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2026-09-03 - 21:36
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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 Thu Sep 03, 2026 13:02:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
831199226216,6cyclictest37257-21qemu-system-x8609:10:5314
831199226216,6cyclictest37257-21qemu-system-x8609:10:5314
832999222208,10cyclictest0-21swapper/3810:00:5132
832999222208,10cyclictest0-21swapper/3810:00:5132
832999222208,10cyclictest0-21swapper/3810:00:5132
832999215209,4cyclictest0-21swapper/3809:58:4332
832999215209,4cyclictest0-21swapper/3809:58:4232
832999215209,4cyclictest0-21swapper/3809:58:4232
832999215208,5cyclictest0-21swapper/3810:05:1232
832999215208,5cyclictest0-21swapper/3810:05:1232
832999215208,5cyclictest0-21swapper/3810:05:1132
83029920995,99cyclictest0-21swapper/1409:41:156
83029920995,99cyclictest0-21swapper/1409:41:146
831199202195,5cyclictest0-21swapper/2111:55:0914
831199202195,5cyclictest0-21swapper/2111:55:0814
829499202198,2cyclictest0-21swapper/708:15:4037
829499202198,2cyclictest0-21swapper/708:15:4037
831199199192,5cyclictest0-21swapper/2111:41:3714
831199199192,5cyclictest0-21swapper/2111:41:3714
831199199192,5cyclictest0-21swapper/2111:41:3614
829599199183,13cyclictest4407-21CPU38
829599199183,13cyclictest4407-21CPU38
832999197133,60cyclictest37351-21CPU32
832999197133,60cyclictest37351-21CPU32
831599196168,25cyclictest2459-21CPU18
831599196168,25cyclictest2459-21CPU18
831599196168,25cyclictest2459-21CPU18
831199196190,4cyclictest142550irq/47-eno1-TxRx-511:49:4714
831199196190,4cyclictest142550irq/47-eno1-TxRx-511:49:4714
829999193184,6cyclictest0-21swapper/1112:25:203
829999193184,6cyclictest0-21swapper/1112:25:193
832999189184,4cyclictest0-21swapper/3812:17:0432
832999189184,4cyclictest0-21swapper/3812:17:0432
832999189184,4cyclictest0-21swapper/3812:17:0432
832999189166,19cyclictest2454-21CPU32
832999189166,19cyclictest2454-21CPU32
832999189166,19cyclictest2454-21CPU32
832999189149,33cyclictest0-21swapper/3807:42:4332
832999189149,33cyclictest0-21swapper/3807:42:4232
832999187175,6cyclictest0-21swapper/3809:02:3732
832999187175,6cyclictest0-21swapper/3809:02:3632
831199187181,4cyclictest0-21swapper/2112:06:3314
831199187181,4cyclictest0-21swapper/2112:06:3214
831199187181,4cyclictest0-21swapper/2112:06:3214
831199187180,5cyclictest0-21swapper/2108:54:1814
831199187180,5cyclictest0-21swapper/2108:54:1714
830499186179,5cyclictest0-21swapper/1610:27:318
830499186179,5cyclictest0-21swapper/1610:27:318
832499185179,4cyclictest0-21swapper/3408:42:5228
832499185179,4cyclictest0-21swapper/3408:42:5228
831999185179,3cyclictest0-21swapper/2911:40:1022
831999185179,3cyclictest0-21swapper/2911:40:1022
831999185179,3cyclictest0-21swapper/2911:40:1022
831199185178,3cyclictest3547-21CPU14
831199185178,3cyclictest3547-21CPU14
832999184171,11cyclictest0-21swapper/3808:50:3832
832999184171,11cyclictest0-21swapper/3808:50:3832
831599184155,26cyclictest3546-21CPU18
831599184155,26cyclictest3546-21CPU18
829999184168,8cyclictest0-21swapper/1109:19:333
829999184168,8cyclictest0-21swapper/1109:19:323
831599183168,9cyclictest171rcu_preempt07:58:4418
831599183168,9cyclictest171rcu_preempt07:58:4318
831199183178,4cyclictest0-21swapper/2111:53:1614
831199183178,4cyclictest0-21swapper/2111:53:1614
830499183151,15cyclictest0-21swapper/1611:01:308
830499183151,15cyclictest0-21swapper/1611:01:298
832499182170,11cyclictest0-21swapper/3411:41:2328
832499182170,11cyclictest0-21swapper/3411:41:2328
832499182170,11cyclictest0-21swapper/3411:41:2328
832099182143,30cyclictest171rcu_preempt10:23:2824
832099182143,30cyclictest171rcu_preempt10:23:2824
832099182143,30cyclictest171rcu_preempt10:23:2724
831199182107,67cyclictest0-21swapper/2111:24:3914
831199182107,67cyclictest0-21swapper/2111:24:3914
832999181174,5cyclictest0-21swapper/3812:27:2332
832999181174,5cyclictest0-21swapper/3812:27:2232
831199181140,11cyclictest171rcu_preempt09:55:0814
831199181140,11cyclictest171rcu_preempt09:55:0814
831199181140,11cyclictest171rcu_preempt09:55:0814
831199180174,4cyclictest0-21swapper/2110:35:4714
831199180174,4cyclictest0-21swapper/2110:35:4614
831199180162,15cyclictest0-21swapper/2111:35:2814
831199180162,15cyclictest0-21swapper/2111:35:2814
830599180169,9cyclictest0-21swapper/1707:21:599
830599180169,9cyclictest0-21swapper/1707:21:589
831199179165,11cyclictest0-21swapper/2107:40:3414
831199179165,11cyclictest0-21swapper/2107:40:3414
829999179175,2cyclictest0-21swapper/1112:00:313
829999179175,2cyclictest0-21swapper/1112:00:303
829999179169,6cyclictest0-21swapper/1109:28:343
829999179169,6cyclictest0-21swapper/1109:28:343
832999178163,7cyclictest0-21swapper/3812:24:1532
832999178163,7cyclictest0-21swapper/3812:24:1432
832999178163,7cyclictest0-21swapper/3812:24:1432
832999178161,8cyclictest171rcu_preempt12:38:5432
832999178161,8cyclictest171rcu_preempt12:38:5332
831599178139,28cyclictest3544-21CPU18
831599178139,28cyclictest3544-21CPU18
83249917759,114cyclictest3609-21CPU28
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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