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2026-05-28 - 22:14
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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 Thu May 28, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205172,22phc2sys0-21swapper/307:09:573
27272202169,22sleep20-21swapper/207:05:362
29432201167,23sleep10-21swapper/107:08:241
29922200167,22sleep00-21swapper/007:09:030
3233521550,2sleep2336999cyclictest08:05:252
1982021400,6sleep3337099cyclictest07:40:223
1385918261,11phc2sys0-21swapper/307:10:003
138491780,1ptp4l391rcuc/309:40:143
138491640,1ptp4l401ktimersoftd/308:40:123
316532590,5sleep341-21ksoftirqd/308:05:173
20942590,7sleep2336999cyclictest10:20:242
138491590,0ptp4l401ktimersoftd/311:21:173
235852570,5sleep323584-21latency_hist12:10:013
137142520,1sleep10-21swapper/111:50:131
132342510,3sleep20-21swapper/208:35:142
307525035,7sleep10-21swapper/107:10:001
3367994640,3cyclictest30702-21sh11:19:590
3368994415,4cyclictest25-21ksoftirqd/109:00:131
3368994411,7cyclictest25-21ksoftirqd/110:20:191
138491440,0ptp4l401ktimersoftd/312:30:063
138491430,0ptp4l401ktimersoftd/312:35:373
138491430,0ptp4l401ktimersoftd/309:48:493
337099421,3cyclictest121rcu_preempt08:11:033
3369994227,7cyclictest33-21ksoftirqd/208:11:022
3368994237,3cyclictest25-21ksoftirqd/111:40:001
3368994214,4cyclictest25-21ksoftirqd/108:20:171
138491420,0ptp4l401ktimersoftd/307:53:523
3370994127,12cyclictest41-21ksoftirqd/311:00:003
3370994127,12cyclictest41-21ksoftirqd/311:00:003
336899419,4cyclictest25-21ksoftirqd/109:15:271
3368994136,3cyclictest25-21ksoftirqd/108:30:121
3368994135,3cyclictest25-21ksoftirqd/111:14:591
138491410,1ptp4l401ktimersoftd/308:17:473
138491410,0ptp4l401ktimersoftd/309:15:233
3368994011,3cyclictest25-21ksoftirqd/110:55:201
3368994011,3cyclictest25-21ksoftirqd/110:55:201
138491400,1ptp4l401ktimersoftd/307:19:183
336899395,4cyclictest25-21ksoftirqd/109:10:131
3368993934,2cyclictest25-21ksoftirqd/112:30:001
336899391,5cyclictest25-21ksoftirqd/109:55:161
336899390,3cyclictest25-21ksoftirqd/112:10:171
3369993834,3cyclictest33-21ksoftirqd/210:30:192
3369993832,4cyclictest33-21ksoftirqd/209:50:012
336899388,4cyclictest25-21ksoftirqd/107:55:261
336899387,2cyclictest25-21ksoftirqd/110:15:161
336899384,3cyclictest121rcu_preempt11:30:171
3368993834,3cyclictest25-21ksoftirqd/111:15:221
3368993833,3cyclictest25-21ksoftirqd/110:45:001
3368993832,3cyclictest25-21ksoftirqd/110:25:171
3368993832,3cyclictest25-21ksoftirqd/108:40:001
336899381,5cyclictest25-21ksoftirqd/111:00:241
3368993811,6cyclictest25-21ksoftirqd/108:00:131
3368993810,4cyclictest25-21ksoftirqd/109:43:551
3368993810,3cyclictest25-21ksoftirqd/108:40:171
3370993731,4cyclictest41-21ksoftirqd/308:31:173
3369993732,3cyclictest33-21ksoftirqd/209:34:592
3369993732,3cyclictest33-21ksoftirqd/207:40:002
3369993731,4cyclictest33-21ksoftirqd/212:31:142
3369993731,4cyclictest33-21ksoftirqd/208:56:242
3369993731,4cyclictest33-21ksoftirqd/208:30:012
336899374,3cyclictest121rcu_preempt10:10:111
336899374,2cyclictest121rcu_preempt11:55:121
336899374,2cyclictest121rcu_preempt11:55:121
3368993733,2cyclictest25-21ksoftirqd/109:30:171
3368993733,2cyclictest231rcuc/111:25:121
3368993733,2cyclictest231rcuc/111:25:121
3368993732,3cyclictest25-21ksoftirqd/112:00:131
3368993732,3cyclictest25-21ksoftirqd/111:05:251
3368993732,3cyclictest25-21ksoftirqd/107:25:131
3368993732,2cyclictest25-21ksoftirqd/110:55:001
3368993731,3cyclictest25-21ksoftirqd/110:35:241
3368993731,3cyclictest25-21ksoftirqd/109:50:131
336899372,3cyclictest25-21ksoftirqd/107:20:181
336899371,3cyclictest25-21ksoftirqd/109:35:181
3367993732,3cyclictest9-21ksoftirqd/010:40:070
3367993731,4cyclictest9-21ksoftirqd/012:11:220
3370993631,3cyclictest41-21ksoftirqd/311:55:003
3370993631,3cyclictest41-21ksoftirqd/308:47:563
3370993630,4cyclictest41-21ksoftirqd/312:25:343
3370993630,4cyclictest41-21ksoftirqd/310:28:473
3370993630,4cyclictest41-21ksoftirqd/310:12:103
3370993630,4cyclictest41-21ksoftirqd/307:26:553
3369993630,4cyclictest33-21ksoftirqd/211:45:322
3369993630,4cyclictest33-21ksoftirqd/211:39:112
3369993630,4cyclictest33-21ksoftirqd/211:03:362
3369993629,4cyclictest33-21ksoftirqd/212:38:412
336899365,4cyclictest25-21ksoftirqd/112:20:221
336899364,2cyclictest121rcu_preempt10:00:121
336899363,3cyclictest25-21ksoftirqd/112:15:141
336899363,3cyclictest25-21ksoftirqd/108:15:191
336899363,2cyclictest121rcu_preempt08:45:201
3368993631,3cyclictest25-21ksoftirqd/110:30:271
3368993631,3cyclictest25-21ksoftirqd/110:05:121
3368993631,3cyclictest25-21ksoftirqd/109:50:001
3368993631,2cyclictest25-21ksoftirqd/107:30:261
3368993629,4cyclictest25-21ksoftirqd/107:52:591
336899361,5cyclictest25-21ksoftirqd/108:25:231
3367993629,5cyclictest9-21ksoftirqd/007:29:520
3370993530,3cyclictest41-21ksoftirqd/309:57:403
3370993529,4cyclictest41-21ksoftirqd/311:16:013
3370993529,4cyclictest41-21ksoftirqd/311:00:413
3370993529,4cyclictest41-21ksoftirqd/309:34:483
3370993529,4cyclictest41-21ksoftirqd/307:55:433
3370993529,4cyclictest41-21ksoftirqd/307:31:363
3369993530,3cyclictest33-21ksoftirqd/212:22:272
3369993530,3cyclictest33-21ksoftirqd/210:07:252
3369993529,4cyclictest33-21ksoftirqd/210:57:272
3369993529,4cyclictest33-21ksoftirqd/210:57:262
3369993529,4cyclictest33-21ksoftirqd/210:42:502
3369993529,4cyclictest33-21ksoftirqd/209:18:552
3369993529,4cyclictest33-21ksoftirqd/207:29:312
336899354,6cyclictest121rcu_preempt11:45:181
336899354,2cyclictest121rcu_preempt12:35:111
336899353,4cyclictest25-21ksoftirqd/111:20:191
336899353,2cyclictest121rcu_preempt08:50:241
336899353,2cyclictest121rcu_preempt08:10:181
3368993531,2cyclictest25-21ksoftirqd/107:15:151
3368993530,3cyclictest25-21ksoftirqd/108:10:001
3368993529,4cyclictest25-21ksoftirqd/112:07:181
3368993529,3cyclictest25-21ksoftirqd/107:44:591
3368993528,4cyclictest25-21ksoftirqd/108:55:101
336899351,5cyclictest25-21ksoftirqd/112:30:121
336899351,5cyclictest25-21ksoftirqd/111:40:231
336899351,4cyclictest25-21ksoftirqd/109:20:161
3367993529,4cyclictest9-21ksoftirqd/012:30:280
3367993529,4cyclictest9-21ksoftirqd/012:23:260
3367993529,4cyclictest9-21ksoftirqd/011:42:180
3367993529,4cyclictest9-21ksoftirqd/010:16:490
3367993529,4cyclictest9-21ksoftirqd/009:45:520
3367993529,4cyclictest9-21ksoftirqd/008:31:150
3367993529,4cyclictest9-21ksoftirqd/007:21:420
3369993429,3cyclictest33-21ksoftirqd/211:12:272
3369993429,3cyclictest33-21ksoftirqd/210:40:012
3369993428,4cyclictest33-21ksoftirqd/211:16:322
3369993428,4cyclictest33-21ksoftirqd/209:35:062
3369993428,4cyclictest33-21ksoftirqd/209:12:042
3369993428,4cyclictest33-21ksoftirqd/207:33:122
3369993428,4cyclictest33-21ksoftirqd/207:21:282
3369993427,4cyclictest33-21ksoftirqd/211:05:152
336899344,3cyclictest25-21ksoftirqd/109:25:151
3368993429,3cyclictest25-21ksoftirqd/110:45:271
3368993427,4cyclictest25-21ksoftirqd/109:07:541
3367993429,3cyclictest9-21ksoftirqd/008:05:350
3367993428,4cyclictest9-21ksoftirqd/011:13:490
3367993428,4cyclictest9-21ksoftirqd/011:08:040
3367993428,4cyclictest9-21ksoftirqd/011:02:380
3367993428,4cyclictest9-21ksoftirqd/009:59:030
3367993428,4cyclictest9-21ksoftirqd/007:35:060
3370993328,3cyclictest41-21ksoftirqd/311:30:103
3370993328,3cyclictest41-21ksoftirqd/309:10:063
3370993328,3cyclictest41-21ksoftirqd/309:00:113
3370993327,4cyclictest41-21ksoftirqd/312:23:383
3370993327,4cyclictest41-21ksoftirqd/312:04:043
3370993327,4cyclictest41-21ksoftirqd/311:36:313
3370993327,4cyclictest41-21ksoftirqd/311:28:323
3370993327,4cyclictest41-21ksoftirqd/311:28:323
3370993327,4cyclictest41-21ksoftirqd/310:38:303
3370993327,4cyclictest41-21ksoftirqd/310:09:013
3370993327,4cyclictest41-21ksoftirqd/308:39:363
3369993328,3cyclictest33-21ksoftirqd/209:57:222
3369993328,3cyclictest33-21ksoftirqd/207:59:472
3369993327,4cyclictest33-21ksoftirqd/211:41:192
3369993327,4cyclictest33-21ksoftirqd/211:23:462
3369993327,4cyclictest33-21ksoftirqd/210:47:322
3369993327,4cyclictest33-21ksoftirqd/210:14:312
3369993327,4cyclictest33-21ksoftirqd/210:04:232
3369993327,4cyclictest33-21ksoftirqd/209:53:122
3369993327,4cyclictest33-21ksoftirqd/209:25:012
3369993327,4cyclictest33-21ksoftirqd/207:43:432
3369993327,4cyclictest33-21ksoftirqd/207:12:382
3369993327,3cyclictest33-21ksoftirqd/212:04:582
336899335,4cyclictest25-21ksoftirqd/107:48:571
3368993329,2cyclictest25-21ksoftirqd/107:35:121
3367993329,2cyclictest9-21ksoftirqd/007:41:590
3367993328,3cyclictest9-21ksoftirqd/009:00:190
3367993327,4cyclictest9-21ksoftirqd/012:26:380
3367993327,4cyclictest9-21ksoftirqd/011:31:460
3367993327,4cyclictest9-21ksoftirqd/011:28:170
3367993327,4cyclictest9-21ksoftirqd/011:28:170
3367993327,4cyclictest9-21ksoftirqd/010:21:500
3367993327,4cyclictest9-21ksoftirqd/010:10:080
3367993327,4cyclictest9-21ksoftirqd/010:01:200
3367993327,4cyclictest9-21ksoftirqd/009:26:180
3367993327,4cyclictest9-21ksoftirqd/008:40:040
3367993327,4cyclictest9-21ksoftirqd/008:13:130
3370993225,5cyclictest41-21ksoftirqd/309:21:193
3369993228,3cyclictest33-21ksoftirqd/212:05:062
3369993227,3cyclictest33-21ksoftirqd/211:30:002
3369993227,3cyclictest33-21ksoftirqd/211:30:002
3369993227,3cyclictest33-21ksoftirqd/210:51:032
3369993226,4cyclictest33-21ksoftirqd/209:43:222
3369993226,4cyclictest33-21ksoftirqd/208:19:442
3369993226,4cyclictest33-21ksoftirqd/207:51:202
3369993226,4cyclictest33-21ksoftirqd/207:46:032
3369993226,4cyclictest33-21ksoftirqd/207:18:392
3369993225,4cyclictest33-21ksoftirqd/209:27:442
3367993227,3cyclictest9-21ksoftirqd/009:39:260
3367993227,3cyclictest9-21ksoftirqd/007:30:090
3367993226,4cyclictest9-21ksoftirqd/010:52:110
3367993226,4cyclictest9-21ksoftirqd/009:17:360
3367993226,4cyclictest9-21ksoftirqd/009:09:290
3367993226,4cyclictest9-21ksoftirqd/008:20:510
3367993226,4cyclictest9-21ksoftirqd/008:19:420
3370993126,3cyclictest41-21ksoftirqd/310:50:093
3370993126,3cyclictest41-21ksoftirqd/310:40:153
3370993126,3cyclictest41-21ksoftirqd/310:04:023
3370993125,4cyclictest41-21ksoftirqd/311:43:333
3370993125,4cyclictest41-21ksoftirqd/311:14:573
3370993125,4cyclictest41-21ksoftirqd/311:05:423
3370993125,4cyclictest13767-21fschecks_count10:45:163
3369993126,3cyclictest33-21ksoftirqd/211:58:332
3369993126,3cyclictest33-21ksoftirqd/211:58:332
3369993126,3cyclictest33-21ksoftirqd/209:05:282
3369993125,4cyclictest33-21ksoftirqd/208:49:172
3369993125,4cyclictest33-21ksoftirqd/208:00:032
3369993124,4cyclictest33-21ksoftirqd/212:18:512
3367993126,3cyclictest9-21ksoftirqd/010:57:450
3367993126,3cyclictest9-21ksoftirqd/010:57:450
3367993126,3cyclictest9-21ksoftirqd/007:15:570
3367993125,4cyclictest9-21ksoftirqd/012:37:140
3367993125,4cyclictest9-21ksoftirqd/011:55:590
3367993125,4cyclictest9-21ksoftirqd/011:55:580
3367993125,4cyclictest9-21ksoftirqd/009:21:370
3367993125,4cyclictest9-21ksoftirqd/007:59:560
3367993125,4cyclictest9-21ksoftirqd/007:48:420
3367993115,5cyclictest9-21ksoftirqd/011:20:150
138491310,0ptp4l401ktimersoftd/308:55:123
138491310,0ptp4l401ktimersoftd/307:23:553
3370993025,3cyclictest41-21ksoftirqd/308:54:503
3370993025,3cyclictest41-21ksoftirqd/308:21:203
3370993024,4cyclictest41-21ksoftirqd/311:58:573
3370993024,4cyclictest41-21ksoftirqd/311:58:573
3369993024,4cyclictest33-21ksoftirqd/212:29:532
3369993024,4cyclictest33-21ksoftirqd/212:12:122
3369993024,4cyclictest33-21ksoftirqd/208:44:032
3369993024,4cyclictest33-21ksoftirqd/208:31:172
3367993025,3cyclictest9-21ksoftirqd/011:49:240
3367993025,3cyclictest9-21ksoftirqd/008:45:420
3367993024,4cyclictest9-21ksoftirqd/012:18:370
3367993024,4cyclictest9-21ksoftirqd/012:03:000
3367993024,4cyclictest9-21ksoftirqd/010:08:580
3367993024,4cyclictest9-21ksoftirqd/009:30:390
138491300,9ptp4l401ktimersoftd/309:07:433
138491300,1ptp4l401ktimersoftd/312:15:103
138491300,0ptp4l401ktimersoftd/309:39:023
138491300,0ptp4l401ktimersoftd/308:25:443
138491300,0ptp4l401ktimersoftd/307:48:593
3370992924,3cyclictest41-21ksoftirqd/311:45:163
3370992924,3cyclictest41-21ksoftirqd/308:00:183
3369992924,3cyclictest33-21ksoftirqd/209:00:042
3367992924,3cyclictest9-21ksoftirqd/010:48:210
3367992923,4cyclictest9-21ksoftirqd/009:54:020
3367992923,4cyclictest9-21ksoftirqd/009:11:330
138491290,0ptp4l401ktimersoftd/310:20:043
138491290,0ptp4l401ktimersoftd/310:17:543
370022822,3sleep233-21ksoftirqd/210:25:142
3370992822,4cyclictest41-21ksoftirqd/309:50:333
3369992822,4cyclictest33-21ksoftirqd/210:15:342
3369992822,4cyclictest33-21ksoftirqd/208:53:112
3367992823,3cyclictest9-21ksoftirqd/008:53:250
3367992823,3cyclictest9-21ksoftirqd/008:25:110
3367992822,4cyclictest9-21ksoftirqd/008:55:500
138491280,1ptp4l401ktimersoftd/310:30:113
3370992722,3cyclictest41-21ksoftirqd/307:35:453
3369992722,3cyclictest33-21ksoftirqd/211:53:212
3369992721,4cyclictest33-21ksoftirqd/208:22:252
3367992722,3cyclictest9-21ksoftirqd/010:32:100
3367992722,3cyclictest9-21ksoftirqd/010:25:390
3367992721,4cyclictest9-21ksoftirqd/008:03:340
3367992621,3cyclictest9-21ksoftirqd/012:05:100
3367992621,3cyclictest9-21ksoftirqd/008:35:340
3367992621,3cyclictest9-21ksoftirqd/007:10:110
138491260,1ptp4l401ktimersoftd/312:10:113
3369992520,3cyclictest33-21ksoftirqd/211:32:012
3367992521,2cyclictest9-21ksoftirqd/010:35:120
3367992520,3cyclictest9-21ksoftirqd/011:50:580
138491250,0ptp4l401ktimersoftd/309:25:173
3367992418,4cyclictest9-21ksoftirqd/011:39:050
3367992318,3cyclictest9-21ksoftirqd/009:41:550
3367992216,4cyclictest9-21ksoftirqd/007:52:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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