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2026-04-21 - 22:40
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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 Apr 21, 2026 13:02:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1279599203190,11cyclictest0-21swapper/3811:39:0432
1279599203190,11cyclictest0-21swapper/3811:39:0432
1278299198135,47cyclictest0-21swapper/2809:40:2621
1278299198135,47cyclictest0-21swapper/2809:40:2621
1278299198135,47cyclictest0-21swapper/2809:40:2621
1278999196190,3cyclictest3543-21CPU26
1278999196190,3cyclictest3543-21CPU26
1278999196190,3cyclictest3543-21CPU26
1277499192155,35cyclictest0-21swapper/2111:04:3114
1277499192155,35cyclictest0-21swapper/2111:04:3114
1277499192155,35cyclictest0-21swapper/2111:04:3114
1275099190186,2cyclictest0-21swapper/009:32:440
1275099190186,2cyclictest0-21swapper/009:32:430
1275099190186,2cyclictest0-21swapper/009:32:430
1278299189140,18cyclictest0-21swapper/2810:37:1721
1278299189140,18cyclictest0-21swapper/2810:37:1721
1277899189181,5cyclictest0-21swapper/2410:00:2217
1277899189181,5cyclictest0-21swapper/2410:00:2217
1277099189181,6cyclictest0-21swapper/1712:15:029
1277099189181,6cyclictest0-21swapper/1712:15:019
1276499189152,33cyclictest0-21swapper/1210:03:074
1276499189152,33cyclictest0-21swapper/1210:03:074
1275299187166,10cyclictest0-21swapper/212:19:0912
1275299187166,10cyclictest0-21swapper/212:19:0812
1275299187142,15cyclictest171rcu_preempt10:10:4412
1275299187142,15cyclictest171rcu_preempt10:10:4412
1275299185174,9cyclictest0-21swapper/212:22:1412
1275299185174,9cyclictest0-21swapper/212:22:1312
1275299185174,9cyclictest0-21swapper/212:22:1312
1279399184165,11cyclictest2454-21CPU30
1279399184165,11cyclictest2454-21CPU30
1277199184170,12cyclictest0-21swapper/1809:57:0910
1277199184170,12cyclictest0-21swapper/1809:57:0910
12757991845,79cyclictest0-21swapper/611:55:2036
12757991845,79cyclictest0-21swapper/611:55:2036
1275299183139,23cyclictest38105-21git11:34:4112
1275299183139,23cyclictest38105-21git11:34:4112
1275299182117,48cyclictest2456-21CPU12
1275299182117,48cyclictest2456-21CPU12
1278299180135,41cyclictest2462-21CPU21
1275299180143,17cyclictest0-21swapper/210:35:0912
1275299180143,17cyclictest0-21swapper/210:35:0912
1277199179169,8cyclictest0-21swapper/1811:14:3910
1277199179169,8cyclictest0-21swapper/1811:14:3910
1276699179175,2cyclictest0-21swapper/1310:54:205
1276699179175,2cyclictest0-21swapper/1310:54:205
12764991791,172cyclictest0-21swapper/1207:20:144
1275299179150,12cyclictest0-21swapper/212:07:4112
1275299179150,12cyclictest0-21swapper/212:07:4112
1275299179150,12cyclictest0-21swapper/212:07:4112
1275299179101,76cyclictest3546-21CPU12
1275299179101,76cyclictest3546-21CPU12
1275299179101,76cyclictest3546-21CPU12
1276699177162,12cyclictest0-21swapper/1309:03:375
1276699177162,12cyclictest0-21swapper/1309:03:375
1276699177104,69cyclictest3545-21CPU5
1276699177104,69cyclictest3545-21CPU5
1276699177104,69cyclictest3545-21CPU5
1276699176164,6cyclictest0-21swapper/1311:57:225
1276699176164,6cyclictest0-21swapper/1311:57:225
1275299176156,9cyclictest0-21swapper/210:24:5012
1275299176156,9cyclictest0-21swapper/210:24:4912
1275299176150,14cyclictest0-21swapper/211:13:3512
1275299176150,14cyclictest0-21swapper/211:13:3512
1277199175165,6cyclictest3542-21CPU10
1277199175165,6cyclictest3542-21CPU10
1277199175165,6cyclictest3542-21CPU10
1275699175164,7cyclictest2456-21CPU35
1275699175164,7cyclictest2456-21CPU35
1275699175151,18cyclictest0-21swapper/509:29:0635
1275699175151,18cyclictest0-21swapper/509:29:0635
1277099174164,8cyclictest0-21swapper/1709:14:019
1277099174164,8cyclictest0-21swapper/1709:14:009
1276699174125,14cyclictest0-21swapper/1310:17:085
1276699174125,14cyclictest0-21swapper/1310:17:085
1276699174125,14cyclictest0-21swapper/1310:17:075
12764991741,161cyclictest0-21swapper/1211:15:144
12764991741,161cyclictest0-21swapper/1211:15:144
1277399173165,6cyclictest0-21swapper/2011:07:2413
1277399173165,6cyclictest0-21swapper/2011:07:2313
1277399173165,6cyclictest0-21swapper/2011:07:2313
1278699172131,34cyclictest0-21swapper/3009:17:3024
1278699172131,34cyclictest0-21swapper/3009:17:3024
1278299172150,11cyclictest171rcu_preempt09:18:0921
1278299172150,11cyclictest171rcu_preempt09:18:0821
1277099172169,2cyclictest0-21swapper/1711:35:229
1277099172169,2cyclictest0-21swapper/1711:35:229
1276499172100,61cyclictest2466-21CPU4
1276499172100,61cyclictest2466-21CPU4
1276499172100,61cyclictest2466-21CPU4
1278299171147,9cyclictest171rcu_preempt08:51:5921
1278299171147,9cyclictest171rcu_preempt08:51:5921
1278299171138,11cyclictest171rcu_preempt11:46:2921
1278299171138,11cyclictest171rcu_preempt11:46:2821
1278299171135,15cyclictest0-21swapper/2808:15:5521
1277899171159,8cyclictest0-21swapper/2411:10:3317
1277899171159,8cyclictest0-21swapper/2411:10:3317
1278699170145,19cyclictest0-21swapper/3011:03:1624
1278699170145,19cyclictest0-21swapper/3011:03:1624
1278699170145,19cyclictest0-21swapper/3011:03:1624
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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