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2026-07-25 - 12:00
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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 Sat Jul 25, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1566721780,7sleep33174299cyclictest19:59:113
1566721780,7sleep33174299cyclictest19:59:113
90921760,7sleep13174099cyclictest20:00:051
423321730,6sleep23174199cyclictest20:03:352
1600621720,3sleep23174199cyclictest23:45:242
1576421570,6sleep03173999cyclictest19:59:440
1576421570,6sleep03173999cyclictest19:59:440
365721560,6sleep03173999cyclictest19:17:060
184692930,4sleep118460-21expr19:39:031
120492830,3sleep012048-21wc20:03:450
37562800,3sleep30-21swapper/319:18:113
137582790,4sleep16979-21spawn19:59:011
137582790,4sleep16979-21spawn19:59:011
31740997317,52cyclictest27841-21seq23:00:411
256742710,3sleep225612-21sh20:06:092
3174099709,16cyclictest31946-21grep19:10:141
13832700,5sleep30-21swapper/300:25:173
31740996714,12cyclictest14152-21chrt21:24:101
31740996714,10cyclictest5241-21chrt23:23:531
31740996710,11cyclictest15652-21sort20:06:401
31741996629,5cyclictest33-21ksoftirqd/219:59:352
31741996629,5cyclictest33-21ksoftirqd/219:59:352
3174099659,11cyclictest17054-21df_abs20:20:131
31740996516,46cyclictest11743-21seq21:17:591
31740996515,10cyclictest16781-21chrt23:49:191
14532650,4sleep01429-21execl19:46:040
31741996433,3cyclictest33-21ksoftirqd/219:40:222
31741996432,3cyclictest33-21ksoftirqd/223:40:012
31741996432,2cyclictest33-21ksoftirqd/219:25:162
31741996429,4cyclictest33-21ksoftirqd/221:48:422
31740996415,11cyclictest23385-21chrt21:41:511
31740996414,11cyclictest8533-21sleep19:28:001
31741996335,2cyclictest33-21ksoftirqd/221:15:002
31741996323,4cyclictest33-21ksoftirqd/219:35:562
3174099638,11cyclictest3861-21sed21:00:211
3174099638,11cyclictest3861-21sed21:00:211
31741996230,4cyclictest33-21ksoftirqd/221:24:192
31741996229,4cyclictest33-21ksoftirqd/222:24:002
31741996228,4cyclictest33-21ksoftirqd/223:32:082
31741996227,5cyclictest33-21ksoftirqd/221:30:332
31740996215,11cyclictest21684-21chrt00:00:111
31740996215,10cyclictest7669-21taskset00:39:191
31741996131,3cyclictest33-21ksoftirqd/219:45:352
31741996129,4cyclictest33-21ksoftirqd/221:50:222
31740996115,12cyclictest25811-21taskset21:48:251
31740996115,11cyclictest714-21chrt00:24:551
134491610,8ptp4l121rcu_preempt19:37:403
31741996034,7cyclictest33-21ksoftirqd/221:28:322
31741996030,4cyclictest33-21ksoftirqd/200:04:062
31741996029,3cyclictest33-21ksoftirqd/223:15:512
31741996027,6cyclictest33-21ksoftirqd/221:55:132
31741996025,4cyclictest33-21ksoftirqd/222:02:502
31741996025,3cyclictest33-21ksoftirqd/223:52:282
31741996021,7cyclictest33-21ksoftirqd/220:40:002
31740996015,10cyclictest26153-21chrt00:08:541
31740996014,11cyclictest9433-21seq22:20:411
31740996014,11cyclictest32665-21chrt23:10:491
31740996010,47cyclictest2803-21awk19:15:231
134491600,4ptp4l17849-21sort19:40:110
108532600,5sleep10-21swapper/123:35:161
31741995929,4cyclictest33-21ksoftirqd/220:18:472
31741995928,6cyclictest33-21ksoftirqd/220:21:242
31741995927,5cyclictest33-21ksoftirqd/220:13:182
31741995924,5cyclictest33-21ksoftirqd/222:05:132
3174099590,56cyclictest0-21swapper/123:30:281
134491590,8ptp4l0-21swapper/200:32:102
31741995830,7cyclictest33-21ksoftirqd/223:43:442
31741995829,4cyclictest33-21ksoftirqd/222:43:382
31741995828,4cyclictest33-21ksoftirqd/221:44:472
31741995825,3cyclictest33-21ksoftirqd/200:19:442
14352580,4sleep31430-21execl19:45:523
31741995729,3cyclictest33-21ksoftirqd/220:53:302
31741995727,4cyclictest33-21ksoftirqd/219:20:322
31741995724,3cyclictest33-21ksoftirqd/222:51:372
31740995714,39cyclictest15049-21/usr/sbin/munin22:35:141
31740995714,11cyclictest25604-21chrt20:37:571
134491570,4ptp4l0-21swapper/320:26:333
134491570,2ptp4l18271-21phc2sys-jitter23:50:240
31741995630,7cyclictest33-21ksoftirqd/223:57:402
31741995630,7cyclictest33-21ksoftirqd/219:50:212
31741995624,4cyclictest33-21ksoftirqd/200:38:162
31741995623,4cyclictest33-21ksoftirqd/220:45:352
31741995621,4cyclictest33-21ksoftirqd/220:25:142
3174099567,11cyclictest4595-21sed22:10:271
31740995614,10cyclictest14056-21chrt22:31:051
31740995612,11cyclictest6028-21seq19:22:011
3174099560,54cyclictest30291-21kworker/1:220:26:501
134491560,4ptp4l0-21swapper/319:30:303
134491560,4ptp4l0-21swapper/223:10:542
134491560,4ptp4l0-21swapper/222:14:212
134491560,4ptp4l0-21swapper/219:18:342
134491560,4ptp4l0-21swapper/021:46:040
134491560,4ptp4l0-21swapper/019:30:230
31741995523,4cyclictest33-21ksoftirqd/200:05:502
31741995523,3cyclictest33-21ksoftirqd/222:29:022
31741995522,5cyclictest33-21ksoftirqd/221:05:162
31741995521,4cyclictest33-21ksoftirqd/219:34:112
31741995519,9cyclictest33-21ksoftirqd/200:25:272
134491550,6ptp4l0-21swapper/319:09:233
31741995422,4cyclictest33-21ksoftirqd/220:31:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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