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2026-05-16 - 21:11
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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 Sat May 16, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491204170,22phc2sys0-21swapper/307:06:243
189812202168,22sleep10-21swapper/107:08:441
188982202169,22sleep00-21swapper/007:07:370
189272199167,21sleep20-21swapper/207:07:592
3255921590,2sleep00-21swapper/011:00:000
275472680,19sleep1241ktimersoftd/107:25:191
139391680,1ptp4l401ktimersoftd/310:21:293
139391590,1ptp4l401ktimersoftd/310:45:263
139391560,1ptp4l401ktimersoftd/311:22:153
139391520,1ptp4l401ktimersoftd/308:40:253
19384995043,4cyclictest10745-21grep12:29:593
19383994830,16cyclictest33-21ksoftirqd/208:25:002
19384994412,6cyclictest41-21ksoftirqd/312:00:173
1938499435,8cyclictest41-21ksoftirqd/309:25:003
19384994332,5cyclictest41-21ksoftirqd/310:05:003
139391430,1ptp4l401ktimersoftd/307:59:463
139391430,0ptp4l401ktimersoftd/310:09:553
139391430,0ptp4l401ktimersoftd/308:00:363
19381994237,3cyclictest31079-21cron07:35:010
1938199421,38cyclictest14780-21grep09:15:160
139391420,0ptp4l401ktimersoftd/310:10:153
139391420,0ptp4l401ktimersoftd/309:36:243
19384994130,3cyclictest41-21ksoftirqd/310:40:003
19383994130,9cyclictest33-21ksoftirqd/208:10:262
19381994126,4cyclictest9-21ksoftirqd/009:25:000
57898400,2rtkit-daemon577-21rtkit-daemon12:05:130
19384994011,4cyclictest41-21ksoftirqd/308:37:213
1938499400,2cyclictest121rcu_preempt11:00:003
19383994036,2cyclictest33-21ksoftirqd/209:05:002
1938499395,8cyclictest41-21ksoftirqd/309:00:153
19384993933,3cyclictest22694-21sh08:25:013
19383993935,3cyclictest33-21ksoftirqd/210:15:012
19383993934,3cyclictest33-21ksoftirqd/212:30:002
19383993934,3cyclictest33-21ksoftirqd/207:35:012
19383993933,3cyclictest33-21ksoftirqd/209:15:002
19383993928,9cyclictest33-21ksoftirqd/208:55:282
139391390,1ptp4l401ktimersoftd/311:09:413
1938499389,6cyclictest41-21ksoftirqd/307:25:003
1938499388,3cyclictest41-21ksoftirqd/310:25:143
1938499386,3cyclictest41-21ksoftirqd/308:25:163
1938499385,8cyclictest41-21ksoftirqd/308:15:263
1938499385,8cyclictest41-21ksoftirqd/308:15:263
1938499385,10cyclictest41-21ksoftirqd/311:40:153
19384993833,3cyclictest41-21ksoftirqd/312:10:183
19384993833,3cyclictest41-21ksoftirqd/307:50:143
19384993833,3cyclictest41-21ksoftirqd/307:40:003
19384993832,3cyclictest220042sleep307:15:153
19384993824,11cyclictest41-21ksoftirqd/311:10:163
1938499381,7cyclictest41-21ksoftirqd/310:50:143
1938499381,5cyclictest41-21ksoftirqd/309:53:273
19383993833,3cyclictest33-21ksoftirqd/210:00:002
19382993833,3cyclictest25-21ksoftirqd/110:20:001
19382993831,4cyclictest25-21ksoftirqd/109:01:551
19381993833,3cyclictest9-21ksoftirqd/009:45:000
1938499374,4cyclictest41-21ksoftirqd/309:25:173
1938499374,2cyclictest121rcu_preempt07:10:263
19384993734,2cyclictest41-21ksoftirqd/309:20:003
19384993733,3cyclictest41-21ksoftirqd/309:45:013
19384993732,3cyclictest41-21ksoftirqd/311:50:013
19384993732,3cyclictest41-21ksoftirqd/310:45:003
19384993732,3cyclictest41-21ksoftirqd/310:30:193
19384993732,3cyclictest41-21ksoftirqd/308:09:593
1938499371,7cyclictest41-21ksoftirqd/311:50:193
1938499371,7cyclictest41-21ksoftirqd/307:30:003
1938499371,4cyclictest41-21ksoftirqd/308:55:203
19383993733,2cyclictest33-21ksoftirqd/212:20:012
19383993733,2cyclictest33-21ksoftirqd/209:45:202
19383993732,3cyclictest33-21ksoftirqd/208:35:202
19383993727,9cyclictest33-21ksoftirqd/207:50:272
19383993726,9cyclictest33-21ksoftirqd/207:25:172
19383993725,10cyclictest33-21ksoftirqd/212:30:162
19382993731,4cyclictest25-21ksoftirqd/107:47:091
1938499366,4cyclictest41-21ksoftirqd/307:45:003
1938499365,7cyclictest41-21ksoftirqd/311:30:233
1938499365,3cyclictest41-21ksoftirqd/311:05:003
1938499364,8cyclictest41-21ksoftirqd/311:20:013
19384993631,3cyclictest41-21ksoftirqd/309:45:003
19384993631,3cyclictest41-21ksoftirqd/308:15:003
19384993631,2cyclictest41-21ksoftirqd/311:35:283
19384993631,2cyclictest41-21ksoftirqd/311:35:283
19384993630,4cyclictest41-21ksoftirqd/309:56:533
19384993629,4cyclictest41-21ksoftirqd/310:15:243
19383993631,3cyclictest33-21ksoftirqd/211:00:002
19383993631,3cyclictest33-21ksoftirqd/210:25:132
19383993631,3cyclictest33-21ksoftirqd/209:20:002
19383993630,4cyclictest33-21ksoftirqd/209:39:152
19383993630,3cyclictest33-21ksoftirqd/209:45:002
19383993622,3cyclictest33-21ksoftirqd/211:55:002
19381993627,6cyclictest9-21ksoftirqd/011:20:000
1938499354,3cyclictest41-21ksoftirqd/311:55:153
1938499354,3cyclictest121rcu_preempt12:05:273
1938499353,4cyclictest41-21ksoftirqd/308:30:213
19384993531,3cyclictest41-21ksoftirqd/307:50:013
19384993530,3cyclictest41-21ksoftirqd/312:35:143
19384993530,3cyclictest41-21ksoftirqd/312:15:143
19384993530,3cyclictest41-21ksoftirqd/309:10:153
1938499351,5cyclictest41-21ksoftirqd/308:50:133
1938499351,4cyclictest41-21ksoftirqd/312:30:253
19383993531,2cyclictest33-21ksoftirqd/211:10:002
19383993531,2cyclictest33-21ksoftirqd/209:05:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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