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2026-05-23 - 19:32
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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 May 23, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8540472317275,28sleep00-21swapper/007:07:540
8540472317275,28sleep00-21swapper/007:07:540
8539702288226,48sleep10-21swapper/107:07:041
8539702288226,48sleep10-21swapper/107:07:031
8683072600,6sleep00-21swapper/007:40:240
10455822590,3sleep00-21swapper/012:20:240
8749562580,5sleep0874945-21python308:00:010
8545642580,5sleep00-21swapper/007:10:130
179699530,4rtkit-daemon1795-21rtkit-daemon07:25:251
10014232520,3sleep11001425-21ntp_offset11:20:211
179699490,3rtkit-daemon0-21swapper/011:45:290
9365962460,2sleep10-21swapper/109:54:171
179699460,3rtkit-daemon0-21swapper/010:41:380
179699450,3rtkit-daemon0-21swapper/009:09:380
179699450,3rtkit-daemon0-21swapper/008:04:260
179699430,3rtkit-daemon0-21swapper/010:54:000
9897632420,1sleep0989762-21wc11:05:140
179699420,3rtkit-daemon0-21swapper/010:30:070
179699420,3rtkit-daemon0-21swapper/008:39:550
8564512410,1sleep00-21swapper/007:15:020
85434599400,38cyclictest903129-21diskmemload12:10:141
179699390,3rtkit-daemon0-21swapper/009:03:270
179699380,7rtkit-daemon1029916-21apt-get12:00:131
179699380,6rtkit-daemon1795-21rtkit-daemon09:35:130
179699380,3rtkit-daemon0-21swapper/008:58:400
9417182340,3sleep1854340-21cyclictest10:00:211
179699340,3rtkit-daemon1795-21rtkit-daemon11:18:181
85434299311,15cyclictest903129-21diskmemload09:13:340
85434299308,8cyclictest13-21ksoftirqd/008:30:010
179699300,3rtkit-daemon0-21swapper/011:40:020
8589092290,10sleep126-21ksoftirqd/107:20:001
854345992910,17cyclictest66950irq/132-enp2s010:55:151
854342992923,4cyclictest913089-21seq09:21:410
179699290,6rtkit-daemon946173-21rm10:05:411
179699290,4rtkit-daemon1795-21rtkit-daemon08:54:331
179699290,1rtkit-daemon1795-21rtkit-daemon12:06:311
179699290,1rtkit-daemon1795-21rtkit-daemon08:06:130
85434599283,5cyclictest261ksoftirqd/110:49:241
85434299289,8cyclictest13-21ksoftirqd/011:58:200
85434299287,11cyclictest0-21swapper/011:36:050
85434299284,8cyclictest13-21ksoftirqd/010:25:230
85434299281,6cyclictest948791-21cat10:10:180
854342992815,5cyclictest13-21ksoftirqd/012:02:470
85434299281,14cyclictest903129-21diskmemload11:33:340
85434299281,14cyclictest903129-21diskmemload09:53:500
85434599276,2cyclictest141rcu_preempt09:25:001
854345992724,2cyclictest66950irq/132-enp2s012:18:171
854345992724,2cyclictest66950irq/132-enp2s008:25:211
85434599272,18cyclictest978134-21apt-get10:50:141
854345992713,9cyclictest867306-21apt-get07:40:121
85434599270,6cyclictest1008109-21df_inode11:30:161
85434299278,7cyclictest13-21ksoftirqd/012:05:110
85434299271,8cyclictest903129-21diskmemload09:15:390
854342992712,9cyclictest947599-1kworker/u9:010:35:140
179699270,1rtkit-daemon1795-21rtkit-daemon08:14:490
9737052260,12sleep126-21ksoftirqd/110:44:161
85434599263,17cyclictest1051780-21apt-get12:30:141
85434599262,18cyclictest1011513-21apt-get11:35:151
854345992612,9cyclictest862918-21apt-get07:30:131
85434299266,3cyclictest141rcu_preempt11:15:210
85434299264,3cyclictest141rcu_preempt11:55:000
85434299261,7cyclictest903129-21diskmemload10:16:350
85434599253,16cyclictest989601-21apt-get11:05:141
85434599253,14cyclictest907299-21apt-get09:15:141
85434599253,14cyclictest865276-21apt-get07:35:131
854345992512,7cyclictest1044461-21apt-get12:20:131
85434599251,17cyclictest952034-21apt-get10:15:131
85434299251,7cyclictest903129-21diskmemload12:35:530
85434299251,12cyclictest903129-21diskmemload09:56:230
85434599249,3cyclictest26-21ksoftirqd/109:41:051
85434599245,17cyclictest0-21swapper/110:35:201
85434599242,15cyclictest899419-21apt-get09:00:131
85434599242,15cyclictest889204-21apt-get08:35:161
85434599242,15cyclictest1022569-21apt-get11:50:141
854345992410,9cyclictest929812-21apt-get09:45:141
85434299247,7cyclictest0-21swapper/008:24:200
85434299246,4cyclictest0-21swapper/010:58:340
854342992420,2cyclictest903129-21diskmemload09:27:530
85434299241,8cyclictest863130-21diskstats07:30:150
85434299241,6cyclictest903129-21diskmemload10:46:150
85434299241,5cyclictest903129-21diskmemload12:32:110
85434599238,13cyclictest965048-21ssh10:31:261
85434599234,17cyclictest903746-21tune2fs09:10:171
85434599234,17cyclictest854830-21tune2fs07:10:171
85434599232,15cyclictest859017-21apt-get07:20:151
85434599232,15cyclictest859017-21apt-get07:20:151
85434599232,14cyclictest993310-21apt-get11:10:141
85434599232,14cyclictest877480-21apt-get08:05:141
85434599230,21cyclictest918880-21fschecks_time09:30:161
85434299239,7cyclictest13-21ksoftirqd/009:40:200
85434299239,4cyclictest903129-21diskmemload11:29:370
85434299236,4cyclictest0-21swapper/009:46:000
85434299233,3cyclictest141rcu_preempt12:28:070
85434299231,6cyclictest903129-21diskmemload11:01:400
85434299231,5cyclictest903129-21diskmemload12:10:400
85434299231,5cyclictest903129-21diskmemload10:06:210
85434599223,13cyclictest901366-21apt-get09:05:141
85434599223,12cyclictest887251-21apt-get08:30:111
85434599222,15cyclictest893122-21apt-get08:45:141
85434599222,13cyclictest869254-21apt-get07:45:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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