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2026-04-04 - 15:35
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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 Sat Apr 04, 2026 13:02:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3896499224217,4cyclictest0-21swapper/3310:05:1627
3896499224217,4cyclictest0-21swapper/3310:05:1627
3896499224217,4cyclictest0-21swapper/3310:05:1627
3895699200185,12cyclictest0-21swapper/2712:15:0520
3895699200185,12cyclictest0-21swapper/2712:15:0420
3894199198171,23cyclictest0-21swapper/1411:23:136
3894199198171,23cyclictest0-21swapper/1411:23:136
3894199198171,23cyclictest0-21swapper/1411:23:136
3893899198147,45cyclictest3543-21CPU3
3893899198147,45cyclictest3543-21CPU3
3892899196192,2cyclictest0-21swapper/309:35:1823
3892899196192,2cyclictest0-21swapper/309:35:1823
3895799195177,8cyclictest171rcu_preempt11:57:1321
3895799195177,8cyclictest171rcu_preempt11:57:1321
3895799195177,8cyclictest171rcu_preempt11:57:1321
3895799191183,6cyclictest0-21swapper/2810:48:5621
3895799191183,6cyclictest0-21swapper/2810:48:5621
3895799191183,6cyclictest0-21swapper/2810:48:5621
3895699185172,5cyclictest0-21swapper/2709:28:0820
3895699185172,5cyclictest0-21swapper/2709:28:0820
3895499185178,5cyclictest0-21swapper/2611:27:2219
3895499185178,5cyclictest0-21swapper/2611:27:2219
3895499185144,26cyclictest37265-21CPU19
3895499185144,26cyclictest37265-21CPU19
3895499185144,26cyclictest37265-21CPU19
3893699185119,36cyclictest3600-21qemu-system-x8610:27:0439
3893699185119,36cyclictest3600-21qemu-system-x8610:27:0439
3893699185119,36cyclictest3600-21qemu-system-x8610:27:0439
389419918333,129cyclictest0-21swapper/1409:20:146
389419918333,129cyclictest0-21swapper/1409:20:136
389419918333,129cyclictest0-21swapper/1409:20:136
3895799182171,9cyclictest0-21swapper/2809:54:3821
3895799182171,9cyclictest0-21swapper/2809:54:3821
3895799182171,9cyclictest0-21swapper/2809:54:3821
3895199182129,37cyclictest37265-21CPU16
3895199182129,37cyclictest37265-21CPU16
3894599182174,4cyclictest0-21swapper/1811:32:2910
3894599182174,4cyclictest0-21swapper/1811:32:2910
3896199181176,2cyclictest0-21swapper/3011:25:1024
3896199181176,2cyclictest0-21swapper/3011:25:1024
38941991812,171cyclictest2459-21CPU6
38941991812,171cyclictest2459-21CPU6
38941991812,171cyclictest2459-21CPU6
3895499180173,6cyclictest0-21swapper/2609:57:4219
3895499180173,6cyclictest0-21swapper/2609:57:4219
3895799179136,16cyclictest0-21swapper/2812:02:4721
3895799179136,16cyclictest0-21swapper/2812:02:4621
3895799179136,16cyclictest0-21swapper/2812:02:4621
3895499179144,11cyclictest0-21swapper/2610:45:4619
3895499179144,11cyclictest0-21swapper/2610:45:4619
3895499179144,11cyclictest0-21swapper/2610:45:4519
3896899178171,4cyclictest0-21swapper/3710:05:1631
3896899178171,4cyclictest0-21swapper/3710:05:1631
3896899178171,4cyclictest0-21swapper/3710:05:1631
3895799178166,10cyclictest0-21swapper/2809:14:4921
3895799178166,10cyclictest0-21swapper/2809:14:4921
3895699178171,5cyclictest0-21swapper/2711:31:4120
3895699178171,5cyclictest0-21swapper/2711:31:4120
3895499178167,7cyclictest0-21swapper/2611:05:5419
3895499178167,7cyclictest0-21swapper/2611:05:5419
3893299178164,10cyclictest0-21swapper/711:57:3437
3893299178164,10cyclictest0-21swapper/711:57:3437
3893299178164,10cyclictest0-21swapper/711:57:3437
3895799177171,2cyclictest0-21swapper/2809:17:5521
3895799177171,2cyclictest0-21swapper/2809:17:5521
3895199177167,9cyclictest0-21swapper/2310:33:3016
3895199177167,9cyclictest0-21swapper/2310:33:3016
3895199177167,9cyclictest0-21swapper/2310:33:3016
3895199177134,40cyclictest0-21swapper/2308:01:4816
3895199177134,40cyclictest0-21swapper/2308:01:4816
3894599177161,14cyclictest0-21swapper/1809:00:2210
3894599177161,14cyclictest0-21swapper/1809:00:2210
3895699176167,7cyclictest0-21swapper/2707:25:2920
3895499176145,27cyclictest0-21swapper/2609:15:2419
3895499176145,27cyclictest0-21swapper/2609:15:2419
3895199176136,22cyclictest37265-21CPU16
3895199176136,22cyclictest37265-21CPU16
3895199176136,22cyclictest37265-21CPU16
3895199176104,60cyclictest0-21swapper/2311:40:5316
3895199176104,60cyclictest0-21swapper/2311:40:5216
38941991761,171cyclictest0-21swapper/1410:00:276
38941991761,171cyclictest0-21swapper/1410:00:276
38941991761,171cyclictest0-21swapper/1410:00:266
3893899176120,45cyclictest2466-21CPU3
3893899176120,45cyclictest2466-21CPU3
3893899176120,45cyclictest2466-21CPU3
389369917637,135cyclictest0-21swapper/910:20:1539
389369917637,135cyclictest0-21swapper/910:20:1539
3894599175168,5cyclictest0-21swapper/1811:47:2410
3894599175168,5cyclictest0-21swapper/1811:47:2410
3897099174162,10cyclictest0-21swapper/3910:09:5633
3897099174162,10cyclictest0-21swapper/3910:09:5533
3897099174162,10cyclictest0-21swapper/3910:09:5533
3896199174161,10cyclictest0-21swapper/3012:01:4824
3896199174161,10cyclictest0-21swapper/3012:01:4824
3896199174161,10cyclictest0-21swapper/3012:01:4824
3895799174140,31cyclictest3609-21CPU21
3895799174140,31cyclictest3609-21CPU21
3895799174140,31cyclictest3609-21CPU21
3895699174159,13cyclictest0-21swapper/2707:15:3120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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