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2026-04-14 - 20:54
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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 rackdslot2.osadl.org (updated Tue Apr 14, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591238171,23phc2sys0-21swapper/307:09:273
69432205171,22sleep10-21swapper/107:06:061
70262204170,23sleep00-21swapper/007:07:100
51272203170,22sleep20-21swapper/207:05:112
7544996713,19cyclictest12143-21date09:34:593
272812580,7sleep2754399cyclictest07:50:162
29702550,2sleep20-21swapper/208:05:242
7543995333,17cyclictest33-21ksoftirqd/211:20:002
7543994611,21cyclictest23483-21smartctl08:50:162
754399451,3cyclictest217-21systemd-journal07:49:222
7544994437,4cyclictest26156-21awk12:20:013
754399431,31cyclictest15111-21fschecks_time09:40:182
139291420,0ptp4l401ktimersoftd/311:12:123
139291420,0ptp4l401ktimersoftd/310:00:223
139291420,0ptp4l401ktimersoftd/310:00:213
7543994133,5cyclictest33-21ksoftirqd/212:20:002
7543994127,12cyclictest10645-21cron10:40:002
139291410,0ptp4l401ktimersoftd/309:10:193
7544994034,4cyclictest41-21ksoftirqd/310:55:063
7543994035,3cyclictest33-21ksoftirqd/209:55:492
7544993933,4cyclictest41-21ksoftirqd/311:18:493
7541993933,4cyclictest9-21ksoftirqd/010:38:300
7544993832,4cyclictest41-21ksoftirqd/308:06:263
754499380,3cyclictest5540-21cat08:10:273
7543993832,4cyclictest33-21ksoftirqd/211:07:572
7543993832,4cyclictest33-21ksoftirqd/210:57:022
7543993831,5cyclictest33-21ksoftirqd/212:01:292
7542993832,4cyclictest25-21ksoftirqd/109:36:291
7544993732,3cyclictest41-21ksoftirqd/311:49:133
7544993731,4cyclictest41-21ksoftirqd/311:38:113
7544993731,4cyclictest41-21ksoftirqd/310:51:083
7543993733,3cyclictest33-21ksoftirqd/211:04:092
7543993732,3cyclictest33-21ksoftirqd/211:29:422
7543993731,4cyclictest33-21ksoftirqd/210:45:112
7543993731,4cyclictest33-21ksoftirqd/208:26:382
754399371,33cyclictest15569-21wc11:55:212
7542993731,4cyclictest25-21ksoftirqd/111:57:501
7541993732,3cyclictest9-21ksoftirqd/008:15:120
7541993731,4cyclictest9-21ksoftirqd/011:57:020
7541993731,4cyclictest9-21ksoftirqd/009:26:290
7544993631,3cyclictest41-21ksoftirqd/312:25:113
7544993631,3cyclictest41-21ksoftirqd/311:22:073
7544993631,3cyclictest41-21ksoftirqd/310:43:123
7544993631,3cyclictest41-21ksoftirqd/308:24:033
7544993631,3cyclictest41-21ksoftirqd/307:23:543
7544993630,4cyclictest41-21ksoftirqd/312:38:283
7544993630,4cyclictest41-21ksoftirqd/312:14:063
7544993630,4cyclictest41-21ksoftirqd/310:39:343
7544993630,4cyclictest41-21ksoftirqd/309:04:133
7544993630,4cyclictest41-21ksoftirqd/307:55:423
7544993630,4cyclictest41-21ksoftirqd/307:55:413
7544993630,4cyclictest41-21ksoftirqd/307:41:423
7543993631,3cyclictest33-21ksoftirqd/212:27:082
7543993631,3cyclictest33-21ksoftirqd/211:13:592
7543993631,3cyclictest33-21ksoftirqd/210:42:202
7543993631,3cyclictest33-21ksoftirqd/210:30:122
7543993631,3cyclictest33-21ksoftirqd/209:29:012
7543993630,4cyclictest33-21ksoftirqd/211:53:392
7543993630,4cyclictest33-21ksoftirqd/211:21:452
7543993630,4cyclictest33-21ksoftirqd/210:24:042
7543993630,4cyclictest33-21ksoftirqd/209:35:552
7543993630,4cyclictest33-21ksoftirqd/208:21:372
7543993630,4cyclictest33-21ksoftirqd/207:24:362
7543993613,20cyclictest27111-21seq08:55:372
7542993630,4cyclictest25-21ksoftirqd/110:55:321
7542993629,4cyclictest25-21ksoftirqd/108:20:041
7541993631,3cyclictest9-21ksoftirqd/010:00:150
7541993631,3cyclictest9-21ksoftirqd/010:00:140
7541993630,4cyclictest9-21ksoftirqd/011:27:210
7541993630,4cyclictest9-21ksoftirqd/010:17:370
7541993630,4cyclictest9-21ksoftirqd/008:06:390
7541993630,4cyclictest9-21ksoftirqd/007:56:000
7541993630,4cyclictest9-21ksoftirqd/007:56:000
7541993630,4cyclictest9-21ksoftirqd/007:20:120
7541993629,5cyclictest9-21ksoftirqd/008:49:100
7544993530,3cyclictest41-21ksoftirqd/312:08:563
7544993530,3cyclictest41-21ksoftirqd/309:54:533
7544993530,3cyclictest41-21ksoftirqd/307:27:033
7544993530,3cyclictest41-21ksoftirqd/307:13:183
7544993530,3cyclictest41-21ksoftirqd/307:13:173
7544993529,4cyclictest41-21ksoftirqd/308:56:003
7544993529,4cyclictest41-21ksoftirqd/308:17:173
754499350,3cyclictest13794-21cat09:35:273
7543993530,3cyclictest33-21ksoftirqd/212:37:532
7543993530,3cyclictest33-21ksoftirqd/210:10:122
7543993530,3cyclictest33-21ksoftirqd/208:38:342
7543993530,3cyclictest33-21ksoftirqd/208:38:342
7543993530,3cyclictest15638-21uname07:25:192
7543993529,4cyclictest33-21ksoftirqd/210:09:482
7543993529,4cyclictest33-21ksoftirqd/209:01:452
7543993514,18cyclictest680-21fschecks_count09:10:152
7542993529,4cyclictest3499-21cron10:25:001
7542993529,4cyclictest25-21ksoftirqd/112:21:381
7542993529,4cyclictest25-21ksoftirqd/111:32:181
7542993529,4cyclictest25-21ksoftirqd/110:49:021
7542993529,4cyclictest25-21ksoftirqd/110:08:341
7542993529,4cyclictest25-21ksoftirqd/109:21:371
7541993530,3cyclictest9-21ksoftirqd/011:35:130
7541993530,3cyclictest9-21ksoftirqd/010:45:460
7541993529,4cyclictest9-21ksoftirqd/012:27:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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