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2026-07-02 - 03:51
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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 Jul 02, 2026 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2103199642,19cyclictest0-21swapper/021:55:230
134491640,4ptp4l0-21swapper/323:30:253
2103299618,22cyclictest766-21gdbus00:35:241
134491600,4ptp4l0-21swapper/322:30:153
134491600,4ptp4l0-21swapper/319:40:173
2103199590,18cyclictest14547-21cat23:35:010
134491590,3ptp4l0-21swapper/300:35:183
2103199580,24cyclictest32711-21seq20:45:060
134491580,4ptp4l0-21swapper/322:36:513
134491580,4ptp4l0-21swapper/221:13:562
134491580,4ptp4l0-21swapper/122:25:221
134491580,4ptp4l0-21swapper/122:25:221
134491580,4ptp4l0-21swapper/020:19:110
2103299571,3cyclictest137891phc2sys23:05:261
198082570,4sleep341-21ksoftirqd/319:05:203
134491570,4ptp4l0-21swapper/022:45:270
134491570,4ptp4l0-21swapper/020:44:230
134491570,4ptp4l0-21swapper/020:00:100
134491560,4ptp4l0-21swapper/323:14:033
134491560,4ptp4l0-21swapper/220:44:122
134491560,4ptp4l0-21swapper/120:23:141
134491560,3ptp4l0-21swapper/220:25:002
134491550,3ptp4l0-21swapper/222:47:572
134491550,3ptp4l0-21swapper/220:53:442
134491550,3ptp4l0-21swapper/219:34:312
134491550,3ptp4l0-21swapper/122:02:391
134491540,4ptp4l0-21swapper/221:34:332
134491540,4ptp4l0-21swapper/219:27:062
134491540,3ptp4l0-21swapper/320:40:293
134491530,4ptp4l0-21swapper/321:24:593
134491530,4ptp4l0-21swapper/221:51:552
134491530,3ptp4l0-21swapper/323:52:303
134491530,3ptp4l0-21swapper/320:05:283
134491530,3ptp4l0-21swapper/220:58:272
134491520,4ptp4l0-21swapper/323:28:083
134491520,4ptp4l0-21swapper/322:22:053
134491520,4ptp4l0-21swapper/220:46:002
134491520,3ptp4l0-21swapper/223:18:152
134491520,3ptp4l0-21swapper/221:18:422
2103199510,24cyclictest4418-21taskset19:42:090
134491510,9ptp4l19656-21memory19:05:180
134491510,5ptp4l0-21swapper/219:57:082
134491510,5ptp4l0-21swapper/219:57:082
134491510,4ptp4l0-21swapper/320:50:093
134491510,4ptp4l0-21swapper/219:40:042
134491510,3ptp4l0-21swapper/323:23:073
134491510,3ptp4l0-21swapper/321:33:263
134491510,3ptp4l0-21swapper/219:48:182
134491510,3ptp4l0-21swapper/219:17:032
134491500,8ptp4l19547-21irqstats19:05:171
134491500,6ptp4l0-21swapper/219:08:282
134491500,4ptp4l0-21swapper/321:39:333
134491500,4ptp4l0-21swapper/319:20:083
134491490,4ptp4l0-21swapper/223:49:592
134491490,3ptp4l0-21swapper/322:57:103
134491490,3ptp4l0-21swapper/321:01:163
134491490,16ptp4l0-21swapper/119:51:111
134491490,11ptp4l0-21swapper/300:09:083
134491480,8ptp4l7188-21apt-get19:50:120
134491480,4ptp4l0-21swapper/320:10:163
134491480,4ptp4l0-21swapper/319:35:423
134491480,4ptp4l0-21swapper/319:30:473
134491480,4ptp4l0-21swapper/300:10:263
134491480,4ptp4l0-21swapper/220:10:472
134491480,4ptp4l0-21swapper/219:51:592
134491480,3ptp4l2103499cyclictest23:40:273
134491470,4ptp4l2103499cyclictest21:25:393
134491470,4ptp4l0-21swapper/323:07:043
134491470,3ptp4l0-21swapper/220:02:042
134491460,9ptp4l0-21swapper/320:20:203
134491460,4ptp4l0-21swapper/319:14:393
134491460,10ptp4l0-21swapper/023:06:150
2103199453,20cyclictest18618-21cat20:15:010
134491450,9ptp4l4259-21sed20:50:271
134491450,9ptp4l0-21swapper/000:09:180
134491450,5ptp4l0-21swapper/122:17:061
134491450,3ptp4l0-21swapper/223:24:312
134491450,3ptp4l0-21swapper/220:07:072
134491450,11ptp4l0-21swapper/319:17:243
134491440,9ptp4l0-21swapper/020:07:110
134491440,8ptp4l0-21swapper/222:58:272
134491440,5ptp4l0-21swapper/121:45:251
134491440,4ptp4l0-21swapper/323:37:473
134491440,4ptp4l0-21swapper/220:16:572
134491440,3ptp4l0-21swapper/323:49:553
134491440,10ptp4l0-21swapper/321:58:063
2103199430,23cyclictest13485-21mailstats22:20:250
134491430,9ptp4l0-21swapper/300:28:513
134491430,8ptp4l0-21swapper/022:34:450
134491430,8ptp4l0-21swapper/000:25:140
134491430,5ptp4l19990-21memory22:35:210
134491430,5ptp4l0-21swapper/020:20:160
134491430,4ptp4l0-21swapper/323:16:333
134491430,4ptp4l0-21swapper/322:01:573
134491430,3ptp4l0-21swapper/222:04:452
134491430,10ptp4l0-21swapper/319:51:123
134491430,10ptp4l0-21swapper/319:48:463
134491430,10ptp4l0-21swapper/221:24:492
134491430,10ptp4l0-21swapper/219:21:562
21034994237,3cyclictest41-21ksoftirqd/320:50:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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