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2026-03-20 - 02:57
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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 Thu Mar 19, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491227199,19phc2sys0-21swapper/307:08:583
210552206171,23sleep20-21swapper/207:06:042
199032206166,30sleep10-21swapper/107:05:191
211062202169,22sleep00-21swapper/007:06:420
199721400,7sleep12165799cyclictest09:50:171
3112821390,5sleep02165699cyclictest07:30:010
139391760,1ptp4l391rcuc/311:25:223
21659996625,8cyclictest41-21ksoftirqd/308:10:003
21659996529,4cyclictest41-21ksoftirqd/312:40:003
21659996428,8cyclictest41-21ksoftirqd/311:20:013
21659996131,6cyclictest41-21ksoftirqd/310:45:003
21659996131,6cyclictest41-21ksoftirqd/308:55:283
21659996030,7cyclictest41-21ksoftirqd/311:40:133
21659996030,6cyclictest41-21ksoftirqd/312:25:123
21659996027,10cyclictest41-21ksoftirqd/310:05:153
21659996027,10cyclictest41-21ksoftirqd/310:05:153
21659996026,4cyclictest41-21ksoftirqd/308:50:013
21659996025,7cyclictest41-21ksoftirqd/312:20:173
21659995926,3cyclictest41-21ksoftirqd/308:40:273
21659995828,6cyclictest41-21ksoftirqd/310:30:163
21659995826,3cyclictest41-21ksoftirqd/311:05:213
21659995826,3cyclictest41-21ksoftirqd/311:05:203
21659995826,3cyclictest41-21ksoftirqd/310:15:123
21659995729,6cyclictest41-21ksoftirqd/311:45:133
21659995721,9cyclictest41-21ksoftirqd/309:10:003
21659995629,7cyclictest41-21ksoftirqd/311:30:143
21659995624,4cyclictest41-21ksoftirqd/312:30:213
21659995619,8cyclictest41-21ksoftirqd/309:20:253
21659995616,4cyclictest41-21ksoftirqd/307:36:453
21659995616,4cyclictest41-21ksoftirqd/307:36:453
2165999555,3cyclictest41-21ksoftirqd/312:20:013
21659995525,3cyclictest41-21ksoftirqd/311:10:243
21659995523,9cyclictest41-21ksoftirqd/309:00:283
21659995520,7cyclictest41-21ksoftirqd/311:50:133
21659995520,10cyclictest41-21ksoftirqd/308:20:003
21659995518,4cyclictest41-21ksoftirqd/309:28:253
21659995517,4cyclictest41-21ksoftirqd/310:37:043
21659995517,4cyclictest41-21ksoftirqd/310:37:043
21659995425,10cyclictest41-21ksoftirqd/308:35:173
21659995423,3cyclictest41-21ksoftirqd/310:00:153
21659995421,3cyclictest41-21ksoftirqd/312:00:213
21659995420,4cyclictest41-21ksoftirqd/309:30:153
21659995418,4cyclictest41-21ksoftirqd/310:45:153
21659995416,4cyclictest41-21ksoftirqd/310:54:213
21659995416,4cyclictest41-21ksoftirqd/309:12:073
21659995416,10cyclictest41-21ksoftirqd/308:15:183
139391540,0ptp4l391rcuc/311:55:223
21659995322,8cyclictest41-21ksoftirqd/308:35:003
21659995320,4cyclictest41-21ksoftirqd/307:57:503
21659995318,4cyclictest41-21ksoftirqd/308:25:013
21659995317,4cyclictest41-21ksoftirqd/310:25:373
21659995316,4cyclictest41-21ksoftirqd/309:17:013
21659995227,6cyclictest41-21ksoftirqd/311:20:223
21659995218,8cyclictest41-21ksoftirqd/310:10:243
21659995217,3cyclictest41-21ksoftirqd/309:55:153
21659995214,3cyclictest41-21ksoftirqd/308:10:243
21659995124,3cyclictest41-21ksoftirqd/309:35:183
21659995116,4cyclictest41-21ksoftirqd/307:29:593
21659995020,3cyclictest41-21ksoftirqd/311:00:233
21659995018,3cyclictest41-21ksoftirqd/307:20:103
21659995013,4cyclictest41-21ksoftirqd/312:09:153
21659995013,4cyclictest41-21ksoftirqd/312:09:153
21659995012,4cyclictest41-21ksoftirqd/311:35:573
21659995012,4cyclictest41-21ksoftirqd/311:35:573
21659994917,3cyclictest41-21ksoftirqd/307:48:023
21659994914,4cyclictest41-21ksoftirqd/308:50:163
2165999476,2cyclictest41-21ksoftirqd/307:10:223
2165999474,3cyclictest41-21ksoftirqd/312:10:153
21659994716,8cyclictest41-21ksoftirqd/309:40:213
21659994617,4cyclictest41-21ksoftirqd/310:20:593
2165999457,7cyclictest41-21ksoftirqd/307:40:123
2165999456,2cyclictest41-21ksoftirqd/310:55:123
2165999455,2cyclictest41-21ksoftirqd/307:18:493
2165999451,2cyclictest121rcu_preempt09:55:003
2165799452,41cyclictest15255-21cron08:05:011
139391450,1ptp4l401ktimersoftd/307:31:443
2165999446,5cyclictest41-21ksoftirqd/307:50:253
2165999444,3cyclictest121rcu_preempt08:05:013
57898420,8rtkit-daemon0-21swapper/108:19:491
2165699420,4cyclictest21596-21kworker/0:110:16:150
21656994136,3cyclictest551-21rs:main0
2165999403,6cyclictest41-21ksoftirqd/309:45:153
21657994033,4cyclictest9163-21cron11:15:011
57898390,7rtkit-daemon0-21swapper/110:33:201
21658993935,2cyclictest33-21ksoftirqd/211:40:002
21658993935,2cyclictest33-21ksoftirqd/211:40:002
21658993833,2cyclictest33-21ksoftirqd/211:00:002
21658993829,7cyclictest33-21ksoftirqd/207:52:402
21656993834,3cyclictest9-21ksoftirqd/012:05:000
21656993834,2cyclictest9-21ksoftirqd/009:10:010
21656993833,3cyclictest9-21ksoftirqd/008:35:010
21656993833,3cyclictest9-21ksoftirqd/008:30:010
21656993833,3cyclictest9-21ksoftirqd/007:40:000
21656993833,3cyclictest9-21ksoftirqd/007:40:000
21656993833,2cyclictest9-21ksoftirqd/012:15:000
57898370,3rtkit-daemon19765-21hddtemp_smartct09:20:170
21658993733,3cyclictest33-21ksoftirqd/211:35:002
21658993732,3cyclictest33-21ksoftirqd/212:05:492
21658993732,3cyclictest33-21ksoftirqd/212:05:492
21658993731,4cyclictest33-21ksoftirqd/208:46:442
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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