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2026-09-10 - 18:32
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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 10, 2026 13:02:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
820799230218,10cyclictest0-21swapper/3310:44:0827
820799230218,10cyclictest0-21swapper/3310:44:0827
820799230218,10cyclictest0-21swapper/3310:44:0827
81849920420,178cyclictest37346-21qemu-system-x8611:40:156
81849920420,178cyclictest37346-21qemu-system-x8611:40:156
816899203199,2cyclictest0-21swapper/008:30:120
817299199174,19cyclictest0-21swapper/312:36:1223
817299199174,19cyclictest0-21swapper/312:36:1123
820599197164,25cyclictest0-21swapper/3210:43:2226
820599197164,25cyclictest0-21swapper/3210:43:2226
820599197164,25cyclictest0-21swapper/3210:43:2226
81729919794,98cyclictest3541-21CPU23
81729919794,98cyclictest3541-21CPU23
81729919794,98cyclictest3541-21CPU23
817299197187,6cyclictest0-21swapper/311:25:0723
817299197187,6cyclictest0-21swapper/311:25:0723
817299197187,6cyclictest0-21swapper/311:25:0723
820599196129,62cyclictest4407-21CPU26
820599196129,62cyclictest4407-21CPU26
8174991951,93cyclictest0-21swapper/511:15:2235
8174991951,93cyclictest0-21swapper/511:15:2135
817199195190,3cyclictest0-21swapper/210:51:5712
817199195190,3cyclictest0-21swapper/210:51:5712
818199194185,8cyclictest0-21swapper/1211:19:344
818199194185,8cyclictest0-21swapper/1211:19:344
8205991931,82cyclictest0-21swapper/3211:25:1226
8205991931,82cyclictest0-21swapper/3211:25:1226
818899192183,7cyclictest0-21swapper/1811:05:4410
818899192183,7cyclictest0-21swapper/1811:05:4310
818899192183,7cyclictest0-21swapper/1811:05:4310
8174991921,182cyclictest8926-21cups-browsed11:35:1735
8174991921,182cyclictest8926-21cups-browsed11:35:1735
8174991921,182cyclictest8926-21cups-browsed11:35:1735
820799191155,17cyclictest0-21swapper/3310:37:2227
820799191155,17cyclictest0-21swapper/3310:37:2127
820799191155,17cyclictest0-21swapper/3310:37:2127
817499191109,78cyclictest3544-21CPU35
817499191109,78cyclictest3544-21CPU35
821099189178,3cyclictest0-21swapper/3608:20:2830
821099189178,3cyclictest0-21swapper/3608:20:2830
8205991881,184cyclictest0-21swapper/3211:00:0126
8205991881,184cyclictest0-21swapper/3211:00:0126
8174991881,79cyclictest0-21swapper/510:00:1735
8174991881,79cyclictest0-21swapper/510:00:1735
817499188119,66cyclictest0-21swapper/510:55:2435
817499188119,66cyclictest0-21swapper/510:55:2435
818199187173,13cyclictest0-21swapper/1210:13:284
818199187173,13cyclictest0-21swapper/1210:13:284
818199187173,13cyclictest0-21swapper/1210:13:274
8174991871,150cyclictest0-21swapper/510:19:1535
8174991871,150cyclictest0-21swapper/510:19:1535
8174991871,150cyclictest0-21swapper/510:19:1535
821099186182,2cyclictest0-21swapper/3611:36:2430
821099186182,2cyclictest0-21swapper/3611:36:2430
821099186182,2cyclictest0-21swapper/3611:36:2430
820999186160,21cyclictest37351-21CPU29
820999186160,21cyclictest37351-21CPU29
820999186160,21cyclictest37351-21CPU29
8174991861,177cyclictest0-21swapper/511:10:1635
8174991861,177cyclictest0-21swapper/511:10:1635
8174991860,177cyclictest17484-21nfsd12:20:1835
8174991860,177cyclictest17484-21nfsd12:20:1735
821199185170,13cyclictest0-21swapper/3709:33:2631
821199185170,13cyclictest0-21swapper/3709:33:2631
820999184174,8cyclictest0-21swapper/3511:21:4429
820999184174,8cyclictest0-21swapper/3511:21:4329
820999184174,8cyclictest0-21swapper/3511:21:4329
8208991845,110cyclictest0-21swapper/3410:40:1528
8208991845,110cyclictest0-21swapper/3410:40:1428
8208991845,110cyclictest0-21swapper/3410:40:1428
817499183154,27cyclictest0-21swapper/512:25:3835
817499183154,27cyclictest0-21swapper/512:25:3735
8174991831,179cyclictest0-21swapper/511:45:1235
8174991831,179cyclictest0-21swapper/511:45:1235
8174991831,179cyclictest0-21swapper/511:45:1135
820799182160,9cyclictest171rcu_preempt08:45:3127
820799182160,9cyclictest171rcu_preempt08:45:3127
818899182172,6cyclictest0-21swapper/1810:45:2310
818899182172,6cyclictest0-21swapper/1810:45:2310
818899182172,6cyclictest0-21swapper/1810:45:2310
8205991811,99cyclictest2461-21CPU26
8205991811,99cyclictest2461-21CPU26
818899181171,7cyclictest0-21swapper/1811:40:1710
818899181171,7cyclictest0-21swapper/1811:40:1710
8174991811,142cyclictest0-21swapper/510:45:1935
8174991811,142cyclictest0-21swapper/510:45:1935
8174991811,142cyclictest0-21swapper/510:45:1935
817099181178,2cyclictest0-21swapper/108:30:141
821199180176,2cyclictest0-21swapper/3710:10:5031
821199180176,2cyclictest0-21swapper/3710:10:4931
821199180176,2cyclictest0-21swapper/3710:10:4931
820599180129,42cyclictest0-21swapper/3209:10:1826
820599180129,42cyclictest0-21swapper/3209:10:1726
818799180120,55cyclictest3609-21CPU9
818799180120,55cyclictest3609-21CPU9
818799180120,55cyclictest3609-21CPU9
818199180139,39cyclictest0-21swapper/1211:20:224
818199180139,39cyclictest0-21swapper/1211:20:214
818199180139,39cyclictest0-21swapper/1211:20:214
817999180163,7cyclictest0-21swapper/1010:22:482
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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