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2026-06-10 - 15:21
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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 Wed Jun 10, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1103621530,7sleep03066499cyclictest11:05:160
3066699747,21cyclictest3302-21date10:50:012
30665996824,4cyclictest25-21ksoftirqd/109:20:231
30665996628,10cyclictest25-21ksoftirqd/109:05:001
240052650,5sleep20-21swapper/208:05:132
3066699642,29cyclictest12489-21taskset12:16:272
30665996432,3cyclictest25-21ksoftirqd/111:25:001
30664996420,4cyclictest9-21ksoftirqd/012:20:010
30665996333,4cyclictest25-21ksoftirqd/110:10:191
30665996331,4cyclictest25-21ksoftirqd/109:05:121
3066699610,3cyclictest9684-21switchtime11:00:252
30665996131,4cyclictest25-21ksoftirqd/111:47:091
30665996127,4cyclictest25-21ksoftirqd/108:55:011
134491610,4ptp4l30083-21cat08:15:280
30665996025,9cyclictest25-21ksoftirqd/112:20:001
30665995928,4cyclictest25-21ksoftirqd/111:10:121
30665995919,9cyclictest25-21ksoftirqd/110:35:001
3066699582,18cyclictest0-21swapper/208:40:152
3066699580,4cyclictest32417-21sed08:20:272
30665995825,9cyclictest25-21ksoftirqd/110:50:011
30665995825,4cyclictest25-21ksoftirqd/110:30:181
30664995831,3cyclictest13660-21kworker/0:007:47:440
30664995829,4cyclictest14582-21kworker/0:010:17:240
30664995828,3cyclictest9-21ksoftirqd/007:40:150
30664995827,3cyclictest9-21ksoftirqd/007:10:250
134491580,4ptp4l0-21swapper/211:20:162
134491580,4ptp4l0-21swapper/012:32:210
30665995727,3cyclictest25-21ksoftirqd/112:10:271
30665995727,3cyclictest25-21ksoftirqd/108:12:171
30665995726,3cyclictest25-21ksoftirqd/107:40:141
30665995724,4cyclictest25-21ksoftirqd/109:15:231
30664995724,4cyclictest11525-21kworker/0:111:53:520
3066699560,4cyclictest14006-21ls07:40:262
30665995639,4cyclictest25-21ksoftirqd/109:50:001
30665995626,4cyclictest25-21ksoftirqd/107:10:251
30665995622,4cyclictest25-21ksoftirqd/110:09:261
30664995622,4cyclictest9-21ksoftirqd/011:20:000
134491560,4ptp4l0-21swapper/010:29:340
134491560,3ptp4l0-21swapper/010:55:130
30665995525,4cyclictest25-21ksoftirqd/108:35:191
30664995524,4cyclictest9-21ksoftirqd/008:10:180
30664995522,3cyclictest9-21ksoftirqd/008:35:000
134491550,4ptp4l0-21swapper/309:10:193
134491550,3ptp4l0-21swapper/012:04:340
134491550,3ptp4l0-21swapper/010:36:410
30665995438,3cyclictest25-21ksoftirqd/107:40:011
30665995424,4cyclictest25-21ksoftirqd/107:45:171
134491540,2ptp4l0-21swapper/007:33:150
3066699532,20cyclictest134691getstats11:17:192
30665995323,3cyclictest25-21ksoftirqd/109:40:331
30664995323,3cyclictest9-21ksoftirqd/010:20:180
30664995322,4cyclictest9-21ksoftirqd/008:45:170
134491530,5ptp4l0-21swapper/011:04:400
134491530,4ptp4l0-21swapper/310:21:263
134491530,4ptp4l0-21swapper/009:59:340
134491530,3ptp4l0-21swapper/112:05:251
134491530,3ptp4l0-21swapper/112:05:251
30664995225,3cyclictest14582-21kworker/0:010:52:220
30664995220,4cyclictest11525-21kworker/0:111:22:400
134491520,4ptp4l0-21swapper/311:38:573
134491520,3ptp4l0-21swapper/111:38:131
3066599517,6cyclictest25-21ksoftirqd/111:02:011
30665995133,4cyclictest25-21ksoftirqd/111:55:201
30664995124,3cyclictest9-21ksoftirqd/007:55:000
134491510,4ptp4l0-21swapper/109:37:001
134491510,4ptp4l0-21swapper/010:04:280
134491510,3ptp4l0-21swapper/011:35:350
3066699500,2cyclictest19327-21apt-get07:55:112
134491500,5ptp4l0-21swapper/008:25:080
134491500,11ptp4l30252-21sshd07:08:301
30665994928,6cyclictest25-21ksoftirqd/108:00:011
3066599492,3cyclictest25-21ksoftirqd/110:50:191
3066599491,3cyclictest25-21ksoftirqd/110:25:011
30664994921,3cyclictest9-21ksoftirqd/009:40:240
30664994917,3cyclictest9-21ksoftirqd/009:35:110
30664994915,3cyclictest9-21ksoftirqd/010:40:260
134491490,8ptp4l0-21swapper/011:28:130
134491490,4ptp4l0-21swapper/011:58:160
134491490,4ptp4l0-21swapper/011:40:490
134491490,4ptp4l0-21swapper/010:46:180
30664994836,3cyclictest9-21ksoftirqd/010:15:000
30664994820,3cyclictest9-21ksoftirqd/011:50:010
30664994818,4cyclictest9-21ksoftirqd/007:25:180
134491480,4ptp4l0-21swapper/309:54:323
134491480,4ptp4l0-21swapper/012:39:470
134491480,4ptp4l0-21swapper/012:39:460
31322470,1sleep33135-21grep07:20:143
30665994732,4cyclictest25-21ksoftirqd/107:30:011
30665994731,4cyclictest25-21ksoftirqd/111:35:001
30665994710,6cyclictest25-21ksoftirqd/111:25:171
30664994718,4cyclictest9-21ksoftirqd/012:20:120
30664994718,3cyclictest9-21ksoftirqd/012:10:180
30664994712,4cyclictest9-21ksoftirqd/009:05:160
134491470,4ptp4l0-21swapper/208:00:052
134491470,4ptp4l0-21swapper/112:36:011
134491470,4ptp4l0-21swapper/112:36:011
134491470,4ptp4l0-21swapper/108:42:281
134491470,4ptp4l0-21swapper/008:09:290
134491470,3ptp4l0-21swapper/008:05:000
134491470,12ptp4l32615-21switchtime09:30:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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