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2026-06-19 - 10:58
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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 rackdslot4.osadl.org (updated Fri Jun 19, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591204170,22phc2sys0-21swapper/319:05:463
63712203169,22sleep00-21swapper/019:07:480
62892200168,21sleep20-21swapper/219:06:492
62392200168,21sleep10-21swapper/119:06:131
654229661,28sleep00-21swapper/019:10:010
138491680,1ptp4l401ktimersoftd/322:05:143
138491640,1ptp4l401ktimersoftd/321:45:193
218832630,2sleep20-21swapper/219:40:022
6836994632,11cyclictest41-21ksoftirqd/323:40:003
6835994540,3cyclictest1171-21sh22:15:002
683599442,39cyclictest12039-21fschecks_count23:40:172
138491440,1ptp4l401ktimersoftd/320:11:023
138491440,0ptp4l401ktimersoftd/323:41:033
683599438,3cyclictest33-21ksoftirqd/223:35:002
6835994331,9cyclictest33-21ksoftirqd/222:28:162
6835994230,9cyclictest33-21ksoftirqd/223:55:282
138491420,0ptp4l401ktimersoftd/322:45:473
138491420,0ptp4l401ktimersoftd/322:45:473
6835994136,3cyclictest33-21ksoftirqd/220:09:592
6835994126,11cyclictest33-21ksoftirqd/219:50:252
6835994113,6cyclictest33-21ksoftirqd/223:50:182
683599410,2cyclictest121rcu_preempt20:25:182
138491410,1ptp4l401ktimersoftd/319:21:363
6835994034,3cyclictest33-21ksoftirqd/221:20:002
6835994016,3cyclictest33-21ksoftirqd/220:39:162
138491400,0ptp4l401ktimersoftd/321:25:003
88772390,6sleep3683699cyclictest23:35:003
683599399,4cyclictest33-21ksoftirqd/220:50:002
6835993934,3cyclictest33-21ksoftirqd/222:10:002
6835993933,3cyclictest33-21ksoftirqd/220:40:242
6835993930,7cyclictest33-21ksoftirqd/222:30:202
683599391,3cyclictest121rcu_preempt00:02:372
6835993911,4cyclictest33-21ksoftirqd/222:20:192
6834993934,3cyclictest25-21ksoftirqd/120:20:001
138491390,1ptp4l401ktimersoftd/319:30:283
6836993832,3cyclictest41-21ksoftirqd/323:50:113
683599389,4cyclictest33-21ksoftirqd/220:00:112
683599388,4cyclictest33-21ksoftirqd/221:35:212
6835993834,2cyclictest33-21ksoftirqd/222:40:222
6835993833,3cyclictest33-21ksoftirqd/222:35:282
6835993831,4cyclictest33-21ksoftirqd/223:38:002
6834993833,3cyclictest25-21ksoftirqd/122:20:001
50798380,4rtkit-daemon24451-21diskstats21:55:152
6836993731,4cyclictest41-21ksoftirqd/319:52:193
6836993731,4cyclictest41-21ksoftirqd/300:21:583
6836993731,4cyclictest41-21ksoftirqd/300:09:423
6836993730,4cyclictest41-21ksoftirqd/322:42:413
683599379,7cyclictest33-21ksoftirqd/221:40:232
683599379,3cyclictest33-21ksoftirqd/222:55:272
683599376,4cyclictest33-21ksoftirqd/221:50:142
683599375,2cyclictest121rcu_preempt00:20:272
683599373,2cyclictest121rcu_preempt00:10:232
683599373,2cyclictest121rcu_preempt00:10:222
6835993732,3cyclictest33-21ksoftirqd/219:15:002
6835993731,4cyclictest33-21ksoftirqd/219:30:082
6835993731,3cyclictest33-21ksoftirqd/223:22:252
6835993731,3cyclictest33-21ksoftirqd/221:00:242
6835993731,3cyclictest33-21ksoftirqd/219:35:212
6835993730,4cyclictest33-21ksoftirqd/220:55:012
6835993730,4cyclictest33-21ksoftirqd/219:25:182
6835993729,5cyclictest33-21ksoftirqd/220:21:282
6833993730,5cyclictest9-21ksoftirqd/000:29:490
6833993730,4cyclictest9-21ksoftirqd/023:21:050
6833993730,4cyclictest9-21ksoftirqd/023:19:450
6833993730,4cyclictest9-21ksoftirqd/022:36:080
6833993730,4cyclictest9-21ksoftirqd/020:40:300
6836993630,4cyclictest41-21ksoftirqd/323:58:473
6836993630,4cyclictest41-21ksoftirqd/321:58:403
6836993630,4cyclictest41-21ksoftirqd/319:16:533
6836993630,4cyclictest41-21ksoftirqd/300:34:503
6836993630,4cyclictest41-21ksoftirqd/300:11:393
6836993630,4cyclictest41-21ksoftirqd/300:11:393
6836993629,4cyclictest41-21ksoftirqd/323:28:583
683599367,4cyclictest33-21ksoftirqd/219:15:262
683599367,3cyclictest33-21ksoftirqd/200:17:092
683599366,3cyclictest33-21ksoftirqd/200:30:012
6835993632,2cyclictest33-21ksoftirqd/200:37:292
6835993631,3cyclictest33-21ksoftirqd/222:00:182
6835993631,3cyclictest33-21ksoftirqd/220:35:002
6835993631,3cyclictest33-21ksoftirqd/219:55:122
6835993631,3cyclictest33-21ksoftirqd/219:45:172
6835993630,3cyclictest33-21ksoftirqd/223:10:182
6834993632,3cyclictest25-21ksoftirqd/123:40:001
6834993631,3cyclictest25-21ksoftirqd/123:45:001
6834993631,3cyclictest25-21ksoftirqd/121:50:101
6834993631,3cyclictest25-21ksoftirqd/121:20:181
6834993631,3cyclictest25-21ksoftirqd/121:20:181
6834993630,4cyclictest25-21ksoftirqd/121:45:581
6834993630,4cyclictest25-21ksoftirqd/121:26:331
6834993630,3cyclictest25-21ksoftirqd/120:30:121
6834993629,4cyclictest25-21ksoftirqd/120:36:071
6833993631,3cyclictest9-21ksoftirqd/020:00:180
6833993630,3cyclictest9-21ksoftirqd/019:30:090
6833993629,4cyclictest9-21ksoftirqd/021:59:330
6836993530,3cyclictest41-21ksoftirqd/300:35:243
6836993529,4cyclictest41-21ksoftirqd/322:56:173
6836993529,4cyclictest41-21ksoftirqd/322:37:283
6836993529,4cyclictest41-21ksoftirqd/322:21:473
6836993529,4cyclictest41-21ksoftirqd/320:43:503
6836993528,4cyclictest41-21ksoftirqd/323:17:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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