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2026-04-02 - 09:16
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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 Apr 02, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491205172,22phc2sys0-21swapper/319:09:203
88522203170,22sleep00-21swapper/019:08:170
88492202168,23sleep20-21swapper/219:08:152
86842201168,22sleep10-21swapper/119:06:061
1978821400,7sleep0928299cyclictest21:45:140
139391710,0ptp4l401ktimersoftd/321:57:233
139391670,1ptp4l401ktimersoftd/323:48:463
139391650,1ptp4l401ktimersoftd/300:22:073
261302580,4sleep10-21swapper/100:10:211
9283995611,7cyclictest25-21ksoftirqd/120:09:221
9284995518,7cyclictest33-21ksoftirqd/222:20:132
9283995414,8cyclictest25-21ksoftirqd/120:15:011
9283995411,9cyclictest25-21ksoftirqd/122:15:011
305632540,1sleep00-21swapper/023:15:000
305632540,1sleep00-21swapper/023:15:000
139391540,8ptp4l0-21swapper/320:29:133
9283995318,6cyclictest25-21ksoftirqd/119:30:011
9283995314,4cyclictest25-21ksoftirqd/120:30:111
212342520,1sleep20-21swapper/220:40:132
139391520,1ptp4l401ktimersoftd/322:35:353
9284995131,9cyclictest33-21ksoftirqd/219:35:242
9283995118,4cyclictest25-21ksoftirqd/123:25:261
9283995117,2cyclictest121rcu_preempt20:55:141
139391510,1ptp4l401ktimersoftd/320:32:513
9282995017,4cyclictest9-21ksoftirqd/022:50:010
139391500,1ptp4l391rcuc/320:48:433
9284994920,19cyclictest33-21ksoftirqd/223:10:232
9284994920,19cyclictest33-21ksoftirqd/223:10:232
928399492,8cyclictest25-21ksoftirqd/120:30:011
928399482,3cyclictest25-21ksoftirqd/122:00:011
134491480,2getstats0-21swapper/323:10:013
9283994713,9cyclictest25-21ksoftirqd/122:55:131
9283994613,7cyclictest25-21ksoftirqd/122:15:271
9283994612,6cyclictest25-21ksoftirqd/121:05:001
9284994523,11cyclictest33-21ksoftirqd/219:45:002
928399459,4cyclictest25-21ksoftirqd/121:30:131
928399458,4cyclictest25-21ksoftirqd/119:50:141
928399457,4cyclictest25-21ksoftirqd/122:00:241
9283994532,3cyclictest25-21ksoftirqd/123:45:141
928399450,2cyclictest7298-21sh21:19:591
928399448,4cyclictest25-21ksoftirqd/123:10:141
928399448,4cyclictest25-21ksoftirqd/123:10:141
928399448,10cyclictest25-21ksoftirqd/119:10:161
928399445,2cyclictest25-21ksoftirqd/120:00:001
9283994438,3cyclictest25-21ksoftirqd/120:40:001
928399441,3cyclictest25-21ksoftirqd/123:50:181
139391440,0ptp4l401ktimersoftd/321:12:333
9284994331,9cyclictest33-21ksoftirqd/220:15:262
9284994325,4cyclictest33-21ksoftirqd/222:30:012
9284994324,9cyclictest33-21ksoftirqd/219:15:242
9284994322,8cyclictest33-21ksoftirqd/223:55:012
9284994320,11cyclictest33-21ksoftirqd/219:30:212
9284994313,9cyclictest33-21ksoftirqd/219:50:202
9283994332,2cyclictest25-21ksoftirqd/119:15:131
928399432,3cyclictest25-21ksoftirqd/120:20:171
928399432,2cyclictest25-21ksoftirqd/120:15:131
928399431,7cyclictest25-21ksoftirqd/122:50:211
928399431,2cyclictest25-21ksoftirqd/122:40:221
928399430,3cyclictest25-21ksoftirqd/123:30:171
928299439,3cyclictest9-21ksoftirqd/020:44:590
139391430,0ptp4l401ktimersoftd/321:47:323
9284994222,10cyclictest33-21ksoftirqd/222:30:192
928399426,3cyclictest121rcu_preempt21:50:151
928399425,6cyclictest25-21ksoftirqd/122:20:161
928399424,3cyclictest121rcu_preempt22:50:001
928399424,3cyclictest121rcu_preempt19:20:231
9283994238,2cyclictest25-21ksoftirqd/123:40:001
9283994236,3cyclictest25-21ksoftirqd/123:25:011
9283994236,3cyclictest25-21ksoftirqd/121:50:011
928399423,2cyclictest25-21ksoftirqd/121:40:261
9283994232,2cyclictest25-21ksoftirqd/120:51:351
928399421,5cyclictest25-21ksoftirqd/100:05:121
928299421,2cyclictest121rcu_preempt23:05:190
9282994211,4cyclictest9-21ksoftirqd/000:30:160
9282994210,8cyclictest9-21ksoftirqd/019:45:240
9282994210,3cyclictest9-21ksoftirqd/019:40:130
139391420,0ptp4l401ktimersoftd/321:24:323
134491420,1getstats0-21swapper/323:45:003
928399416,9cyclictest25-21ksoftirqd/123:58:041
928399416,32cyclictest24132-21irqrtprio20:45:181
928399415,2cyclictest25-21ksoftirqd/123:40:181
928399414,2cyclictest121rcu_preempt20:00:161
928399414,2cyclictest121rcu_preempt19:35:221
9283994137,2cyclictest25-21ksoftirqd/123:10:001
9283994136,3cyclictest25-21ksoftirqd/123:00:221
9283994136,3cyclictest25-21ksoftirqd/100:25:001
9283994136,2cyclictest25-21ksoftirqd/122:40:001
9283994135,3cyclictest25-21ksoftirqd/123:20:011
9283994134,4cyclictest25-21ksoftirqd/100:05:001
9283994134,3cyclictest25-21ksoftirqd/120:40:131
9283994124,4cyclictest25-21ksoftirqd/119:40:101
928399411,5cyclictest25-21ksoftirqd/121:20:211
928299419,4cyclictest9-21ksoftirqd/023:29:590
928299418,3cyclictest9-21ksoftirqd/021:20:130
9282994121,9cyclictest9-21ksoftirqd/020:55:220
139391410,0ptp4l401ktimersoftd/320:51:283
139391410,0ptp4l401ktimersoftd/319:28:363
9284994030,8cyclictest33-21ksoftirqd/200:00:152
9284994029,9cyclictest33-21ksoftirqd/221:25:142
9284994023,5cyclictest33-21ksoftirqd/220:10:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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