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2026-09-06 - 12:43
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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 Sun Sep 06, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1673529731,54sleep10-21swapper/119:06:311
17249999660,20cyclictest26-21ksoftirqd/121:10:141
17244998966,11cyclictest14-21ksoftirqd/023:45:110
17244998670,10cyclictest14-21ksoftirqd/023:55:130
33052850,13chrt3308-21needreboot21:30:311
17244998557,15cyclictest14-21ksoftirqd/023:05:130
17244998262,11cyclictest14-21ksoftirqd/022:50:190
17244998254,18cyclictest14-21ksoftirqd/022:20:120
17244998253,17cyclictest0-21swapper/022:40:150
17244998251,15cyclictest14-21ksoftirqd/021:55:130
17244998151,18cyclictest14-21ksoftirqd/020:40:150
17244998151,16cyclictest14-21ksoftirqd/023:35:110
17244998048,21cyclictest14-21ksoftirqd/021:35:260
17244997956,13cyclictest14-21ksoftirqd/000:25:140
17244997952,17cyclictest14-21ksoftirqd/000:00:140
17244997950,17cyclictest14-21ksoftirqd/020:05:110
17244997850,15cyclictest14-21ksoftirqd/022:25:240
17244997754,12cyclictest14-21ksoftirqd/021:50:170
17244997754,12cyclictest14-21ksoftirqd/021:50:170
1679127618,48sleep00-21swapper/019:07:070
17244997536,33cyclictest14-21ksoftirqd/019:15:300
17244997442,19cyclictest0-21swapper/020:15:260
226212730,34sleep10-21swapper/123:55:011
17244997349,14cyclictest0-21swapper/019:35:160
17244997244,19cyclictest14-21ksoftirqd/019:20:160
17244997244,17cyclictest14-21ksoftirqd/022:10:160
17244997239,19cyclictest14-21ksoftirqd/023:40:130
17244997216,47cyclictest0-21swapper/000:15:130
17244997145,17cyclictest14-21ksoftirqd/023:00:130
17244997139,19cyclictest14-21ksoftirqd/019:45:150
17244997044,15cyclictest14-21ksoftirqd/021:30:160
17244997012,50cyclictest0-21swapper/000:10:140
17244996838,10cyclictest14-21ksoftirqd/019:10:410
17244996641,21cyclictest14-21ksoftirqd/021:00:130
17249996545,12cyclictest26-21ksoftirqd/123:15:141
17244996542,18cyclictest14-21ksoftirqd/019:50:200
17244996539,18cyclictest14-21ksoftirqd/020:10:150
17244996518,39cyclictest12463-21aten2.4-expect20:25:190
17249996440,8cyclictest0-21swapper/122:16:451
17244996421,38cyclictest243-21systemd-journal20:51:290
17244996413,46cyclictest0-21swapper/019:55:150
1724999637,16cyclictest151rcu_preempt20:00:001
17244996336,19cyclictest0-21swapper/023:30:130
17244996333,22cyclictest14-21ksoftirqd/020:45:110
17244996240,16cyclictest17232-21cyclictest19:40:110
17244996234,22cyclictest14-21ksoftirqd/022:35:140
17244996231,24cyclictest243-21systemd-journal22:35:010
1724499622,51cyclictest23537-21/usr/sbin/munin19:25:170
17249996115,41cyclictest0-21swapper/120:02:261
17244996136,18cyclictest17232-21cyclictest20:30:120
17244996133,21cyclictest731-21cron21:25:000
17244996131,17cyclictest0-21swapper/022:45:140
17244996130,19cyclictest0-21swapper/023:20:250
17244996126,28cyclictest14-21ksoftirqd/021:50:000
17244996120,35cyclictest10662-21aten2.4-expect20:20:160
17244996117,37cyclictest3354-21aten2.4-expect20:00:150
17244996116,39cyclictest8401-21aten2.4-expect23:15:160
17244996114,37cyclictest15658-21aten2.4-expect22:05:160
17244996041,11cyclictest14-21ksoftirqd/021:25:200
17244996022,30cyclictest29880-21aten2.4-expect21:15:150
17244996020,34cyclictest243-21systemd-journal00:22:120
17249995917,37cyclictest0-21swapper/100:15:161
17244995942,11cyclictest14-21ksoftirqd/000:05:220
17244995940,11cyclictest14-21ksoftirqd/000:30:300
17244995939,11cyclictest14-21ksoftirqd/021:40:210
17244995928,22cyclictest4412-21basename00:35:200
17244995928,18cyclictest0-21swapper/020:35:120
17244995918,14cyclictest26409-21aten2.4-expect21:05:190
1724999586,11cyclictest0-21swapper/123:25:121
17249995811,41cyclictest0-21swapper/123:10:271
17244995841,9cyclictest14-21ksoftirqd/022:00:290
17244995839,10cyclictest14-21ksoftirqd/021:10:200
17244995834,17cyclictest14-21ksoftirqd/022:15:170
17244995828,21cyclictest457-21dbus-daemon23:00:000
17244995825,24cyclictest14-21ksoftirqd/023:10:140
17244995815,35cyclictest22843-21aten2.4-expect20:55:150
17244995815,30cyclictest0-21swapper/019:30:150
17244995740,10cyclictest14-21ksoftirqd/023:25:510
17244995718,32cyclictest21075-21aten2.4-expect23:50:180
1724999566,44cyclictest0-21swapper/120:05:351
17249995623,28cyclictest0-21swapper/123:20:151
1724999556,43cyclictest0-21swapper/122:45:291
1724999556,43cyclictest0-21swapper/122:25:401
1724999556,42cyclictest0-21swapper/121:50:031
1724999556,42cyclictest0-21swapper/121:50:031
17249995531,8cyclictest26-21ksoftirqd/122:35:171
17249995527,21cyclictest22632-21cron20:55:011
17249995519,8cyclictest26-21ksoftirqd/121:57:041
17249995519,23cyclictest26-21ksoftirqd/100:04:191
17249995510,8cyclictest151rcu_preempt20:50:001
1724999547,42cyclictest0-21swapper/120:14:531
1724999547,42cyclictest0-21swapper/119:50:341
1724999546,42cyclictest0-21swapper/123:00:321
1724999545,21cyclictest0-21swapper/123:56:161
1724999545,21cyclictest0-21swapper/120:20:031
17249995438,10cyclictest0-21swapper/100:20:301
17249995437,12cyclictest0-21swapper/119:25:161
1724999543,45cyclictest0-21swapper/120:30:311
17249995433,17cyclictest13249-21wc20:25:371
1724999539,39cyclictest0-21swapper/121:25:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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