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2026-06-18 - 15:26
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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 Thu Jun 18, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279149910477,16cyclictest14-21ksoftirqd/008:20:130
279149910380,15cyclictest14-21ksoftirqd/009:55:120
279149910373,18cyclictest14-21ksoftirqd/009:25:140
279149910271,20cyclictest14-21ksoftirqd/011:05:120
27914999873,17cyclictest14-21ksoftirqd/010:20:110
27914999868,20cyclictest14-21ksoftirqd/007:40:150
27914999868,18cyclictest14-21ksoftirqd/011:10:110
27914999566,19cyclictest14-21ksoftirqd/007:55:130
27914999565,20cyclictest14-21ksoftirqd/011:25:130
27914999411,40cyclictest14-21ksoftirqd/010:40:140
27914999364,16cyclictest14-21ksoftirqd/008:30:100
27914999363,20cyclictest14-21ksoftirqd/007:10:130
27914999266,18cyclictest14-21ksoftirqd/012:25:120
27914999263,17cyclictest14-21ksoftirqd/007:50:130
27914999147,35cyclictest14-21ksoftirqd/008:45:110
27914999061,19cyclictest14-21ksoftirqd/011:30:120
27914999057,19cyclictest14-21ksoftirqd/010:00:120
27914998960,19cyclictest14-21ksoftirqd/010:10:110
27914998813,61cyclictest0-21swapper/007:15:130
27914998812,66cyclictest0-21swapper/011:35:140
27914998812,62cyclictest0-21swapper/011:45:210
27914998756,18cyclictest14-21ksoftirqd/012:35:120
27914998637,36cyclictest0-21swapper/007:45:130
27914998615,64cyclictest0-21swapper/009:30:120
27914998613,62cyclictest0-21swapper/007:30:120
27914998547,25cyclictest14-21ksoftirqd/009:40:230
27914998547,25cyclictest14-21ksoftirqd/009:40:230
27914998454,21cyclictest14-21ksoftirqd/010:35:110
27914998452,19cyclictest14-21ksoftirqd/012:10:160
27914998451,20cyclictest14-21ksoftirqd/008:50:130
27914998150,20cyclictest14-21ksoftirqd/012:15:140
27914998132,36cyclictest0-21swapper/011:15:120
27914998120,27cyclictest14410-21runrttasks12:30:360
27914998049,20cyclictest14-21ksoftirqd/012:00:240
27914998047,22cyclictest14-21ksoftirqd/010:25:150
27914998014,51cyclictest0-21swapper/010:30:110
2754128018,53sleep00-21swapper/007:07:590
2791699796,17cyclictest0-21swapper/111:55:101
2791699787,54cyclictest0-21swapper/109:25:111
27914997823,25cyclictest1797-21runrttasks07:25:250
27914997816,33cyclictest0-21swapper/011:20:200
27914997813,50cyclictest0-21swapper/010:50:230
27914997813,37cyclictest205472sleep008:19:220
27914997716,46cyclictest0-21swapper/011:50:140
27914997716,20cyclictest9199-21sort09:15:350
27914997713,49cyclictest0-21swapper/008:40:120
27914997645,19cyclictest14-21ksoftirqd/011:40:120
27914997635,27cyclictest14-21ksoftirqd/012:05:140
27914997619,45cyclictest0-21swapper/007:35:120
27914997612,49cyclictest0-21swapper/012:20:110
27914997611,50cyclictest0-21swapper/010:05:120
2617727620,39sleep10-21swapper/107:05:131
27914997542,21cyclictest14-21ksoftirqd/011:00:130
27914997515,42cyclictest0-21swapper/009:45:270
27914997515,34cyclictest0-21swapper/011:55:320
27914997513,39cyclictest6125-21runrttasks09:08:110
27914997424,21cyclictest9282-21apt-get10:50:000
27914997424,21cyclictest9282-21apt-get10:50:000
27914997418,31cyclictest22848-21apt-get08:25:110
27914997418,20cyclictest0-21swapper/009:35:110
27914997417,44cyclictest0-21swapper/009:20:120
2791499738,50cyclictest26656-21runrttasks08:35:240
27914997345,19cyclictest14-21ksoftirqd/008:00:110
27914997320,26cyclictest12320-21sort10:55:350
2791699727,51cyclictest0-21swapper/110:45:131
2791699727,51cyclictest0-21swapper/110:45:131
27914997223,22cyclictest243-21systemd-journal09:51:550
27914997220,26cyclictest32742-21taskset07:20:280
27914997217,44cyclictest0-21swapper/008:05:110
27914997214,32cyclictest1975-21ntp_states08:55:320
27914997118,41cyclictest0-21swapper/009:00:110
27916997024,10cyclictest26-21ksoftirqd/108:27:221
27914997018,41cyclictest0-21swapper/010:15:110
27914997017,26cyclictest6525-21apt-get09:10:110
27914997014,30cyclictest18029-21ntp_offset08:10:270
27916996943,10cyclictest26-21ksoftirqd/111:01:261
27916996942,10cyclictest26791-21sshd10:05:291
27916996713,14cyclictest26-21ksoftirqd/108:00:011
27916996618,24cyclictest32159-21ps10:20:311
27916996526,24cyclictest0-21swapper/108:40:111
27916996522,13cyclictest26-21ksoftirqd/107:38:511
27916996512,15cyclictest26-21ksoftirqd/108:50:011
27916996441,9cyclictest1419-21sshd10:25:321
27916996429,22cyclictest0-21swapper/110:30:111
27916996425,19cyclictest26-21ksoftirqd/107:45:161
27916996424,24cyclictest26-21ksoftirqd/109:05:001
27916996411,20cyclictest26-21ksoftirqd/107:20:121
27916996340,8cyclictest26-21ksoftirqd/109:39:541
27916996313,18cyclictest22384-21apt08:25:001
27916996238,9cyclictest26-21ksoftirqd/111:52:401
27916996226,14cyclictest26-21ksoftirqd/108:05:341
27916996217,13cyclictest26-21ksoftirqd/108:35:051
27916996123,22cyclictest26-21ksoftirqd/111:25:011
27916996112,25cyclictest151rcu_preempt12:15:001
2791699609,16cyclictest26-21ksoftirqd/110:05:011
2791699607,18cyclictest26-21ksoftirqd/109:30:121
2791699605,50cyclictest0-21swapper/107:53:561
27916996043,11cyclictest0-21swapper/109:45:251
27916996020,24cyclictest26-21ksoftirqd/112:25:011
27916996020,24cyclictest26-21ksoftirqd/109:45:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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