daemon1795-21rtkit-daemon08:29:550
179699270,3rtkit-daemon0-21swapper/011:28:561
179699270,1rtkit-daemon1795-21rtkit-daemon11:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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