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2026-08-31 - 05:19
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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 Mon Aug 31, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221921650,6sleep31824299cyclictest19:45:133
263221430,6sleep11824099cyclictest20:55:161
1537021350,3sleep31824299cyclictest23:40:193
172612860,5sleep30-21swapper/319:05:263
172612860,5sleep30-21swapper/319:05:263
1824199732,31cyclictest0-21swapper/220:05:152
1824199732,31cyclictest0-21swapper/220:05:152
1824199702,31cyclictest0-21swapper/220:20:252
18240996519,9cyclictest25-21ksoftirqd/119:20:011
18240996428,9cyclictest25-21ksoftirqd/123:53:131
134491640,3ptp4l0-21swapper/221:15:272
18241996330,6cyclictest33-21ksoftirqd/223:35:172
1824199632,59cyclictest0-21swapper/223:20:292
18241996228,7cyclictest33-21ksoftirqd/200:15:212
18240996131,3cyclictest25-21ksoftirqd/122:10:221
134491610,16ptp4l0-21swapper/322:40:003
18240996028,4cyclictest25-21ksoftirqd/122:59:551
18240996028,3cyclictest25-21ksoftirqd/119:13:531
18240995929,7cyclictest25-21ksoftirqd/120:20:221
134491590,4ptp4l0-21swapper/120:00:171
134491590,4ptp4l0-21swapper/019:10:010
18241995825,4cyclictest33-21ksoftirqd/221:10:162
18240995827,3cyclictest25-21ksoftirqd/100:05:011
18240995821,3cyclictest25-21ksoftirqd/100:12:451
134491580,3ptp4l0-21swapper/021:45:170
18241995728,4cyclictest33-21ksoftirqd/220:36:282
18241995724,5cyclictest33-21ksoftirqd/220:10:142
18240995731,7cyclictest25-21ksoftirqd/122:47:041
18240995731,7cyclictest25-21ksoftirqd/119:21:421
18240995730,3cyclictest25-21ksoftirqd/122:50:261
18240995727,4cyclictest25-21ksoftirqd/120:34:131
18240995723,4cyclictest25-21ksoftirqd/120:13:091
18240995721,8cyclictest25-21ksoftirqd/121:37:381
18240995721,4cyclictest25-21ksoftirqd/123:15:281
18240995720,4cyclictest25-21ksoftirqd/122:35:571
18240995719,3cyclictest25-21ksoftirqd/119:46:391
1824199565,9cyclictest33-21ksoftirqd/219:35:222
18241995628,6cyclictest33-21ksoftirqd/200:07:302
18240995627,4cyclictest25-21ksoftirqd/123:29:041
18240995625,6cyclictest25-21ksoftirqd/122:25:191
18240995625,4cyclictest25-21ksoftirqd/122:15:271
18240995624,8cyclictest25-21ksoftirqd/100:30:281
18240995623,7cyclictest25-21ksoftirqd/120:46:571
18240995619,7cyclictest25-21ksoftirqd/121:05:191
134491560,4ptp4l0-21swapper/221:29:252
1824199554,8cyclictest33-21ksoftirqd/223:55:002
1824199554,3cyclictest121rcu_preempt22:10:162
1824199553,6cyclictest33-21ksoftirqd/221:50:272
18241995524,8cyclictest33-21ksoftirqd/221:30:172
1824199552,29cyclictest0-21swapper/220:51:152
1824199552,29cyclictest0-21swapper/220:51:152
18241995521,4cyclictest33-21ksoftirqd/221:35:142
18240995528,7cyclictest25-21ksoftirqd/119:40:491
18240995523,4cyclictest25-21ksoftirqd/100:39:471
18240995520,3cyclictest25-21ksoftirqd/122:02:511
134491550,3ptp4l0-21swapper/100:15:521
18241995423,3cyclictest33-21ksoftirqd/219:12:272
1824199542,28cyclictest0-21swapper/223:58:152
1824199540,7cyclictest33-21ksoftirqd/200:05:012
18240995428,8cyclictest25-21ksoftirqd/100:28:581
18240995428,8cyclictest25-21ksoftirqd/100:28:581
18240995428,4cyclictest25-21ksoftirqd/123:40:141
18240995422,8cyclictest25-21ksoftirqd/120:15:271
18240995422,4cyclictest25-21ksoftirqd/121:22:331
18240995421,4cyclictest25-21ksoftirqd/121:15:151
134491540,3ptp4l0-21swapper/200:38:562
134491540,12ptp4l17027-21ntp_states19:05:230
134491540,12ptp4l17027-21ntp_states19:05:230
1824199535,8cyclictest33-21ksoftirqd/222:25:292
1824199535,10cyclictest33-21ksoftirqd/219:30:252
1824199535,10cyclictest33-21ksoftirqd/219:30:252
1824199532,20cyclictest0-21swapper/221:43:082
18240995326,7cyclictest25-21ksoftirqd/121:12:311
18240995325,7cyclictest25-21ksoftirqd/123:35:171
18240995324,4cyclictest25-21ksoftirqd/100:23:181
18240995315,7cyclictest25-21ksoftirqd/123:31:061
134491530,4ptp4l0-21swapper/021:58:460
1824199525,4cyclictest33-21ksoftirqd/200:24:592
1824199525,2cyclictest121rcu_preempt23:00:262
1824199524,8cyclictest33-21ksoftirqd/220:50:012
1824199524,8cyclictest33-21ksoftirqd/200:30:202
1824199524,6cyclictest33-21ksoftirqd/221:00:262
1824199524,5cyclictest33-21ksoftirqd/220:00:152
1824199522,6cyclictest33-21ksoftirqd/223:11:022
1824199522,6cyclictest33-21ksoftirqd/221:05:222
18241995224,8cyclictest33-21ksoftirqd/223:15:282
1824199521,6cyclictest0-21swapper/222:45:182
18240995228,7cyclictest25-21ksoftirqd/120:38:301
18240995228,7cyclictest25-21ksoftirqd/120:25:061
18240995225,7cyclictest25-21ksoftirqd/123:00:111
18240995225,6cyclictest25-21ksoftirqd/121:41:531
18240995222,7cyclictest25-21ksoftirqd/121:55:221
18240995214,7cyclictest25-21ksoftirqd/119:36:131
134491520,4ptp4l0-21swapper/023:13:250
1824199513,7cyclictest33-21ksoftirqd/220:30:232
1824199512,31cyclictest0-21swapper/219:20:012
1824199510,7cyclictest33-21ksoftirqd/219:55:262
18240995118,7cyclictest25-21ksoftirqd/121:30:001
18240995117,8cyclictest25-21ksoftirqd/121:00:171
18240995116,7cyclictest25-21ksoftirqd/119:25:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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