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2026-06-11 - 18:14
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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 Thu Jun 11, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29157132264188,25sleep00-21swapper/019:07:000
29158382263221,28sleep10-21swapper/119:08:231
291614699707,27cyclictest3090221-40gzip00:00:011
291614699678,30cyclictest3061955-21/usr/sbin/munin23:20:221
29292812660,6sleep12929284-21needreboot19:40:211
291614699620,29cyclictest3115685-21apt-config00:35:011
291614699611,27cyclictest3067874-21/usr/sbin/munin23:30:011
179699610,21rtkit-daemon1795-21rtkit-daemon19:53:051
291614699601,41cyclictest2959711-21apt-get21:00:081
30524892590,3sleep10-21swapper/123:09:101
291614699580,31cyclictest3109744-21grep00:25:221
291614699580,28cyclictest3095627-21sed00:05:231
179699580,11rtkit-daemon1795-21rtkit-daemon23:31:251
291614699571,29cyclictest3071792-21apt-get23:35:121
291614699570,31cyclictest2964042-21diskmemload22:15:181
291614699561,40cyclictest2964042-21diskmemload23:01:051
291614699561,27cyclictest850-21runrttasks21:50:231
291614699561,27cyclictest3105672-21grep00:20:211
291614699561,27cyclictest2975605-21cat21:25:011
291614699560,28cyclictest1-21systemd21:30:011
291614699551,37cyclictest3115627-21apt-get00:35:071
291614699551,30cyclictest2931311-21ntpq19:45:211
291614699550,32cyclictest3024236-21sed22:30:181
291614699548,33cyclictest2947452-21awk20:25:251
291614699542,35cyclictest3057194-21apt-get23:15:121
291614699541,39cyclictest3016812-21/usr/sbin/munin22:20:161
291614699541,34cyclictest3008770-21acpi22:10:111
291614699541,28cyclictest3083062-21apt-get23:50:121
291614699540,37cyclictest3075531-21apt-get23:40:121
291614699540,37cyclictest3075531-21apt-get23:40:121
291614699540,33cyclictest3027331-21chrt22:35:031
291614699540,29cyclictest3001491-21apt-get22:00:131
291614699540,29cyclictest2986805-21apt-get21:40:131
291614699540,29cyclictest2968202-21apt-get21:15:121
291614699540,28cyclictest3097485-21chrt00:10:031
291614699540,28cyclictest2964201-21taskset21:10:011
291614699540,27cyclictest3090381-21taskset00:00:021
291614699540,27cyclictest2979468-21apt-get21:30:101
291614699531,41cyclictest2992993-21ssh21:47:431
291614699530,31cyclictest3035966-21sh22:45:411
291614699530,31cyclictest2920844-21cat19:20:131
291614699530,30cyclictest3043809-21chrt22:55:461
291614699530,28cyclictest2955003-21tr20:45:231
291614699525,35cyclictest2956476-21cat20:50:171
291614699525,28cyclictest2925204-21cut19:30:171
2916146995211,25cyclictest2927014-21grep19:35:161
291614699520,34cyclictest2962279-21apt-get21:05:131
291614699520,31cyclictest2964042-21diskmemload23:46:211
291614699520,30cyclictest3022180-21chrt22:27:061
291614699520,29cyclictest3101802-21ntpq00:15:201
291614699520,29cyclictest2984814-21chrt21:35:451
179699520,11rtkit-daemon1795-21rtkit-daemon19:15:151
291614699519,23cyclictest3032725-21sh22:41:161
291614699511,26cyclictest2918043-21sh19:15:001
291614699510,35cyclictest3005199-21apt-get22:05:111
291614699510,31cyclictest2999973-21taskset21:57:261
291614699510,30cyclictest2940096-21taskset20:09:351
291614699510,28cyclictest3054845-21ssh23:11:101
291614699510,28cyclictest2941531-21sed20:10:261
291614699510,25cyclictest2953049-21plymouth20:40:241
291614699500,36cyclictest2934433-21apt-get19:55:121
291614699500,34cyclictest3038204-21apt-get22:50:131
291614699500,31cyclictest2942850-21grep20:15:181
291614699500,27cyclictest2937766-21taskset20:01:021
291614699490,28cyclictest2945014-21ntpq20:20:191
291614699490,28cyclictest2923812-21grep19:25:231
291614699490,27cyclictest2949237-21find20:30:221
291614699484,24cyclictest2950801-21grep20:35:181
291614699480,31cyclictest2959491-21taskset20:58:001
179699430,5rtkit-daemon2990541-21apt-get21:45:120
179699410,3rtkit-daemon0-21swapper/123:50:230
179699410,3rtkit-daemon0-21swapper/122:55:150
179699380,6rtkit-daemon3098072-21irqstats00:10:160
179699380,3rtkit-daemon0-21swapper/123:46:470
179699370,3rtkit-daemon0-21swapper/123:19:580
179699340,3rtkit-daemon0-21swapper/023:55:590
2916142993329,2cyclictest3104758-21kworker/0:000:30:160
179699320,4rtkit-daemon1795-21rtkit-daemon00:28:450
2916142993012,11cyclictest2948172-21apt-get20:30:120
291614299300,8cyclictest3016519-21apt-get22:20:100
179699300,4rtkit-daemon1795-21rtkit-daemon21:08:110
179699300,4rtkit-daemon0-21swapper/120:56:220
179699300,3rtkit-daemon0-21swapper/123:30:340
179699300,3rtkit-daemon0-21swapper/121:34:140
179699300,3rtkit-daemon0-21swapper/120:09:300
179699300,3rtkit-daemon0-21swapper/119:20:070
179699290,4rtkit-daemon1795-21rtkit-daemon22:14:460
179699290,3rtkit-daemon0-21swapper/123:24:010
179699290,3rtkit-daemon0-21swapper/123:10:470
179699290,3rtkit-daemon0-21swapper/121:24:340
179699290,3rtkit-daemon0-21swapper/121:19:200
179699290,3rtkit-daemon0-21swapper/120:27:110
179699290,3rtkit-daemon0-21swapper/119:30:350
179699290,3rtkit-daemon0-21swapper/119:15:020
179699280,3rtkit-daemon1795-21rtkit-daemon22:48:430
179699280,3rtkit-daemon0-21swapper/123:28:250
179699280,3rtkit-daemon0-21swapper/123:06:020
179699280,3rtkit-daemon0-21swapper/122:41:110
179699280,3rtkit-daemon0-21swapper/121:27:270
179699280,3rtkit-daemon0-21swapper/121:12:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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