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2026-01-02 - 18:39
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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 Fri Jan 02, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40056502264188,27sleep10-21swapper/107:09:211
40053652256215,27sleep00-21swapper/007:06:190
400582599642,40cyclictest4076026-21apt-get09:35:100
40571132610,3sleep14057111-21tail09:10:251
41008652600,5sleep10-21swapper/110:06:131
40130862590,5sleep10-21swapper/107:25:161
400582599580,26cyclictest4055698-21date09:10:010
400582599572,40cyclictest4122105-21apt-get10:35:150
400582599571,40cyclictest4055526-21diskmemload12:11:020
400582599570,38cyclictest4164663-40apt-check11:30:080
400582599570,28cyclictest4173303-21tr11:40:240
400582599570,28cyclictest4173303-21tr11:40:230
400582599570,28cyclictest4046999-21sed08:50:010
400582599561,39cyclictest4055526-21diskmemload10:17:430
400582599561,38cyclictest4020549-21apt-get07:45:060
400582599561,37cyclictest5027-21apt-get12:15:130
400582599561,36cyclictest4087667-21apt-get09:50:130
400582599560,40cyclictest4055526-21diskmemload12:03:380
400582599560,30cyclictest4055526-21diskmemload12:35:230
400582599560,28cyclictest4091459-21apt-get09:55:130
400582599560,26cyclictest4102857-21latency_hist10:10:010
400582599551,37cyclictest4129894-21apt-get10:45:110
400582599551,32cyclictest4055526-21diskmemload09:20:490
400582599551,30cyclictest4048836-21apt-get08:55:070
400582599550,39cyclictest4055526-21diskmemload09:13:550
400582599550,32cyclictest4193542-21ssh12:06:540
400582599550,28cyclictest4184834-21grep11:55:250
400582599550,28cyclictest4069169-21grep09:25:260
400582599550,25cyclictest4016593-21sh07:35:000
400582599547,34cyclictest0-21swapper/011:21:060
400582599547,33cyclictest16887-21cat12:30:170
400582599541,38cyclictest4055526-21diskmemload11:12:380
400582599541,36cyclictest4018800-21apt-get07:40:120
400582599541,26cyclictest1-21systemd10:45:000
400582599540,38cyclictest4118293-21apt-get10:30:140
400582599540,38cyclictest4055526-21diskmemload10:11:150
400582599540,38cyclictest4055526-21diskmemload09:16:310
400582599540,32cyclictest13726-21/usr/sbin/munin12:25:230
400582599540,31cyclictest4145663-21ssh11:05:190
400582599540,27cyclictest4180985-21grep11:50:240
400582599540,27cyclictest1-21systemd07:55:010
400582599540,26cyclictest4026857-21sh08:00:000
400582599532,34cyclictest4083672-21apt-get09:45:130
400582599531,36cyclictest4176121-21apt-get11:45:150
400582599530,38cyclictest4055526-21diskmemload11:15:190
400582599530,28cyclictest4138331-21ntpq10:55:190
400582599530,27cyclictest8873-21apt-get12:20:140
400582599530,26cyclictest4098854-21munin-run10:05:010
179699530,4rtkit-daemon1795-21rtkit-daemon12:02:051
400582599521,35cyclictest4042679-21apt-get08:40:130
400582599521,35cyclictest4042679-21apt-get08:40:130
400582599521,32cyclictest4037287-21/usr/sbin/munin08:25:180
4005825995211,30cyclictest850-21runrttasks09:02:170
400582599520,37cyclictest4168576-21apt-get11:35:150
400582599520,37cyclictest4133617-21apt-get10:50:130
400582599520,36cyclictest4160363-21apt-get11:25:130
400582599520,36cyclictest4079852-21apt-get09:40:120
400582599520,35cyclictest4027035-21apt-get08:00:110
400582599520,31cyclictest4041272-21/usr/sbin/munin08:35:160
400582599520,29cyclictest4032890-21apt-get08:15:150
400582599520,28cyclictest4114391-21date10:25:010
400582599520,27cyclictest4141373-21apt-get11:00:120
179699520,5rtkit-daemon1795-21rtkit-daemon07:12:581
400583099511,11cyclictest4168576-21apt-get11:35:131
400582599511,35cyclictest4114566-21apt-get10:25:100
400582599511,34cyclictest4071982-21apt-get09:30:130
400582599511,30cyclictest4031183-21grep08:10:150
400582599511,29cyclictest4012870-21apt-get07:25:110
400582599510,34cyclictest4009426-21/usr/sbin/munin07:15:230
400582599510,34cyclictest4005970-21apt-get07:10:130
400582599510,31cyclictest4048378-21uptime08:50:270
400582599510,30cyclictest4040047-21/usr/sbin/munin08:30:240
400583099509,6cyclictest4110627-21apt-get10:20:121
400583099502,7cyclictest4126033-21apt-get10:40:141
4005830995013,20cyclictest4045102-40apt-check08:45:221
4005830995011,22cyclictest4055526-21diskmemload10:37:161
400582599506,32cyclictest4012168-21taskset07:24:110
400582599491,36cyclictest4030482-21seq08:07:290
400583099482,7cyclictest1309-21apt-get12:10:141
400582599480,29cyclictest4016749-21munin-node07:35:100
400582599480,27cyclictest4034840-21munin-node08:20:110
179699470,4rtkit-daemon1795-21rtkit-daemon11:30:211
40186322450,1chrt4018598-21/usr/sbin/munin07:40:011
179699450,3rtkit-daemon1795-21rtkit-daemon12:17:331
41755282440,4sleep10-21swapper/111:44:261
41755282440,4sleep10-21swapper/111:44:251
400583099420,9cyclictest4062439-21ssh09:17:431
400583099411,7cyclictest4055526-21diskmemload09:28:131
4005830994025,13cyclictest66950irq/132-enp2s009:34:401
400583099400,5cyclictest20271-21apt-get12:35:111
179699400,3rtkit-daemon0-21swapper/108:07:261
400583099390,6cyclictest4055526-21diskmemload09:40:071
400583099390,5cyclictest4055526-21diskmemload09:36:311
179699390,3rtkit-daemon0-21swapper/107:44:261
400583099388,3cyclictest0-21swapper/107:25:011
179699380,3rtkit-daemon0-21swapper/108:10:261
179699370,3rtkit-daemon0-21swapper/109:07:011
179699370,3rtkit-daemon0-21swapper/108:40:021
179699370,3rtkit-daemon0-21swapper/108:40:021
179699370,3rtkit-daemon0-21swapper/108:25:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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