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2026-07-07 - 23:47
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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 highest latencies:
System rackdslot4.osadl.org (updated Tue Jul 07, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286642231167,21sleep10-21swapper/107:09:131
285532205172,21sleep20-21swapper/207:07:532
138591201167,23phc2sys0-21swapper/307:06:583
285062199165,23sleep00-21swapper/007:07:140
138491710,0ptp4l391rcuc/312:15:233
29018996233,4cyclictest33-21ksoftirqd/208:20:152
29018996133,3cyclictest33-21ksoftirqd/211:10:132
29018996131,3cyclictest33-21ksoftirqd/211:20:162
29018996130,3cyclictest33-21ksoftirqd/209:01:162
29019996028,7cyclictest41-21ksoftirqd/308:25:003
29019996027,4cyclictest41-21ksoftirqd/310:20:143
29018996032,3cyclictest33-21ksoftirqd/210:10:142
29018996032,3cyclictest33-21ksoftirqd/209:10:142
29018996032,3cyclictest33-21ksoftirqd/207:10:142
29018996031,4cyclictest33-21ksoftirqd/208:35:122
29018996030,4cyclictest33-21ksoftirqd/207:15:252
29018996030,3cyclictest33-21ksoftirqd/210:30:232
29018996029,4cyclictest33-21ksoftirqd/207:55:002
29018996028,4cyclictest33-21ksoftirqd/210:50:142
29018995927,7cyclictest33-21ksoftirqd/207:25:182
34572580,1sleep20-21swapper/211:40:242
29018995830,3cyclictest33-21ksoftirqd/212:40:012
29018995828,3cyclictest33-21ksoftirqd/210:25:262
29018995826,4cyclictest33-21ksoftirqd/210:40:122
29018995824,4cyclictest33-21ksoftirqd/208:35:002
29018995817,5cyclictest33-21ksoftirqd/208:45:282
29019995724,4cyclictest41-21ksoftirqd/308:45:243
29018995731,3cyclictest33-21ksoftirqd/207:35:272
29018995729,3cyclictest33-21ksoftirqd/207:40:242
29018995727,3cyclictest33-21ksoftirqd/212:25:142
29018995727,3cyclictest33-21ksoftirqd/212:20:142
29018995727,3cyclictest33-21ksoftirqd/212:20:142
29018995726,3cyclictest33-21ksoftirqd/207:25:012
29019995626,3cyclictest41-21ksoftirqd/309:05:003
29018995628,3cyclictest33-21ksoftirqd/210:00:152
29018995627,4cyclictest33-21ksoftirqd/209:30:132
29018995627,4cyclictest33-21ksoftirqd/209:30:132
29018995623,8cyclictest33-21ksoftirqd/208:05:002
152222560,4sleep30-21swapper/308:50:243
29019995527,3cyclictest41-21ksoftirqd/307:26:113
29019995525,4cyclictest41-21ksoftirqd/312:23:353
29019995525,4cyclictest41-21ksoftirqd/312:23:353
29019995525,3cyclictest41-21ksoftirqd/311:40:123
29019995522,4cyclictest41-21ksoftirqd/309:05:243
29018995525,4cyclictest33-21ksoftirqd/212:00:142
29018995522,3cyclictest33-21ksoftirqd/208:15:142
29019995424,3cyclictest41-21ksoftirqd/307:24:083
29019995423,3cyclictest41-21ksoftirqd/310:25:213
29019995422,3cyclictest41-21ksoftirqd/311:35:003
29019995422,3cyclictest41-21ksoftirqd/311:35:003
29018995427,3cyclictest33-21ksoftirqd/209:55:162
29018995426,3cyclictest33-21ksoftirqd/208:25:162
29018995422,3cyclictest33-21ksoftirqd/212:05:242
29019995324,4cyclictest41-21ksoftirqd/308:00:273
29019995322,4cyclictest41-21ksoftirqd/309:10:183
29019995321,4cyclictest41-21ksoftirqd/312:00:253
29018995327,3cyclictest33-21ksoftirqd/210:45:142
29018995326,3cyclictest33-21ksoftirqd/210:55:172
29018995325,3cyclictest33-21ksoftirqd/210:15:212
29018995322,3cyclictest33-21ksoftirqd/211:30:282
29018995322,3cyclictest33-21ksoftirqd/211:30:272
29018995315,5cyclictest33-21ksoftirqd/211:35:252
29019995227,4cyclictest41-21ksoftirqd/308:55:203
29019995225,3cyclictest41-21ksoftirqd/312:30:163
29019995222,3cyclictest41-21ksoftirqd/311:37:303
29019995222,3cyclictest41-21ksoftirqd/310:35:133
29019995222,3cyclictest41-21ksoftirqd/307:35:273
29019995221,4cyclictest41-21ksoftirqd/312:05:143
29018995235,4cyclictest33-21ksoftirqd/209:30:002
29018995224,3cyclictest33-21ksoftirqd/211:55:142
29018995223,3cyclictest33-21ksoftirqd/212:30:192
29018995223,3cyclictest33-21ksoftirqd/211:50:282
29018995222,3cyclictest33-21ksoftirqd/211:15:192
29019995121,3cyclictest41-21ksoftirqd/311:15:273
29019995118,4cyclictest41-21ksoftirqd/310:55:153
29018995124,3cyclictest33-21ksoftirqd/208:50:242
29018995122,4cyclictest33-21ksoftirqd/208:44:282
29018995122,4cyclictest33-21ksoftirqd/207:59:222
29018995119,5cyclictest33-21ksoftirqd/207:45:172
171582510,2sleep20-21swapper/212:10:132
29019995022,3cyclictest41-21ksoftirqd/311:20:253
29019995020,4cyclictest41-21ksoftirqd/309:55:253
29019995020,3cyclictest41-21ksoftirqd/307:45:233
29019995016,3cyclictest41-21ksoftirqd/312:10:233
29018995020,4cyclictest33-21ksoftirqd/212:15:152
29018995019,3cyclictest33-21ksoftirqd/209:05:192
29018995018,4cyclictest33-21ksoftirqd/208:10:142
29018995016,3cyclictest33-21ksoftirqd/209:50:172
29019994933,4cyclictest41-21ksoftirqd/308:05:133
29019994921,3cyclictest41-21ksoftirqd/308:10:263
29019994918,3cyclictest41-21ksoftirqd/309:25:273
29019994918,3cyclictest41-21ksoftirqd/308:35:153
29018994920,3cyclictest33-21ksoftirqd/209:20:152
29018994916,4cyclictest33-21ksoftirqd/207:30:222
1385914935,7phc2sys0-21swapper/307:10:023
2901999489,4cyclictest41-21ksoftirqd/312:25:153
29019994819,3cyclictest41-21ksoftirqd/310:30:143
29019994818,3cyclictest41-21ksoftirqd/312:35:273
29019994816,4cyclictest41-21ksoftirqd/311:55:133
29018994834,3cyclictest33-21ksoftirqd/208:05:142
29018994815,4cyclictest33-21ksoftirqd/211:00:262
29016994811,26cyclictest20940-21seq09:03:480
2901999479,5cyclictest41-21ksoftirqd/307:59:083
29019994741,4cyclictest18858-21cron07:55:013
29019994734,4cyclictest41-21ksoftirqd/309:30:263
29019994734,4cyclictest41-21ksoftirqd/309:30:253
29019994724,2cyclictest41-21ksoftirqd/307:30:253
29019994718,3cyclictest41-21ksoftirqd/308:30:183
29019994714,4cyclictest41-21ksoftirqd/309:35:163
29018994731,4cyclictest33-21ksoftirqd/209:40:132
29019994631,4cyclictest41-21ksoftirqd/311:50:173
29019994620,3cyclictest41-21ksoftirqd/310:10:263
29019994616,3cyclictest41-21ksoftirqd/307:20:003
29019994615,3cyclictest41-21ksoftirqd/310:45:013
29019994615,3cyclictest41-21ksoftirqd/310:40:173
29019994610,4cyclictest41-21ksoftirqd/311:07:223
29018994632,4cyclictest33-21ksoftirqd/209:49:592
29018994631,3cyclictest33-21ksoftirqd/211:45:122
29019994531,4cyclictest41-21ksoftirqd/310:15:153
29019994530,4cyclictest41-21ksoftirqd/311:10:153
29019994517,9cyclictest41-21ksoftirqd/311:25:133
29019994514,3cyclictest121rcu_preempt09:45:203
29018994530,4cyclictest33-21ksoftirqd/209:35:262
29018994521,4cyclictest33-21ksoftirqd/211:05:202
29017994515,28cyclictest0-21swapper/111:05:231
29019994431,4cyclictest41-21ksoftirqd/310:05:193
29019994415,3cyclictest41-21ksoftirqd/310:02:423
29018994428,4cyclictest33-21ksoftirqd/210:35:232
29019994338,3cyclictest4950-21fschecks_count11:45:153
29018994330,3cyclictest33-21ksoftirqd/210:20:132
29019994227,6cyclictest41-21ksoftirqd/309:15:133
29019994225,7cyclictest41-21ksoftirqd/308:25:243
29018994230,3cyclictest33-21ksoftirqd/208:55:222
29018994228,3cyclictest33-21ksoftirqd/211:25:182
29016994234,5cyclictest8968-21cron07:35:010
2872524232,4sleep10-21swapper/107:10:021
138491420,0ptp4l401ktimersoftd/308:16:103
2901999415,6cyclictest121rcu_preempt09:43:293
29019994127,4cyclictest41-21ksoftirqd/307:40:173
29019994127,3cyclictest41-21ksoftirqd/310:51:333
29019994112,3cyclictest121rcu_preempt09:20:223
29018994128,3cyclictest33-21ksoftirqd/210:05:012
29018994035,3cyclictest33-21ksoftirqd/209:20:002
2901999394,3cyclictest121rcu_preempt09:51:153
29019993934,3cyclictest41-21ksoftirqd/311:05:003
29019993926,4cyclictest41-21ksoftirqd/308:42:053
29016993933,4cyclictest3869-21wc07:25:010
29017993730,4cyclictest25-21ksoftirqd/112:31:101
2901799369,26cyclictest0-21swapper/111:40:331
29017993630,4cyclictest25-21ksoftirqd/109:33:341
29017993630,4cyclictest25-21ksoftirqd/109:33:341
29017993630,4cyclictest25-21ksoftirqd/109:08:301
29017993629,5cyclictest25-21ksoftirqd/109:15:001
29016993631,3cyclictest9-21ksoftirqd/007:55:000
29016993630,4cyclictest9-21ksoftirqd/010:19:380
29016993630,4cyclictest9-21ksoftirqd/009:21:220
29017993529,4cyclictest25-21ksoftirqd/111:26:391
29017993529,4cyclictest25-21ksoftirqd/111:14:311
29017993529,4cyclictest25-21ksoftirqd/110:27:301
29017993529,4cyclictest25-21ksoftirqd/109:29:371
29017993529,4cyclictest25-21ksoftirqd/108:21:251
29017993529,4cyclictest25-21ksoftirqd/107:21:031
29017993529,3cyclictest6211-21cron08:35:001
29016993529,4cyclictest9-21ksoftirqd/012:36:580
29016993529,4cyclictest9-21ksoftirqd/010:10:110
29016993529,4cyclictest9-21ksoftirqd/009:59:130
29016993529,4cyclictest9-21ksoftirqd/008:26:420
29016993529,4cyclictest9-21ksoftirqd/008:00:380
29016993527,6cyclictest9-21ksoftirqd/007:57:410
29017993429,3cyclictest25-21ksoftirqd/111:58:391
29017993429,3cyclictest25-21ksoftirqd/109:05:001
29017993428,4cyclictest25-21ksoftirqd/108:56:321
29017993428,4cyclictest25-21ksoftirqd/107:58:511
29017993428,4cyclictest25-21ksoftirqd/107:51:171
29017993428,3cyclictest25-21ksoftirqd/112:05:371
29016993429,3cyclictest9-21ksoftirqd/011:19:240
29016993428,4cyclictest9-21ksoftirqd/011:58:350
29016993428,4cyclictest9-21ksoftirqd/010:58:350
29016993428,4cyclictest9-21ksoftirqd/010:41:250
29016993428,4cyclictest9-21ksoftirqd/007:42:210
29016993412,19cyclictest28458-21date12:30:260
29016993411,20cyclictest19341-21latency_hist11:10:000
29017993327,4cyclictest25-21ksoftirqd/111:19:091
29017993327,4cyclictest25-21ksoftirqd/109:56:401
29017993327,4cyclictest25-21ksoftirqd/108:50:341
29017993327,4cyclictest25-21ksoftirqd/108:05:441
29017993326,4cyclictest25-21ksoftirqd/112:10:361
29017993326,4cyclictest25-21ksoftirqd/108:49:461
29016993328,3cyclictest9-21ksoftirqd/012:21:420
29016993328,3cyclictest9-21ksoftirqd/012:21:420
29016993328,3cyclictest9-21ksoftirqd/010:25:200
29016993327,4cyclictest9-21ksoftirqd/012:14:320
29016993327,4cyclictest9-21ksoftirqd/011:42:380
29016993327,4cyclictest9-21ksoftirqd/011:37:490
29016993327,4cyclictest9-21ksoftirqd/011:01:590
29016993327,4cyclictest9-21ksoftirqd/009:51:260
29016993327,4cyclictest9-21ksoftirqd/008:09:080
29016993327,4cyclictest9-21ksoftirqd/007:28:410
29016993327,4cyclictest9-21ksoftirqd/007:16:050
29016993312,18cyclictest14751-21sed12:05:140
29016993311,20cyclictest25732-21wc12:25:240
29017993227,3cyclictest25-21ksoftirqd/108:04:481
29017993226,4cyclictest25-21ksoftirqd/112:01:571
29017993226,4cyclictest25-21ksoftirqd/111:49:331
29017993226,4cyclictest25-21ksoftirqd/110:24:051
29017993226,4cyclictest25-21ksoftirqd/110:06:471
29017993226,4cyclictest25-21ksoftirqd/109:35:511
29017993226,4cyclictest25-21ksoftirqd/109:23:071
29017993226,4cyclictest25-21ksoftirqd/108:28:471
29016993227,3cyclictest9-21ksoftirqd/011:24:230
29016993226,4cyclictest9-21ksoftirqd/011:33:360
29016993226,4cyclictest9-21ksoftirqd/011:33:360
29016993226,4cyclictest9-21ksoftirqd/009:37:500
29016993226,4cyclictest9-21ksoftirqd/008:52:490
29016993226,4cyclictest9-21ksoftirqd/008:39:450
29016993226,4cyclictest9-21ksoftirqd/008:31:360
29016993211,19cyclictest23095-21timedrift09:05:260
29016993211,19cyclictest14402-21cat07:45:150
29017993126,3cyclictest25-21ksoftirqd/109:43:201
29017993126,3cyclictest25-21ksoftirqd/108:40:001
29017993126,3cyclictest1286-21cron07:20:001
29017993125,4cyclictest25-21ksoftirqd/112:24:521
29017993125,4cyclictest25-21ksoftirqd/112:24:521
29017993125,4cyclictest25-21ksoftirqd/110:01:301
29016993126,3cyclictest9-21ksoftirqd/010:36:410
29016993126,3cyclictest9-21ksoftirqd/009:10:120
29016993126,3cyclictest9-21ksoftirqd/008:15:110
29016993125,4cyclictest9-21ksoftirqd/012:18:130
29016993125,4cyclictest9-21ksoftirqd/011:28:420
29016993125,4cyclictest9-21ksoftirqd/010:24:200
29016993125,4cyclictest9-21ksoftirqd/008:43:140
29016993110,19cyclictest12302-21cut08:45:190
29017993025,3cyclictest25-21ksoftirqd/111:00:511
29017993025,3cyclictest25-21ksoftirqd/108:41:491
29017993024,4cyclictest25-21ksoftirqd/111:38:541
29017993024,4cyclictest25-21ksoftirqd/110:57:421
29017993024,4cyclictest25-21ksoftirqd/110:46:111
29016993025,3cyclictest9-21ksoftirqd/009:46:000
29016993025,3cyclictest9-21ksoftirqd/008:12:150
29016993024,4cyclictest9-21ksoftirqd/012:02:560
29016993024,4cyclictest9-21ksoftirqd/010:33:420
29017992924,3cyclictest25-21ksoftirqd/110:45:011
29017992924,3cyclictest25-21ksoftirqd/108:15:471
29017992924,3cyclictest25-21ksoftirqd/107:39:531
29017992923,4cyclictest25-21ksoftirqd/109:51:151
29017992923,4cyclictest25-21ksoftirqd/109:49:421
29017992922,4cyclictest25-21ksoftirqd/111:20:211
2901699299,3cyclictest9576-21expr07:35:150
2901699298,3cyclictest26980-21expr09:15:140
29016992924,3cyclictest9-21ksoftirqd/011:51:240
29016992923,4cyclictest9-21ksoftirqd/011:45:350
29016992923,4cyclictest9-21ksoftirqd/011:10:530
29016992923,4cyclictest9-21ksoftirqd/010:51:030
29016992923,4cyclictest9-21ksoftirqd/010:09:150
29016992923,4cyclictest9-21ksoftirqd/009:31:520
29016992923,4cyclictest9-21ksoftirqd/009:31:520
29016992910,16cyclictest17732-21processes08:55:230
29017992823,3cyclictest25-21ksoftirqd/112:28:291
29017992823,3cyclictest25-21ksoftirqd/110:13:291
29017992822,4cyclictest25-21ksoftirqd/107:30:261
29017992822,4cyclictest25-21ksoftirqd/107:26:411
29016992823,3cyclictest9-21ksoftirqd/010:47:020
29016992823,3cyclictest9-21ksoftirqd/010:04:150
29016992823,3cyclictest9-21ksoftirqd/009:42:170
29016992822,4cyclictest9-21ksoftirqd/008:21:000
29017992722,3cyclictest25-21ksoftirqd/110:34:451
29017992722,3cyclictest25-21ksoftirqd/107:46:011
29017992721,4cyclictest25-21ksoftirqd/110:39:211
29017992721,4cyclictest25-21ksoftirqd/107:40:131
2901699278,3cyclictest32756-21irqrtprio09:25:190
29016992721,4cyclictest9-21ksoftirqd/007:13:120
29017992621,3cyclictest25-21ksoftirqd/111:54:521
29017992621,3cyclictest25-21ksoftirqd/111:32:191
29017992621,3cyclictest25-21ksoftirqd/111:32:191
29017992621,3cyclictest25-21ksoftirqd/110:51:121
29017992621,3cyclictest25-21ksoftirqd/108:11:541
29017992620,4cyclictest25-21ksoftirqd/109:18:251
29017992520,3cyclictest25-21ksoftirqd/110:17:291
29017992519,4cyclictest25-21ksoftirqd/112:15:011
29017992419,3cyclictest25-21ksoftirqd/112:39:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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