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2026-06-23 - 10:30
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Tue Jun 23, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4521702318277,27sleep00-21swapper/019:08:040
4520092317275,28sleep10-21swapper/119:06:211
179699670,13rtkit-daemon1795-21rtkit-daemon19:57:161
179699560,7rtkit-daemon641743-21sh00:21:181
45249799547,14cyclictest625182-21grep00:00:010
179699540,4rtkit-daemon1795-21rtkit-daemon19:31:281
45249799499,23cyclictest599737-21apt-get23:25:120
179699490,3rtkit-daemon1795-21rtkit-daemon21:57:251
179699490,1rtkit-daemon1795-21rtkit-daemon22:57:420
45250299487,23cyclictest522846-21grep21:40:001
179699480,4rtkit-daemon1795-21rtkit-daemon19:41:411
45249799475,11cyclictest537344-21sed22:00:000
179699460,3rtkit-daemon1795-21rtkit-daemon21:14:230
452502994512,12cyclictest463929-21kernelversion19:35:201
45249799457,21cyclictest639996-21apt-get00:20:130
45249799457,21cyclictest555982-21apt-get22:25:060
45249799457,11cyclictest456898-21apt-get19:20:060
45249799448,15cyclictest599217-21seq23:24:230
179699440,3rtkit-daemon0-21swapper/119:31:340
45249799439,14cyclictest538411-21awk22:00:230
45249799436,17cyclictest520687-21grep21:35:250
452497994312,10cyclictest500333-21diskmemload00:30:210
179699430,3rtkit-daemon0-21swapper/119:35:200
45249799429,12cyclictest632438-21cnf-update-db00:10:010
45249799429,10cyclictest500333-21diskmemload22:42:250
452497994213,12cyclictest529873-21seq21:49:220
452497994210,12cyclictest489330-21/usr/sbin/munin20:40:170
179699420,3rtkit-daemon0-21swapper/121:53:480
179699420,3rtkit-daemon0-21swapper/121:02:170
179699420,16rtkit-daemon1795-21rtkit-daemon20:53:201
45249799419,11cyclictest500333-21diskmemload21:29:040
45249799417,13cyclictest509067-21ntpq21:20:210
45249799417,13cyclictest36-21kcompactd022:30:170
45249799414,10cyclictest567227-21date22:40:010
179699410,4rtkit-daemon1795-21rtkit-daemon23:43:020
179699410,3rtkit-daemon0-21swapper/122:17:210
179699410,3rtkit-daemon0-21swapper/120:23:340
45250299402,15cyclictest632640-21apt-get00:10:131
45249799408,9cyclictest619302-21awk23:50:250
45249799404,15cyclictest505470-21grep21:15:230
45249799404,12cyclictest585010-21cut23:05:010
452497994011,9cyclictest627094-21seq00:01:270
452497994010,14cyclictest459966-21cat19:25:170
179699400,3rtkit-daemon1795-21rtkit-daemon23:05:210
179699400,3rtkit-daemon1795-21rtkit-daemon21:34:470
179699400,3rtkit-daemon0-21swapper/119:45:550
45250299390,11cyclictest610936-21apt-get23:40:141
45249799395,9cyclictest552235-21apt-config22:20:020
452497993910,10cyclictest652032-21/usr/sbin/munin00:35:260
179699390,4rtkit-daemon500333-21diskmemload21:24:451
179699390,3rtkit-daemon0-21swapper/120:27:490
179699390,3rtkit-daemon0-21swapper/120:16:580
179699390,3rtkit-daemon0-21swapper/119:42:420
45250299388,13cyclictest0-21swapper/122:15:401
45250299382,12cyclictest563744-21apt-get22:35:151
45250299380,14cyclictest470025-21ntpq19:50:221
45250299380,12cyclictest556619-21apt-get22:25:101
45249799389,10cyclictest850-21runrttasks19:59:060
45249799388,11cyclictest525820-21ssh21:43:390
45249799388,10cyclictest500333-21diskmemload22:47:190
45249799387,11cyclictest574676-21/usr/sbin/munin22:50:140
45249799385,19cyclictest498590-21apt-get21:05:130
45249799385,10cyclictest629773-21ps00:05:230
45249799383,20cyclictest541312-21apt-get22:05:150
179699380,7rtkit-daemon620886-21rm23:53:581
179699380,3rtkit-daemon1795-21rtkit-daemon19:13:470
179699380,3rtkit-daemon0-21swapper/100:30:231
45250299377,9cyclictest515084-21sh21:29:071
452502993711,8cyclictest507480-21sh21:19:011
45250299371,12cyclictest650753-21apt-get00:35:131
45250299370,10cyclictest544858-21apt-get22:10:141
45249799378,12cyclictest590235-21/usr/sbin/munin23:10:250
45249799378,11cyclictest500333-21diskmemload23:15:050
45249799374,18cyclictest604948-21ssh23:31:250
45249799374,18cyclictest500333-21diskmemload23:45:180
45249799374,18cyclictest500333-21diskmemload00:15:390
179699370,5rtkit-daemon615250-21ntpq23:45:211
179699370,1rtkit-daemon1795-21rtkit-daemon20:02:221
45250299363,13cyclictest0-21swapper/122:30:211
45250299362,9cyclictest26-21ksoftirqd/123:35:121
452502993628,6cyclictest498132-21taskset21:02:271
45250299360,20cyclictest483533-21sed20:25:201
45250299360,12cyclictest552591-21apt-get22:20:131
45250299360,11cyclictest603175-21apt-get23:30:151
45249799368,9cyclictest609334-21ssh23:38:050
45249799368,9cyclictest476626-21taskset20:07:300
45249799367,13cyclictest474904-21taskset20:04:550
45249799364,12cyclictest544858-21apt-get22:10:140
179699360,4rtkit-daemon528388-21ssh21:46:101
45250299353,13cyclictest0-21swapper/119:29:001
45250299353,13cyclictest0-21swapper/100:09:341
45250299352,13cyclictest0-21swapper/123:10:551
45250299351,11cyclictest488821-21apt-get20:40:131
45250299350,24cyclictest457305-21apt-config19:20:021
45250299350,12cyclictest636403-21apt-get00:15:141
45250299350,11cyclictest585210-21apt-get23:05:121
45250299350,11cyclictest500621-21apt-get21:10:141
45249799356,12cyclictest645606-21sh00:26:480
45249799355,10cyclictest484896-21awk20:30:120
179699350,3rtkit-daemon1795-21rtkit-daemon22:08:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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