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2026-08-16 - 11:24
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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 Aug 16, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
265682710,5sleep30-21swapper/319:35:213
1407299673,61cyclictest0-21swapper/200:05:292
14071996632,7cyclictest25-21ksoftirqd/123:20:221
1407299654,59cyclictest0-21swapper/220:40:292
1407299635,56cyclictest0-21swapper/221:40:092
14071996329,4cyclictest25-21ksoftirqd/122:35:201
14071996231,7cyclictest25-21ksoftirqd/122:30:251
14071996221,7cyclictest25-21ksoftirqd/119:50:251
14071996221,7cyclictest25-21ksoftirqd/119:50:251
14071996130,8cyclictest25-21ksoftirqd/122:25:251
14071996130,8cyclictest25-21ksoftirqd/122:10:141
134491610,4ptp4l0-21swapper/019:17:380
14071996032,8cyclictest25-21ksoftirqd/122:40:171
14071996026,7cyclictest25-21ksoftirqd/100:10:181
14071996026,3cyclictest25-21ksoftirqd/121:50:281
134491600,4ptp4l0-21swapper/119:10:171
134491600,4ptp4l0-21swapper/119:10:171
14071995929,8cyclictest25-21ksoftirqd/120:10:001
14071995926,8cyclictest25-21ksoftirqd/120:35:001
14071995921,3cyclictest25-21ksoftirqd/122:15:231
134491590,4ptp4l0-21swapper/223:50:222
14071995823,4cyclictest25-21ksoftirqd/100:05:311
14071995821,8cyclictest25-21ksoftirqd/123:10:111
14071995820,4cyclictest25-21ksoftirqd/122:20:171
14071995820,4cyclictest25-21ksoftirqd/100:20:171
134491580,4ptp4l0-21swapper/000:17:360
134491580,4ptp4l0-21swapper/000:17:360
134491580,3ptp4l0-21swapper/121:35:211
276802570,6sleep10-21swapper/123:05:291
1407199575,6cyclictest25-21ksoftirqd/123:30:001
14071995728,6cyclictest25-21ksoftirqd/100:25:181
14071995719,4cyclictest25-21ksoftirqd/119:30:291
134491570,7ptp4l0-21swapper/119:05:511
134491570,3ptp4l0-21swapper/219:47:222
134491570,3ptp4l0-21swapper/119:37:061
14071995626,9cyclictest25-21ksoftirqd/120:40:221
14071995626,5cyclictest25-21ksoftirqd/100:15:211
14071995626,5cyclictest25-21ksoftirqd/100:15:211
14071995625,6cyclictest25-21ksoftirqd/121:25:271
14071995624,7cyclictest25-21ksoftirqd/119:25:181
14071995624,3cyclictest25-21ksoftirqd/123:55:161
134491560,5ptp4l0-21swapper/121:30:141
14071995518,4cyclictest25-21ksoftirqd/121:20:401
134491550,3ptp4l0-21swapper/022:15:260
1407199546,3cyclictest25-21ksoftirqd/120:10:181
14071995422,8cyclictest25-21ksoftirqd/119:40:261
134491540,3ptp4l0-21swapper/021:22:000
1407199536,9cyclictest25-21ksoftirqd/123:50:141
1407199535,7cyclictest25-21ksoftirqd/100:35:001
1407199532,7cyclictest25-21ksoftirqd/121:40:271
14071995326,7cyclictest25-21ksoftirqd/122:45:161
134491530,3ptp4l0-21swapper/120:45:211
134491530,20ptp4l9-21ksoftirqd/021:59:100
65042520,4sleep10-21swapper/123:30:251
1407199524,9cyclictest25-21ksoftirqd/123:15:301
134491520,3ptp4l0-21swapper/020:29:300
1407199512,8cyclictest25-21ksoftirqd/100:40:011
14071995119,8cyclictest25-21ksoftirqd/120:00:271
134491510,4ptp4l0-21swapper/321:26:083
134491510,12ptp4l0-21swapper/319:20:473
1407199505,7cyclictest25-21ksoftirqd/123:00:161
1407199504,6cyclictest25-21ksoftirqd/123:40:001
1407199503,2cyclictest25-21ksoftirqd/120:40:001
1407199503,10cyclictest25-21ksoftirqd/121:05:151
14071995019,8cyclictest25-21ksoftirqd/120:25:001
1407199501,7cyclictest25-21ksoftirqd/119:45:151
14071995017,8cyclictest25-21ksoftirqd/121:10:251
1407199500,9cyclictest25-21ksoftirqd/122:50:011
1407199495,7cyclictest25-21ksoftirqd/120:55:191
1407199490,9cyclictest25-21ksoftirqd/122:00:181
134491490,3ptp4l0-21swapper/121:01:531
1407199484,6cyclictest25-21ksoftirqd/121:55:261
1407199481,5cyclictest25-21ksoftirqd/100:00:011
134491480,3ptp4l0-21swapper/122:06:361
1407199473,3cyclictest25-21ksoftirqd/121:20:011
14071994732,8cyclictest25-21ksoftirqd/119:55:151
1407199472,9cyclictest25-21ksoftirqd/119:20:211
1407199472,8cyclictest25-21ksoftirqd/120:20:261
14071994723,9cyclictest25-21ksoftirqd/119:15:281
134491470,2ptp4l0-21swapper/320:41:223
134491470,12ptp4l0-21swapper/000:28:560
1407199462,7cyclictest25-21ksoftirqd/122:55:301
1407199462,7cyclictest0-21swapper/123:45:151
1407199461,3cyclictest121rcu_preempt23:44:121
1407199460,6cyclictest25-21ksoftirqd/120:15:031
134491460,3ptp4l0-21swapper/121:46:121
134491460,27ptp4l9-21ksoftirqd/022:37:160
134491450,3ptp4l101ktimersoftd/021:05:150
134491450,11ptp4l0-21swapper/019:31:090
134491440,9ptp4l0-21swapper/221:47:392
134491440,7ptp4l0-21swapper/019:50:560
134491440,7ptp4l0-21swapper/019:50:550
134491440,5ptp4l0-21swapper/319:10:283
134491440,5ptp4l0-21swapper/319:10:283
134491440,4ptp4l0-21swapper/021:39:220
134491440,3ptp4l1407399cyclictest23:50:543
134491440,2ptp4l0-21swapper/022:09:480
134491440,11ptp4l0-21swapper/020:21:460
134491430,9ptp4l0-21swapper/223:49:172
134491430,9ptp4l0-21swapper/222:05:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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