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2026-03-27 - 22:23
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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 Mar 27, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591203169,23phc2sys0-21swapper/307:06:403
87992202168,23sleep10-21swapper/107:07:471
86732202167,23sleep00-21swapper/007:06:090
86702201167,22sleep20-21swapper/207:06:072
1791021360,6sleep1927199cyclictest09:35:211
1385918762,16phc2sys0-21swapper/307:10:003
138491690,1ptp4l401ktimersoftd/309:16:333
145272680,6sleep3401ktimersoftd/310:35:003
20942590,7sleep3927399cyclictest08:00:123
99342520,2sleep20-21swapper/209:20:142
138491470,1ptp4l401ktimersoftd/312:20:153
9271994636,6cyclictest25-21ksoftirqd/109:45:121
138491460,0ptp4l401ktimersoftd/308:11:143
927199450,1cyclictest0-21swapper/108:00:121
927199440,42cyclictest0-21swapper/108:57:421
138491440,0ptp4l401ktimersoftd/308:38:563
927199430,2cyclictest0-21swapper/108:40:031
138491430,1ptp4l401ktimersoftd/310:41:463
138491420,0ptp4l401ktimersoftd/311:20:273
138491420,0ptp4l401ktimersoftd/310:20:013
138491420,0ptp4l401ktimersoftd/308:34:033
9271994114,25cyclictest22753-21kworker/1:007:57:041
9273994035,3cyclictest41-21ksoftirqd/311:20:013
9273994034,4cyclictest41-21ksoftirqd/311:39:593
927199400,1cyclictest0-21swapper/112:19:041
138491400,0ptp4l401ktimersoftd/312:18:393
927199390,36cyclictest0-21swapper/112:00:131
9273993832,3cyclictest41-21ksoftirqd/311:10:003
9273993732,3cyclictest41-21ksoftirqd/312:35:163
9273993732,3cyclictest41-21ksoftirqd/311:45:003
9272993731,4cyclictest33-21ksoftirqd/208:06:122
9272993731,3cyclictest33-21ksoftirqd/209:17:102
9272993731,3cyclictest33-21ksoftirqd/208:25:012
9272993730,4cyclictest33-21ksoftirqd/211:11:582
9271993731,4cyclictest25-21ksoftirqd/110:53:471
927199370,1cyclictest0-21swapper/107:30:531
9270993731,4cyclictest9-21ksoftirqd/009:15:140
9270993730,5cyclictest9-21ksoftirqd/009:02:160
9273993631,3cyclictest41-21ksoftirqd/311:55:013
9273993631,3cyclictest41-21ksoftirqd/311:55:013
9272993631,3cyclictest33-21ksoftirqd/212:23:182
9272993631,3cyclictest33-21ksoftirqd/211:37:462
9272993631,3cyclictest33-21ksoftirqd/210:07:192
9272993630,4cyclictest33-21ksoftirqd/209:01:282
9272993630,4cyclictest33-21ksoftirqd/208:01:592
9271993631,3cyclictest25-21ksoftirqd/111:08:291
9271993631,3cyclictest25-21ksoftirqd/110:10:121
9271993631,3cyclictest25-21ksoftirqd/110:10:111
9271993630,4cyclictest25-21ksoftirqd/111:57:311
9271993630,4cyclictest25-21ksoftirqd/111:40:301
9271993630,4cyclictest25-21ksoftirqd/111:32:351
9271993630,4cyclictest25-21ksoftirqd/109:24:451
9270993631,3cyclictest9-21ksoftirqd/010:25:100
9270993630,4cyclictest9-21ksoftirqd/008:12:040
9270993630,4cyclictest9-21ksoftirqd/008:02:490
9270993630,3cyclictest9-21ksoftirqd/011:40:000
9270993629,4cyclictest9-21ksoftirqd/012:30:110
138491360,0ptp4l401ktimersoftd/309:05:183
9273993529,4cyclictest41-21ksoftirqd/310:58:283
9273993529,4cyclictest41-21ksoftirqd/307:57:113
9273993529,3cyclictest41-21ksoftirqd/312:30:053
9273993528,5cyclictest41-21ksoftirqd/311:04:253
927299357,26cyclictest0-21swapper/207:55:232
9272993530,3cyclictest33-21ksoftirqd/211:15:012
9272993530,3cyclictest33-21ksoftirqd/210:53:342
9272993530,3cyclictest33-21ksoftirqd/208:50:102
9272993530,3cyclictest33-21ksoftirqd/208:37:292
9272993530,3cyclictest33-21ksoftirqd/208:30:112
9272993529,4cyclictest33-21ksoftirqd/209:59:092
9272993529,4cyclictest33-21ksoftirqd/209:32:002
9272993529,4cyclictest33-21ksoftirqd/207:16:462
9272993528,4cyclictest33-21ksoftirqd/212:06:382
9271993530,3cyclictest25-21ksoftirqd/110:39:161
9271993530,3cyclictest25-21ksoftirqd/109:41:151
9271993529,4cyclictest25-21ksoftirqd/112:14:191
9271993529,4cyclictest25-21ksoftirqd/108:47:271
9271993529,4cyclictest25-21ksoftirqd/107:22:511
9270993530,3cyclictest9-21ksoftirqd/008:19:190
9270993530,3cyclictest9-21ksoftirqd/007:30:010
9270993529,4cyclictest9-21ksoftirqd/009:09:290
927099351,32cyclictest8964-21kworker/0:010:30:120
138491350,1ptp4l391rcuc/308:25:163
9273993429,3cyclictest41-21ksoftirqd/311:57:493
9273993429,3cyclictest41-21ksoftirqd/309:50:173
9273993428,4cyclictest41-21ksoftirqd/309:38:163
9273993428,4cyclictest41-21ksoftirqd/308:55:593
9273993428,4cyclictest41-21ksoftirqd/308:17:573
9273993428,4cyclictest41-21ksoftirqd/307:35:203
9273993428,3cyclictest41-21ksoftirqd/309:55:183
9273993427,4cyclictest41-21ksoftirqd/308:45:233
9272993429,3cyclictest33-21ksoftirqd/210:38:112
9272993428,4cyclictest33-21ksoftirqd/212:18:372
9272993428,4cyclictest33-21ksoftirqd/212:13:522
9272993428,4cyclictest33-21ksoftirqd/212:01:372
9272993428,4cyclictest33-21ksoftirqd/210:46:152
9272993428,4cyclictest33-21ksoftirqd/210:24:002
9272993428,4cyclictest33-21ksoftirqd/208:27:062
9272993428,4cyclictest33-21ksoftirqd/208:11:302
927299340,33cyclictest0-21swapper/211:40:142
9271993429,3cyclictest25-21ksoftirqd/112:37:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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