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2026-07-08 - 08:32
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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 Wed Jul 08, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2721521590,6sleep3571599cyclictest23:25:123
571599802,32cyclictest0-21swapper/319:10:213
274242670,7sleep1571399cyclictest22:15:181
5712996527,4cyclictest9-21ksoftirqd/022:45:240
5715996433,7cyclictest41-21ksoftirqd/322:10:003
5712996426,3cyclictest9-21ksoftirqd/020:20:010
134491640,4ptp4l0-21swapper/219:08:032
5715996324,7cyclictest41-21ksoftirqd/319:30:143
5712996330,4cyclictest9-21ksoftirqd/020:48:000
5712996330,4cyclictest9-21ksoftirqd/019:31:180
5715996229,7cyclictest41-21ksoftirqd/319:15:223
5712996232,4cyclictest9-21ksoftirqd/021:50:520
5712996229,4cyclictest9-21ksoftirqd/022:15:100
5715996130,4cyclictest41-21ksoftirqd/320:00:173
5712996130,4cyclictest9-21ksoftirqd/023:05:530
5712996129,5cyclictest9-21ksoftirqd/000:29:010
5712996128,6cyclictest9-21ksoftirqd/019:15:010
5712996127,6cyclictest9-21ksoftirqd/020:00:150
5712996127,4cyclictest9-21ksoftirqd/000:30:580
134491610,4ptp4l6949-21iostat23:50:191
5715996031,7cyclictest41-21ksoftirqd/300:11:333
5715996023,7cyclictest41-21ksoftirqd/323:05:263
5712996032,6cyclictest9-21ksoftirqd/021:35:160
5712996031,5cyclictest9-21ksoftirqd/019:40:040
5712996030,4cyclictest9-21ksoftirqd/023:45:080
5712996030,4cyclictest9-21ksoftirqd/000:13:290
5712996029,3cyclictest9-21ksoftirqd/021:40:320
5712996028,4cyclictest9-21ksoftirqd/022:20:470
5712996027,7cyclictest9-21ksoftirqd/023:33:210
5712996027,4cyclictest9-21ksoftirqd/020:10:500
5712996026,6cyclictest9-21ksoftirqd/023:40:260
5712996026,6cyclictest9-21ksoftirqd/023:40:260
5712996026,3cyclictest9-21ksoftirqd/022:58:430
5712996025,6cyclictest9-21ksoftirqd/020:50:120
5715995929,7cyclictest41-21ksoftirqd/321:35:003
5715995928,9cyclictest41-21ksoftirqd/320:55:143
5715995926,7cyclictest41-21ksoftirqd/323:45:263
5715995926,7cyclictest41-21ksoftirqd/319:45:273
5712995931,4cyclictest9-21ksoftirqd/020:30:010
5712995930,4cyclictest9-21ksoftirqd/023:58:530
5712995930,4cyclictest9-21ksoftirqd/023:27:550
5712995930,4cyclictest9-21ksoftirqd/019:56:340
5712995929,3cyclictest9-21ksoftirqd/023:53:300
5712995927,3cyclictest9-21ksoftirqd/022:13:250
5712995926,4cyclictest9-21ksoftirqd/019:54:040
5715995827,10cyclictest41-21ksoftirqd/323:30:103
5715995826,6cyclictest41-21ksoftirqd/300:25:293
5715995824,9cyclictest41-21ksoftirqd/320:50:013
5715995823,4cyclictest41-21ksoftirqd/322:20:273
5712995830,7cyclictest9-21ksoftirqd/019:16:360
5712995829,7cyclictest9-21ksoftirqd/020:40:190
5712995829,4cyclictest9-21ksoftirqd/019:48:150
5712995826,4cyclictest9-21ksoftirqd/020:39:500
5712995825,3cyclictest9-21ksoftirqd/000:18:380
5712995824,5cyclictest9-21ksoftirqd/021:55:200
5712995823,6cyclictest9-21ksoftirqd/022:30:000
134491580,4ptp4l0-21swapper/022:41:540
134491580,3ptp4l0-21swapper/221:22:262
5712995732,7cyclictest9-21ksoftirqd/021:48:220
5712995730,3cyclictest9-21ksoftirqd/019:29:060
5712995729,4cyclictest9-21ksoftirqd/021:20:150
134491570,3ptp4l0-21swapper/121:30:171
5712995630,7cyclictest9-21ksoftirqd/020:05:270
5712995623,6cyclictest9-21ksoftirqd/023:10:150
5712995623,6cyclictest9-21ksoftirqd/023:10:150
5712995620,6cyclictest9-21ksoftirqd/022:35:250
5712995619,6cyclictest9-21ksoftirqd/000:20:160
571599553,6cyclictest10797-21cut00:00:013
5715995527,9cyclictest41-21ksoftirqd/300:37:233
5715995524,7cyclictest41-21ksoftirqd/321:37:093
5712995530,7cyclictest9-21ksoftirqd/022:02:200
5712995529,6cyclictest9-21ksoftirqd/021:11:330
5712995524,4cyclictest9-21ksoftirqd/020:58:470
5712995523,5cyclictest9-21ksoftirqd/019:35:160
5712995521,6cyclictest9-21ksoftirqd/021:15:280
134491550,4ptp4l0-21swapper/123:06:211
5715995421,8cyclictest41-21ksoftirqd/322:35:253
5712995425,6cyclictest9-21ksoftirqd/020:31:270
5712995424,3cyclictest9-21ksoftirqd/021:30:190
5712995422,5cyclictest9-21ksoftirqd/000:35:190
571599533,8cyclictest41-21ksoftirqd/321:55:193
5715995321,8cyclictest41-21ksoftirqd/323:41:043
5715995321,8cyclictest41-21ksoftirqd/323:41:043
571299533,3cyclictest0-21swapper/000:10:000
5712995329,6cyclictest9-21ksoftirqd/022:07:430
5712995322,5cyclictest9-21ksoftirqd/021:00:140
5712995322,5cyclictest9-21ksoftirqd/021:00:140
5712995319,5cyclictest9-21ksoftirqd/023:05:000
134491530,4ptp4l0-21swapper/219:40:122
134491530,4ptp4l0-21swapper/121:00:191
134491530,4ptp4l0-21swapper/121:00:191
134491530,3ptp4l23886-21ls23:15:291
571599525,7cyclictest41-21ksoftirqd/321:25:003
571599524,7cyclictest41-21ksoftirqd/322:30:013
571599523,6cyclictest41-21ksoftirqd/320:20:243
571599522,7cyclictest0-21swapper/321:15:193
5715995224,7cyclictest41-21ksoftirqd/322:55:133
5715995223,7cyclictest41-21ksoftirqd/323:50:223
571599522,22cyclictest0-21swapper/320:16:423
5712995224,6cyclictest9-21ksoftirqd/022:55:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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