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2026-06-11 - 07:32
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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 11, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30692996328,8cyclictest25-21ksoftirqd/119:30:261
247212630,6sleep03069199cyclictest22:25:140
134491620,19ptp4l0-21swapper/000:20:130
30692995927,7cyclictest25-21ksoftirqd/119:50:231
134491590,3ptp4l8739-21ntp_states19:30:213
30692995831,7cyclictest25-21ksoftirqd/120:23:111
30692995830,4cyclictest25-21ksoftirqd/121:00:201
30692995828,7cyclictest25-21ksoftirqd/121:15:001
30692995826,3cyclictest25-21ksoftirqd/123:44:381
30692995826,3cyclictest25-21ksoftirqd/119:40:281
134491580,4ptp4l0-21swapper/022:45:200
134491580,4ptp4l0-21swapper/000:35:230
134491580,16ptp4l0-21swapper/023:45:170
30692995731,6cyclictest25-21ksoftirqd/122:35:191
30692995727,7cyclictest25-21ksoftirqd/120:30:251
30692995727,6cyclictest25-21ksoftirqd/100:25:221
30692995727,3cyclictest25-21ksoftirqd/122:41:321
30692995726,10cyclictest25-21ksoftirqd/120:00:171
30692995725,4cyclictest25-21ksoftirqd/120:49:471
30692995723,3cyclictest25-21ksoftirqd/120:51:071
30692995720,7cyclictest25-21ksoftirqd/121:30:221
30692995720,7cyclictest25-21ksoftirqd/121:30:221
134491570,4ptp4l0-21swapper/100:00:171
134491570,3ptp4l0-21swapper/320:34:363
134491570,3ptp4l0-21swapper/319:20:173
30692995629,7cyclictest25-21ksoftirqd/122:46:411
30692995627,7cyclictest25-21ksoftirqd/121:17:421
30692995624,4cyclictest25-21ksoftirqd/123:09:591
30692995624,3cyclictest25-21ksoftirqd/121:35:111
30692995623,8cyclictest25-21ksoftirqd/119:45:251
30692995622,8cyclictest25-21ksoftirqd/120:40:151
30692995621,4cyclictest25-21ksoftirqd/123:45:191
30692995618,9cyclictest25-21ksoftirqd/100:20:181
134491560,5ptp4l0-21swapper/219:07:382
134491560,5ptp4l0-21swapper/219:07:382
134491560,3ptp4l0-21swapper/019:15:570
30692995523,3cyclictest25-21ksoftirqd/123:55:281
30692995522,3cyclictest25-21ksoftirqd/123:35:141
30692995515,8cyclictest25-21ksoftirqd/120:35:231
134491550,4ptp4l0-21swapper/321:53:263
30692995426,4cyclictest25-21ksoftirqd/122:30:161
30692995424,4cyclictest25-21ksoftirqd/122:03:221
30692995424,4cyclictest25-21ksoftirqd/119:55:251
134491540,4ptp4l0-21swapper/119:08:501
134491540,4ptp4l0-21swapper/119:08:501
134491540,4ptp4l0-21swapper/023:55:130
134491540,3ptp4l9057-21ntp_states21:50:240
30692995324,3cyclictest25-21ksoftirqd/121:50:201
30692995322,6cyclictest25-21ksoftirqd/122:30:001
30692995322,4cyclictest25-21ksoftirqd/122:20:121
30692995321,7cyclictest25-21ksoftirqd/119:35:121
30692995321,7cyclictest25-21ksoftirqd/119:35:121
30692995320,4cyclictest25-21ksoftirqd/123:35:011
30692995319,6cyclictest25-21ksoftirqd/122:50:271
30692995315,5cyclictest25-21ksoftirqd/123:25:271
134491530,4ptp4l0-21swapper/322:10:383
134491530,4ptp4l0-21swapper/022:20:140
134491530,4ptp4l0-21swapper/021:21:470
134491530,18ptp4l9-21ksoftirqd/000:10:180
3069299524,3cyclictest25-21ksoftirqd/119:20:201
30692995227,6cyclictest25-21ksoftirqd/123:20:211
30692995224,6cyclictest25-21ksoftirqd/100:10:001
30692995219,7cyclictest25-21ksoftirqd/123:50:171
30692995219,7cyclictest25-21ksoftirqd/122:55:271
30692995217,7cyclictest25-21ksoftirqd/119:15:211
30692995213,10cyclictest25-21ksoftirqd/121:25:241
134491520,5ptp4l0-21swapper/222:06:062
134491520,4ptp4l0-21swapper/023:50:040
134491520,4ptp4l0-21swapper/022:08:420
134491520,4ptp4l0-21swapper/020:33:140
134491520,3ptp4l32523-21taskset19:11:540
3069299515,6cyclictest25-21ksoftirqd/119:30:001
30692995121,8cyclictest25-21ksoftirqd/123:10:231
30692995118,6cyclictest25-21ksoftirqd/122:05:251
134491510,4ptp4l0-21swapper/021:00:360
134491510,4ptp4l0-21swapper/019:47:370
134491510,4ptp4l0-21swapper/019:20:040
134491510,3ptp4l0-21swapper/322:25:243
30692995022,3cyclictest25-21ksoftirqd/100:39:331
30692995016,7cyclictest25-21ksoftirqd/122:20:011
134491500,4ptp4l0-21swapper/321:14:283
134491500,4ptp4l0-21swapper/020:47:020
134491500,4ptp4l0-21swapper/019:55:030
134491500,3ptp4l0-21swapper/219:51:152
134491500,3ptp4l0-21swapper/100:19:311
134491500,3ptp4l0-21swapper/021:30:210
134491500,3ptp4l0-21swapper/021:30:210
3069299496,6cyclictest131rcu_sched00:10:251
30692994927,3cyclictest25-21ksoftirqd/121:59:041
30692994921,3cyclictest25-21ksoftirqd/100:30:151
30692994918,8cyclictest25-21ksoftirqd/121:40:271
30692994914,6cyclictest25-21ksoftirqd/121:20:171
3069299491,3cyclictest121rcu_preempt20:08:101
134491490,4ptp4l0-21swapper/320:21:353
134491490,4ptp4l0-21swapper/319:48:453
134491490,4ptp4l0-21swapper/222:12:352
134491490,3ptp4l0-21swapper/221:39:272
134491490,3ptp4l0-21swapper/021:25:290
134491490,16ptp4l0-21swapper/020:02:190
134491490,11ptp4l0-21swapper/000:15:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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