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2025-12-18 - 21:17
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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 Thu Dec 18, 2025 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254582202170,21sleep20-21swapper/207:07:302
139491202168,23phc2sys0-21swapper/307:09:053
253432201168,22sleep10-21swapper/107:06:011
256002200167,22sleep00-21swapper/007:09:210
25942996430,9cyclictest33-21ksoftirqd/208:00:002
25942996331,6cyclictest33-21ksoftirqd/209:40:002
25942996323,7cyclictest33-21ksoftirqd/207:15:232
25942996323,7cyclictest33-21ksoftirqd/207:15:232
139391630,1ptp4l401ktimersoftd/312:01:273
25942996227,8cyclictest33-21ksoftirqd/209:35:002
25942996128,6cyclictest33-21ksoftirqd/211:50:222
25942996030,6cyclictest33-21ksoftirqd/210:50:242
25942996027,5cyclictest33-21ksoftirqd/210:35:232
25942996025,7cyclictest33-21ksoftirqd/208:35:232
25942996023,4cyclictest33-21ksoftirqd/209:30:002
25942996022,7cyclictest33-21ksoftirqd/211:55:182
25942995930,11cyclictest33-21ksoftirqd/210:00:012
25942995921,7cyclictest33-21ksoftirqd/209:10:292
25942995824,5cyclictest33-21ksoftirqd/209:45:002
25942995824,5cyclictest33-21ksoftirqd/209:45:002
25942995820,6cyclictest33-21ksoftirqd/208:00:102
2594199581,55cyclictest0-21swapper/110:35:331
250202580,7sleep1241ktimersoftd/111:35:221
25942995728,9cyclictest33-21ksoftirqd/212:25:262
25942995727,10cyclictest33-21ksoftirqd/207:40:192
25942995725,7cyclictest33-21ksoftirqd/210:20:102
25942995722,5cyclictest33-21ksoftirqd/208:20:152
25942995721,5cyclictest33-21ksoftirqd/211:00:192
223362570,2sleep10-21swapper/111:30:211
139391570,8ptp4l401ktimersoftd/312:33:513
25942995633,7cyclictest33-21ksoftirqd/212:20:182
25942995627,9cyclictest33-21ksoftirqd/210:45:242
25942995624,5cyclictest33-21ksoftirqd/208:15:142
25942995624,5cyclictest33-21ksoftirqd/207:35:192
25942995622,3cyclictest33-21ksoftirqd/208:40:172
25942995620,4cyclictest33-21ksoftirqd/210:15:002
25942995526,9cyclictest33-21ksoftirqd/209:00:002
25942995525,6cyclictest33-21ksoftirqd/211:49:592
25942995524,5cyclictest33-21ksoftirqd/211:10:202
25942995521,5cyclictest33-21ksoftirqd/210:20:002
25942995521,4cyclictest33-21ksoftirqd/207:30:002
139391550,1ptp4l401ktimersoftd/310:53:113
25942995426,7cyclictest33-21ksoftirqd/208:48:132
25942995425,6cyclictest33-21ksoftirqd/212:00:182
25942995423,3cyclictest33-21ksoftirqd/209:05:102
25942995417,5cyclictest33-21ksoftirqd/211:05:122
56992530,2sleep20-21swapper/210:55:202
25942995322,3cyclictest33-21ksoftirqd/208:50:162
25942995320,9cyclictest33-21ksoftirqd/212:17:462
25942995320,6cyclictest33-21ksoftirqd/211:35:152
139391530,1ptp4l401ktimersoftd/307:49:523
2594299525,6cyclictest33-21ksoftirqd/211:40:172
25942995220,5cyclictest33-21ksoftirqd/211:30:202
2594199526,44cyclictest0-21swapper/107:55:331
2594299514,8cyclictest33-21ksoftirqd/209:05:002
25942995123,5cyclictest33-21ksoftirqd/208:05:242
25942995119,8cyclictest33-21ksoftirqd/211:15:232
25942995119,6cyclictest33-21ksoftirqd/208:30:242
25942995117,6cyclictest33-21ksoftirqd/207:35:002
122592510,2sleep00-21swapper/010:00:260
2594299505,6cyclictest33-21ksoftirqd/208:10:162
25942995021,5cyclictest33-21ksoftirqd/209:45:132
25942995016,7cyclictest33-21ksoftirqd/212:05:232
139391500,1ptp4l401ktimersoftd/310:45:383
2594299496,3cyclictest33-21ksoftirqd/210:05:242
2594299493,8cyclictest33-21ksoftirqd/210:25:142
2594299493,6cyclictest33-21ksoftirqd/209:50:182
25942994920,5cyclictest33-21ksoftirqd/212:40:002
25942994917,9cyclictest33-21ksoftirqd/211:23:312
25940994941,5cyclictest7624-21ls07:40:000
2594299486,2cyclictest33-21ksoftirqd/210:30:202
2594299486,2cyclictest33-21ksoftirqd/210:30:202
2594299485,9cyclictest33-21ksoftirqd/209:20:232
2594299485,5cyclictest33-21ksoftirqd/207:20:262
2594299485,3cyclictest33-21ksoftirqd/207:50:202
2594299485,3cyclictest33-21ksoftirqd/207:50:192
2594299484,4cyclictest1833-21kworker/2:010:40:012
2594299483,6cyclictest33-21ksoftirqd/211:25:252
25942994729,9cyclictest33-21ksoftirqd/209:15:002
25942994717,3cyclictest33-21ksoftirqd/207:14:412
139391470,1ptp4l401ktimersoftd/310:41:003
2594299462,4cyclictest33-21ksoftirqd/207:45:142
2594299456,3cyclictest33-21ksoftirqd/210:05:002
2594299454,8cyclictest33-21ksoftirqd/212:10:202
2594299450,3cyclictest33-21ksoftirqd/212:30:142
25940994510,21cyclictest16085-21seq11:17:040
139391450,1ptp4l401ktimersoftd/311:45:473
139391450,0ptp4l401ktimersoftd/309:00:033
2594299441,9cyclictest33-21ksoftirqd/208:25:252
2594299441,9cyclictest33-21ksoftirqd/208:25:252
25943994336,4cyclictest19759-21cron08:05:013
139391430,0ptp4l401ktimersoftd/312:13:323
139391420,0ptp4l401ktimersoftd/308:53:113
25941994019,19cyclictest0-21swapper/108:15:241
25941993933,3cyclictest25-21ksoftirqd/111:20:111
57898380,3rtkit-daemon15608-21grep10:10:143
2841523831,3sleep341-21ksoftirqd/311:45:003
25943993832,4cyclictest41-21ksoftirqd/309:36:303
139391380,1ptp4l401ktimersoftd/307:10:523
25941993731,4cyclictest25-21ksoftirqd/109:01:501
25941993730,5cyclictest25-21ksoftirqd/111:04:251
25941993630,4cyclictest25-21ksoftirqd/112:32:271
25941993630,4cyclictest25-21ksoftirqd/112:26:091
25941993630,4cyclictest25-21ksoftirqd/112:11:291
25941993630,4cyclictest25-21ksoftirqd/111:26:161
25941993630,4cyclictest25-21ksoftirqd/110:24:341
25941993630,4cyclictest25-21ksoftirqd/109:13:131
25941993630,4cyclictest25-21ksoftirqd/108:44:171
25941993614,19cyclictest11357-21sed08:55:011
139391360,1ptp4l401ktimersoftd/310:34:293
139391360,1ptp4l401ktimersoftd/310:34:293
25943993530,3cyclictest41-21ksoftirqd/309:58:223
25943993529,3cyclictest41-21ksoftirqd/309:45:003
25943993529,3cyclictest41-21ksoftirqd/309:45:003
25943993529,3cyclictest41-21ksoftirqd/308:27:583
25943993529,3cyclictest41-21ksoftirqd/308:27:583
25941993530,3cyclictest25-21ksoftirqd/107:45:361
25941993530,3cyclictest25-21ksoftirqd/107:30:121
25941993529,4cyclictest25-21ksoftirqd/112:15:381
25941993529,4cyclictest25-21ksoftirqd/112:06:511
25941993529,4cyclictest25-21ksoftirqd/109:57:341
25941993529,4cyclictest25-21ksoftirqd/109:31:431
25941993528,4cyclictest25-21ksoftirqd/108:33:021
2594199352,30cyclictest1928-21grep07:25:231
25940993528,4cyclictest9-21ksoftirqd/010:40:370
139391350,1ptp4l401ktimersoftd/308:12:013
25943993429,3cyclictest41-21ksoftirqd/307:26:573
25943993428,4cyclictest41-21ksoftirqd/311:11:493
25943993428,4cyclictest41-21ksoftirqd/309:29:243
25943993428,4cyclictest41-21ksoftirqd/308:20:363
25941993429,3cyclictest25-21ksoftirqd/108:00:101
25941993428,4cyclictest25-21ksoftirqd/112:22:401
25941993428,4cyclictest25-21ksoftirqd/111:44:451
25941993428,4cyclictest25-21ksoftirqd/110:28:031
25941993428,4cyclictest25-21ksoftirqd/109:27:171
25941993428,4cyclictest25-21ksoftirqd/109:19:191
25941993414,17cyclictest26434-21date10:30:271
25941993414,17cyclictest26434-21date10:30:261
25940993429,3cyclictest9-21ksoftirqd/010:39:330
25940993429,3cyclictest9-21ksoftirqd/007:55:180
25940993428,4cyclictest9-21ksoftirqd/010:47:470
25940993428,4cyclictest9-21ksoftirqd/007:54:060
25940993428,4cyclictest9-21ksoftirqd/007:54:050
25940993427,4cyclictest6416-21cron08:45:000
25940993415,16cyclictest24124-21users08:10:270
139391340,0ptp4l401ktimersoftd/311:50:133
139391340,0ptp4l401ktimersoftd/307:40:263
25943993327,4cyclictest41-21ksoftirqd/309:10:343
25943993327,4cyclictest41-21ksoftirqd/308:19:563
25941993327,4cyclictest25-21ksoftirqd/112:39:161
25941993327,4cyclictest25-21ksoftirqd/111:49:501
25941993327,4cyclictest25-21ksoftirqd/110:43:351
25941993327,4cyclictest25-21ksoftirqd/109:38:331
25941993327,4cyclictest25-21ksoftirqd/109:21:521
25941993327,4cyclictest25-21ksoftirqd/109:07:201
25941993326,4cyclictest1-21systemd12:03:121
25940993328,3cyclictest9-21ksoftirqd/011:04:390
25940993328,3cyclictest9-21ksoftirqd/010:53:530
25940993327,4cyclictest9-21ksoftirqd/012:02:050
25940993327,4cyclictest9-21ksoftirqd/010:22:560
25940993327,4cyclictest9-21ksoftirqd/009:40:520
25940993327,4cyclictest9-21ksoftirqd/009:40:520
25940993327,4cyclictest9-21ksoftirqd/009:28:040
25940993326,4cyclictest9-21ksoftirqd/009:50:000
25940993326,4cyclictest551-21rs:main0
139391330,1ptp4l391rcuc/310:25:163
25943993227,3cyclictest41-21ksoftirqd/312:37:133
25943993227,3cyclictest41-21ksoftirqd/307:33:523
25943993227,3cyclictest41-21ksoftirqd/307:25:003
25943993226,4cyclictest41-21ksoftirqd/312:07:343
25943993226,4cyclictest41-21ksoftirqd/311:57:353
25941993226,4cyclictest25-21ksoftirqd/111:54:441
25941993226,4cyclictest25-21ksoftirqd/110:12:141
25941993226,4cyclictest25-21ksoftirqd/108:22:431
25941993211,18cyclictest30458-21cut08:25:221
25941993211,18cyclictest30458-21cut08:25:221
25940993227,3cyclictest9-21ksoftirqd/011:25:540
25940993227,3cyclictest9-21ksoftirqd/010:59:270
25940993227,3cyclictest9-21ksoftirqd/008:35:140
25940993226,4cyclictest9-21ksoftirqd/011:22:380
25940993226,4cyclictest9-21ksoftirqd/007:15:390
25940993226,4cyclictest9-21ksoftirqd/007:15:390
25940993210,19cyclictest11960-21grep12:15:250
139391320,10ptp4l401ktimersoftd/310:18:263
139391320,0ptp4l401ktimersoftd/312:20:363
139391320,0ptp4l401ktimersoftd/309:50:203
25943993126,3cyclictest41-21ksoftirqd/310:36:193
25943993126,3cyclictest41-21ksoftirqd/309:45:343
25943993126,3cyclictest41-21ksoftirqd/309:19:093
25943993125,4cyclictest41-21ksoftirqd/312:25:353
25943993125,4cyclictest41-21ksoftirqd/311:05:123
25943993125,4cyclictest41-21ksoftirqd/310:08:073
25943993125,4cyclictest41-21ksoftirqd/308:40:423
25943993125,4cyclictest41-21ksoftirqd/307:18:423
25943993125,4cyclictest41-21ksoftirqd/307:18:423
25941993126,3cyclictest25-21ksoftirqd/109:48:341
25941993126,3cyclictest25-21ksoftirqd/107:15:001
25941993125,4cyclictest25-21ksoftirqd/107:50:291
25941993125,4cyclictest25-21ksoftirqd/107:50:291
25941993125,4cyclictest25-21ksoftirqd/107:42:511
25941993112,16cyclictest2903-21sed08:35:211
2594099317,4cyclictest9373-21cat07:40:260
25940993126,3cyclictest9-21ksoftirqd/010:31:050
25940993126,3cyclictest9-21ksoftirqd/010:31:050
25940993125,4cyclictest9-21ksoftirqd/012:29:490
25940993125,4cyclictest9-21ksoftirqd/010:12:210
25940993125,4cyclictest9-21ksoftirqd/009:56:410
25940993125,4cyclictest9-21ksoftirqd/009:34:580
25940993125,4cyclictest9-21ksoftirqd/008:17:360
25940993125,3cyclictest9-21ksoftirqd/012:30:530
25940993124,4cyclictest9-21ksoftirqd/010:26:090
25940993124,4cyclictest9-21ksoftirqd/009:00:080
139391310,9ptp4l401ktimersoftd/308:39:133
139391310,0ptp4l401ktimersoftd/312:15:263
25943993025,3cyclictest41-21ksoftirqd/311:29:153
25943993025,3cyclictest41-21ksoftirqd/308:56:423
25943993024,4cyclictest41-21ksoftirqd/310:21:433
25941993025,3cyclictest25-21ksoftirqd/108:06:431
25941993024,4cyclictest25-21ksoftirqd/110:50:371
25941993024,4cyclictest25-21ksoftirqd/108:12:401
25941993024,4cyclictest25-21ksoftirqd/107:18:201
25941993024,4cyclictest25-21ksoftirqd/107:18:201
2594099309,18cyclictest24396-21fschecks_time11:35:170
25940993025,3cyclictest9-21ksoftirqd/011:58:470
25940993025,3cyclictest9-21ksoftirqd/011:47:280
25940993013,15cyclictest1760-21sed07:25:210
25940993013,14cyclictest31247-21hwlatdetect07:20:170
25940993011,16cyclictest27804-21irqrtprio08:20:160
25940993010,17cyclictest26421-21fschecks_time07:10:110
25940993010,17cyclictest11669-21expr08:55:130
139391300,0ptp4l401ktimersoftd/311:33:483
25943992924,3cyclictest41-21ksoftirqd/310:01:173
25943992924,3cyclictest41-21ksoftirqd/307:52:093
25943992924,3cyclictest41-21ksoftirqd/307:52:093
25941992923,4cyclictest25-21ksoftirqd/110:17:401
25941992923,4cyclictest25-21ksoftirqd/110:09:051
25940992923,4cyclictest9-21ksoftirqd/011:12:350
25940992923,4cyclictest9-21ksoftirqd/009:53:560
25940992923,4cyclictest9-21ksoftirqd/008:30:000
25940992923,4cyclictest9-21ksoftirqd/008:30:000
25940992912,15cyclictest23466-21apt-get11:35:000
25940992912,14cyclictest18890-21needreboot10:15:200
25940992911,15cyclictest32031-21nfs4_client09:35:220
25940992910,17cyclictest27333-21memory11:40:240
2060422922,3sleep09-21ksoftirqd/012:35:160
139391290,0ptp4l401ktimersoftd/307:56:243
25943992823,3cyclictest41-21ksoftirqd/309:09:293
25943992822,4cyclictest41-21ksoftirqd/308:33:533
2594199286,4cyclictest1768-21irqrtprio11:55:181
25941992822,4cyclictest25-21ksoftirqd/110:00:551
25941992822,4cyclictest25-21ksoftirqd/109:44:181
25941992822,4cyclictest25-21ksoftirqd/109:44:181
2594099289,16cyclictest1608-21latency_hist08:35:000
25940992823,3cyclictest9-21ksoftirqd/012:12:440
25940992823,3cyclictest9-21ksoftirqd/010:06:310
25940992823,3cyclictest9-21ksoftirqd/008:07:330
25940992823,3cyclictest9-21ksoftirqd/007:47:520
25940992823,3cyclictest9-21ksoftirqd/007:31:140
25940992822,4cyclictest9-21ksoftirqd/008:46:540
139391280,0ptp4l401ktimersoftd/311:16:483
139391280,0ptp4l401ktimersoftd/308:05:163
25943992722,3cyclictest41-21ksoftirqd/311:21:493
25943992721,4cyclictest41-21ksoftirqd/308:49:563
25943992721,3cyclictest41-21ksoftirqd/307:38:293
2594199278,3cyclictest14577-21df_inode11:15:151
2594199278,3cyclictest11937-21ls08:55:161
2594199276,3cyclictest1532-21unixbench_multi10:45:261
25941992721,4cyclictest25-21ksoftirqd/111:09:511
25941992721,4cyclictest25-21ksoftirqd/107:36:421
25941992721,3cyclictest25-21ksoftirqd/110:57:161
2594199270,9cyclictest8102-21latency_hist09:55:011
2594099278,3cyclictest17907-21expr08:00:130
2594099277,3cyclictest10478-21grep11:05:220
2594099274,4cyclictest9565-21cut08:50:160
25940992722,3cyclictest9-21ksoftirqd/009:17:520
25940992721,4cyclictest9-21ksoftirqd/012:06:300
25940992721,3cyclictest9-21ksoftirqd/012:22:340
25943992621,3cyclictest41-21ksoftirqd/311:36:213
2594199265,4cyclictest7683-21load08:45:191
2594099266,3cyclictest0-21swapper/011:50:190
25940992621,3cyclictest9-21ksoftirqd/009:09:090
139391260,0ptp4l401ktimersoftd/311:02:293
25943992520,3cyclictest41-21ksoftirqd/309:30:133
25943992520,3cyclictest41-21ksoftirqd/309:21:443
25941992519,4cyclictest25-21ksoftirqd/111:11:271
25941992519,4cyclictest25-21ksoftirqd/107:21:091
2594099255,3cyclictest18578-21cat09:10:120
139391240,0ptp4l401ktimersoftd/310:55:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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