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2026-09-19 - 09:54
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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 Sep 19, 2026 01:01:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3063099230224,3cyclictest0-21swapper/1520:30:147
3063099230224,3cyclictest0-21swapper/1520:30:137
3063899222217,3cyclictest14522-21kworker/u81:0+events_unbound00:09:2114
3063899222217,3cyclictest14522-21kworker/u81:0+events_unbound00:09:2114
3066099210167,19cyclictest0-21swapper/3922:12:1033
3066099210167,19cyclictest0-21swapper/3922:12:1033
3065799208201,4cyclictest2462-21CPU31
3065799208201,4cyclictest2462-21CPU31
3061599207203,2cyclictest14522-21kworker/u81:0+events_unbound00:13:331
3061599207203,2cyclictest14522-21kworker/u81:0+events_unbound00:13:321
3061599207203,2cyclictest14522-21kworker/u81:0+events_unbound00:13:321
3062999204151,48cyclictest2447-21CPU6
3062999204151,48cyclictest2447-21CPU6
3061999204172,27cyclictest3610-21CPU35
3061999204172,27cyclictest3610-21CPU35
3061999204172,27cyclictest3610-21CPU35
3061899204139,58cyclictest37357-21CPU34
3061899204139,58cyclictest37357-21CPU34
3063499203193,6cyclictest37351-21CPU9
3063499203193,6cyclictest37351-21CPU9
3064899202188,13cyclictest0-21swapper/3021:39:4724
3064899202188,13cyclictest0-21swapper/3021:39:4724
3061799200163,14cyclictest0-21swapper/300:33:2423
3061799200163,14cyclictest0-21swapper/300:33:2323
3063999197187,7cyclictest0-21swapper/2222:52:2415
3063999197187,7cyclictest0-21swapper/2222:52:2415
3063999197184,11cyclictest0-21swapper/2223:59:2215
3063999197184,11cyclictest0-21swapper/2223:59:2215
3062999196153,40cyclictest0-21swapper/1422:50:586
3062999196153,40cyclictest0-21swapper/1422:50:576
3062999195165,23cyclictest17483-21nfsd21:23:146
3062999195165,23cyclictest17483-21nfsd21:23:136
3062999195165,23cyclictest17483-21nfsd21:23:136
3066099193156,25cyclictest0-21swapper/3920:55:0533
3066099193156,25cyclictest0-21swapper/3920:55:0533
3063999193137,44cyclictest37355-21CPU15
3063999193137,44cyclictest37355-21CPU15
3061999193103,77cyclictest3609-21CPU35
3061999193103,77cyclictest3609-21CPU35
3065599191183,6cyclictest0-21swapper/3621:40:4830
3065599191183,6cyclictest0-21swapper/3621:40:4830
3065299191187,2cyclictest0-21swapper/3423:53:5828
3065299191187,2cyclictest0-21swapper/3423:53:5828
3065199191188,2cyclictest0-21swapper/3300:04:3527
3065199191188,2cyclictest0-21swapper/3300:04:3527
3065499190153,34cyclictest0-21swapper/3521:01:2429
3065499190153,34cyclictest0-21swapper/3521:01:2429
3061899190169,17cyclictest4407-21CPU34
3061899190169,17cyclictest4407-21CPU34
3061899190129,58cyclictest2466-21CPU34
3061899190129,58cyclictest2466-21CPU34
3061899190129,58cyclictest2466-21CPU34
3066099189179,8cyclictest0-21swapper/3923:32:0433
3066099189179,8cyclictest0-21swapper/3923:32:0433
3065499189147,40cyclictest0-21swapper/3500:25:1229
3065499189147,40cyclictest0-21swapper/3500:25:1229
3064899189184,3cyclictest0-21swapper/3023:25:5424
3064899189184,3cyclictest0-21swapper/3023:25:5424
3063999189175,10cyclictest0-21swapper/2220:10:4715
3063999189175,10cyclictest0-21swapper/2220:10:4715
3062899189181,6cyclictest0-21swapper/1323:56:385
3062899189181,6cyclictest0-21swapper/1323:56:385
3061499189172,15cyclictest0-21swapper/021:15:460
3061499189172,15cyclictest0-21swapper/021:15:460
3061499189172,15cyclictest0-21swapper/021:15:460
3065499188156,28cyclictest0-21swapper/3521:54:5429
3065499188156,28cyclictest0-21swapper/3521:54:5329
3065499188156,28cyclictest0-21swapper/3521:54:5329
3065199188183,3cyclictest0-21swapper/3322:30:1527
3065199188183,3cyclictest0-21swapper/3322:30:1527
3061799188174,7cyclictest38124-21kworker/u81:2+events_unbound23:39:1023
3061799188174,7cyclictest38124-21kworker/u81:2+events_unbound23:39:1023
3063999187162,12cyclictest171rcu_preempt00:35:5415
3063999187162,12cyclictest171rcu_preempt00:35:5315
3062199187184,2cyclictest0-21swapper/719:20:1937
3064299186142,11cyclictest0-21swapper/2522:53:5718
3064299186142,11cyclictest0-21swapper/2522:53:5718
306299918687,94cyclictest0-21swapper/1421:05:146
306299918687,94cyclictest0-21swapper/1421:05:146
306299918687,94cyclictest0-21swapper/1421:05:146
3062799186159,18cyclictest0-21swapper/1223:12:554
3062799186159,18cyclictest0-21swapper/1223:12:554
3062199186175,7cyclictest0-21swapper/723:53:5837
3062199186175,7cyclictest0-21swapper/723:53:5837
3066099185131,34cyclictest0-21swapper/3922:29:1533
3066099185131,34cyclictest0-21swapper/3922:29:1533
3064299185137,38cyclictest37352-21CPU18
3064299185137,38cyclictest37352-21CPU18
3063999185152,16cyclictest0-21swapper/2221:44:0315
3063999185152,16cyclictest0-21swapper/2221:44:0315
3062499185137,30cyclictest3542-21CPU39
3062499185137,30cyclictest3542-21CPU39
3063999184150,13cyclictest171rcu_preempt22:17:4615
3063999184150,13cyclictest171rcu_preempt22:17:4615
30629991841,180cyclictest0-21swapper/1422:30:216
30629991841,180cyclictest0-21swapper/1422:30:206
3064599183172,7cyclictest0-21swapper/2800:03:0921
3064599183172,7cyclictest0-21swapper/2800:03:0921
3064299183141,35cyclictest0-21swapper/2520:00:3018
3064299183141,35cyclictest0-21swapper/2520:00:3018
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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