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2026-06-04 - 17:53
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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 rackdslot1.osadl.org (updated Thu Jun 04, 2026 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6484996332,4cyclictest41-21ksoftirqd/310:58:023
6484996332,4cyclictest41-21ksoftirqd/310:58:023
134491630,21ptp4l26406-21sed11:20:140
6484996229,7cyclictest41-21ksoftirqd/307:30:003
6484996229,4cyclictest41-21ksoftirqd/309:56:163
6484996229,4cyclictest41-21ksoftirqd/309:56:153
3151926229,8sleep233-21ksoftirqd/208:00:272
6484996132,4cyclictest41-21ksoftirqd/310:55:003
6484996129,4cyclictest41-21ksoftirqd/309:41:123
6484996027,8cyclictest41-21ksoftirqd/307:59:223
114342600,3sleep0111rcuc/011:55:240
6484995926,8cyclictest41-21ksoftirqd/311:40:233
6484995926,7cyclictest41-21ksoftirqd/308:00:263
6484995924,4cyclictest41-21ksoftirqd/307:46:203
134491590,4ptp4l31161-21meminfo09:10:201
134491590,4ptp4l0-21swapper/207:51:252
134491590,3ptp4l30140-21ntp_states12:35:250
6484995830,8cyclictest41-21ksoftirqd/311:15:213
6484995827,3cyclictest41-21ksoftirqd/309:21:343
6484995825,8cyclictest41-21ksoftirqd/311:45:293
134491580,4ptp4l0-21swapper/108:33:401
134491580,17ptp4l24767-21ls11:15:182
6484995728,4cyclictest41-21ksoftirqd/309:17:533
6484995725,8cyclictest41-21ksoftirqd/312:10:233
6484995725,8cyclictest41-21ksoftirqd/310:10:153
6484995725,4cyclictest41-21ksoftirqd/309:07:483
6484995725,3cyclictest41-21ksoftirqd/311:03:323
6484995725,3cyclictest41-21ksoftirqd/308:18:503
6484995724,3cyclictest41-21ksoftirqd/308:40:013
6484995722,8cyclictest41-21ksoftirqd/310:20:123
6484995722,5cyclictest41-21ksoftirqd/311:58:223
134491570,4ptp4l0-21swapper/009:56:480
134491570,4ptp4l0-21swapper/009:56:480
6484995626,4cyclictest41-21ksoftirqd/312:40:003
6484995626,4cyclictest41-21ksoftirqd/310:17:263
6484995625,7cyclictest41-21ksoftirqd/311:28:093
6484995624,7cyclictest41-21ksoftirqd/309:10:223
6484995622,4cyclictest41-21ksoftirqd/311:08:473
6484995622,4cyclictest41-21ksoftirqd/307:37:443
134491560,4ptp4l0-21swapper/111:40:141
6484995525,3cyclictest41-21ksoftirqd/310:39:413
6484995523,4cyclictest41-21ksoftirqd/310:32:373
6484995515,8cyclictest41-21ksoftirqd/308:24:403
6484995514,8cyclictest41-21ksoftirqd/308:41:493
134491550,5ptp4l18773-21seq11:03:021
134491550,4ptp4l0-21swapper/108:45:241
6484995425,3cyclictest41-21ksoftirqd/308:47:363
6484995424,8cyclictest41-21ksoftirqd/307:41:133
6484995424,6cyclictest41-21ksoftirqd/310:47:093
6484995424,3cyclictest41-21ksoftirqd/309:53:113
6484995422,5cyclictest41-21ksoftirqd/309:28:323
6484995419,4cyclictest41-21ksoftirqd/311:55:013
6484995418,4cyclictest41-21ksoftirqd/309:00:003
6484995418,4cyclictest41-21ksoftirqd/309:00:003
6484995412,8cyclictest41-21ksoftirqd/308:50:243
134491540,4ptp4l0-21swapper/212:35:332
134491540,4ptp4l0-21swapper/011:12:370
6484995325,7cyclictest41-21ksoftirqd/310:00:013
6484995320,3cyclictest41-21ksoftirqd/307:35:013
6484995319,6cyclictest41-21ksoftirqd/312:20:273
6484995314,7cyclictest41-21ksoftirqd/311:37:203
6482995324,8cyclictest25-21ksoftirqd/107:35:001
6482995314,10cyclictest25-21ksoftirqd/111:25:001
134491530,5ptp4l0-21swapper/212:11:222
134491530,4ptp4l0-21swapper/112:22:301
134491530,4ptp4l0-21swapper/110:05:011
6484995224,7cyclictest41-21ksoftirqd/308:35:013
6484995223,3cyclictest41-21ksoftirqd/307:22:243
6484995219,7cyclictest41-21ksoftirqd/308:10:143
6484995217,8cyclictest41-21ksoftirqd/307:20:003
6484995217,8cyclictest41-21ksoftirqd/307:20:003
6484995216,9cyclictest41-21ksoftirqd/312:25:223
6482995226,4cyclictest25-21ksoftirqd/108:14:591
134491520,4ptp4l3601-21ntp_states09:20:211
134491520,4ptp4l0-21swapper/010:45:440
6484995132,8cyclictest41-21ksoftirqd/309:31:503
6482995119,8cyclictest25-21ksoftirqd/111:25:211
134491510,4ptp4l0-21swapper/108:40:401
134491510,4ptp4l0-21swapper/107:11:071
134491510,3ptp4l0-21swapper/212:23:562
134491510,3ptp4l0-21swapper/110:34:451
648499509,8cyclictest41-21ksoftirqd/311:22:533
6484995022,3cyclictest41-21ksoftirqd/310:25:243
6484995022,3cyclictest41-21ksoftirqd/310:25:243
6484995019,3cyclictest41-21ksoftirqd/309:00:163
6484995013,7cyclictest41-21ksoftirqd/309:45:483
134491500,4ptp4l0-21swapper/010:24:070
134491500,4ptp4l0-21swapper/007:51:580
134491500,3ptp4l0-21swapper/110:40:181
6484994913,8cyclictest41-21ksoftirqd/307:50:203
6484994911,8cyclictest41-21ksoftirqd/309:39:343
134491490,5ptp4l0-21swapper/312:00:523
134491490,4ptp4l0-21swapper/312:18:513
134491490,4ptp4l0-21swapper/307:05:143
134491490,4ptp4l0-21swapper/207:42:572
134491490,4ptp4l0-21swapper/012:01:310
134491490,4ptp4l0-21swapper/009:32:240
134491490,4ptp4l0-21swapper/008:29:570
134491490,4ptp4l0-21swapper/008:29:570
134491490,4ptp4l0-21swapper/007:25:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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