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2026-10-22 - 03:30
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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 highest latencies:
System rackcslot4.osadl.org (updated Thu Oct 22, 2026 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5612962270208,48sleep10-21swapper/119:07:211
5613332265191,58sleep00-21swapper/019:07:450
56170999116109,5cyclictest597785-21fwupd20:35:281
561704995854,3cyclictest577988-21kworker/u8:120:35:290
136599520,3rtkit-daemon0-21swapper/019:32:310
561709994516,19cyclictest26-21ksoftirqd/123:55:001
136599430,3rtkit-daemon0-21swapper/019:40:260
7115202410,26sleep1710272-21/usr/sbin/munin23:35:241
136599400,3rtkit-daemon0-21swapper/019:26:170
561704993935,3cyclictest13-21ksoftirqd/022:20:000
561709993513,7cyclictest26-21ksoftirqd/121:20:011
561709993513,6cyclictest26-21ksoftirqd/119:20:011
136599340,4rtkit-daemon672365-21apt-get22:40:111
56170999335,6cyclictest26-21ksoftirqd/123:10:121
561709993315,5cyclictest26-21ksoftirqd/121:30:031
561709993314,5cyclictest26-21ksoftirqd/119:55:001
561704993317,2cyclictest707951-21processes23:30:230
561704993312,6cyclictest13-21ksoftirqd/000:25:000
561709993226,3cyclictest26-21ksoftirqd/121:30:011
561709993212,6cyclictest26-21ksoftirqd/120:00:011
56170999316,23cyclictest261ksoftirqd/100:10:011
561704993125,4cyclictest13-21ksoftirqd/020:29:590
561704993110,8cyclictest700977-21unixbench-2d23:20:250
136599310,4rtkit-daemon1364-21rtkit-daemon19:11:091
56170999309,4cyclictest61750irq/132-enp2s023:41:491
561709993014,2cyclictest0-21swapper/122:30:011
56170499309,5cyclictest562114-21fschecks_time19:10:170
56170499308,4cyclictest578560-21cut19:50:010
561704993011,11cyclictest13-21ksoftirqd/021:04:500
136599300,7rtkit-daemon645494-21apt-get22:00:151
561709992912,11cyclictest648741-21apt-get22:05:151
56170499297,7cyclictest13-21ksoftirqd/000:10:150
561704992911,4cyclictest13-21ksoftirqd/023:40:010
56170999281,6cyclictest141rcu_preempt23:25:141
56170999281,6cyclictest141rcu_preempt23:25:141
56170499288,5cyclictest13-21ksoftirqd/020:55:240
56170499287,3cyclictest141rcu_preempt23:15:120
56170499285,2cyclictest141rcu_preempt21:17:470
561704992824,3cyclictest13-21ksoftirqd/020:20:000
561704992812,10cyclictest578659-21apt-get19:50:140
136599280,4rtkit-daemon641679-21ssh21:54:371
561709992720,5cyclictest26-21ksoftirqd/100:05:001
561709992719,6cyclictest26-21ksoftirqd/119:20:001
56170999271,4cyclictest141rcu_preempt20:05:131
561709992714,4cyclictest26-21ksoftirqd/121:40:141
561709992714,3cyclictest26-21ksoftirqd/122:15:231
561709992710,4cyclictest26-21ksoftirqd/122:56:481
56170999270,3cyclictest141rcu_preempt19:30:011
56170499279,8cyclictest13-21ksoftirqd/000:15:560
56170499278,7cyclictest13-21ksoftirqd/023:58:230
56170499278,7cyclictest13-21ksoftirqd/020:32:090
56170499277,8cyclictest13-21ksoftirqd/021:30:080
56170499275,3cyclictest141rcu_preempt22:45:130
56170499273,6cyclictest13-21ksoftirqd/023:45:160
561704992711,10cyclictest582624-21apt-get20:00:140
136599270,18rtkit-daemon749984-21irqstats00:35:221
56170999266,3cyclictest141rcu_preempt23:55:231
56170999266,3cyclictest141rcu_preempt19:20:191
56170999266,3cyclictest141rcu_preempt00:18:001
56170999264,4cyclictest26-21ksoftirqd/121:45:181
56170999264,3cyclictest141rcu_preempt22:45:151
56170999262,5cyclictest141rcu_preempt23:45:111
56170999262,17cyclictest592514-21apt-get20:25:121
561709992619,5cyclictest26-21ksoftirqd/122:55:001
561709992619,5cyclictest26-21ksoftirqd/120:15:001
56170499265,8cyclictest13-21ksoftirqd/021:40:260
56170499263,5cyclictest13-21ksoftirqd/019:55:210
56170499262,3cyclictest141rcu_preempt23:10:210
56170499262,16cyclictest564379-21apt-get19:15:120
56170499262,16cyclictest564379-21apt-get19:15:110
56170499261,3cyclictest141rcu_preempt22:30:120
56170999257,15cyclictest141rcu_preempt22:39:551
561709992520,4cyclictest26-21ksoftirqd/122:35:001
561709992518,5cyclictest26-21ksoftirqd/119:35:011
561709992514,2cyclictest26-21ksoftirqd/121:35:261
561709992510,9cyclictest699741-21apt-get23:20:141
561709992510,2cyclictest141rcu_preempt23:30:351
56170499258,6cyclictest13-21ksoftirqd/022:11:430
56170499257,6cyclictest13-21ksoftirqd/023:00:240
56170499257,3cyclictest141rcu_preempt23:54:590
56170499256,3cyclictest13-21ksoftirqd/020:40:160
56170499254,4cyclictest738086-21kworker/0:100:25:130
56170499254,4cyclictest141rcu_preempt21:22:210
56170499254,3cyclictest141rcu_preempt21:35:150
56170499253,3cyclictest141rcu_preempt22:25:240
561704992520,3cyclictest13-21ksoftirqd/021:30:010
6841322240,6sleep00-21swapper/022:56:020
56170999248,5cyclictest26-21ksoftirqd/121:10:121
56170999246,3cyclictest26-21ksoftirqd/120:00:201
56170999243,13cyclictest594490-21apt-get20:30:141
561709992418,4cyclictest26-21ksoftirqd/119:45:011
561709992417,5cyclictest26-21ksoftirqd/119:40:001
56170999241,5cyclictest26-21ksoftirqd/100:26:521
56170999241,4cyclictest141rcu_preempt23:05:121
56170999241,4cyclictest141rcu_preempt23:05:121
561709992412,3cyclictest26-21ksoftirqd/120:40:131
56170499246,6cyclictest13-21ksoftirqd/022:40:130
56170499246,3cyclictest141rcu_preempt00:30:220
56170499245,7cyclictest13-21ksoftirqd/000:01:080
56170499245,4cyclictest13-21ksoftirqd/023:05:150
56170499245,4cyclictest13-21ksoftirqd/023:05:150
561704992414,8cyclictest714-21dbus-daemon22:40:000
561709992315,6cyclictest26-21ksoftirqd/123:20:011
561709992311,2cyclictest261ksoftirqd/119:45:171
561709992310,12cyclictest26-21ksoftirqd/121:20:291
56170499235,6cyclictest751300-21ssh00:36:470
56170499234,5cyclictest13-21ksoftirqd/000:05:190
56170499233,12cyclictest590540-21apt-get20:20:140
56170499232,3cyclictest141rcu_preempt21:56:420
56170499231,4cyclictest141rcu_preempt22:05:110
561704992314,7cyclictest601228-21ntp_states20:45:220
56170999225,8cyclictest7488491ssh00:34:081
56170999223,13cyclictest652099-21apt-get22:10:121
56170999223,11cyclictest600456-21apt-get20:45:141
561709992216,4cyclictest26-21ksoftirqd/120:25:001
561709992212,6cyclictest26-21ksoftirqd/121:55:121
56170999220,6cyclictest686009-21runrttasks23:00:151
56170499228,3cyclictest13-21ksoftirqd/020:10:140
56170499224,2cyclictest141rcu_preempt23:40:580
56170499224,2cyclictest141rcu_preempt19:20:160
56170499223,4cyclictest610637-21df21:10:150
56170499222,2cyclictest141rcu_preempt22:50:020
561704992214,6cyclictest646768-21diskmemload22:00:280
56170499221,2cyclictest141rcu_preempt23:25:020
56170499221,2cyclictest141rcu_preempt23:25:020
56170999213,10cyclictest608375-21apt-get21:05:141
56170999212,14cyclictest606398-21apt-get21:00:141
561709992114,5cyclictest26-21ksoftirqd/100:25:001
561709992111,5cyclictest61750irq/132-enp2s022:20:141
561709992110,2cyclictest26-21ksoftirqd/120:55:151
561709992110,2cyclictest26-21ksoftirqd/120:15:181
56170999210,19cyclictest733455-21df00:10:161
56170499214,2cyclictest141rcu_preempt21:05:160
56170499214,2cyclictest141rcu_preempt20:05:110
56170499214,10cyclictest572713-21apt-get19:35:110
56170499213,2cyclictest141rcu_preempt22:25:000
56170499212,14cyclictest638692-21taskset21:50:130
56170499210,2cyclictest141rcu_preempt21:46:190
56170499202,10cyclictest602428-21apt-get20:50:120
56170999191,12cyclictest602428-21apt-get20:50:101
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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