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2025-12-16 - 11:19
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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 Tue Dec 16, 2025 01:00:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1369199211184,9cyclictest0-21swapper/523:01:4135
1369199211184,9cyclictest0-21swapper/523:01:4135
1369199211184,9cyclictest0-21swapper/523:01:4135
1369199200169,23cyclictest0-21swapper/500:38:2735
1369199200169,23cyclictest0-21swapper/500:38:2735
1369199200169,23cyclictest0-21swapper/500:38:2735
1369199198179,10cyclictest0-21swapper/521:45:2635
1369199198179,10cyclictest0-21swapper/521:45:2635
1368999195190,4cyclictest0-21swapper/419:22:4734
1372899190184,4cyclictest0-21swapper/3419:30:0028
1372899190184,4cyclictest0-21swapper/3419:30:0028
1369199189182,4cyclictest0-21swapper/522:56:2735
1369199189182,4cyclictest0-21swapper/522:56:2735
1369199189182,4cyclictest0-21swapper/522:56:2735
137209918899,78cyclictest0-21swapper/2822:54:0921
137209918899,78cyclictest0-21swapper/2822:54:0921
137209918899,78cyclictest0-21swapper/2822:54:0921
1369199188179,6cyclictest0-21swapper/522:50:2835
1369199188179,6cyclictest0-21swapper/522:50:2735
1369199188179,6cyclictest0-21swapper/522:50:2735
1369199188175,11cyclictest0-21swapper/521:55:5235
1369199188175,11cyclictest0-21swapper/521:55:5235
1369199188148,34cyclictest0-21swapper/521:32:0335
1369199188148,34cyclictest0-21swapper/521:32:0335
1369199188148,34cyclictest0-21swapper/521:32:0335
1368999187181,4cyclictest0-21swapper/422:11:5134
1368999187181,4cyclictest0-21swapper/422:11:5134
1368999187181,4cyclictest0-21swapper/422:11:5134
1369199186163,21cyclictest0-21swapper/520:25:0335
1368999186161,9cyclictest0-21swapper/400:16:0634
1368999186161,9cyclictest0-21swapper/400:16:0634
1369199185176,5cyclictest1392-21gdbus22:40:1535
1369199185176,5cyclictest1392-21gdbus22:40:1535
1368999185175,6cyclictest0-21swapper/422:22:2234
1368999185175,6cyclictest0-21swapper/422:22:2234
1368999184174,7cyclictest0-21swapper/419:18:5934
1368999184174,7cyclictest0-21swapper/419:18:5934
1369199183174,5cyclictest0-21swapper/521:22:3535
1369199183174,5cyclictest0-21swapper/521:22:3435
1369199182174,5cyclictest0-21swapper/522:34:4035
1369199182174,5cyclictest0-21swapper/522:34:4035
1369199182166,14cyclictest0-21swapper/523:59:4235
1369199182166,14cyclictest0-21swapper/523:59:4235
1369199182166,14cyclictest0-21swapper/523:59:4235
1371399181129,27cyclictest0-21swapper/2222:46:1915
1371399181129,27cyclictest0-21swapper/2222:46:1915
1369199181174,5cyclictest0-21swapper/521:38:2535
1369199181174,5cyclictest0-21swapper/521:38:2535
1369199181166,6cyclictest0-21swapper/521:12:5235
1369199181166,6cyclictest0-21swapper/521:12:5235
1371399180160,9cyclictest171rcu_preempt19:20:4515
136919918097,68cyclictest37268-21CPU35
136919918097,68cyclictest37268-21CPU35
136919918097,68cyclictest37268-21CPU35
1369199180170,7cyclictest0-21swapper/522:15:0935
1369199180170,7cyclictest0-21swapper/522:15:0935
1368999180174,4cyclictest0-21swapper/419:25:1834
1368999180174,4cyclictest0-21swapper/419:25:1834
13720991791,87cyclictest0-21swapper/2822:20:1721
13720991791,87cyclictest0-21swapper/2822:20:1721
1368999179124,25cyclictest0-21swapper/421:22:1634
1368999179124,25cyclictest0-21swapper/421:22:1534
1368599179153,23cyclictest0-21swapper/000:37:060
1368599179153,23cyclictest0-21swapper/000:37:050
1368599179153,23cyclictest0-21swapper/000:37:050
1369199178171,5cyclictest0-21swapper/522:27:4735
1369199178171,5cyclictest0-21swapper/522:27:4735
1369199178171,5cyclictest0-21swapper/522:27:4735
1369199178170,4cyclictest3547-21CPU35
1369199178170,4cyclictest3547-21CPU35
1368999178159,10cyclictest171rcu_preempt19:10:0934
1368999178159,10cyclictest171rcu_preempt19:10:0934
1371399177104,39cyclictest0-21swapper/2222:41:5115
1371399177104,39cyclictest0-21swapper/2222:41:5115
1369199177170,5cyclictest15415-21systemd23:33:0135
1369199177170,5cyclictest15415-21systemd23:33:0135
1369199177170,5cyclictest15415-21systemd23:33:0135
1369199177168,5cyclictest0-21swapper/523:40:3035
1369199177168,5cyclictest0-21swapper/523:40:3035
1369199177151,18cyclictest0-21swapper/522:21:0135
1369199177151,18cyclictest0-21swapper/522:21:0135
1372799176143,28cyclictest0-21swapper/3323:49:0327
1372799176143,28cyclictest0-21swapper/3323:49:0227
137079917691,73cyclictest3544-21CPU10
137079917691,73cyclictest3544-21CPU10
137079917691,73cyclictest3544-21CPU10
1369199176170,4cyclictest0-21swapper/521:50:5235
1369199176170,4cyclictest0-21swapper/521:50:5235
1372999175165,9cyclictest0-21swapper/3522:46:4829
1372999175165,9cyclictest0-21swapper/3522:46:4829
1372099175118,51cyclictest0-21swapper/2821:57:5921
1372099175118,51cyclictest0-21swapper/2821:57:5921
1368999175122,27cyclictest3547-21CPU34
1368999175122,27cyclictest3547-21CPU34
13720991742,84cyclictest37270-21CPU21
13720991742,84cyclictest37270-21CPU21
1371399174120,26cyclictest0-21swapper/2221:46:0815
1371399174120,26cyclictest0-21swapper/2221:46:0715
1370599174138,24cyclictest0-21swapper/1621:21:128
1370599174138,24cyclictest0-21swapper/1621:21:128
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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