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2025-12-27 - 18:40
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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 Sat Dec 27, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8185982267226,27sleep00-21swapper/007:06:590
8188522241199,28sleep10-21swapper/107:09:431
90387221080,5sleep00-21swapper/009:55:320
9531672610,3sleep0953161-21ssh11:00:200
179699580,4rtkit-daemon1795-21rtkit-daemon10:52:491
179699560,6rtkit-daemon917104-21runrttasks10:13:150
179699530,4rtkit-daemon1795-21rtkit-daemon12:19:300
179699530,3rtkit-daemon0-21swapper/010:01:470
179699520,4rtkit-daemon1795-21rtkit-daemon12:03:510
179699520,3rtkit-daemon1795-21rtkit-daemon07:25:040
179699510,4rtkit-daemon1795-21rtkit-daemon09:37:580
179699510,4rtkit-daemon1795-21rtkit-daemon07:35:190
179699510,3rtkit-daemon1795-21rtkit-daemon08:19:530
179699510,3rtkit-daemon0-21swapper/009:23:010
179699490,3rtkit-daemon1795-21rtkit-daemon10:46:570
10105292490,1chrt1010530-21/usr/sbin/munin12:15:151
179699480,4rtkit-daemon1795-21rtkit-daemon10:35:470
179699480,3rtkit-daemon1795-21rtkit-daemon11:59:270
179699480,3rtkit-daemon1795-21rtkit-daemon11:52:400
179699480,20rtkit-daemon0-21swapper/107:55:110
179699470,3rtkit-daemon0-21swapper/009:31:470
179699460,3rtkit-daemon1795-21rtkit-daemon12:34:501
179699460,18rtkit-daemon0-21swapper/110:54:250
179699440,17rtkit-daemon860951-21runrttasks08:53:170
179699430,16rtkit-daemon1795-21rtkit-daemon07:44:460
179699420,4rtkit-daemon1795-21rtkit-daemon09:00:430
179699410,3rtkit-daemon0-21swapper/009:05:240
81901399401,4cyclictest13-21ksoftirqd/008:35:010
81901399401,4cyclictest13-21ksoftirqd/008:35:010
179699400,3rtkit-daemon0-21swapper/010:31:110
179699400,3rtkit-daemon0-21swapper/009:15:180
81901999390,6cyclictest1-21systemd11:30:011
81901999389,2cyclictest26-21ksoftirqd/108:05:011
179699380,3rtkit-daemon0-21swapper/011:33:060
81901999374,12cyclictest26-21ksoftirqd/108:35:011
81901999374,12cyclictest26-21ksoftirqd/108:35:011
81901399372,5cyclictest13-21ksoftirqd/008:25:000
179699370,6rtkit-daemon892316-21ssh09:40:330
179699370,3rtkit-daemon0-21swapper/009:52:060
179699370,3rtkit-daemon0-21swapper/009:25:030
179699360,4rtkit-daemon896552-21ssh09:46:080
179699360,3rtkit-daemon0-21swapper/010:27:190
179699360,3rtkit-daemon0-21swapper/010:17:420
179699350,5rtkit-daemon978822-21ssh11:34:231
179699350,3rtkit-daemon799-21wpa_supplicant11:06:050
179699350,3rtkit-daemon0-21swapper/009:12:230
81901999340,4cyclictest26-21ksoftirqd/111:05:001
179699340,4rtkit-daemon1795-21rtkit-daemon07:32:470
179699340,3rtkit-daemon0-21swapper/010:27:481
179699340,3rtkit-daemon0-21swapper/009:40:471
819013993310,2cyclictest141rcu_preempt10:45:010
179699330,4rtkit-daemon902064-21ssh09:54:431
179699330,3rtkit-daemon0-21swapper/009:28:571
81901999323,8cyclictest26-21ksoftirqd/110:35:211
819019993214,6cyclictest26-21ksoftirqd/110:10:011
81901999320,5cyclictest26-21ksoftirqd/112:40:021
179699320,5rtkit-daemon959447-21ssh11:08:231
179699320,3rtkit-daemon0-21swapper/009:34:561
819019993127,2cyclictest897831-21ssh09:48:451
81901999310,8cyclictest837166-21ls07:55:001
81901399312,3cyclictest141rcu_preempt12:35:010
179699310,4rtkit-daemon1795-21rtkit-daemon11:40:540
179699310,4rtkit-daemon1795-21rtkit-daemon10:06:440
819019993026,3cyclictest66950irq/132-enp2s010:24:341
81901999300,6cyclictest26-21ksoftirqd/111:15:011
81901399306,6cyclictest843051-21perf08:10:000
179699300,4rtkit-daemon1795-21rtkit-daemon08:57:110
179699300,4rtkit-daemon1795-21rtkit-daemon07:14:330
179699300,3rtkit-daemon0-21swapper/009:35:331
81901999299,2cyclictest141rcu_preempt09:10:011
81901999298,3cyclictest141rcu_preempt08:00:001
81901999297,2cyclictest141rcu_preempt10:45:231
81901999297,12cyclictest26-21ksoftirqd/107:15:211
819019992918,6cyclictest853506-21apt-get08:35:171
819019992914,4cyclictest26-21ksoftirqd/111:55:001
819019992910,3cyclictest26-21ksoftirqd/110:30:171
81901399297,2cyclictest141rcu_preempt11:20:150
81901399297,10cyclictest13-21ksoftirqd/010:56:200
81901399296,6cyclictest13-21ksoftirqd/007:15:220
179699290,3rtkit-daemon1795-21rtkit-daemon11:45:191
179699290,3rtkit-daemon0-21swapper/009:59:051
81901999288,5cyclictest26-21ksoftirqd/107:40:011
81901999288,2cyclictest141rcu_preempt12:25:011
81901999287,18cyclictest141rcu_preempt10:55:181
81901999281,12cyclictest26-21ksoftirqd/108:25:001
81901999280,7cyclictest850234-21sort08:25:241
81901399287,2cyclictest141rcu_preempt12:25:240
819013992812,4cyclictest13-21ksoftirqd/011:16:390
819013992812,2cyclictest141rcu_preempt12:06:480
179699280,3rtkit-daemon0-21swapper/111:36:080
179699280,21rtkit-daemon819007-21cyclictest12:35:190
81901999279,4cyclictest26-21ksoftirqd/112:27:401
81901999275,9cyclictest0-21swapper/111:24:271
81901999273,17cyclictest983260-21apt-get11:40:141
81901999273,11cyclictest995160-21apt-get11:55:141
81901999270,8cyclictest861485-21expr08:55:161
81901399273,2cyclictest141rcu_preempt08:40:010
819013992713,4cyclictest13-21ksoftirqd/010:20:270
819013992712,4cyclictest13-21ksoftirqd/011:12:470
179699270,3rtkit-daemon1795-21rtkit-daemon07:48:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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