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2026-08-30 - 05:35
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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 Sun Aug 30, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37634202277215,48sleep00-21swapper/019:05:060
37648532259193,50sleep10-21swapper/119:06:241
376531599150145,3cyclictest3858547-21kworker/u8:122:14:120
376532999114104,8cyclictest3859780-21fwupd22:14:121
136599560,6rtkit-daemon0-21swapper/119:41:201
136599540,6rtkit-daemon3809944-21df_inode21:00:161
376531599532,10cyclictest3929751-21apt-get23:55:140
136599510,4rtkit-daemon1364-21rtkit-daemon20:11:391
38142592490,4sleep13813706-21/usr/sbin/munin21:10:191
136599480,11rtkit-daemon0-21swapper/022:36:320
38212342470,3sleep03821223-21cstates21:20:140
136599460,3rtkit-daemon0-21swapper/021:09:030
136599440,3rtkit-daemon0-21swapper/122:40:181
136599440,3rtkit-daemon0-21swapper/021:02:000
136599440,3rtkit-daemon0-21swapper/020:52:130
136599440,3rtkit-daemon0-21swapper/019:10:390
376531599432,8cyclictest3817403-21apt-get21:15:140
136599430,3rtkit-daemon0-21swapper/022:31:550
136599430,3rtkit-daemon0-21swapper/021:56:450
136599420,3rtkit-daemon0-21swapper/022:00:530
376531599413,11cyclictest3887762-21apt-get22:55:110
136599410,8rtkit-daemon0-21swapper/020:47:060
136599410,3rtkit-daemon0-21swapper/122:44:130
376532999404,11cyclictest3769993-21apt-get19:20:121
376531599404,7cyclictest3915262-21apt-get23:35:130
136599400,3rtkit-daemon0-21swapper/021:12:280
376532999382,14cyclictest3838714-21apt-get21:45:131
376531599382,10cyclictest3922408-21apt-get23:45:120
136599380,4rtkit-daemon1364-21rtkit-daemon00:38:310
136599380,3rtkit-daemon0-21swapper/120:33:270
136599380,3rtkit-daemon0-21swapper/020:42:420
3765329993712,5cyclictest3797733-21idleruntime-cro20:30:001
376531599373,9cyclictest3785723-21apt-get20:00:120
376531599373,8cyclictest3799885-21apt-get20:35:120
376531599372,11cyclictest3939652-21python300:10:040
376531599363,7cyclictest3953401-21apt-get00:30:140
376531599353,7cyclictest3881052-21apt-get22:45:160
136599350,3rtkit-daemon0-21swapper/123:16:260
136599350,3rtkit-daemon0-21swapper/122:24:270
376531599343,8cyclictest3908345-21apt-get23:25:140
376531599341,12cyclictest3867288-21apt-get22:25:130
3765329993310,21cyclictest3820814-21tr21:20:001
136599310,4rtkit-daemon1364-21rtkit-daemon23:18:381
136599310,4rtkit-daemon1364-21rtkit-daemon22:54:271
136599310,4rtkit-daemon1364-21rtkit-daemon00:32:141
376531599305,9cyclictest13-21ksoftirqd/000:15:370
136599300,4rtkit-daemon1364-21rtkit-daemon00:39:411
136599300,1rtkit-daemon1364-21rtkit-daemon00:28:211
38392352290,4sleep00-21swapper/021:45:200
376531599287,7cyclictest13-21ksoftirqd/020:24:030
376531599286,7cyclictest13-21ksoftirqd/020:07:250
376532999262,8cyclictest3887762-21apt-get22:55:151
3765329992611,10cyclictest3936494-21apt-get00:05:141
136599260,1rtkit-daemon1364-21rtkit-daemon20:18:201
136599260,14rtkit-daemon38665402sleep122:23:541
376532999259,11cyclictest3768010-21apt-get19:15:151
3765329992511,8cyclictest3891288-21apt-get23:00:121
376531599254,9cyclictest13-21ksoftirqd/021:54:160
376531599253,7cyclictest13-21ksoftirqd/023:06:500
3765315992511,9cyclictest3883793-1kworker/u9:223:20:130
37998222240,1sleep10-21swapper/120:35:011
376532999246,12cyclictest3803829-21apt-get20:45:141
376532999244,18cyclictest3921939-21apt-config23:45:011
376532999242,16cyclictest3821067-21apt-get21:20:141
376532999242,15cyclictest3853389-21apt-get22:05:151
376532999242,15cyclictest3775878-21apt-get19:35:131
376532999242,15cyclictest3775878-21apt-get19:35:131
3765329992419,3cyclictest26-21ksoftirqd/100:00:001
376532999240,21cyclictest3946224-21perf00:20:001
136599240,4rtkit-daemon0-21swapper/022:18:290
376532999234,17cyclictest3918483-21ls23:40:001
376532999234,12cyclictest3794002-21apt-get20:20:131
376532999232,14cyclictest3805793-21apt-get20:50:141
376532999232,14cyclictest3787688-21apt-get20:05:121
376532999232,14cyclictest3765466-21apt-get19:10:131
3765329992311,8cyclictest3813456-21diskmemload00:25:001
3765329992310,8cyclictest61750irq/132-enp2s021:25:131
3765329992310,8cyclictest26-21ksoftirqd/121:40:141
376531599232,7cyclictest13-21ksoftirqd/019:33:000
376531599232,4cyclictest13-21ksoftirqd/022:06:250
376531599231,6cyclictest761-21rs:main0
136599230,3rtkit-daemon1364-21rtkit-daemon21:32:550
39362302220,4sleep1251rcuc/100:05:001
376532999227,9cyclictest3894698-21apt-get23:05:131
376532999225,10cyclictest3881052-21apt-get22:45:141
376532999224,9cyclictest3781783-21apt-get19:50:121
376532999224,10cyclictest3827824-21apt-get21:30:121
376532999222,18cyclictest3923224-21ntpq23:45:231
376532999222,14cyclictest3842671-21apt-get21:50:141
376532999222,13cyclictest3870783-21apt-get22:30:131
376532999222,12cyclictest3807751-21apt-get20:55:121
3765329992217,3cyclictest3939612-21apt-get00:10:041
376532999220,20cyclictest3846371-21gdbus21:55:021
376531599225,6cyclictest13-21ksoftirqd/019:56:300
376531599223,11cyclictest3949887-21apt-get00:25:140
376531599223,11cyclictest3898030-21apt-get23:10:120
376531599222,14cyclictest3946449-21apt-get00:20:130
376531599222,14cyclictest3933149-21apt-get00:00:140
376531599222,14cyclictest3884481-21apt-get22:50:130
376531599222,13cyclictest3831374-21apt-get21:35:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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