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2026-06-23 - 18:25
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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 Tue Jun 23, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591206172,23phc2sys0-21swapper/307:06:373
158042205171,23sleep00-21swapper/007:07:270
158102200167,22sleep10-21swapper/107:07:321
137892200167,22sleep20-21swapper/207:05:082
1431921470,5sleep31630499cyclictest11:25:173
263142770,2sleep20-21swapper/209:40:122
138491610,1ptp4l401ktimersoftd/307:10:173
76892590,2sleep00-21swapper/007:55:240
316962550,2sleep30-21swapper/310:55:163
138491550,1ptp4l401ktimersoftd/310:29:173
252812530,2sleep10-21swapper/111:45:281
29772520,3sleep22980-21unixbench_multi07:45:282
1630299501,46cyclictest14701-21ps12:30:241
1630299501,46cyclictest14701-21ps12:30:241
16302994930,17cyclictest25-21ksoftirqd/112:17:371
1630499462,42cyclictest24301-21kworker/3:111:51:533
16302994639,4cyclictest15778-21sh08:15:011
16302994516,27cyclictest0-21swapper/109:50:241
16302994516,27cyclictest0-21swapper/109:50:231
16304994338,3cyclictest8539-21turbostat09:04:593
16302994316,26cyclictest0-21swapper/111:50:231
16302994315,27cyclictest0-21swapper/107:20:231
1630299430,41cyclictest0-21swapper/108:35:331
16302994237,3cyclictest30596-21awk12:00:001
135191420,1getstats0-21swapper/310:40:053
138491410,0ptp4l401ktimersoftd/310:45:313
138491410,0ptp4l401ktimersoftd/309:50:233
138491410,0ptp4l401ktimersoftd/309:50:223
138491410,0ptp4l401ktimersoftd/309:26:223
16304994012,27cyclictest16745-21kworker/3:110:31:543
16302994011,27cyclictest0-21swapper/110:10:241
16301994034,3cyclictest9-21ksoftirqd/007:19:590
16302993911,26cyclictest0-21swapper/110:00:231
138491390,23ptp4l35792irq/125-enp1s0-12:15:013
16303993833,3cyclictest33-21ksoftirqd/212:25:002
16303993831,5cyclictest33-21ksoftirqd/208:03:052
16303993831,5cyclictest33-21ksoftirqd/208:03:042
1630299389,27cyclictest0-21swapper/111:00:331
16304993732,3cyclictest41-21ksoftirqd/309:10:193
16304993731,4cyclictest41-21ksoftirqd/308:05:003
16304993731,4cyclictest41-21ksoftirqd/308:05:003
16303993732,3cyclictest33-21ksoftirqd/209:55:122
16303993731,4cyclictest33-21ksoftirqd/211:23:472
16303993731,4cyclictest33-21ksoftirqd/209:51:122
16303993731,4cyclictest33-21ksoftirqd/209:51:112
16303993731,4cyclictest33-21ksoftirqd/208:26:592
1630399370,35cyclictest0-21swapper/207:12:422
16302993710,25cyclictest0-21swapper/110:50:341
16301993730,5cyclictest9-21ksoftirqd/011:22:330
16304993631,3cyclictest41-21ksoftirqd/307:54:593
16304993630,4cyclictest41-21ksoftirqd/312:30:363
16304993630,4cyclictest41-21ksoftirqd/312:30:353
16304993630,4cyclictest41-21ksoftirqd/312:30:013
16304993630,4cyclictest41-21ksoftirqd/307:56:323
16303993630,4cyclictest33-21ksoftirqd/212:35:282
16303993630,4cyclictest33-21ksoftirqd/211:34:062
16303993630,4cyclictest33-21ksoftirqd/211:15:282
16303993630,4cyclictest33-21ksoftirqd/211:00:322
16303993630,4cyclictest33-21ksoftirqd/207:53:222
16303993629,4cyclictest33-21ksoftirqd/209:04:272
1630299367,27cyclictest0-21swapper/108:00:331
1630299367,27cyclictest0-21swapper/108:00:331
16302993630,4cyclictest25-21ksoftirqd/110:59:151
16302993630,4cyclictest25-21ksoftirqd/110:37:411
16302993629,4cyclictest25-21ksoftirqd/111:37:591
16301993630,4cyclictest9-21ksoftirqd/008:08:580
16304993530,3cyclictest41-21ksoftirqd/311:45:123
16304993530,3cyclictest41-21ksoftirqd/307:27:503
16304993529,4cyclictest41-21ksoftirqd/310:04:543
16303993529,4cyclictest33-21ksoftirqd/212:33:592
16303993529,4cyclictest33-21ksoftirqd/212:33:592
16303993529,4cyclictest33-21ksoftirqd/211:45:092
16303993529,4cyclictest33-21ksoftirqd/210:11:212
16303993529,4cyclictest33-21ksoftirqd/207:31:442
16303993529,4cyclictest33-21ksoftirqd/207:31:442
16303993528,4cyclictest33-21ksoftirqd/207:15:122
16302993529,4cyclictest25-21ksoftirqd/112:29:291
16302993529,4cyclictest25-21ksoftirqd/110:16:301
16302993529,4cyclictest25-21ksoftirqd/109:43:091
16301993530,3cyclictest9-21ksoftirqd/010:15:210
16301993529,4cyclictest9-21ksoftirqd/010:13:320
16301993529,4cyclictest9-21ksoftirqd/008:59:340
16301993529,4cyclictest9-21ksoftirqd/007:28:080
16304993428,4cyclictest41-21ksoftirqd/311:32:073
16304993428,4cyclictest41-21ksoftirqd/311:15:393
16304993428,4cyclictest41-21ksoftirqd/309:43:353
16304993428,4cyclictest41-21ksoftirqd/309:08:563
16304993427,5cyclictest41-21ksoftirqd/308:17:293
16303993428,4cyclictest33-21ksoftirqd/211:39:352
16303993428,4cyclictest33-21ksoftirqd/209:36:442
16303993428,4cyclictest33-21ksoftirqd/208:52:542
16303993428,4cyclictest33-21ksoftirqd/208:49:062
16303993428,4cyclictest33-21ksoftirqd/208:35:542
16303993427,5cyclictest33-21ksoftirqd/208:40:112
16302993429,3cyclictest25-21ksoftirqd/112:25:001
16302993429,3cyclictest25-21ksoftirqd/109:02:411
16302993428,4cyclictest25-21ksoftirqd/109:22:351
16302993428,4cyclictest25-21ksoftirqd/108:06:171
16302993428,3cyclictest25-21ksoftirqd/111:15:591
16301993428,4cyclictest9-21ksoftirqd/012:30:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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