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2026-03-19 - 22:13
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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 376 highest latencies:
System rackdslot4.osadl.org (updated Thu Mar 19, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591206171,23phc2sys0-21swapper/307:06:223
17532204171,22sleep10-21swapper/107:08:131
17792202169,22sleep20-21swapper/207:08:332
15652199165,23sleep00-21swapper/007:05:460
138591158121,13phc2sys0-21swapper/307:10:013
177982690,1sleep10-21swapper/112:00:161
274612650,3sleep0111rcuc/009:05:010
2193996230,4cyclictest33-21ksoftirqd/211:40:012
2193996229,9cyclictest33-21ksoftirqd/208:10:212
203362620,2sleep10-21swapper/111:00:161
154082610,2sleep20-21swapper/209:45:142
113952590,4sleep2219399cyclictest08:30:252
2193995827,4cyclictest33-21ksoftirqd/211:20:252
2193995826,4cyclictest33-21ksoftirqd/209:30:242
2193995729,7cyclictest33-21ksoftirqd/210:05:182
2193995722,6cyclictest33-21ksoftirqd/212:25:232
2193995722,4cyclictest33-21ksoftirqd/207:55:222
2193995722,4cyclictest33-21ksoftirqd/207:55:222
2193995627,4cyclictest33-21ksoftirqd/210:00:142
2193995627,4cyclictest33-21ksoftirqd/210:00:132
278842550,1sleep30-21swapper/312:20:163
2193995529,4cyclictest33-21ksoftirqd/207:40:152
2193995526,3cyclictest33-21ksoftirqd/211:54:522
2193995525,3cyclictest33-21ksoftirqd/209:05:012
219199550,3cyclictest9319-21taskset09:30:320
2193995427,7cyclictest33-21ksoftirqd/207:10:172
2193995421,4cyclictest33-21ksoftirqd/211:45:012
2193995419,4cyclictest33-21ksoftirqd/211:05:172
219399538,3cyclictest33-21ksoftirqd/208:40:202
219399536,2cyclictest33-21ksoftirqd/207:20:002
2193995325,4cyclictest33-21ksoftirqd/208:00:222
2193995322,4cyclictest33-21ksoftirqd/208:15:112
2193995321,7cyclictest33-21ksoftirqd/211:45:242
2193995321,6cyclictest33-21ksoftirqd/209:10:242
2193995226,7cyclictest33-21ksoftirqd/208:50:132
2193995222,4cyclictest33-21ksoftirqd/211:25:132
2193995222,3cyclictest33-21ksoftirqd/209:25:262
219199520,3cyclictest4332-21runrttasks08:16:300
2193995125,4cyclictest33-21ksoftirqd/208:35:162
2193995121,9cyclictest33-21ksoftirqd/210:30:132
138491510,1ptp4l391rcuc/311:25:303
310762500,2sleep10-21swapper/110:15:221
219399508,8cyclictest33-21ksoftirqd/207:50:192
219399507,6cyclictest33-21ksoftirqd/211:10:242
219399506,7cyclictest33-21ksoftirqd/208:25:132
2193995020,6cyclictest33-21ksoftirqd/209:05:252
2193995017,7cyclictest33-21ksoftirqd/210:40:142
2193995017,6cyclictest33-21ksoftirqd/207:25:282
2193995017,5cyclictest33-21ksoftirqd/210:10:252
138491500,1ptp4l391rcuc/311:55:303
219399497,3cyclictest33-21ksoftirqd/209:20:192
219399497,2cyclictest33-21ksoftirqd/207:50:012
2193994920,9cyclictest33-21ksoftirqd/209:55:112
2193994920,9cyclictest33-21ksoftirqd/209:35:252
2193994916,6cyclictest33-21ksoftirqd/207:30:012
2193994914,6cyclictest33-21ksoftirqd/212:00:192
2193994913,10cyclictest33-21ksoftirqd/212:35:142
2193994912,6cyclictest33-21ksoftirqd/212:05:122
219399487,5cyclictest33-21ksoftirqd/209:15:202
219399485,3cyclictest33-21ksoftirqd/212:20:122
219399477,6cyclictest33-21ksoftirqd/211:00:122
219399474,5cyclictest33-21ksoftirqd/211:55:222
219399474,2cyclictest121rcu_preempt11:15:462
219399473,7cyclictest33-21ksoftirqd/208:05:212
2193994729,9cyclictest33-21ksoftirqd/210:20:132
2193994722,4cyclictest33-21ksoftirqd/212:14:552
2193994716,6cyclictest33-21ksoftirqd/208:55:152
219399464,3cyclictest33-21ksoftirqd/207:35:252
219399463,2cyclictest33-21ksoftirqd/208:45:102
2193994616,6cyclictest33-21ksoftirqd/210:35:172
2193994615,6cyclictest33-21ksoftirqd/212:30:172
219399461,3cyclictest33-21ksoftirqd/211:30:222
219299462,41cyclictest24311-21sh12:15:011
219199469,27cyclictest31676-21seq12:26:280
2191994630,13cyclictest9-21ksoftirqd/011:20:100
2194994531,12cyclictest17271-21cron09:50:003
219399456,2cyclictest33-21ksoftirqd/210:15:242
219399455,2cyclictest33-21ksoftirqd/210:45:132
219399451,3cyclictest33-21ksoftirqd/209:40:182
219399450,5cyclictest33-21ksoftirqd/208:20:232
138491440,0ptp4l401ktimersoftd/308:08:573
219399435,2cyclictest33-21ksoftirqd/207:23:322
2193994338,2cyclictest321ktimersoftd/212:15:202
219399433,7cyclictest33-21ksoftirqd/210:55:122
138491430,0ptp4l401ktimersoftd/310:06:063
219399425,5cyclictest33-21ksoftirqd/209:50:342
2193994228,4cyclictest33-21ksoftirqd/210:52:542
2193994211,6cyclictest33-21ksoftirqd/210:25:252
219199420,3cyclictest1844-21runrttasks11:29:420
219299410,39cyclictest21838-21cron12:10:011
219199418,19cyclictest14187-21seq10:45:410
219199410,3cyclictest29067-21seq12:22:180
138491410,0ptp4l401ktimersoftd/310:57:093
50798400,2rtkit-daemon0-21swapper/109:24:571
2192994035,3cyclictest25-21ksoftirqd/108:55:191
2192993935,2cyclictest25-21ksoftirqd/111:20:001
2192993934,3cyclictest25-21ksoftirqd/109:40:001
2192993934,2cyclictest25-21ksoftirqd/108:24:591
219199390,4cyclictest24391-21runrttasks07:52:320
2194993824,12cyclictest41-21ksoftirqd/312:15:313
2192993832,3cyclictest25-21ksoftirqd/111:29:591
2192993832,3cyclictest25-21ksoftirqd/110:15:001
219199384,21cyclictest2183-21seq09:19:200
2191993831,4cyclictest12075-21cron10:45:000
2192993732,3cyclictest25-21ksoftirqd/111:40:001
2192993732,3cyclictest25-21ksoftirqd/109:20:001
2192993731,3cyclictest25-21ksoftirqd/110:30:011
219199376,19cyclictest1303-21runrttasks08:12:070
219199371,3cyclictest0-21swapper/008:35:210
219199371,2cyclictest0-21swapper/007:11:470
219199370,2cyclictest11707-21seq11:46:200
2194993630,4cyclictest41-21ksoftirqd/310:31:413
2194993624,10cyclictest41-21ksoftirqd/312:02:113
2192993632,3cyclictest25-21ksoftirqd/108:55:011
2192993632,2cyclictest25-21ksoftirqd/108:45:011
2192993631,2cyclictest25-21ksoftirqd/107:20:171
2192993631,2cyclictest25-21ksoftirqd/107:10:191
2192993630,3cyclictest25-21ksoftirqd/110:49:591
2192993624,9cyclictest25-21ksoftirqd/108:15:231
2191993631,3cyclictest9-21ksoftirqd/010:17:140
2191993630,3cyclictest492-21irqrtprio12:30:160
2191993629,4cyclictest9-21ksoftirqd/012:04:120
219199360,3cyclictest6795-21seq10:30:370
219199360,3cyclictest21896-21runrttasks08:53:010
219199360,2cyclictest16626-21seq11:56:260
2194993530,3cyclictest41-21ksoftirqd/307:32:253
2194993529,4cyclictest41-21ksoftirqd/307:39:393
2194993520,12cyclictest41-21ksoftirqd/307:47:363
2192993531,3cyclictest25-21ksoftirqd/110:55:171
2192993530,3cyclictest25-21ksoftirqd/110:30:191
2192993530,3cyclictest25-21ksoftirqd/109:50:001
2192993530,3cyclictest25-21ksoftirqd/109:44:591
2192993530,3cyclictest25-21ksoftirqd/108:29:591
2192993529,3cyclictest25-21ksoftirqd/111:05:181
2191993529,4cyclictest9-21ksoftirqd/012:37:060
2191993529,4cyclictest9-21ksoftirqd/012:15:400
2191993529,4cyclictest9-21ksoftirqd/009:26:180
2191993519,13cyclictest9-21ksoftirqd/011:15:000
219199350,3cyclictest9265-21runrttasks08:26:300
219199350,3cyclictest29373-21seq10:11:450
2194993429,3cyclictest41-21ksoftirqd/307:40:113
2194993428,4cyclictest41-21ksoftirqd/310:21:263
2194993428,4cyclictest41-21ksoftirqd/310:02:123
2194993428,4cyclictest41-21ksoftirqd/310:02:123
2194993428,4cyclictest41-21ksoftirqd/308:52:313
2194993414,3cyclictest29801-21sed09:10:003
2194993413,3cyclictest30062-21sed11:20:133
219299344,3cyclictest121rcu_preempt11:50:121
2192993429,3cyclictest25-21ksoftirqd/112:25:141
2192993429,3cyclictest25-21ksoftirqd/111:23:171
2192993429,3cyclictest25-21ksoftirqd/110:50:251
2192993428,4cyclictest25-21ksoftirqd/111:46:121
2192993428,4cyclictest25-21ksoftirqd/109:32:251
2192993428,3cyclictest25-21ksoftirqd/112:15:171
2192993428,3cyclictest25-21ksoftirqd/110:40:111
2191993429,3cyclictest9-21ksoftirqd/009:49:010
2191993429,3cyclictest9-21ksoftirqd/007:23:480
2191993429,3cyclictest13855-21nfs4_client09:40:220
2191993428,4cyclictest9-21ksoftirqd/012:06:090
2191993428,4cyclictest9-21ksoftirqd/011:51:180
2191993428,4cyclictest9-21ksoftirqd/011:36:130
2191993428,4cyclictest9-21ksoftirqd/011:32:350
2191993428,4cyclictest9-21ksoftirqd/010:56:380
2191993428,4cyclictest9-21ksoftirqd/010:22:200
2191993428,4cyclictest9-21ksoftirqd/009:53:380
219199340,3cyclictest26835-21seq07:56:410
219199340,3cyclictest26835-21seq07:56:410
219199340,3cyclictest1319-21snmpd07:45:290
219499339,4cyclictest32553-21cpuspeed_turbos09:15:133
2194993327,4cyclictest41-21ksoftirqd/312:08:223
2194993327,3cyclictest41-21ksoftirqd/307:29:133
2194993326,5cyclictest41-21ksoftirqd/309:03:473
2194993311,4cyclictest32269-21/usr/sbin/munin08:10:203
219499331,12cyclictest2932-21df_abs09:20:153
2192993329,2cyclictest25-21ksoftirqd/108:05:181
2192993329,2cyclictest25-21ksoftirqd/107:15:141
2192993328,3cyclictest25-21ksoftirqd/111:10:201
2192993328,3cyclictest25-21ksoftirqd/107:45:001
2192993327,4cyclictest25-21ksoftirqd/109:08:101
2192993327,4cyclictest25-21ksoftirqd/109:03:011
2192993327,4cyclictest25-21ksoftirqd/107:58:031
2192993327,4cyclictest25-21ksoftirqd/107:58:021
2192993327,3cyclictest25-21ksoftirqd/109:55:011
219299332,3cyclictest25-21ksoftirqd/112:25:011
219299331,6cyclictest25-21ksoftirqd/107:40:001
219299331,5cyclictest25-21ksoftirqd/112:35:241
2191993327,4cyclictest9-21ksoftirqd/009:09:260
2191993327,4cyclictest9-21ksoftirqd/008:21:460
2191993327,4cyclictest9-21ksoftirqd/007:28:370
2191993327,4cyclictest9-21ksoftirqd/007:18:580
219199330,4cyclictest31970-21runrttasks08:09:160
2194993227,3cyclictest41-21ksoftirqd/312:29:473
2194993227,3cyclictest41-21ksoftirqd/310:41:473
2194993227,3cyclictest41-21ksoftirqd/310:15:133
2194993227,3cyclictest41-21ksoftirqd/309:42:463
2194993226,4cyclictest41-21ksoftirqd/311:40:323
2194993226,4cyclictest41-21ksoftirqd/311:36:553
2194993226,4cyclictest41-21ksoftirqd/308:59:173
2194993213,2cyclictest7106-21latency_hist08:25:003
2194993211,3cyclictest22371-21/usr/sbin/munin07:50:193
2194993211,3cyclictest12471-21expr08:35:143
2194993210,4cyclictest22199-21cat12:10:123
2192993228,3cyclictest25-21ksoftirqd/108:45:181
2192993228,2cyclictest25-21ksoftirqd/111:55:181
2192993228,2cyclictest25-21ksoftirqd/108:35:001
2192993227,3cyclictest25-21ksoftirqd/110:24:591
2192993227,3cyclictest25-21ksoftirqd/110:00:141
2192993227,3cyclictest25-21ksoftirqd/110:00:131
2192993227,3cyclictest25-21ksoftirqd/108:40:011
2192993227,3cyclictest25-21ksoftirqd/107:30:001
2192993226,4cyclictest25-21ksoftirqd/107:50:181
2192993226,4cyclictest25-21ksoftirqd/107:49:041
219299321,5cyclictest25-21ksoftirqd/110:35:221
2191993227,3cyclictest9-21ksoftirqd/010:25:090
2191993227,3cyclictest9-21ksoftirqd/010:01:080
2191993227,3cyclictest9-21ksoftirqd/010:01:080
2191993227,3cyclictest9-21ksoftirqd/009:55:090
2191993227,3cyclictest9-21ksoftirqd/009:21:210
2191993227,3cyclictest9-21ksoftirqd/008:59:490
2191993227,3cyclictest24381-21turbostat11:10:000
2191993226,4cyclictest9-21ksoftirqd/010:39:040
2191993226,4cyclictest9-21ksoftirqd/010:07:150
2191993226,4cyclictest9-21ksoftirqd/007:36:540
2191993213,16cyclictest10030-21gpgconf09:35:010
219199320,4cyclictest17968-21interrupts07:40:160
138491320,8ptp4l0-21swapper/311:07:273
219499319,4cyclictest2315-21gnome-shell08:40:593
2194993127,2cyclictest138491ptp4l09:38:013
2194993126,3cyclictest41-21ksoftirqd/310:48:493
2194993126,3cyclictest41-21ksoftirqd/309:58:513
2194993126,3cyclictest41-21ksoftirqd/309:29:543
2194993126,3cyclictest41-21ksoftirqd/308:29:563
2194993126,3cyclictest41-21ksoftirqd/308:19:353
2194993125,4cyclictest41-21ksoftirqd/311:31:143
2194993125,4cyclictest41-21ksoftirqd/309:52:023
2194993125,3cyclictest41-21ksoftirqd/307:22:253
2194993113,3cyclictest27866-21ps11:15:183
2194993110,3cyclictest1128-21processes12:30:213
2192993127,3cyclictest25-21ksoftirqd/111:35:001
2192993125,4cyclictest25-21ksoftirqd/112:30:051
219299310,4cyclictest25-21ksoftirqd/107:30:251
219199318,20cyclictest30222-21expr09:10:110
219199317,22cyclictest15626-21cat08:40:160
2191993126,3cyclictest9-21ksoftirqd/008:49:440
2191993125,4cyclictest9-21ksoftirqd/008:00:530
2191993125,3cyclictest9-21ksoftirqd/010:50:070
2191993124,4cyclictest9-21ksoftirqd/008:30:070
2194993024,4cyclictest41-21ksoftirqd/311:10:493
2194993024,4cyclictest41-21ksoftirqd/309:11:583
2194993024,4cyclictest41-21ksoftirqd/308:31:583
2194993023,5cyclictest41-21ksoftirqd/310:14:033
219499300,4cyclictest5935-21needreboot07:15:223
2192993025,3cyclictest25-21ksoftirqd/111:40:101
2192993025,3cyclictest25-21ksoftirqd/110:05:121
2192993025,3cyclictest25-21ksoftirqd/109:55:171
2192993025,3cyclictest25-21ksoftirqd/109:30:001
2192993024,4cyclictest25-21ksoftirqd/108:03:481
219499296,4cyclictest0-21swapper/311:50:143
2194992924,3cyclictest41-21ksoftirqd/310:39:313
2194992923,4cyclictest41-21ksoftirqd/310:26:243
219299290,3cyclictest121rcu_preempt08:10:171
219199297,19cyclictest7385-21cpuspeed11:40:110
219199290,3cyclictest12211-21cp07:30:010
219499283,10cyclictest3639-21proc_pri12:35:213
2194992823,3cyclictest41-21ksoftirqd/308:47:173
2194992823,3cyclictest41-21ksoftirqd/308:00:463
2191992823,3cyclictest9-21ksoftirqd/012:13:060
219499277,6cyclictest9279-21unixbench_singl09:30:253
2194992722,3cyclictest41-21ksoftirqd/310:54:483
2194992721,4cyclictest41-21ksoftirqd/311:47:103
219299270,2cyclictest121rcu_preempt09:10:131
2191992722,3cyclictest9-21ksoftirqd/011:00:090
2191992721,4cyclictest9-21ksoftirqd/011:15:380
2194992620,4cyclictest41-21ksoftirqd/307:58:133
2194992620,4cyclictest41-21ksoftirqd/307:58:123
2194992520,3cyclictest41-21ksoftirqd/311:01:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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