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2026-09-01 - 06:56
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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 Mon Aug 31, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491252197,45phc2sys0-21swapper/307:06:593
199832203170,22sleep10-21swapper/107:05:521
200662202169,22sleep20-21swapper/207:06:562
201162201168,22sleep00-21swapper/007:07:350
101952630,2sleep0111rcuc/007:55:160
139391620,1ptp4l401ktimersoftd/312:25:003
310432560,6sleep32060399cyclictest09:45:203
20603994710,5cyclictest41-21ksoftirqd/311:00:003
139391440,0ptp4l401ktimersoftd/307:56:343
139391430,1ptp4l401ktimersoftd/308:36:593
20603994237,3cyclictest41-21ksoftirqd/308:20:013
20603994237,3cyclictest41-21ksoftirqd/308:20:013
20602994228,12cyclictest33-21ksoftirqd/210:25:012
139391420,0ptp4l401ktimersoftd/311:24:573
139391420,0ptp4l401ktimersoftd/311:24:573
139391420,0ptp4l401ktimersoftd/309:03:133
139391420,0ptp4l401ktimersoftd/307:35:203
139391410,0ptp4l401ktimersoftd/309:34:253
2060399406,7cyclictest41-21ksoftirqd/309:00:013
2060399405,3cyclictest121rcu_preempt09:10:003
20600994035,3cyclictest9-21ksoftirqd/012:20:000
20600994035,3cyclictest9-21ksoftirqd/010:00:010
2060399398,4cyclictest41-21ksoftirqd/310:55:013
20603993934,3cyclictest41-21ksoftirqd/309:19:593
2060399393,3cyclictest41-21ksoftirqd/307:30:263
20602993933,4cyclictest33-21ksoftirqd/208:10:002
20601993934,3cyclictest20114-21apt-get09:25:001
20600993935,2cyclictest9-21ksoftirqd/007:40:000
2060399387,4cyclictest41-21ksoftirqd/312:10:273
2060399387,4cyclictest41-21ksoftirqd/308:00:163
2060399386,4cyclictest41-21ksoftirqd/310:15:233
20603993817,4cyclictest41-21ksoftirqd/312:25:273
20600993832,4cyclictest9439-21cron07:55:000
57898370,2rtkit-daemon0-21swapper/009:20:310
57898370,2rtkit-daemon0-21swapper/007:20:170
2060399379,4cyclictest41-21ksoftirqd/309:40:133
2060399376,7cyclictest41-21ksoftirqd/311:04:593
2060399375,2cyclictest121rcu_preempt08:10:253
2060399374,3cyclictest121rcu_preempt07:19:353
20603993732,3cyclictest41-21ksoftirqd/310:00:123
20603993732,2cyclictest41-21ksoftirqd/310:40:003
20603993731,3cyclictest1304-21missed_timers12:05:213
2060399370,5cyclictest41-21ksoftirqd/311:25:293
20601993731,4cyclictest25-21ksoftirqd/111:50:541
20601993731,4cyclictest25-21ksoftirqd/107:20:071
20600993732,3cyclictest9-21ksoftirqd/012:15:000
2060399366,4cyclictest41-21ksoftirqd/308:45:003
2060399364,7cyclictest41-21ksoftirqd/310:25:143
20603993632,2cyclictest41-21ksoftirqd/309:20:243
20603993631,3cyclictest41-21ksoftirqd/310:25:003
20603993631,2cyclictest41-21ksoftirqd/308:30:153
20603993630,4cyclictest41-21ksoftirqd/310:33:543
2060399360,9cyclictest41-21ksoftirqd/307:50:153
20602993630,4cyclictest33-21ksoftirqd/207:26:012
20601993630,4cyclictest25-21ksoftirqd/108:31:141
20600993631,3cyclictest9-21ksoftirqd/010:19:590
20600993626,8cyclictest9-21ksoftirqd/008:15:180
20600993626,8cyclictest9-21ksoftirqd/008:15:180
2060399356,3cyclictest41-21ksoftirqd/308:05:053
2060399355,4cyclictest41-21ksoftirqd/311:05:123
2060399353,2cyclictest121rcu_preempt11:45:003
20603993532,2cyclictest41-21ksoftirqd/311:45:173
20603993531,2cyclictest41-21ksoftirqd/307:40:253
20603993531,2cyclictest41-21ksoftirqd/307:25:263
20603993530,3cyclictest41-21ksoftirqd/311:20:003
20603993530,3cyclictest41-21ksoftirqd/309:40:003
20603993530,2cyclictest41-21ksoftirqd/307:20:203
20603993529,4cyclictest41-21ksoftirqd/311:32:223
20603993529,4cyclictest41-21ksoftirqd/308:24:353
2060399351,3cyclictest41-21ksoftirqd/312:15:193
20602993530,3cyclictest33-21ksoftirqd/210:41:312
20602993529,4cyclictest33-21ksoftirqd/212:23:282
20602993529,4cyclictest33-21ksoftirqd/210:18:372
20602993529,4cyclictest33-21ksoftirqd/209:17:112
20602993529,4cyclictest33-21ksoftirqd/208:32:252
20602993528,4cyclictest33-21ksoftirqd/208:45:092
20601993529,4cyclictest25-21ksoftirqd/112:29:451
20601993529,4cyclictest25-21ksoftirqd/111:04:001
20601993529,4cyclictest25-21ksoftirqd/108:54:301
20601993529,4cyclictest25-21ksoftirqd/108:40:591
20601993529,4cyclictest25-21ksoftirqd/108:16:561
20601993529,4cyclictest25-21ksoftirqd/108:16:561
20601993529,4cyclictest25-21ksoftirqd/107:52:211
20601993529,4cyclictest25-21ksoftirqd/107:30:311
20601993529,4cyclictest25-21ksoftirqd/107:29:501
20601993529,4cyclictest25-21ksoftirqd/107:13:181
20600993530,3cyclictest9-21ksoftirqd/009:40:010
20600993529,4cyclictest9-21ksoftirqd/010:29:340
139391350,0ptp4l401ktimersoftd/310:10:153
20603993430,2cyclictest41-21ksoftirqd/312:40:003
20603993429,3cyclictest41-21ksoftirqd/312:33:533
20603993429,3cyclictest41-21ksoftirqd/311:55:263
20603993429,3cyclictest41-21ksoftirqd/311:15:003
20603993429,3cyclictest41-21ksoftirqd/310:00:003
20603993429,3cyclictest41-21ksoftirqd/309:52:563
20603993428,4cyclictest41-21ksoftirqd/309:13:023
20603993428,4cyclictest41-21ksoftirqd/308:27:403
2060399342,4cyclictest41-21ksoftirqd/311:35:133
2060399341,3cyclictest121rcu_preempt08:45:293
20602993429,3cyclictest33-21ksoftirqd/210:08:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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