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2026-04-18 - 16:13
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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 rackdslot2.osadl.org (updated Sat Apr 18, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149792208174,22sleep30-21swapper/307:08:523
147262206170,24sleep20-21swapper/207:05:332
149422205172,21sleep10-21swapper/107:08:231
148172204171,22sleep00-21swapper/007:06:440
2108821220,5sleep21536799cyclictest09:35:212
139291580,1ptp4l401ktimersoftd/308:55:183
210762570,5sleep121078-21processes11:50:231
88842500,2sleep10-21swapper/112:35:001
139291440,36ptp4l0-21swapper/307:10:013
139291430,0ptp4l401ktimersoftd/307:23:253
15368994237,3cyclictest41-21ksoftirqd/309:40:013
139291420,0ptp4l401ktimersoftd/309:48:593
15368993934,3cyclictest41-21ksoftirqd/312:40:003
15368993934,3cyclictest41-21ksoftirqd/311:40:003
15368993934,3cyclictest41-21ksoftirqd/311:40:003
15368993934,3cyclictest41-21ksoftirqd/309:15:013
15368993933,4cyclictest41-21ksoftirqd/307:51:083
15368993933,3cyclictest41-21ksoftirqd/310:05:003
15368993833,3cyclictest41-21ksoftirqd/312:25:003
15368993833,3cyclictest41-21ksoftirqd/311:50:013
15368993833,3cyclictest41-21ksoftirqd/311:20:013
15368993832,4cyclictest41-21ksoftirqd/312:07:143
15368993832,4cyclictest41-21ksoftirqd/309:56:003
15368993832,4cyclictest41-21ksoftirqd/308:28:063
15367993832,4cyclictest33-21ksoftirqd/208:46:112
15367993832,4cyclictest33-21ksoftirqd/208:46:112
15366993833,3cyclictest25-21ksoftirqd/108:55:001
15368993733,3cyclictest41-21ksoftirqd/310:40:013
15368993732,3cyclictest41-21ksoftirqd/311:45:003
15368993732,3cyclictest41-21ksoftirqd/310:15:193
15368993732,3cyclictest41-21ksoftirqd/308:15:193
15368993732,3cyclictest10043-21cron11:29:593
15368993731,4cyclictest41-21ksoftirqd/311:32:153
15368993731,4cyclictest41-21ksoftirqd/310:58:023
15368993731,4cyclictest41-21ksoftirqd/308:53:343
15368993730,4cyclictest41-21ksoftirqd/311:05:563
15367993732,3cyclictest33-21ksoftirqd/207:33:332
15367993731,4cyclictest33-21ksoftirqd/209:46:202
15367993731,4cyclictest33-21ksoftirqd/207:49:552
15366993732,3cyclictest25-21ksoftirqd/108:30:141
15366993731,4cyclictest25-21ksoftirqd/111:56:331
15365993731,4cyclictest9-21ksoftirqd/011:07:340
15368993631,3cyclictest41-21ksoftirqd/310:40:133
15368993631,3cyclictest41-21ksoftirqd/308:00:003
15368993631,3cyclictest41-21ksoftirqd/307:29:133
15368993630,4cyclictest41-21ksoftirqd/308:39:103
15368993630,3cyclictest41-21ksoftirqd/311:50:123
15368993630,3cyclictest41-21ksoftirqd/308:05:213
15367993617,16cyclictest20806-21ps07:20:202
15366993630,4cyclictest25-21ksoftirqd/111:27:521
15366993630,4cyclictest25-21ksoftirqd/107:38:591
15365993631,3cyclictest9-21ksoftirqd/010:25:110
15365993631,3cyclictest9-21ksoftirqd/010:25:110
15365993630,4cyclictest9-21ksoftirqd/008:09:460
15368993530,3cyclictest41-21ksoftirqd/310:15:003
15368993529,4cyclictest41-21ksoftirqd/310:31:543
15368993529,4cyclictest41-21ksoftirqd/309:50:503
15368993529,4cyclictest41-21ksoftirqd/309:44:003
15368993529,4cyclictest41-21ksoftirqd/307:17:423
15368993528,4cyclictest41-21ksoftirqd/308:23:453
15367993530,3cyclictest33-21ksoftirqd/212:27:272
15367993530,3cyclictest33-21ksoftirqd/208:16:582
15367993529,4cyclictest33-21ksoftirqd/212:11:102
15367993529,4cyclictest33-21ksoftirqd/212:00:122
15367993529,4cyclictest33-21ksoftirqd/211:32:192
15367993529,4cyclictest33-21ksoftirqd/210:18:012
15367993529,4cyclictest33-21ksoftirqd/210:10:392
15367993529,4cyclictest33-21ksoftirqd/208:59:402
15367993521,12cyclictest33-21ksoftirqd/209:53:062
15366993529,4cyclictest25-21ksoftirqd/112:37:011
15366993529,4cyclictest25-21ksoftirqd/109:52:051
15366993529,4cyclictest25-21ksoftirqd/109:18:191
15366993529,4cyclictest25-21ksoftirqd/109:02:421
15366993529,4cyclictest25-21ksoftirqd/107:50:371
15365993530,3cyclictest9-21ksoftirqd/010:05:140
15365993530,3cyclictest9-21ksoftirqd/008:52:470
15365993529,4cyclictest9-21ksoftirqd/012:34:430
15365993529,4cyclictest9-21ksoftirqd/010:53:300
15365993529,4cyclictest9-21ksoftirqd/009:54:240
15365993529,4cyclictest9-21ksoftirqd/009:41:450
15365993529,4cyclictest9-21ksoftirqd/008:23:190
15365993529,3cyclictest9-21ksoftirqd/009:15:130
15365993528,5cyclictest9-21ksoftirqd/008:32:170
139291350,0ptp4l401ktimersoftd/309:22:563
15368993429,3cyclictest41-21ksoftirqd/311:55:443
15368993429,3cyclictest41-21ksoftirqd/310:50:123
15368993428,4cyclictest41-21ksoftirqd/309:03:413
15368993428,4cyclictest41-21ksoftirqd/308:48:563
15368993428,4cyclictest41-21ksoftirqd/308:48:563
15368993428,4cyclictest41-21ksoftirqd/307:44:223
15368993428,4cyclictest41-21ksoftirqd/307:44:223
15368993428,3cyclictest41-21ksoftirqd/312:00:023
15367993429,3cyclictest33-21ksoftirqd/212:30:122
15367993429,3cyclictest33-21ksoftirqd/211:42:062
15367993429,3cyclictest33-21ksoftirqd/209:06:552
15367993428,4cyclictest33-21ksoftirqd/211:59:232
15367993428,4cyclictest33-21ksoftirqd/211:25:092
15367993428,4cyclictest33-21ksoftirqd/211:17:592
15367993428,4cyclictest33-21ksoftirqd/210:41:362
15367993428,4cyclictest33-21ksoftirqd/210:08:592
15367993428,4cyclictest33-21ksoftirqd/208:53:412
15367993428,4cyclictest33-21ksoftirqd/208:40:412
15367993428,4cyclictest33-21ksoftirqd/207:27:402
1536799342,29cyclictest11269-21latency_hist10:25:002
15367993421,11cyclictest33-21ksoftirqd/209:45:002
15367993410,21cyclictest24666-21sed08:35:202
15366993429,3cyclictest25-21ksoftirqd/108:16:131
15366993428,4cyclictest25-21ksoftirqd/110:22:581
15366993428,4cyclictest25-21ksoftirqd/110:00:351
15366993428,4cyclictest25-21ksoftirqd/107:46:081
15366993427,4cyclictest25-21ksoftirqd/110:10:421
15365993429,3cyclictest9-21ksoftirqd/011:33:130
15365993429,3cyclictest9-21ksoftirqd/009:35:550
15365993428,4cyclictest9-21ksoftirqd/011:21:380
15365993428,4cyclictest9-21ksoftirqd/011:10:510
15365993428,4cyclictest9-21ksoftirqd/009:14:410
15365993428,4cyclictest9-21ksoftirqd/008:11:390
15365993427,4cyclictest9-21ksoftirqd/012:10:040
15365993427,4cyclictest9-21ksoftirqd/011:17:000
139291340,0ptp4l401ktimersoftd/308:40:193
15368993329,3cyclictest41-21ksoftirqd/311:15:003
15368993329,3cyclictest41-21ksoftirqd/308:30:203
15368993328,3cyclictest41-21ksoftirqd/312:17:393
15368993328,3cyclictest41-21ksoftirqd/312:10:193
15368993328,3cyclictest41-21ksoftirqd/309:30:003
15368993328,3cyclictest41-21ksoftirqd/308:14:383
15368993327,4cyclictest41-21ksoftirqd/310:48:033
15368993327,4cyclictest41-21ksoftirqd/309:33:213
15368993327,4cyclictest41-21ksoftirqd/309:16:453
15368993327,4cyclictest41-21ksoftirqd/307:49:593
15368993327,3cyclictest41-21ksoftirqd/311:20:173
1536799339,21cyclictest20488-21cut11:50:192
15367993329,3cyclictest33-21ksoftirqd/210:57:552
15367993329,3cyclictest33-21ksoftirqd/209:26:552
15367993328,3cyclictest33-21ksoftirqd/209:58:042
15367993328,3cyclictest33-21ksoftirqd/209:19:582
15367993327,4cyclictest33-21ksoftirqd/210:46:222
15367993327,4cyclictest33-21ksoftirqd/210:27:562
15367993327,4cyclictest33-21ksoftirqd/210:27:562
15367993327,4cyclictest33-21ksoftirqd/209:32:522
15367993327,4cyclictest33-21ksoftirqd/208:13:292
15367993327,4cyclictest33-21ksoftirqd/208:01:462
1536799331,29cyclictest9171-21kworker/2:209:20:132
15367993310,20cyclictest21363-21cat08:30:142
15366993328,3cyclictest25-21ksoftirqd/112:21:031
15366993328,3cyclictest25-21ksoftirqd/111:35:471
15366993328,3cyclictest25-21ksoftirqd/111:35:471
15366993328,3cyclictest25-21ksoftirqd/110:54:551
15366993327,4cyclictest25-21ksoftirqd/111:41:081
15366993327,4cyclictest25-21ksoftirqd/109:56:501
15366993327,4cyclictest25-21ksoftirqd/108:45:581
15366993327,4cyclictest25-21ksoftirqd/108:45:581
15366993327,4cyclictest25-21ksoftirqd/108:06:151
15366993327,4cyclictest25-21ksoftirqd/107:56:511
15365993328,3cyclictest9-21ksoftirqd/010:49:120
15365993327,4cyclictest9-21ksoftirqd/011:53:270
15365993327,4cyclictest9-21ksoftirqd/010:04:150
15365993327,4cyclictest9-21ksoftirqd/007:22:170
15365993326,4cyclictest9-21ksoftirqd/008:46:010
15365993326,4cyclictest9-21ksoftirqd/008:46:010
15368993228,3cyclictest41-21ksoftirqd/311:00:183
15368993227,3cyclictest41-21ksoftirqd/309:08:033
15368993227,3cyclictest41-21ksoftirqd/307:30:123
15368993221,9cyclictest41-21ksoftirqd/312:25:243
15367993227,3cyclictest33-21ksoftirqd/212:19:242
15367993227,3cyclictest33-21ksoftirqd/208:29:262
15367993226,4cyclictest33-21ksoftirqd/212:07:042
15367993226,4cyclictest33-21ksoftirqd/210:03:532
1536799322,29cyclictest7900-21kworker/2:111:45:132
1536799321,29cyclictest32673-21awk11:10:002
1536799320,3cyclictest4798-21cpuspeed_turbos07:55:122
15366993227,3cyclictest25-21ksoftirqd/112:01:211
15366993227,3cyclictest25-21ksoftirqd/109:28:491
15366993227,3cyclictest25-21ksoftirqd/108:56:561
15366993226,4cyclictest25-21ksoftirqd/112:27:011
15366993226,4cyclictest25-21ksoftirqd/112:16:191
15366993226,4cyclictest25-21ksoftirqd/109:06:071
15366993226,4cyclictest25-21ksoftirqd/108:29:011
15365993227,3cyclictest9-21ksoftirqd/012:18:100
15365993227,3cyclictest9-21ksoftirqd/008:59:110
15365993226,4cyclictest9-21ksoftirqd/011:46:370
15365993226,4cyclictest9-21ksoftirqd/011:42:000
15365993226,4cyclictest9-21ksoftirqd/009:55:530
15365993226,4cyclictest9-21ksoftirqd/008:26:240
15365993226,4cyclictest9-21ksoftirqd/008:01:080
15365993226,4cyclictest9-21ksoftirqd/007:12:210
15365993225,5cyclictest9-21ksoftirqd/009:05:000
15368993126,3cyclictest41-21ksoftirqd/310:22:433
15368993126,3cyclictest41-21ksoftirqd/307:35:523
1536799319,19cyclictest16530-21cat10:35:152
15367993127,3cyclictest33-21ksoftirqd/207:18:552
15367993126,3cyclictest33-21ksoftirqd/209:11:202
15367993126,3cyclictest33-21ksoftirqd/207:38:432
15367993125,4cyclictest33-21ksoftirqd/209:01:352
15367993125,4cyclictest33-21ksoftirqd/208:23:572
1536799312,27cyclictest15798-21kworker/2:207:14:252
15367993110,19cyclictest30253-21seq11:04:572
1536799310,4cyclictest3085-21latency07:50:212
1536799310,3cyclictest30133-21fschecks_time07:40:162
1536799310,3cyclictest30133-21fschecks_time07:40:162
15366993126,3cyclictest25-21ksoftirqd/110:44:551
15366993125,4cyclictest25-21ksoftirqd/111:33:131
15366993125,4cyclictest25-21ksoftirqd/107:42:521
15366993125,4cyclictest25-21ksoftirqd/107:42:511
15365993126,3cyclictest9-21ksoftirqd/012:07:210
15365993125,4cyclictest9-21ksoftirqd/010:19:240
15365993125,4cyclictest9-21ksoftirqd/010:10:370
15365993125,4cyclictest9-21ksoftirqd/009:48:390
15365993125,4cyclictest9-21ksoftirqd/007:46:550
15368993025,3cyclictest41-21ksoftirqd/312:34:253
15367993024,4cyclictest33-21ksoftirqd/211:36:122
15367993024,4cyclictest33-21ksoftirqd/211:36:122
15366993025,3cyclictest25-21ksoftirqd/108:36:361
15366993025,3cyclictest25-21ksoftirqd/107:23:501
15366993024,4cyclictest25-21ksoftirqd/111:46:061
15366993024,4cyclictest25-21ksoftirqd/110:36:411
15366993024,4cyclictest25-21ksoftirqd/110:34:411
15366993024,4cyclictest25-21ksoftirqd/109:46:391
15366993024,4cyclictest25-21ksoftirqd/109:32:551
15366993023,5cyclictest25-21ksoftirqd/109:12:541
15365993025,3cyclictest9-21ksoftirqd/010:37:490
15365993024,4cyclictest9-21ksoftirqd/012:37:520
15365993024,4cyclictest9-21ksoftirqd/012:01:250
15365993024,4cyclictest9-21ksoftirqd/011:57:320
15365993024,4cyclictest9-21ksoftirqd/009:09:390
15365993024,4cyclictest9-21ksoftirqd/007:52:500
15365993024,4cyclictest9-21ksoftirqd/007:37:330
15365993024,3cyclictest9-21ksoftirqd/010:24:250
139291300,0ptp4l401ktimersoftd/310:25:193
139291300,0ptp4l401ktimersoftd/310:25:193
15368992925,2cyclictest41-21ksoftirqd/308:04:153
15367992924,3cyclictest33-21ksoftirqd/212:22:332
15367992923,4cyclictest33-21ksoftirqd/212:39:592
15367992923,4cyclictest33-21ksoftirqd/211:21:202
15366992925,3cyclictest25-21ksoftirqd/110:55:441
15366992924,3cyclictest25-21ksoftirqd/111:22:051
15366992924,3cyclictest25-21ksoftirqd/111:02:251
15366992924,3cyclictest25-21ksoftirqd/108:20:241
15366992923,4cyclictest25-21ksoftirqd/111:19:021
15366992923,4cyclictest25-21ksoftirqd/110:19:131
15366992923,4cyclictest25-21ksoftirqd/109:44:311
15366992923,4cyclictest25-21ksoftirqd/109:22:481
15365992924,3cyclictest9-21ksoftirqd/007:18:160
15365992923,4cyclictest9-21ksoftirqd/011:39:550
15365992923,4cyclictest9-21ksoftirqd/011:39:550
15365992923,4cyclictest9-21ksoftirqd/010:43:180
15365992922,4cyclictest27003-21cron07:35:000
15368992824,2cyclictest41-21ksoftirqd/310:05:173
15367992824,3cyclictest33-21ksoftirqd/211:10:412
1536799282,25cyclictest9171-21kworker/2:208:05:372
15367992822,4cyclictest33-21ksoftirqd/210:50:112
15366992823,3cyclictest25-21ksoftirqd/107:10:111
15366992822,4cyclictest25-21ksoftirqd/107:17:121
15365992823,3cyclictest9-21ksoftirqd/012:21:590
15365992823,3cyclictest9-21ksoftirqd/007:58:060
15365992822,4cyclictest9-21ksoftirqd/011:00:560
15365992822,4cyclictest9-21ksoftirqd/010:30:310
15365992822,3cyclictest9-21ksoftirqd/007:41:250
15365992822,3cyclictest9-21ksoftirqd/007:41:250
1536799274,21cyclictest9171-21kworker/2:210:30:212
15366992722,3cyclictest25-21ksoftirqd/112:10:181
15366992722,3cyclictest25-21ksoftirqd/112:07:361
15366992721,4cyclictest25-21ksoftirqd/109:36:241
15366992721,4cyclictest25-21ksoftirqd/108:01:411
15365992722,3cyclictest9-21ksoftirqd/008:18:530
15365992721,4cyclictest9-21ksoftirqd/009:26:280
15365992622,3cyclictest9-21ksoftirqd/009:34:550
15365992619,4cyclictest9-21ksoftirqd/007:28:500
15366992520,3cyclictest25-21ksoftirqd/107:33:491
15365992520,3cyclictest9-21ksoftirqd/010:57:350
15365992519,4cyclictest9-21ksoftirqd/012:29:380
15365992519,4cyclictest9-21ksoftirqd/009:24:280
15365992519,4cyclictest9-21ksoftirqd/008:37:260
15366992319,3cyclictest25-21ksoftirqd/110:05:121
15366992318,3cyclictest25-21ksoftirqd/110:46:451
15366992318,3cyclictest25-21ksoftirqd/107:27:451
15365992317,4cyclictest9-21ksoftirqd/008:43:200
15366992217,3cyclictest25-21ksoftirqd/110:26:551
15366992217,3cyclictest25-21ksoftirqd/110:26:551
15366992216,4cyclictest25-21ksoftirqd/108:12:441
15365991914,3cyclictest9-21ksoftirqd/011:25:550
15366991813,3cyclictest25-21ksoftirqd/108:45:011
15366991812,4cyclictest497-21mktemp11:10:011
15366991712,3cyclictest30742-21cat11:05:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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