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2025-12-03 - 06:50
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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 Wed Dec 03, 2025 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
79769911583,22cyclictest14-21ksoftirqd/022:30:220
79769911583,22cyclictest14-21ksoftirqd/022:30:210
79839911275,25cyclictest26-21ksoftirqd/122:35:171
79839910733,29cyclictest0-21swapper/120:55:111
79839910664,30cyclictest26-21ksoftirqd/123:00:151
79839910529,65cyclictest0-21swapper/119:50:161
79839910364,28cyclictest26-21ksoftirqd/121:30:141
7983999944,43cyclictest26-21ksoftirqd/120:30:251
7983999850,36cyclictest26-21ksoftirqd/121:05:151
7983999752,32cyclictest26-21ksoftirqd/121:50:171
7976999713,71cyclictest0-21swapper/020:15:150
7983999651,30cyclictest26-21ksoftirqd/122:40:151
7983999651,30cyclictest26-21ksoftirqd/122:40:141
7983999650,34cyclictest26-21ksoftirqd/122:15:141
7983999648,32cyclictest26-21ksoftirqd/120:25:151
7983999648,32cyclictest26-21ksoftirqd/120:25:141
7983999613,69cyclictest0-21swapper/120:05:141
82172950,6chrt8220-21sed20:40:020
7983999513,67cyclictest0-21swapper/123:50:171
7983999511,68cyclictest19270-21diskmemload21:10:161
7976999513,70cyclictest0-21swapper/022:55:130
7983999437,39cyclictest26-21ksoftirqd/120:35:161
7983999432,50cyclictest26-21ksoftirqd/121:35:141
7983999314,64cyclictest0-21swapper/121:55:121
7983999313,67cyclictest0-21swapper/100:35:131
7983999313,66cyclictest0-21swapper/123:55:121
7983999311,67cyclictest0-21swapper/119:55:161
7983999212,65cyclictest0-21swapper/100:25:151
7983999212,60cyclictest0-21swapper/122:05:251
7983999212,60cyclictest0-21swapper/122:05:241
7983999210,66cyclictest0-21swapper/123:40:151
7976999210,66cyclictest19270-21diskmemload21:10:120
7983999126,51cyclictest0-21swapper/119:15:141
7983999113,61cyclictest0-21swapper/122:45:141
7983999113,61cyclictest0-21swapper/120:50:161
7983999111,60cyclictest0-21swapper/120:45:171
7976999111,69cyclictest0-21swapper/019:10:130
747429138,42sleep10-21swapper/119:06:401
7983999043,30cyclictest26-21ksoftirqd/123:25:131
7983999012,57cyclictest0-21swapper/122:30:231
7983999012,57cyclictest0-21swapper/122:30:231
7983999011,61cyclictest0-21swapper/122:20:151
776229018,26sleep00-21swapper/019:09:130
798399897,63cyclictest10152-21seq23:45:141
7983998936,32cyclictest26-21ksoftirqd/100:20:151
797699899,25cyclictest0-21swapper/000:20:140
7983998812,54cyclictest0-21swapper/119:45:141
7983998811,60cyclictest0-21swapper/119:25:161
7983998810,28cyclictest0-21swapper/119:40:171
7983998810,28cyclictest0-21swapper/119:40:161
798399877,59cyclictest553-21runrttasks19:30:131
7983998712,58cyclictest0-21swapper/100:30:221
7976998711,23cyclictest0-21swapper/000:15:240
7983998637,34cyclictest0-21swapper/123:15:231
7983998610,57cyclictest0-21swapper/119:10:151
7976998613,63cyclictest0-21swapper/021:00:260
7976998612,63cyclictest0-21swapper/022:15:160
7983998538,32cyclictest0-21swapper/123:30:131
7983998531,32cyclictest26-21ksoftirqd/121:45:111
7983998513,52cyclictest0-21swapper/120:10:241
7983998512,53cyclictest0-21swapper/119:35:171
7983998511,53cyclictest0-21swapper/100:15:231
7983998411,55cyclictest0-21swapper/120:40:121
7976998322,21cyclictest448-21dbus-daemon23:50:000
7976998318,32cyclictest8472-21aten2.4-expect23:40:170
7976998311,30cyclictest9895-21apt-get20:45:140
7976998310,59cyclictest0-21swapper/023:20:120
7983998210,25cyclictest0-21swapper/122:55:131
7976998259,14cyclictest2755-21apt-get21:55:120
7976998221,19cyclictest29464-21http20:10:020
7983998132,33cyclictest0-21swapper/119:20:181
7983998130,34cyclictest0-21swapper/121:25:141
7983998032,30cyclictest26-21ksoftirqd/100:10:121
797699805,55cyclictest17679-21apt-get22:35:150
7983997826,34cyclictest0-21swapper/123:05:141
7976997822,19cyclictest448-21dbus-daemon21:10:000
7976997816,26cyclictest14-21ksoftirqd/023:55:240
7983997729,34cyclictest0-21swapper/123:20:121
798399772,54cyclictest0-21swapper/122:25:121
797699773,38cyclictest254-21systemd-journal22:47:130
797699773,37cyclictest254-21systemd-journal23:17:190
797699773,36cyclictest254-21systemd-journal23:37:210
797699764,34cyclictest12438-21df20:50:210
7976997620,21cyclictest448-21dbus-daemon20:14:590
7976997612,19cyclictest20934-21aten2.4-expect19:45:150
7976997545,23cyclictest14-21ksoftirqd/022:50:280
797699753,35cyclictest3108-21apt-get23:25:120
797699735,39cyclictest0-21swapper/021:21:550
7983997221,30cyclictest0-21swapper/100:05:141
7983997213,35cyclictest0-21swapper/122:00:111
797699725,36cyclictest0-21swapper/023:30:220
7976997211,27cyclictest15747-21/usr/sbin/munin00:00:190
7983997118,33cyclictest0-21swapper/122:50:141
7983997117,31cyclictest0-21swapper/123:10:161
7983997112,35cyclictest0-21swapper/123:35:141
797699718,23cyclictest31704-21apt-get21:45:150
7983997024,27cyclictest0-21swapper/121:20:131
797699703,17cyclictest26051-21apt-get00:30:140
7976997024,17cyclictest26032-21sshd21:27:490
7983996810,38cyclictest26-21ksoftirqd/100:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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