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2026-09-23 - 22:01
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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 792 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
29982993327,4cyclictest41-21ksoftirqd/307:14:433
29982993326,4cyclictest23527-21cron08:04:593
29981993328,3cyclictest33-21ksoftirqd/212:15:012
29981993328,3cyclictest33-21ksoftirqd/208:43:112
29981993327,4cyclictest33-21ksoftirqd/210:51:522
29981993327,4cyclictest33-21ksoftirqd/210:18:232
29981993327,4cyclictest33-21ksoftirqd/209:52:552
29981993327,4cyclictest33-21ksoftirqd/209:24:472
29981993327,4cyclictest33-21ksoftirqd/207:53:002
29981993327,4cyclictest33-21ksoftirqd/207:26:492
29981993327,4cyclictest33-21ksoftirqd/207:11:452
29981993326,5cyclictest33-21ksoftirqd/211:40:002
29981993326,4cyclictest33-21ksoftirqd/210:00:062
29980993327,4cyclictest25-21ksoftirqd/112:11:351
29980993327,4cyclictest25-21ksoftirqd/111:50:381
29980993327,4cyclictest25-21ksoftirqd/111:17:161
29980993327,4cyclictest25-21ksoftirqd/109:42:401
29980993327,4cyclictest25-21ksoftirqd/108:42:231
29979993328,3cyclictest9-21ksoftirqd/008:40:370
29979993328,3cyclictest9-21ksoftirqd/007:44:550
29979993328,3cyclictest9-21ksoftirqd/007:32:250
29979993327,4cyclictest9-21ksoftirqd/012:23:370
29979993327,4cyclictest9-21ksoftirqd/011:47:030
29979993327,4cyclictest9-21ksoftirqd/011:00:100
29979993327,4cyclictest9-21ksoftirqd/009:11:020
29979993327,3cyclictest9-21ksoftirqd/011:50:150
29982993229,2cyclictest41-21ksoftirqd/309:15:013
29982993228,3cyclictest41-21ksoftirqd/309:38:423
29982993227,4cyclictest41-21ksoftirqd/311:25:003
29982993227,3cyclictest41-21ksoftirqd/310:02:053
29982993227,3cyclictest41-21ksoftirqd/307:40:403
29982993226,4cyclictest41-21ksoftirqd/309:44:473
29982993226,4cyclictest41-21ksoftirqd/308:41:443
29982993226,4cyclictest41-21ksoftirqd/307:53:103
29981993226,4cyclictest33-21ksoftirqd/212:18:422
29981993226,4cyclictest33-21ksoftirqd/211:08:332
29981993226,4cyclictest33-21ksoftirqd/209:18:412
29981993226,4cyclictest33-21ksoftirqd/208:02:402
2998099323,3cyclictest121rcu_preempt07:20:221
29980993227,3cyclictest25-21ksoftirqd/111:28:431
29980993226,4cyclictest25-21ksoftirqd/110:38:071
29980993226,4cyclictest25-21ksoftirqd/109:58:121
29980993226,4cyclictest25-21ksoftirqd/109:13:081
29979993227,3cyclictest9-21ksoftirqd/011:34:430
29979993227,3cyclictest9-21ksoftirqd/008:01:100
29979993226,4cyclictest9-21ksoftirqd/009:39:100
29979993226,4cyclictest9-21ksoftirqd/009:23:290
29979993226,4cyclictest9-21ksoftirqd/008:34:390
29979993226,4cyclictest9-21ksoftirqd/007:15:040
29979993226,3cyclictest9-21ksoftirqd/010:10:140
29979993226,3cyclictest9-21ksoftirqd/007:11:470
29982993127,3cyclictest41-21ksoftirqd/310:30:003
29982993126,3cyclictest41-21ksoftirqd/312:20:133
29982993126,3cyclictest41-21ksoftirqd/310:12:123
29982993126,3cyclictest18121-21cron11:15:013
29981993125,4cyclictest33-21ksoftirqd/210:22:002
29981993125,4cyclictest33-21ksoftirqd/209:55:172
29981993125,4cyclictest33-21ksoftirqd/209:41:362
29980993126,3cyclictest25-21ksoftirqd/111:20:281
29980993126,3cyclictest25-21ksoftirqd/111:10:331
29980993126,3cyclictest25-21ksoftirqd/107:30:001
29980993125,4cyclictest25-21ksoftirqd/111:45:361
29980993125,4cyclictest25-21ksoftirqd/108:59:281
29980993125,4cyclictest25-21ksoftirqd/107:40:281
29980993125,4cyclictest25-21ksoftirqd/107:14:331
29980993125,3cyclictest25-21ksoftirqd/111:04:591
29980993125,3cyclictest25-21ksoftirqd/110:42:211
29980993124,5cyclictest25-21ksoftirqd/110:28:081
29979993126,3cyclictest9-21ksoftirqd/009:43:070
29979993126,3cyclictest9-21ksoftirqd/007:51:180
29979993125,4cyclictest9-21ksoftirqd/011:41:370
29979993125,4cyclictest9-21ksoftirqd/010:32:420
29979993125,4cyclictest9-21ksoftirqd/010:02:410
29979993124,5cyclictest9-21ksoftirqd/010:29:330
139391310,10ptp4l0-21swapper/309:02:313
29982993026,2cyclictest41-21ksoftirqd/307:15:213
29982993025,3cyclictest41-21ksoftirqd/310:32:133
29982993024,4cyclictest41-21ksoftirqd/312:28:133
2998199307,22cyclictest25897-21kworker/2:007:22:162
29981993025,3cyclictest33-21ksoftirqd/211:58:522
29981993025,3cyclictest33-21ksoftirqd/209:49:222
29981993025,3cyclictest33-21ksoftirqd/208:37:042
29981993025,3cyclictest33-21ksoftirqd/208:29:432
29981993024,4cyclictest33-21ksoftirqd/212:26:042
29981993024,4cyclictest33-21ksoftirqd/212:01:412
29981993024,4cyclictest33-21ksoftirqd/208:59:042
2998199301,27cyclictest25897-21kworker/2:008:20:082
29980993025,3cyclictest25-21ksoftirqd/110:11:521
29980993025,3cyclictest25-21ksoftirqd/108:09:471
29980993024,4cyclictest25-21ksoftirqd/112:18:531
29980993024,4cyclictest25-21ksoftirqd/111:34:451
29980993024,4cyclictest25-21ksoftirqd/110:16:501
29980993024,4cyclictest25-21ksoftirqd/109:25:311
29980993024,4cyclictest25-21ksoftirqd/107:48:111
29980993024,4cyclictest25-21ksoftirqd/107:35:341
29979993025,3cyclictest9-21ksoftirqd/012:25:330
29979993025,3cyclictest9-21ksoftirqd/011:35:120
29979993025,3cyclictest9-21ksoftirqd/009:30:150
29979993025,3cyclictest9-21ksoftirqd/009:28:230
29979993024,4cyclictest9-21ksoftirqd/011:23:200
29979993024,4cyclictest9-21ksoftirqd/008:11:490
29979993023,4cyclictest9-21ksoftirqd/010:36:390
139391300,0ptp4l401ktimersoftd/311:01:093
29982992925,3cyclictest41-21ksoftirqd/307:25:183
29982992924,3cyclictest41-21ksoftirqd/309:18:443
29982992924,3cyclictest41-21ksoftirqd/308:49:253
29982992923,4cyclictest41-21ksoftirqd/309:52:293
2998199297,21cyclictest378-21kworker/2:209:39:492
29981992924,3cyclictest33-21ksoftirqd/210:55:122
29981992924,3cyclictest33-21ksoftirqd/210:14:142
29981992923,4cyclictest33-21ksoftirqd/212:31:582
29981992923,4cyclictest33-21ksoftirqd/211:54:392
29981992923,4cyclictest33-21ksoftirqd/210:45:062
29981992923,4cyclictest33-21ksoftirqd/210:25:022
29981992923,4cyclictest33-21ksoftirqd/207:40:092
29981992923,4cyclictest33-21ksoftirqd/207:38:372
29980992924,3cyclictest25-21ksoftirqd/112:36:021
29980992924,3cyclictest25-21ksoftirqd/108:27:461
29980992923,4cyclictest25-21ksoftirqd/111:38:501
29980992923,4cyclictest25-21ksoftirqd/110:30:331
29980992923,4cyclictest25-21ksoftirqd/108:32:151
29980992923,4cyclictest25-21ksoftirqd/107:50:471
29980992923,3cyclictest25-21ksoftirqd/108:39:291
29979992924,3cyclictest9-21ksoftirqd/012:01:350
29979992924,3cyclictest9-21ksoftirqd/011:29:450
29979992923,4cyclictest9-21ksoftirqd/012:34:440
29979992923,4cyclictest9-21ksoftirqd/010:49:060
139391290,0ptp4l401ktimersoftd/309:58:313
29981992823,3cyclictest33-21ksoftirqd/211:12:222
29981992823,3cyclictest33-21ksoftirqd/209:29:372
2998199282,25cyclictest4170-21kworker/2:109:30:212
2998199282,25cyclictest25897-21kworker/2:008:05:212
29981992822,4cyclictest33-21ksoftirqd/212:39:412
2998199281,26cyclictest4170-21kworker/2:109:14:572
29980992822,4cyclictest25-21ksoftirqd/107:56:571
29979992823,3cyclictest9-21ksoftirqd/008:20:580
29979992822,4cyclictest9-21ksoftirqd/010:20:290
29979992822,4cyclictest9-21ksoftirqd/008:45:130
29979992822,4cyclictest9-21ksoftirqd/008:25:490
29979992822,4cyclictest9-21ksoftirqd/007:29:160
29982992722,3cyclictest41-21ksoftirqd/308:09:543
2998199277,19cyclictest12263-21kworker/2:112:20:242
29981992722,3cyclictest33-21ksoftirqd/211:40:052
29980992722,3cyclictest25-21ksoftirqd/111:08:161
29980992721,4cyclictest25-21ksoftirqd/112:26:241
29979992722,3cyclictest9-21ksoftirqd/010:59:040
29979992722,3cyclictest9-21ksoftirqd/007:57:490
29979992722,3cyclictest9-21ksoftirqd/007:36:420
29979992721,4cyclictest9-21ksoftirqd/009:53:290
29979992721,4cyclictest9-21ksoftirqd/009:18:270
29979992721,3cyclictest9-21ksoftirqd/009:05:030
29982992622,3cyclictest41-21ksoftirqd/308:35:193
29980992619,5cyclictest25-21ksoftirqd/111:57:241
29979992520,3cyclictest9-21ksoftirqd/012:16:430
29979992519,4cyclictest9-21ksoftirqd/011:10:480
139391250,0ptp4l401ktimersoftd/312:31:553
29980992419,3cyclictest25-21ksoftirqd/111:41:591
29980992419,3cyclictest25-21ksoftirqd/108:13:421
29980992418,4cyclictest25-21ksoftirqd/110:22:321
29980992417,5cyclictest25-21ksoftirqd/107:30:131
29979992419,3cyclictest9-21ksoftirqd/012:10:270
29979992419,3cyclictest9-21ksoftirqd/011:55:130
29979992318,3cyclictest9-21ksoftirqd/008:55:160
29980992216,4cyclictest25-21ksoftirqd/108:47:441
29979992217,3cyclictest9-21ksoftirqd/010:54:410
29980992115,4cyclictest25-21ksoftirqd/112:04:211
29980991813,3cyclictest25-21ksoftirqd/109:38:181
29980991611,3cyclictest25-21ksoftirqd/112:20:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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