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2026-06-27 - 12:54
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6.osadl.org (updated Sat Jun 27, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2493021250,7chrt24926-21apt-get20:35:011
26832210021,31sleep10-21swapper/119:08:311
27164999654,22cyclictest26-21ksoftirqd/119:20:111
27160999563,22cyclictest25396-1kworker/u9:120:40:130
2694228915,64sleep00-21swapper/019:09:080
27164998850,21cyclictest26-21ksoftirqd/123:05:141
27164998751,20cyclictest26-21ksoftirqd/120:45:121
27160998760,14cyclictest14-21ksoftirqd/021:35:120
27160998663,13cyclictest14-21ksoftirqd/023:20:110
27160998662,13cyclictest14-21ksoftirqd/000:20:110
27160998457,14cyclictest14-21ksoftirqd/022:55:220
27160998254,15cyclictest14-21ksoftirqd/023:00:260
11862820,20sleep126-21ksoftirqd/100:00:031
27160998153,18cyclictest14-21ksoftirqd/020:35:230
27160997952,17cyclictest14-21ksoftirqd/021:05:130
2716499789,10cyclictest0-21swapper/120:25:141
2716499789,10cyclictest0-21swapper/120:25:141
27160997848,17cyclictest14-21ksoftirqd/000:00:120
27160997750,16cyclictest14-21ksoftirqd/021:00:250
27160997749,19cyclictest14-21ksoftirqd/020:15:130
27160997749,18cyclictest14-21ksoftirqd/020:45:130
27160997748,18cyclictest14-21ksoftirqd/000:15:130
27160997649,17cyclictest14-21ksoftirqd/021:20:110
27160997648,18cyclictest14-21ksoftirqd/021:50:120
27160997447,19cyclictest14-21ksoftirqd/023:55:140
27160997447,17cyclictest14-21ksoftirqd/020:00:110
27160997446,18cyclictest14-21ksoftirqd/022:15:110
27160997442,18cyclictest0-21swapper/021:25:150
124832730,8sleep10-21swapper/121:30:021
27160997241,18cyclictest0-21swapper/021:30:130
27160997144,21cyclictest14-21ksoftirqd/021:45:170
27160997140,18cyclictest0-21swapper/000:05:160
27160997044,17cyclictest14-21ksoftirqd/019:25:160
27160997043,17cyclictest14-21ksoftirqd/020:20:100
27160997042,19cyclictest14-21ksoftirqd/023:35:110
27160997041,17cyclictest0-21swapper/019:45:110
27160996849,11cyclictest14-21ksoftirqd/020:25:130
27160996849,11cyclictest14-21ksoftirqd/020:25:130
27160996737,18cyclictest0-21swapper/023:25:140
27160996712,18cyclictest0-21swapper/022:30:110
258242670,6sleep0171rcuc/022:05:290
2716099664,24cyclictest367-21cron19:25:010
27160996637,17cyclictest0-21swapper/023:50:140
27160996635,18cyclictest9352-21runrttasks19:50:130
27160996621,35cyclictest4910-21aten2.4-expect00:10:160
2716499646,49cyclictest12613-21apt-get23:00:251
27160996437,21cyclictest14-21ksoftirqd/021:10:220
27160996430,27cyclictest14-21ksoftirqd/000:35:120
27160996340,18cyclictest14-21ksoftirqd/019:30:120
27160996321,37cyclictest23479-21aten2.4-expect20:30:170
27160996243,10cyclictest14-21ksoftirqd/022:40:240
27160996233,17cyclictest0-21swapper/023:15:140
27160996232,18cyclictest14-21ksoftirqd/019:35:120
27160996223,34cyclictest30530-21tail22:20:160
27160996133,22cyclictest457-21dbus-daemon20:15:010
27160996131,25cyclictest14-21ksoftirqd/020:05:160
27160996131,25cyclictest14-21ksoftirqd/020:05:160
27160996117,36cyclictest21494-21aten2.4-expect21:55:180
262942610,5chrt0-21swapper/122:05:411
27164996035,20cyclictest29745-21sshd23:47:321
27160996029,20cyclictest14-21ksoftirqd/022:10:120
27160996029,20cyclictest14-21ksoftirqd/022:10:120
27160996027,27cyclictest14-21ksoftirqd/000:30:120
27160996019,35cyclictest5993-21aten2.4-expect19:40:170
27160996019,34cyclictest29626-21aten2.4-expect19:15:170
27160996019,34cyclictest23571-21aten2.4-expect22:00:270
27160996015,37cyclictest23212-21aten2.4-expect23:30:150
2716499593,50cyclictest12704-21latency_hist20:00:011
27164995915,11cyclictest0-21swapper/120:40:341
27164995912,11cyclictest0-21swapper/121:35:321
27160995944,9cyclictest14-21ksoftirqd/021:40:360
27160995940,10cyclictest14-21ksoftirqd/023:45:290
27160995935,17cyclictest14-21ksoftirqd/022:25:260
27160995934,19cyclictest14-21ksoftirqd/023:10:360
27160995934,17cyclictest14-21ksoftirqd/023:10:000
27160995934,17cyclictest14-21ksoftirqd/019:10:260
27160995930,17cyclictest0-21swapper/022:35:130
27160995929,22cyclictest14-21ksoftirqd/022:45:270
27160995929,18cyclictest0-21swapper/020:55:120
27160995918,35cyclictest30714-21aten2.4-expect20:50:140
27160995916,19cyclictest243-21systemd-journal19:56:000
27160995914,36cyclictest10118-21aten2.4-expect00:25:170
27164995830,14cyclictest26-21ksoftirqd/119:55:001
27160995812,39cyclictest14-21ksoftirqd/021:15:120
27164995733,18cyclictest801-21gpm22:40:231
27164995711,11cyclictest0-21swapper/121:30:191
27160995729,17cyclictest0-21swapper/022:50:110
27160995714,34cyclictest26696-21aten2.4-expect23:40:130
2716499566,44cyclictest0-21swapper/100:00:371
2716499562,48cyclictest25514-21taskset20:35:271
2716499556,43cyclictest0-21swapper/120:05:051
2716499556,43cyclictest0-21swapper/120:05:051
27164995537,11cyclictest26-21ksoftirqd/122:00:481
27164995523,14cyclictest26-21ksoftirqd/119:15:201
2716499552,16cyclictest30272-21aten2.4_r3power23:50:161
2716499552,14cyclictest4699-21grep19:35:271
2716499548,41cyclictest0-21swapper/121:10:341
2716499547,42cyclictest0-21swapper/122:10:261
2716499547,42cyclictest0-21swapper/122:10:261
2716499547,10cyclictest0-21swapper/122:30:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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