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2026-06-21 - 08:20
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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 Sun Jun 21, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491670,6ptp4l0-21swapper/020:05:210
134491670,5ptp4l0-21swapper/322:35:113
280602660,3sleep30-21swapper/323:25:183
235922640,5sleep10-21swapper/122:05:211
134491640,18ptp4l0-21swapper/023:35:000
134491600,3ptp4l0-21swapper/023:05:160
134491590,4ptp4l0-21swapper/322:34:493
134491590,3ptp4l0-21swapper/122:10:271
134491580,4ptp4l0-21swapper/300:05:243
134491580,3ptp4l0-21swapper/220:10:202
134491570,3ptp4l0-21swapper/222:32:432
134491570,3ptp4l0-21swapper/120:40:351
134491560,5ptp4l28891-21taskset19:59:290
134491550,4ptp4l0-21swapper/219:15:012
134491550,4ptp4l0-21swapper/219:15:012
134491550,4ptp4l0-21swapper/020:21:070
134491550,3ptp4l0-21swapper/322:50:153
134491550,3ptp4l0-21swapper/223:15:252
134491540,5ptp4l0-21swapper/220:55:402
134491540,4ptp4l0-21swapper/200:30:582
134491540,4ptp4l0-21swapper/120:45:121
134491540,3ptp4l0-21swapper/220:35:312
134491530,4ptp4l0-21swapper/222:10:402
134491530,3ptp4l0-21swapper/023:20:180
134491530,3ptp4l0-21swapper/023:20:180
134491520,4ptp4l0-21swapper/223:25:102
134491520,4ptp4l0-21swapper/022:18:360
134491520,3ptp4l0-21swapper/322:21:083
134491520,3ptp4l0-21swapper/120:18:121
134491510,9ptp4l5213-21users19:05:290
134491510,4ptp4l0-21swapper/319:11:093
134491510,4ptp4l0-21swapper/300:27:233
134491510,4ptp4l0-21swapper/300:19:023
134491510,4ptp4l0-21swapper/123:36:351
134491510,4ptp4l0-21swapper/019:32:030
134491510,4ptp4l0-21swapper/000:39:410
134491510,4ptp4l0-21swapper/000:32:210
134491510,3ptp4l0-21swapper/120:23:091
134491510,3ptp4l0-21swapper/119:57:271
134491510,11ptp4l0-21swapper/121:43:301
5877995027,15cyclictest33-21ksoftirqd/219:35:202
5875995034,7cyclictest9-21ksoftirqd/000:00:000
134491500,4ptp4l0-21swapper/323:30:163
134491500,4ptp4l0-21swapper/319:27:143
134491500,4ptp4l0-21swapper/122:46:261
134491500,4ptp4l0-21swapper/023:47:380
134491500,4ptp4l0-21swapper/022:02:190
134491500,4ptp4l0-21swapper/020:00:110
134491500,4ptp4l0-21swapper/020:00:110
134491500,4ptp4l0-21swapper/019:54:360
134491500,3ptp4l0-21swapper/322:55:193
134491500,3ptp4l0-21swapper/319:42:033
134491500,3ptp4l0-21swapper/100:23:021
134491500,3ptp4l0-21swapper/100:23:021
134491500,3ptp4l0-21swapper/022:48:200
134491500,13ptp4l5254-21taskset19:05:511
134491490,4ptp4l0-21swapper/320:46:543
134491490,4ptp4l0-21swapper/220:02:002
134491490,4ptp4l0-21swapper/220:02:002
134491490,4ptp4l0-21swapper/219:34:422
134491490,4ptp4l0-21swapper/123:18:591
134491490,4ptp4l0-21swapper/120:08:141
134491490,4ptp4l0-21swapper/021:30:470
134491490,3ptp4l0-21swapper/219:56:032
134491490,3ptp4l0-21swapper/121:55:581
134491490,3ptp4l0-21swapper/121:19:301
134491490,3ptp4l0-21swapper/119:45:411
134491490,12ptp4l0-21swapper/120:13:101
134491490,11ptp4l0-21swapper/222:23:452
134491490,10ptp4l0-21swapper/323:01:373
134491480,4ptp4l0-21swapper/319:47:103
134491480,4ptp4l0-21swapper/319:23:353
134491480,4ptp4l0-21swapper/223:37:482
134491480,4ptp4l0-21swapper/123:04:101
134491480,4ptp4l0-21swapper/122:57:521
134491480,4ptp4l0-21swapper/121:52:111
134491480,4ptp4l0-21swapper/121:46:081
134491480,4ptp4l0-21swapper/120:57:541
134491480,4ptp4l0-21swapper/119:21:071
134491480,4ptp4l0-21swapper/022:56:360
134491480,3ptp4l0-21swapper/319:55:453
134491480,3ptp4l0-21swapper/221:06:422
5877994731,7cyclictest33-21ksoftirqd/222:02:042
5876994712,3cyclictest25-21ksoftirqd/119:54:591
5875994731,8cyclictest9-21ksoftirqd/020:55:010
5875994731,8cyclictest9-21ksoftirqd/020:55:000
134491470,4ptp4l0-21swapper/323:13:173
134491470,4ptp4l0-21swapper/320:40:283
134491470,4ptp4l0-21swapper/319:17:313
134491470,4ptp4l0-21swapper/319:17:303
134491470,4ptp4l0-21swapper/200:25:422
134491470,4ptp4l0-21swapper/121:35:371
134491470,4ptp4l0-21swapper/021:58:360
134491470,4ptp4l0-21swapper/020:40:010
134491470,4ptp4l0-21swapper/019:19:270
134491470,4ptp4l0-21swapper/019:19:270
134491470,3ptp4l587699cyclictest20:28:431
134491470,3ptp4l0-21swapper/322:43:583
134491470,3ptp4l0-21swapper/322:19:583
134491470,3ptp4l0-21swapper/123:27:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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