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2026-09-24 - 01:06
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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 Sep 23, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
294032206173,22sleep10-21swapper/107:06:271
294272204170,22sleep30-21swapper/307:06:443
294662203169,22sleep20-21swapper/207:07:162
296422202169,22sleep00-21swapper/007:09:270
2436821310,3sleep32998299cyclictest11:25:203
45572740,4sleep34562-21latency08:30:203
75092600,4sleep3401ktimersoftd/307:30:153
75832530,3sleep12998099cyclictest09:45:131
32412530,1sleep00-21swapper/010:40:230
149532510,1sleep00-21swapper/011:05:230
2998199491,46cyclictest4170-21kworker/2:108:50:232
283902490,2sleep30-21swapper/311:35:153
29980994842,3cyclictest19172-21sh10:10:001
29980994740,4cyclictest2113-21awk07:20:011
29982994539,4cyclictest26607-21fschecks_count08:10:163
2997999431,39cyclictest12452-21fschecks_count09:55:160
139391420,1ptp4l401ktimersoftd/310:39:473
139391420,0ptp4l401ktimersoftd/309:07:163
139391410,1ptp4l401ktimersoftd/308:18:283
139391410,0ptp4l401ktimersoftd/311:17:433
139391410,0ptp4l401ktimersoftd/308:50:153
139391410,0ptp4l401ktimersoftd/308:20:163
139391400,1ptp4l401ktimersoftd/309:31:483
139391400,1ptp4l401ktimersoftd/307:36:263
29981993822,13cyclictest33-21ksoftirqd/207:30:132
29980993831,5cyclictest25-21ksoftirqd/108:23:331
29980993831,4cyclictest25-21ksoftirqd/110:52:591
29982993734,2cyclictest41-21ksoftirqd/310:45:013
29982993733,3cyclictest41-21ksoftirqd/311:45:013
29982993731,4cyclictest41-21ksoftirqd/309:45:313
2998199374,30cyclictest13394-21latency_hist11:05:012
29981993731,4cyclictest33-21ksoftirqd/207:45:552
29981993722,13cyclictest33-21ksoftirqd/210:31:312
29980993732,3cyclictest23528-21cron08:05:001
29980993731,4cyclictest25-21ksoftirqd/110:45:311
29980993731,4cyclictest25-21ksoftirqd/108:52:251
29980993731,3cyclictest28580-21wc08:15:131
29980993730,4cyclictest25-21ksoftirqd/109:50:591
29979993730,4cyclictest9-21ksoftirqd/009:45:110
29979993723,5cyclictest9-21ksoftirqd/007:20:220
29982993630,4cyclictest41-21ksoftirqd/307:58:023
29981993628,5cyclictest33-21ksoftirqd/210:40:292
29980993630,4cyclictest25-21ksoftirqd/112:32:171
29980993630,4cyclictest25-21ksoftirqd/109:32:401
29980993630,4cyclictest25-21ksoftirqd/109:22:221
29979993630,4cyclictest9-21ksoftirqd/010:10:010
29979993623,4cyclictest9-21ksoftirqd/009:04:440
29982993530,3cyclictest41-21ksoftirqd/311:55:103
29982993530,3cyclictest41-21ksoftirqd/309:25:373
29982993530,2cyclictest41-21ksoftirqd/311:47:313
29982993529,4cyclictest41-21ksoftirqd/312:17:113
29982993529,4cyclictest41-21ksoftirqd/310:53:113
29982993529,4cyclictest41-21ksoftirqd/308:57:173
29982993528,4cyclictest41-21ksoftirqd/312:36:403
29982993528,4cyclictest41-21ksoftirqd/310:45:133
29982993528,3cyclictest41-21ksoftirqd/312:00:203
29981993530,3cyclictest33-21ksoftirqd/208:19:012
29981993530,3cyclictest33-21ksoftirqd/207:55:122
29981993529,4cyclictest33-21ksoftirqd/211:15:072
29981993529,4cyclictest33-21ksoftirqd/210:09:412
29981993529,4cyclictest33-21ksoftirqd/209:07:072
29981993529,4cyclictest33-21ksoftirqd/207:19:352
29981993528,4cyclictest33-21ksoftirqd/208:12:192
29980993529,4cyclictest25-21ksoftirqd/110:04:011
29980993527,6cyclictest25-21ksoftirqd/112:10:001
29979993529,4cyclictest9-21ksoftirqd/012:36:140
29979993529,4cyclictest9-21ksoftirqd/012:06:130
29979993529,4cyclictest9-21ksoftirqd/011:16:420
29979993529,4cyclictest9-21ksoftirqd/010:16:160
139391350,3ptp4l2998299cyclictest12:05:363
29982993429,3cyclictest41-21ksoftirqd/311:35:003
29982993428,4cyclictest41-21ksoftirqd/312:11:133
29982993428,4cyclictest41-21ksoftirqd/308:25:363
29982993428,4cyclictest41-21ksoftirqd/307:46:243
29981993428,4cyclictest33-21ksoftirqd/212:07:152
29981993428,4cyclictest33-21ksoftirqd/211:31:522
29981993428,4cyclictest33-21ksoftirqd/211:28:592
29981993428,4cyclictest33-21ksoftirqd/211:23:222
29981993428,4cyclictest33-21ksoftirqd/209:01:092
29981993428,4cyclictest33-21ksoftirqd/208:48:002
29981993428,3cyclictest33-21ksoftirqd/211:45:122
29981993427,4cyclictest33-21ksoftirqd/210:37:052
29981993427,4cyclictest33-21ksoftirqd/208:31:162
29980993429,3cyclictest25-21ksoftirqd/109:09:351
29980993428,4cyclictest25-21ksoftirqd/110:59:421
29980993428,4cyclictest25-21ksoftirqd/109:17:571
29980993428,4cyclictest25-21ksoftirqd/109:02:001
29979993428,4cyclictest9-21ksoftirqd/008:53:080
29979993428,4cyclictest9-21ksoftirqd/008:07:030
29979993428,4cyclictest9-21ksoftirqd/007:45:110
29979993427,4cyclictest9-21ksoftirqd/008:38:360
29979993427,4cyclictest9-21ksoftirqd/008:16:060
29982993329,3cyclictest41-21ksoftirqd/310:59:593
29982993328,3cyclictest41-21ksoftirqd/311:50:243
29982993328,3cyclictest41-21ksoftirqd/310:06:053
29982993328,3cyclictest41-21ksoftirqd/309:24:123
29982993328,3cyclictest26531-21cron10:25:003
29982993327,4cyclictest41-21ksoftirqd/311:06:153
29982993327,4cyclictest41-21ksoftirqd/310:15:283
29982993327,4cyclictest41-21ksoftirqd/307:24:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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