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2026-08-04 - 22:03
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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 Aug 04, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
47632207174,22sleep00-21swapper/007:08:530
139491206173,22phc2sys0-21swapper/307:06:333
46022203169,23sleep20-21swapper/207:06:542
46952202169,22sleep10-21swapper/107:08:041
1384721430,3sleep2514699cyclictest07:25:272
514799661,21cyclictest449-21dbus-daemon07:35:253
514799661,19cyclictest449-21dbus-daemon10:45:243
514799660,26cyclictest19966-21awk08:45:233
5146996629,7cyclictest33-21ksoftirqd/207:45:212
5146996532,9cyclictest33-21ksoftirqd/210:00:182
5146996532,9cyclictest33-21ksoftirqd/210:00:182
5147996410,18cyclictest21348-21smartctl08:50:173
514799640,22cyclictest10495-21/usr/sbin/munin11:50:153
5146996433,7cyclictest33-21ksoftirqd/212:10:012
5146996433,6cyclictest33-21ksoftirqd/209:55:202
5146996432,6cyclictest33-21ksoftirqd/211:00:002
5146996431,5cyclictest33-21ksoftirqd/209:15:012
514799630,19cyclictest8233-21hddtemp_smartct11:45:153
5146996331,6cyclictest33-21ksoftirqd/210:35:272
5146996331,10cyclictest33-21ksoftirqd/210:50:002
255132630,2sleep00-21swapper/010:05:220
5146996231,9cyclictest33-21ksoftirqd/210:30:252
5146996231,8cyclictest33-21ksoftirqd/211:04:592
5146996230,6cyclictest33-21ksoftirqd/209:50:272
5146996230,6cyclictest33-21ksoftirqd/208:55:162
5146996229,6cyclictest33-21ksoftirqd/209:05:012
5146996229,6cyclictest33-21ksoftirqd/209:05:002
5146996229,5cyclictest33-21ksoftirqd/211:20:272
5146996229,4cyclictest33-21ksoftirqd/208:15:242
5146996228,6cyclictest33-21ksoftirqd/208:50:242
5146996227,6cyclictest33-21ksoftirqd/209:20:262
5146996226,7cyclictest33-21ksoftirqd/207:55:142
5146996226,5cyclictest33-21ksoftirqd/210:20:182
5146996225,8cyclictest33-21ksoftirqd/207:40:282
5146996223,7cyclictest33-21ksoftirqd/211:55:182
5146996131,5cyclictest33-21ksoftirqd/212:10:162
5146996128,8cyclictest33-21ksoftirqd/208:05:012
5146996128,6cyclictest33-21ksoftirqd/210:50:232
5146996128,6cyclictest33-21ksoftirqd/207:15:252
5146996128,4cyclictest33-21ksoftirqd/210:10:002
5146996128,10cyclictest33-21ksoftirqd/210:27:012
5146996127,7cyclictest33-21ksoftirqd/210:15:012
5146996127,6cyclictest33-21ksoftirqd/210:15:182
514799600,21cyclictest403-21cat10:20:263
5146996031,5cyclictest33-21ksoftirqd/207:25:012
5146996029,7cyclictest33-21ksoftirqd/211:30:002
5146996029,7cyclictest33-21ksoftirqd/209:35:242
5146996029,5cyclictest33-21ksoftirqd/211:40:012
5146996028,7cyclictest33-21ksoftirqd/211:05:252
5146996026,9cyclictest33-21ksoftirqd/211:45:132
5146996026,5cyclictest33-21ksoftirqd/207:35:162
5146995930,7cyclictest33-21ksoftirqd/208:40:272
5146995928,5cyclictest33-21ksoftirqd/211:10:152
5146995928,5cyclictest33-21ksoftirqd/208:25:272
5146995927,6cyclictest33-21ksoftirqd/211:30:132
5146995927,6cyclictest33-21ksoftirqd/211:30:132
5146995927,5cyclictest33-21ksoftirqd/211:54:122
5146995927,3cyclictest33-21ksoftirqd/209:15:152
5146995926,6cyclictest33-21ksoftirqd/208:05:222
5146995926,6cyclictest33-21ksoftirqd/207:10:142
5146995925,6cyclictest33-21ksoftirqd/208:35:272
5146995923,6cyclictest33-21ksoftirqd/209:45:262
514799580,21cyclictest5703-21sshd10:33:563
5146995827,5cyclictest33-21ksoftirqd/212:25:152
5146995826,5cyclictest33-21ksoftirqd/211:15:182
5146995825,5cyclictest33-21ksoftirqd/209:05:272
5146995824,5cyclictest33-21ksoftirqd/209:30:212
5146995823,5cyclictest33-21ksoftirqd/212:15:192
514799570,26cyclictest27441-21irqstats10:10:193
514799570,20cyclictest30101-21phc2sys-jitter10:15:243
5146995725,5cyclictest33-21ksoftirqd/209:40:152
5146995724,5cyclictest33-21ksoftirqd/212:00:252
5146995724,5cyclictest33-21ksoftirqd/212:00:252
5146995724,4cyclictest33-21ksoftirqd/212:20:272
5146995723,6cyclictest33-21ksoftirqd/208:10:212
5146995722,6cyclictest33-21ksoftirqd/208:20:152
514799560,21cyclictest31721-21sensors11:25:263
5146995628,9cyclictest33-21ksoftirqd/207:30:212
5146995628,9cyclictest33-21ksoftirqd/207:30:212
5146995625,3cyclictest33-21ksoftirqd/209:25:242
5146995624,5cyclictest33-21ksoftirqd/212:35:152
5146995624,5cyclictest33-21ksoftirqd/211:40:282
5145995516,4cyclictest25-21ksoftirqd/108:05:191
514799531,20cyclictest19221-21taskset12:05:563
514799530,20cyclictest1300-21snmpd09:37:193
5145995310,4cyclictest25-21ksoftirqd/107:55:201
139391530,1ptp4l391rcuc/308:33:513
139391530,1ptp4l391rcuc/308:33:513
139391530,1ptp4l391rcuc/307:46:483
514799521,21cyclictest3421-21seq08:11:373
514799520,21cyclictest27425-21taskset09:01:303
514799520,21cyclictest27425-21taskset09:01:303
514799520,21cyclictest1119-21seq12:37:063
514799520,20cyclictest28864-21taskset12:27:533
514799520,19cyclictest15048-21/usr/sbin/munin12:00:253
514799520,19cyclictest15048-21/usr/sbin/munin12:00:253
514799520,18cyclictest0-21swapper/312:30:323
514799520,18cyclictest0-21swapper/312:30:323
5146995221,5cyclictest33-21ksoftirqd/207:50:252
5144995219,4cyclictest9-21ksoftirqd/008:25:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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