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2026-03-30 - 23:28
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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 rackdslot3.osadl.org (updated Mon Mar 30, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491227163,52phc2sys0-21swapper/307:08:223
1725822200,7sleep09706-21kworker/0:007:05:180
181522202169,22sleep10-21swapper/107:05:531
183072201169,21sleep20-21swapper/207:07:542
1580921740,5sleep31877699cyclictest11:30:233
91232560,2sleep10-21swapper/110:10:221
139391510,1ptp4l401ktimersoftd/311:46:433
157502500,2sleep00-21swapper/010:25:170
139391500,0ptp4l401ktimersoftd/307:42:053
139391480,13ptp4l0-21swapper/309:35:133
139391460,10ptp4l0-21swapper/309:10:193
18773994438,3cyclictest19675-21sh10:35:000
139391430,0ptp4l401ktimersoftd/312:25:553
139391430,0ptp4l401ktimersoftd/312:15:193
139391430,0ptp4l401ktimersoftd/308:15:143
139391420,0ptp4l401ktimersoftd/309:32:393
18775994124,5cyclictest33-21ksoftirqd/212:10:282
1877499411,11cyclictest25-21ksoftirqd/111:00:011
139391410,1ptp4l391rcuc/307:15:193
18775994028,9cyclictest33-21ksoftirqd/210:00:172
1877499404,3cyclictest121rcu_preempt07:55:201
1877499403,6cyclictest121rcu_preempt11:30:161
18774994035,3cyclictest14997-21sh08:10:001
18773994036,2cyclictest9-21ksoftirqd/010:00:000
18774993936,2cyclictest25-21ksoftirqd/110:25:001
139391390,0ptp4l401ktimersoftd/309:00:003
18775993833,3cyclictest560-21latency_hist07:39:592
18775993832,3cyclictest33-21ksoftirqd/208:19:592
1877499385,3cyclictest25-21ksoftirqd/109:45:171
18774993834,2cyclictest25-21ksoftirqd/107:20:001
1877499383,3cyclictest121rcu_preempt10:30:261
18774993833,3cyclictest25-21ksoftirqd/107:50:181
18774993832,4cyclictest25-21ksoftirqd/109:57:101
18774993832,3cyclictest25-21ksoftirqd/109:00:001
18773993833,3cyclictest9-21ksoftirqd/010:20:130
18773993833,3cyclictest9-21ksoftirqd/010:10:000
18775993732,3cyclictest33-21ksoftirqd/207:55:002
18774993733,2cyclictest25-21ksoftirqd/107:45:001
18774993732,3cyclictest25-21ksoftirqd/111:35:001
18774993732,3cyclictest25-21ksoftirqd/108:30:191
18774993732,3cyclictest25-21ksoftirqd/108:25:101
18774993731,4cyclictest25-21ksoftirqd/110:30:011
18774993731,3cyclictest25-21ksoftirqd/110:45:241
18774993730,4cyclictest25-21ksoftirqd/112:20:111
18773993733,2cyclictest9-21ksoftirqd/008:15:000
18773993724,3cyclictest9-21ksoftirqd/008:00:250
18773993720,8cyclictest9-21ksoftirqd/007:45:260
1877399371,5cyclictest121rcu_preempt07:50:220
18776993630,4cyclictest41-21ksoftirqd/309:21:013
18776993630,4cyclictest41-21ksoftirqd/308:44:123
18776993630,4cyclictest41-21ksoftirqd/307:32:113
18775993631,3cyclictest33-21ksoftirqd/211:55:152
18775993625,9cyclictest33-21ksoftirqd/211:30:142
18775993611,17cyclictest33-21ksoftirqd/210:20:002
18774993633,2cyclictest25-21ksoftirqd/110:45:001
18774993633,2cyclictest25-21ksoftirqd/107:45:141
18774993632,2cyclictest25-21ksoftirqd/110:35:141
18774993631,3cyclictest25-21ksoftirqd/112:10:141
18774993631,3cyclictest25-21ksoftirqd/110:55:001
18774993631,3cyclictest25-21ksoftirqd/110:55:001
18774993631,3cyclictest25-21ksoftirqd/110:00:171
18774993631,3cyclictest25-21ksoftirqd/109:15:261
18774993631,3cyclictest25-21ksoftirqd/108:35:211
18774993630,4cyclictest25-21ksoftirqd/107:35:381
18774993630,3cyclictest25-21ksoftirqd/109:10:181
18773993633,2cyclictest9-21ksoftirqd/008:00:000
18773993632,2cyclictest9-21ksoftirqd/009:00:010
18773993632,2cyclictest9-21ksoftirqd/007:20:000
18773993631,3cyclictest9-21ksoftirqd/011:00:010
18773993631,3cyclictest9-21ksoftirqd/008:55:000
18773993623,3cyclictest9-21ksoftirqd/012:15:210
18776993529,4cyclictest41-21ksoftirqd/310:26:203
18776993529,4cyclictest41-21ksoftirqd/309:43:483
18776993528,4cyclictest41-21ksoftirqd/312:35:103
18775993531,3cyclictest33-21ksoftirqd/212:30:192
18775993531,2cyclictest33-21ksoftirqd/210:35:012
18775993530,3cyclictest33-21ksoftirqd/209:00:232
18775993529,4cyclictest33-21ksoftirqd/212:00:512
18775993529,4cyclictest33-21ksoftirqd/209:21:202
18775993529,4cyclictest33-21ksoftirqd/208:33:192
18775993529,3cyclictest33-21ksoftirqd/210:25:002
1877499354,5cyclictest121rcu_preempt11:25:111
18774993531,3cyclictest25-21ksoftirqd/107:20:131
18774993530,3cyclictest25-21ksoftirqd/112:10:011
18774993530,3cyclictest25-21ksoftirqd/111:20:011
18774993530,3cyclictest25-21ksoftirqd/109:30:251
18774993530,3cyclictest25-21ksoftirqd/109:05:131
18774993530,3cyclictest25-21ksoftirqd/107:10:221
18774993529,4cyclictest25-21ksoftirqd/111:20:201
18774993529,4cyclictest25-21ksoftirqd/108:51:071
18774993529,4cyclictest25-21ksoftirqd/108:42:081
18774993529,4cyclictest25-21ksoftirqd/107:29:121
18773993531,3cyclictest9-21ksoftirqd/011:35:130
18773993531,2cyclictest9-21ksoftirqd/009:05:000
18773993530,3cyclictest9-21ksoftirqd/011:55:150
18773993530,3cyclictest9-21ksoftirqd/010:55:000
18773993530,3cyclictest9-21ksoftirqd/010:55:000
18773993530,3cyclictest9-21ksoftirqd/009:55:010
18773993529,4cyclictest9-21ksoftirqd/008:22:370
18773993519,8cyclictest9-21ksoftirqd/007:30:250
1877399351,4cyclictest121rcu_preempt11:00:140
1877399351,3cyclictest121rcu_preempt09:45:150
18776993428,4cyclictest41-21ksoftirqd/310:43:293
18776993428,4cyclictest41-21ksoftirqd/310:02:133
18776993428,4cyclictest41-21ksoftirqd/309:09:553
18776993428,4cyclictest41-21ksoftirqd/308:46:323
18776993428,4cyclictest41-21ksoftirqd/308:46:313
18776993428,4cyclictest41-21ksoftirqd/308:22:013
18776993428,4cyclictest41-21ksoftirqd/307:51:243
18775993431,2cyclictest33-21ksoftirqd/211:20:172
18775993429,3cyclictest33-21ksoftirqd/208:55:122
18775993428,4cyclictest33-21ksoftirqd/212:24:132
18775993428,4cyclictest33-21ksoftirqd/210:54:472
18775993428,4cyclictest33-21ksoftirqd/210:54:472
18775993428,4cyclictest33-21ksoftirqd/210:38:322
18775993428,4cyclictest33-21ksoftirqd/209:33:202
18775993428,4cyclictest33-21ksoftirqd/209:06:562
18775993428,4cyclictest33-21ksoftirqd/208:42:252
18775993426,4cyclictest33-21ksoftirqd/208:00:002
18775993423,9cyclictest33-21ksoftirqd/211:25:232
1877499343,8cyclictest121rcu_preempt12:25:181
18774993430,2cyclictest25-21ksoftirqd/109:35:181
18774993429,3cyclictest25-21ksoftirqd/109:20:131
18774993429,3cyclictest25-21ksoftirqd/108:14:591
18774993428,4cyclictest25-21ksoftirqd/112:37:041
18774993428,4cyclictest25-21ksoftirqd/110:19:001
18774993428,4cyclictest25-21ksoftirqd/109:04:591
18774993427,5cyclictest25-21ksoftirqd/107:34:211
1877499342,2cyclictest25-21ksoftirqd/111:40:131
18773993430,2cyclictest9-21ksoftirqd/012:30:140
18773993429,3cyclictest9-21ksoftirqd/011:50:150
18773993429,3cyclictest9-21ksoftirqd/009:40:010
18773993429,3cyclictest9-21ksoftirqd/009:30:110
18773993428,4cyclictest9-21ksoftirqd/010:40:540
18773993428,4cyclictest9-21ksoftirqd/008:36:020
18773993428,4cyclictest9-21ksoftirqd/007:12:490
18773993421,3cyclictest9-21ksoftirqd/012:10:170
18773993421,3cyclictest9-21ksoftirqd/011:05:180
18773993421,3cyclictest9-21ksoftirqd/009:20:000
18773993419,6cyclictest9-21ksoftirqd/010:45:140
18773993418,8cyclictest9-21ksoftirqd/011:20:210
18773993417,8cyclictest9-21ksoftirqd/007:20:150
18776993328,3cyclictest41-21ksoftirqd/311:17:593
18776993328,3cyclictest41-21ksoftirqd/308:09:413
18776993327,4cyclictest41-21ksoftirqd/311:53:013
18776993327,4cyclictest41-21ksoftirqd/311:26:023
18776993327,4cyclictest41-21ksoftirqd/309:49:343
18775993329,3cyclictest33-21ksoftirqd/211:35:202
18775993328,3cyclictest33-21ksoftirqd/211:10:012
18775993328,3cyclictest33-21ksoftirqd/210:55:192
18775993328,3cyclictest33-21ksoftirqd/209:20:012
18775993328,3cyclictest33-21ksoftirqd/207:40:192
18775993328,2cyclictest33-21ksoftirqd/208:25:002
18775993327,4cyclictest33-21ksoftirqd/209:52:372
18775993327,4cyclictest33-21ksoftirqd/208:04:222
18774993329,2cyclictest25-21ksoftirqd/112:30:241
18774993328,3cyclictest25-21ksoftirqd/112:20:001
18774993328,3cyclictest25-21ksoftirqd/109:40:121
18774993328,3cyclictest25-21ksoftirqd/109:29:431
18774993328,3cyclictest25-21ksoftirqd/108:20:201
18774993327,4cyclictest25-21ksoftirqd/111:59:091
18774993327,4cyclictest25-21ksoftirqd/108:47:591
18774993327,4cyclictest25-21ksoftirqd/108:47:581
18774993327,3cyclictest25-21ksoftirqd/110:05:271
18774993326,4cyclictest25-21ksoftirqd/111:50:201
1877499330,2cyclictest121rcu_preempt11:45:171
18773993330,2cyclictest9-21ksoftirqd/010:35:140
18773993329,2cyclictest9-21ksoftirqd/011:35:000
18773993328,3cyclictest9-21ksoftirqd/009:22:580
18773993327,4cyclictest9-21ksoftirqd/012:05:210
18773993327,4cyclictest9-21ksoftirqd/008:42:070
18773993323,4cyclictest9-21ksoftirqd/011:25:110
18773993317,6cyclictest9-21ksoftirqd/009:40:240
18773993317,6cyclictest9-21ksoftirqd/009:25:130
18773993317,3cyclictest9-21ksoftirqd/010:15:260
18776993227,3cyclictest41-21ksoftirqd/310:23:033
18776993226,4cyclictest41-21ksoftirqd/312:20:453
18776993226,4cyclictest41-21ksoftirqd/311:09:133
18776993226,4cyclictest41-21ksoftirqd/309:56:213
18776993226,4cyclictest41-21ksoftirqd/309:27:033
18776993226,4cyclictest41-21ksoftirqd/309:02:093
18776993226,4cyclictest41-21ksoftirqd/308:11:453
18776993226,4cyclictest41-21ksoftirqd/307:23:353
18775993228,2cyclictest33-21ksoftirqd/210:45:182
18775993228,2cyclictest33-21ksoftirqd/207:45:142
18775993227,3cyclictest33-21ksoftirqd/211:44:082
18775993227,3cyclictest33-21ksoftirqd/211:15:202
18775993227,3cyclictest33-21ksoftirqd/210:45:002
18775993227,3cyclictest33-21ksoftirqd/210:28:072
18775993227,3cyclictest33-21ksoftirqd/208:30:002
18775993227,3cyclictest33-21ksoftirqd/207:25:192
18775993226,4cyclictest33-21ksoftirqd/211:13:012
18775993226,4cyclictest33-21ksoftirqd/208:05:352
18775993219,10cyclictest33-21ksoftirqd/208:45:192
18775993219,10cyclictest33-21ksoftirqd/208:45:192
18775993211,9cyclictest33-21ksoftirqd/207:10:312
1877499326,2cyclictest121rcu_preempt12:00:271
18774993227,3cyclictest25-21ksoftirqd/111:10:131
18774993227,3cyclictest25-21ksoftirqd/111:10:011
18774993226,4cyclictest25-21ksoftirqd/108:18:331
1877499320,5cyclictest121rcu_preempt08:00:201
18773993228,3cyclictest9-21ksoftirqd/007:29:590
18773993228,2cyclictest9-21ksoftirqd/012:25:220
18773993227,3cyclictest9-21ksoftirqd/012:35:550
18773993227,3cyclictest9-21ksoftirqd/010:10:570
18773993227,3cyclictest9-21ksoftirqd/009:10:130
18773993226,4cyclictest9-21ksoftirqd/008:16:240
18773993226,3cyclictest9-21ksoftirqd/008:45:180
18773993226,3cyclictest9-21ksoftirqd/008:45:180
18773993225,4cyclictest9-21ksoftirqd/009:05:060
18773993221,3cyclictest9-21ksoftirqd/011:45:170
18773993220,3cyclictest9-21ksoftirqd/008:05:210
18773993218,3cyclictest9-21ksoftirqd/012:20:130
18773993216,3cyclictest9-21ksoftirqd/007:35:150
139391320,0ptp4l401ktimersoftd/311:44:243
18776993126,3cyclictest41-21ksoftirqd/307:14:003
18776993125,4cyclictest41-21ksoftirqd/311:38:573
18776993125,4cyclictest41-21ksoftirqd/309:15:323
18776993125,4cyclictest41-21ksoftirqd/308:54:583
18775993126,3cyclictest33-21ksoftirqd/211:00:262
18775993126,3cyclictest33-21ksoftirqd/209:25:112
18775993126,3cyclictest33-21ksoftirqd/208:14:542
18775993125,4cyclictest33-21ksoftirqd/210:11:242
18775993125,4cyclictest33-21ksoftirqd/208:51:172
18775993125,4cyclictest33-21ksoftirqd/207:32:572
18774993127,2cyclictest25-21ksoftirqd/111:05:001
18773993126,3cyclictest9-21ksoftirqd/010:00:170
18773993126,3cyclictest9-21ksoftirqd/008:30:250
18773993125,4cyclictest9-21ksoftirqd/011:18:440
18773993125,4cyclictest9-21ksoftirqd/008:28:190
18773993125,3cyclictest9-21ksoftirqd/011:10:140
18773993118,3cyclictest9-21ksoftirqd/011:40:240
139391310,8ptp4l0-21swapper/307:38:163
139391310,0ptp4l401ktimersoftd/310:51:563
139391310,0ptp4l401ktimersoftd/310:51:563
18776993026,3cyclictest41-21ksoftirqd/310:19:533
18776993025,3cyclictest41-21ksoftirqd/307:26:143
18776993024,4cyclictest41-21ksoftirqd/311:13:183
18776993024,4cyclictest41-21ksoftirqd/308:01:463
18775993025,3cyclictest33-21ksoftirqd/210:07:272
18775993025,3cyclictest33-21ksoftirqd/207:18:542
18775993024,4cyclictest33-21ksoftirqd/209:49:092
18775993024,4cyclictest33-21ksoftirqd/209:13:422
18775993024,3cyclictest33-21ksoftirqd/209:40:012
18774993025,3cyclictest25-21ksoftirqd/109:50:181
18773993024,4cyclictest9-21ksoftirqd/007:42:390
139391300,0ptp4l401ktimersoftd/312:32:503
139391300,0ptp4l401ktimersoftd/310:32:373
18776992923,4cyclictest41-21ksoftirqd/312:04:323
18776992923,4cyclictest41-21ksoftirqd/309:55:003
18776992923,4cyclictest41-21ksoftirqd/308:30:073
18775992926,2cyclictest33-21ksoftirqd/212:20:002
18775992924,3cyclictest33-21ksoftirqd/211:52:462
18775992924,3cyclictest33-21ksoftirqd/209:40:172
18775992923,4cyclictest33-21ksoftirqd/209:59:112
18775992918,9cyclictest33-21ksoftirqd/207:20:282
18775992917,9cyclictest33-21ksoftirqd/212:25:282
18773992925,2cyclictest9-21ksoftirqd/012:05:010
139391290,0ptp4l401ktimersoftd/312:13:083
139391290,0ptp4l401ktimersoftd/312:05:253
139391290,0ptp4l401ktimersoftd/311:55:523
18776992824,3cyclictest41-21ksoftirqd/311:23:213
18776992822,4cyclictest41-21ksoftirqd/311:02:433
18775992824,2cyclictest33-21ksoftirqd/212:35:142
18775992823,3cyclictest33-21ksoftirqd/211:45:212
18776992721,4cyclictest41-21ksoftirqd/308:38:253
18775992723,2cyclictest33-21ksoftirqd/212:08:272
18776992621,3cyclictest41-21ksoftirqd/310:55:123
18776992621,3cyclictest41-21ksoftirqd/310:14:103
18776992621,3cyclictest41-21ksoftirqd/308:25:373
18775992622,3cyclictest33-21ksoftirqd/208:35:192
1394912621,2phc2sys41-21ksoftirqd/307:55:203
139391260,0ptp4l401ktimersoftd/310:06:583
18776992521,3cyclictest41-21ksoftirqd/310:48:473
139391250,0ptp4l401ktimersoftd/310:35:263
139391240,0ptp4l401ktimersoftd/307:45:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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