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2026-04-17 - 16:03
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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 Fri Apr 17, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1432321720,3sleep0101ktimersoftd/008:45:120
2283021610,4sleep0222199cyclictest09:00:290
134491650,5ptp4l22118-21sed12:30:150
141172630,5sleep00-21swapper/007:35:120
134491630,10ptp4l0-21swapper/011:52:240
134491600,3ptp4l0-21swapper/011:10:290
134491590,4ptp4l21390-21diskstats10:10:140
134491590,3ptp4l0-21swapper/109:25:441
134491590,3ptp4l0-21swapper/009:15:240
307402580,1sleep130743-21cut09:20:151
134491580,4ptp4l0-21swapper/211:14:012
134491580,4ptp4l0-21swapper/107:55:271
134491580,3ptp4l0-21swapper/211:40:152
134491570,4ptp4l0-21swapper/108:00:361
134491570,4ptp4l0-21swapper/007:42:030
134491570,3ptp4l0-21swapper/111:55:161
134491570,3ptp4l0-21swapper/010:25:220
134491570,3ptp4l0-21swapper/009:30:210
134491560,3ptp4l0-21swapper/108:50:231
134491560,3ptp4l0-21swapper/012:25:190
134491560,3ptp4l0-21swapper/010:00:250
134491560,3ptp4l0-21swapper/008:20:150
134491560,23ptp4l9-21ksoftirqd/007:11:560
222499548,45cyclictest0-21swapper/312:14:093
134491530,9ptp4l33-21ksoftirqd/208:20:272
134491530,3ptp4l0-21swapper/110:20:261
134491530,3ptp4l0-21swapper/011:55:440
134491530,12ptp4l796-21meminfo07:05:200
134491520,3ptp4l0-21swapper/111:13:571
134491520,18ptp4l9-21ksoftirqd/010:08:560
134491510,5ptp4l0-21swapper/010:52:550
134491510,4ptp4l0-21swapper/209:24:312
134491510,4ptp4l0-21swapper/207:35:592
134491510,4ptp4l0-21swapper/112:08:561
134491510,4ptp4l0-21swapper/011:06:020
134491510,4ptp4l0-21swapper/010:30:510
134491510,3ptp4l0-21swapper/110:50:221
134491510,13ptp4l0-21swapper/111:25:181
222499501,47cyclictest0-21swapper/310:20:093
2222995022,4cyclictest25-21ksoftirqd/109:04:061
134491500,4ptp4l0-21swapper/011:28:040
134491500,3ptp4l0-21swapper/109:08:431
134491500,3ptp4l0-21swapper/011:03:210
134491490,4ptp4l0-21swapper/208:54:242
134491490,4ptp4l0-21swapper/111:44:381
134491490,4ptp4l0-21swapper/111:36:531
134491490,4ptp4l0-21swapper/108:17:461
134491490,4ptp4l0-21swapper/011:40:400
134491490,4ptp4l0-21swapper/009:46:440
134491490,4ptp4l0-21swapper/009:36:570
134491490,4ptp4l0-21swapper/008:53:080
134491490,3ptp4l0-21swapper/011:48:260
134491480,4ptp4l0-21swapper/307:09:293
134491480,4ptp4l0-21swapper/110:55:321
134491480,4ptp4l0-21swapper/110:28:211
134491480,4ptp4l0-21swapper/109:38:521
134491480,4ptp4l0-21swapper/010:36:000
134491480,4ptp4l0-21swapper/010:17:530
134491480,4ptp4l0-21swapper/009:50:430
134491480,4ptp4l0-21swapper/009:11:170
134491480,3ptp4l0-21swapper/108:22:581
2222994710,8cyclictest25-21ksoftirqd/111:30:191
134491470,4ptp4l0-21swapper/110:38:471
134491470,4ptp4l0-21swapper/108:25:361
134491470,4ptp4l0-21swapper/012:22:520
134491470,4ptp4l0-21swapper/009:57:140
134491470,4ptp4l0-21swapper/008:40:040
134491470,4ptp4l0-21swapper/008:40:040
134491470,4ptp4l0-21swapper/008:26:530
134491470,4ptp4l0-21swapper/007:25:500
134491470,3ptp4l0-21swapper/110:14:071
134491470,3ptp4l0-21swapper/108:42:171
134491470,3ptp4l0-21swapper/108:42:171
134491470,3ptp4l0-21swapper/009:25:450
134491470,13ptp4l41-21ksoftirqd/307:10:193
134491460,5ptp4l0-21swapper/207:09:252
134491460,3ptp4l222499cyclictest12:24:073
134491460,3ptp4l0-21swapper/211:30:362
2222994517,3cyclictest25-21ksoftirqd/112:20:191
2222994516,4cyclictest25-21ksoftirqd/109:18:541
2222994514,3cyclictest25-21ksoftirqd/108:45:271
134491450,4ptp4l0-21swapper/111:20:141
134491450,3ptp4l23383-21cpu10:15:121
134491450,3ptp4l0-21swapper/112:02:311
134491450,3ptp4l0-21swapper/008:07:110
134491450,11ptp4l0-21swapper/110:42:381
222299449,8cyclictest25-21ksoftirqd/109:41:021
2222994419,6cyclictest25-21ksoftirqd/111:01:001
134491440,9ptp4l0-21swapper/207:10:382
134491440,5ptp4l0-21swapper/208:45:112
134491440,4ptp4l0-21swapper/307:33:343
134491440,4ptp4l0-21swapper/107:38:081
134491440,4ptp4l0-21swapper/011:22:200
134491440,3ptp4l0-21swapper/109:59:571
134491440,3ptp4l0-21swapper/009:40:070
134491440,3ptp4l0-21swapper/008:31:190
2223994337,3cyclictest33-21ksoftirqd/208:45:002
2223994337,3cyclictest33-21ksoftirqd/208:45:002
222299439,4cyclictest25-21ksoftirqd/108:35:211
2222994337,3cyclictest25-21ksoftirqd/108:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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