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2025-08-27 - 14:34
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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 Wed Aug 27, 2025 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191214136,66phc2sys0-21swapper/319:05:593
228102201167,22sleep10-21swapper/119:05:491
229782200167,22sleep20-21swapper/219:07:512
228832199165,23sleep00-21swapper/019:06:440
136991790,1ptp4l391rcuc/300:10:143
136991640,1ptp4l401ktimersoftd/319:32:343
136991480,1ptp4l401ktimersoftd/320:32:003
2343899463,12cyclictest28014-21sh21:35:001
23438994615,29cyclictest0-21swapper/121:35:461
23437994615,6cyclictest9-21ksoftirqd/021:55:290
23437994615,6cyclictest9-21ksoftirqd/019:45:160
23439994515,28cyclictest0-21swapper/220:15:262
2343999450,43cyclictest0-21swapper/221:35:272
23438994516,27cyclictest0-21swapper/120:32:461
23438994516,27cyclictest0-21swapper/119:10:361
23438994516,27cyclictest0-21swapper/119:10:361
23439994415,27cyclictest0-21swapper/200:30:262
136991440,1ptp4l401ktimersoftd/321:01:023
2343999430,41cyclictest0-21swapper/221:15:272
23437994314,4cyclictest9-21ksoftirqd/020:05:240
136991430,0ptp4l401ktimersoftd/321:21:553
23439994213,27cyclictest0-21swapper/223:15:262
23438994223,4cyclictest25-21ksoftirqd/123:21:401
23438994123,4cyclictest25-21ksoftirqd/100:15:081
2343799416,7cyclictest9-21ksoftirqd/000:10:230
23437994111,4cyclictest9-21ksoftirqd/019:15:010
23437994111,4cyclictest9-21ksoftirqd/019:15:010
136991410,0ptp4l401ktimersoftd/319:25:093
23438994033,4cyclictest25-21ksoftirqd/100:40:001
23437994012,4cyclictest9-21ksoftirqd/023:25:310
23437994011,3cyclictest9-21ksoftirqd/019:30:180
136991400,0ptp4l401ktimersoftd/323:38:373
23440993934,3cyclictest41-21ksoftirqd/319:39:593
23439993918,19cyclictest0-21swapper/220:30:272
2343899399,28cyclictest0-21swapper/121:16:161
23438993920,4cyclictest25-21ksoftirqd/100:09:261
23438993911,27cyclictest0-21swapper/123:16:061
2343799396,4cyclictest9-21ksoftirqd/023:30:200
2343799396,4cyclictest9-21ksoftirqd/023:30:200
23437993930,5cyclictest9-21ksoftirqd/023:50:040
2343799391,4cyclictest9-21ksoftirqd/020:15:280
23437993911,7cyclictest9-21ksoftirqd/023:25:000
23439993834,2cyclictest33-21ksoftirqd/222:40:002
2343799388,4cyclictest9-21ksoftirqd/020:00:210
23437993833,3cyclictest9-21ksoftirqd/020:00:000
2343799381,4cyclictest9-21ksoftirqd/022:55:160
23437993814,4cyclictest9-21ksoftirqd/023:40:240
23437993810,6cyclictest9-21ksoftirqd/000:30:430
23439993731,4cyclictest33-21ksoftirqd/219:11:032
23439993731,4cyclictest33-21ksoftirqd/219:11:032
2343899379,27cyclictest0-21swapper/100:31:461
2343799379,5cyclictest9-21ksoftirqd/019:25:170
2343799379,4cyclictest9-21ksoftirqd/023:55:090
2343799378,3cyclictest9-21ksoftirqd/022:39:460
2343799375,5cyclictest9-21ksoftirqd/022:07:090
23437993731,3cyclictest9-21ksoftirqd/000:35:020
2343799372,8cyclictest9-21ksoftirqd/022:50:260
2343799370,4cyclictest9-21ksoftirqd/000:15:260
2343799370,4cyclictest9-21ksoftirqd/000:00:230
2343799370,4cyclictest9-21ksoftirqd/000:00:230
23439993631,3cyclictest33-21ksoftirqd/223:51:482
23439993630,4cyclictest33-21ksoftirqd/223:42:192
23439993630,4cyclictest33-21ksoftirqd/222:11:162
23439993630,4cyclictest33-21ksoftirqd/219:52:062
23439993630,4cyclictest33-21ksoftirqd/219:37:032
23439993618,16cyclictest0-21swapper/223:20:262
2343799369,5cyclictest9-21ksoftirqd/021:49:370
2343799368,7cyclictest9-21ksoftirqd/019:20:260
2343799367,4cyclictest9-21ksoftirqd/020:28:550
2343799367,3cyclictest9-21ksoftirqd/021:22:390
2343799366,5cyclictest9-21ksoftirqd/020:51:430
2343799366,4cyclictest9-21ksoftirqd/020:56:410
2343799364,3cyclictest121rcu_preempt20:20:220
2343799363,2cyclictest121rcu_preempt22:30:180
2343799363,2cyclictest121rcu_preempt22:30:170
23437993631,3cyclictest9-21ksoftirqd/019:40:000
2343799361,4cyclictest9-21ksoftirqd/022:10:160
2343799360,4cyclictest9-21ksoftirqd/022:00:250
136991360,0ptp4l401ktimersoftd/319:55:253
23440993529,4cyclictest41-21ksoftirqd/322:59:113
23440993529,4cyclictest41-21ksoftirqd/300:05:113
23439993529,4cyclictest33-21ksoftirqd/222:16:092
23439993529,4cyclictest33-21ksoftirqd/221:26:302
23439993529,4cyclictest33-21ksoftirqd/221:26:302
23439993529,4cyclictest33-21ksoftirqd/220:07:562
23438993529,4cyclictest25-21ksoftirqd/119:44:191
23438993529,4cyclictest25-21ksoftirqd/100:22:421
23438993529,3cyclictest25-21ksoftirqd/120:15:001
23438993529,3cyclictest25-21ksoftirqd/120:15:001
23438993528,5cyclictest25-21ksoftirqd/121:48:131
2343799356,3cyclictest9-21ksoftirqd/021:30:230
2343799355,6cyclictest9-21ksoftirqd/023:15:300
23437993530,3cyclictest9-21ksoftirqd/020:15:010
23437993530,3cyclictest9-21ksoftirqd/020:15:010
23437993530,3cyclictest9-21ksoftirqd/000:25:000
23437993529,3cyclictest9-21ksoftirqd/023:15:000
2343799351,8cyclictest9-21ksoftirqd/000:05:250
2343799351,7cyclictest9-21ksoftirqd/023:05:180
1927523528,3sleep341-21ksoftirqd/300:35:253
59298340,1rtkit-daemon591-21rtkit-daemon00:27:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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