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2026-04-07 - 11:40
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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 rackdslot3.osadl.org (updated Tue Apr 07, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36662235169,21sleep10-21swapper/119:07:361
139491204171,22phc2sys0-21swapper/319:05:583
36872203169,23sleep20-21swapper/219:07:542
35282203171,22sleep00-21swapper/019:05:550
748021410,5sleep1414499cyclictest21:30:001
4146996028,8cyclictest41-21ksoftirqd/322:10:003
4146995827,6cyclictest41-21ksoftirqd/323:25:003
4146995826,4cyclictest41-21ksoftirqd/322:05:003
4146995626,6cyclictest41-21ksoftirqd/320:00:003
4146995527,3cyclictest41-21ksoftirqd/321:05:163
219672550,4sleep121965-21turbostat.cron00:15:001
219672550,4sleep121965-21turbostat.cron00:15:001
4146995424,7cyclictest41-21ksoftirqd/320:35:183
4146995424,3cyclictest41-21ksoftirqd/321:00:243
4146995423,3cyclictest41-21ksoftirqd/320:10:003
4146995422,4cyclictest41-21ksoftirqd/319:10:173
4146995422,3cyclictest41-21ksoftirqd/320:45:013
4146995328,6cyclictest41-21ksoftirqd/321:50:223
4146995325,3cyclictest41-21ksoftirqd/321:15:233
4146995321,4cyclictest41-21ksoftirqd/323:15:153
4146995319,4cyclictest41-21ksoftirqd/322:55:253
4146995317,6cyclictest41-21ksoftirqd/322:00:003
4146995224,7cyclictest41-21ksoftirqd/322:20:003
4146995223,3cyclictest41-21ksoftirqd/320:10:173
4146995221,7cyclictest41-21ksoftirqd/321:35:153
4146995218,6cyclictest41-21ksoftirqd/320:50:233
4146995217,8cyclictest41-21ksoftirqd/322:40:003
4146995214,7cyclictest41-21ksoftirqd/322:20:193
4146995119,4cyclictest41-21ksoftirqd/322:40:173
4146995119,4cyclictest41-21ksoftirqd/322:25:143
4146995119,3cyclictest41-21ksoftirqd/319:15:153
4146995117,4cyclictest41-21ksoftirqd/323:05:163
139391510,0ptp4l401ktimersoftd/300:01:153
4146995019,8cyclictest41-21ksoftirqd/323:10:253
4146995016,8cyclictest41-21ksoftirqd/319:35:003
4146995015,7cyclictest41-21ksoftirqd/320:05:013
4146994923,6cyclictest41-21ksoftirqd/321:45:173
4146994922,6cyclictest41-21ksoftirqd/319:50:243
4146994917,4cyclictest41-21ksoftirqd/321:15:003
4146994916,4cyclictest41-21ksoftirqd/300:35:163
4146994913,8cyclictest41-21ksoftirqd/323:30:153
4146994913,8cyclictest41-21ksoftirqd/323:30:153
4146994821,6cyclictest41-21ksoftirqd/320:50:013
4146994820,7cyclictest41-21ksoftirqd/320:30:003
4146994815,8cyclictest41-21ksoftirqd/323:50:183
4146994814,4cyclictest41-21ksoftirqd/300:25:173
414699479,5cyclictest41-21ksoftirqd/322:10:013
4146994722,6cyclictest41-21ksoftirqd/323:00:143
4146994719,6cyclictest41-21ksoftirqd/319:40:173
4146994714,9cyclictest41-21ksoftirqd/319:35:263
4146994714,9cyclictest41-21ksoftirqd/300:30:123
4146994713,10cyclictest41-21ksoftirqd/323:40:233
4146994710,5cyclictest41-21ksoftirqd/322:30:143
414699463,3cyclictest121rcu_preempt00:10:163
414699463,3cyclictest121rcu_preempt00:10:163
4146994617,4cyclictest41-21ksoftirqd/323:48:483
4146994615,4cyclictest41-21ksoftirqd/320:55:173
4146994614,4cyclictest41-21ksoftirqd/319:30:003
4146994613,7cyclictest41-21ksoftirqd/322:45:243
4146994518,6cyclictest41-21ksoftirqd/321:40:013
4146994517,3cyclictest41-21ksoftirqd/323:28:433
4146994515,4cyclictest41-21ksoftirqd/320:25:003
414699450,3cyclictest41-21ksoftirqd/321:20:013
4146994411,9cyclictest41-21ksoftirqd/320:15:143
414699439,6cyclictest41-21ksoftirqd/322:50:213
414699439,4cyclictest41-21ksoftirqd/321:25:213
414699433,3cyclictest121rcu_preempt19:24:593
4146994311,8cyclictest41-21ksoftirqd/319:45:263
4146994311,6cyclictest41-21ksoftirqd/323:40:013
414699427,4cyclictest41-21ksoftirqd/300:05:133
4146994238,2cyclictest26714-21idleruntime-cro00:25:013
4146994212,8cyclictest41-21ksoftirqd/323:55:263
4145994238,2cyclictest14410-21idleruntime-cro00:00:002
4145994237,3cyclictest13468-21cron22:50:002
139391420,0ptp4l401ktimersoftd/321:33:403
414699402,4cyclictest121rcu_preempt00:15:163
4145994029,9cyclictest33-21ksoftirqd/219:50:232
414699396,10cyclictest41-21ksoftirqd/320:30:163
4145993833,3cyclictest33-21ksoftirqd/223:25:002
4145993833,3cyclictest33-21ksoftirqd/223:05:002
4145993833,3cyclictest33-21ksoftirqd/220:30:192
4145993827,9cyclictest33-21ksoftirqd/219:20:132
4145993826,9cyclictest33-21ksoftirqd/220:10:242
4145993826,10cyclictest33-21ksoftirqd/220:00:132
4144993833,3cyclictest9610-21cron23:50:001
4145993732,3cyclictest33-21ksoftirqd/221:20:012
4145993732,3cyclictest33-21ksoftirqd/220:09:592
4145993731,4cyclictest33-21ksoftirqd/221:58:012
4145993730,5cyclictest33-21ksoftirqd/223:13:272
4145993723,12cyclictest33-21ksoftirqd/220:15:092
4145993632,2cyclictest33-21ksoftirqd/220:39:592
4145993630,3cyclictest33-21ksoftirqd/222:25:132
4145993625,9cyclictest33-21ksoftirqd/223:35:212
4144993630,4cyclictest25-21ksoftirqd/120:02:081
4144993630,4cyclictest25-21ksoftirqd/119:58:111
4144993630,4cyclictest25-21ksoftirqd/119:54:181
4144993629,4cyclictest25-21ksoftirqd/120:05:441
4145993530,3cyclictest33-21ksoftirqd/223:45:172
4145993530,3cyclictest33-21ksoftirqd/221:40:132
4145993530,3cyclictest33-21ksoftirqd/221:10:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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