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2026-03-11 - 15:01
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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 rack6slot0.osadl.org (updated Wed Mar 11, 2026 13:02:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1066199193163,18cyclictest0-21swapper/3009:44:1824
1066199193163,18cyclictest0-21swapper/3009:44:1824
1066199193163,18cyclictest0-21swapper/3009:44:1824
1064499190163,23cyclictest0-21swapper/1710:58:599
1064499190163,23cyclictest0-21swapper/1710:58:599
1064399189178,9cyclictest0-21swapper/1612:36:368
1064399189178,9cyclictest0-21swapper/1612:36:368
1062699188166,19cyclictest0-21swapper/110:40:401
1062699188166,19cyclictest0-21swapper/110:40:401
1066299185174,9cyclictest0-21swapper/3110:42:2625
1066299185174,9cyclictest0-21swapper/3110:42:2625
1066199185151,20cyclictest0-21swapper/3009:36:3424
1066199185151,20cyclictest0-21swapper/3009:36:3424
1066199185151,20cyclictest0-21swapper/3009:36:3424
1064499184148,28cyclictest0-21swapper/1711:50:059
1064499184148,28cyclictest0-21swapper/1711:50:059
106279918467,107cyclictest0-21swapper/212:25:1812
106279918467,107cyclictest0-21swapper/212:25:1812
1064399181170,9cyclictest0-21swapper/1611:35:378
1064399181170,9cyclictest0-21swapper/1611:35:378
1066299180131,26cyclictest0-21swapper/3111:36:0325
1066299180131,26cyclictest0-21swapper/3111:36:0325
1066199180165,3cyclictest0-21swapper/3009:15:0324
1066199180165,3cyclictest0-21swapper/3009:15:0324
1064399180124,48cyclictest37352-21CPU8
1063099180170,8cyclictest0-21swapper/510:39:2835
1063099180170,8cyclictest0-21swapper/510:39:2835
1065199179175,2cyclictest0-21swapper/2308:10:1216
106449917975,59cyclictest0-21swapper/1712:00:439
106449917975,59cyclictest0-21swapper/1712:00:439
1063899179129,47cyclictest4407-21CPU3
1063899179129,47cyclictest4407-21CPU3
1062699178169,4cyclictest0-21swapper/110:19:411
1062699178169,4cyclictest0-21swapper/110:19:411
1066299177156,13cyclictest0-21swapper/3108:14:0625
1066199177153,9cyclictest171rcu_preempt11:22:3724
1066199177153,9cyclictest171rcu_preempt11:22:3724
1066199177145,28cyclictest3543-21CPU24
1066199177145,28cyclictest3543-21CPU24
1066199177121,43cyclictest3544-21CPU24
1066199177121,43cyclictest3544-21CPU24
1066199177121,43cyclictest3544-21CPU24
1064499177148,26cyclictest0-21swapper/1711:11:169
1064499177148,26cyclictest0-21swapper/1711:11:169
10644991751,162cyclictest0-21swapper/1712:05:139
10644991751,162cyclictest0-21swapper/1712:05:139
1062799175132,34cyclictest0-21swapper/211:28:5912
1062799175132,34cyclictest0-21swapper/211:28:5912
1062699175163,10cyclictest0-21swapper/109:28:401
1062699175163,10cyclictest0-21swapper/109:28:401
1062699175163,10cyclictest0-21swapper/109:28:401
1066199173129,17cyclictest0-21swapper/3012:18:4624
1066199173129,17cyclictest0-21swapper/3012:18:4624
1066199173129,17cyclictest0-21swapper/3012:18:4624
1066199173125,22cyclictest0-21swapper/3012:25:2424
1066199173125,22cyclictest0-21swapper/3012:25:2424
10627991731,3cyclictest26242-21systemd-cgroups09:17:5712
10627991731,3cyclictest26242-21systemd-cgroups09:17:5712
10627991731,3cyclictest26242-21systemd-cgroups09:17:5712
1062699173168,2cyclictest0-21swapper/110:02:541
1062699173168,2cyclictest0-21swapper/110:02:541
1066199172159,8cyclictest0-21swapper/3012:09:4024
1066199172159,8cyclictest0-21swapper/3012:09:4024
1066199171148,13cyclictest171rcu_preempt09:30:4224
1066199171148,13cyclictest171rcu_preempt09:30:4224
1066199171139,10cyclictest171rcu_preempt11:42:5424
1066199171139,10cyclictest171rcu_preempt11:42:5424
1066199171138,18cyclictest0-21swapper/3009:25:4524
1066199171138,18cyclictest0-21swapper/3009:25:4524
1066199171138,18cyclictest0-21swapper/3009:25:4524
1066199171120,21cyclictest0-21swapper/3012:32:0024
1066199171120,21cyclictest0-21swapper/3012:32:0024
1066199171104,51cyclictest37353-21CPU24
1066199171104,51cyclictest37353-21CPU24
1065299171121,42cyclictest0-21swapper/2408:12:4717
1064499171159,10cyclictest0-21swapper/1711:28:579
1064499171159,10cyclictest0-21swapper/1711:28:579
1063199171168,2cyclictest0-21swapper/607:55:1636
1063199171168,2cyclictest0-21swapper/607:55:1636
1066299170158,9cyclictest0-21swapper/3111:45:2925
1066299170158,9cyclictest0-21swapper/3111:45:2925
1066199170151,17cyclictest0-21swapper/3007:44:5524
1066199170151,17cyclictest0-21swapper/3007:44:5524
1064399170164,3cyclictest0-21swapper/1611:56:058
1064399170164,3cyclictest0-21swapper/1611:56:058
1063999170161,7cyclictest0-21swapper/1210:54:144
1063999170161,7cyclictest0-21swapper/1210:54:144
1067099169161,6cyclictest0-21swapper/3909:23:5633
1067099169161,6cyclictest0-21swapper/3909:23:5633
1066199169128,29cyclictest37354-21CPU24
1066199169128,29cyclictest37354-21CPU24
1066199169120,23cyclictest0-21swapper/3010:35:0024
1066199169120,23cyclictest0-21swapper/3010:35:0024
1066199169120,23cyclictest0-21swapper/3010:35:0024
1064399169144,19cyclictest0-21swapper/1610:51:528
1064399169144,19cyclictest0-21swapper/1610:51:528
1062999169155,9cyclictest0-21swapper/409:41:4234
1062999169155,9cyclictest0-21swapper/409:41:4234
1062999169155,9cyclictest0-21swapper/409:41:4234
10627991691,2cyclictest0-21swapper/211:39:2812
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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