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2026-01-04 - 17:32
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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 rackdslot1.osadl.org (updated Sun Jan 04, 2026 12:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2996021780,6sleep11501899cyclictest10:00:201
450721450,3sleep00-21swapper/010:15:190
79621210,4sleep30-21swapper/311:15:233
114282660,5sleep311430-21irqrtprio08:10:173
134491590,4ptp4l0-21swapper/108:00:161
134491580,3ptp4l0-21swapper/010:55:140
134491580,16ptp4l12331-21ls11:40:210
134491580,16ptp4l12331-21ls11:40:210
134491570,3ptp4l0-21swapper/009:32:310
134491560,5ptp4l0-21swapper/007:25:110
134491560,4ptp4l0-21swapper/308:30:143
134491560,3ptp4l0-21swapper/010:25:200
134491560,3ptp4l0-21swapper/009:50:250
134491550,4ptp4l0-21swapper/111:12:111
134491550,3ptp4l18858-21ls07:15:280
134491550,3ptp4l0-21swapper/211:12:192
134491550,10ptp4l0-21swapper/111:05:131
134491540,4ptp4l0-21swapper/310:58:073
134491530,4ptp4l0-21swapper/109:39:041
134491530,4ptp4l0-21swapper/010:50:230
134491530,3ptp4l0-21swapper/012:32:240
134491520,4ptp4l0-21swapper/207:30:382
134491520,4ptp4l0-21swapper/109:49:311
134491520,4ptp4l0-21swapper/008:50:160
134491520,3ptp4l0-21swapper/311:44:333
134491520,3ptp4l0-21swapper/311:44:323
134491510,4ptp4l0-21swapper/108:46:111
134491510,4ptp4l0-21swapper/108:12:341
134491510,4ptp4l0-21swapper/008:12:530
134491510,4ptp4l0-21swapper/007:55:150
134491510,3ptp4l18271-21/usr/sbin/munin11:55:250
134491510,3ptp4l0-21swapper/108:09:201
134491510,2ptp4l0-21swapper/109:05:191
134491510,12ptp4l0-21swapper/111:47:001
134491500,4ptp4l0-21swapper/308:48:533
134491500,4ptp4l0-21swapper/212:05:102
134491500,3ptp4l7683-21users08:00:290
134491500,3ptp4l0-21swapper/012:25:290
134491500,3ptp4l0-21swapper/011:30:260
134491490,4ptp4l0-21swapper/111:54:081
134491490,4ptp4l0-21swapper/107:34:351
134491490,4ptp4l0-21swapper/012:00:320
134491490,4ptp4l0-21swapper/011:11:480
134491490,3ptp4l337-21switchtime08:55:260
134491490,3ptp4l0-21swapper/012:10:350
134491490,3ptp4l0-21swapper/011:26:130
134491490,3ptp4l0-21swapper/009:15:280
134491490,11ptp4l0-21swapper/110:16:201
134491480,4ptp4l0-21swapper/209:11:322
134491480,4ptp4l0-21swapper/111:19:161
134491480,4ptp4l0-21swapper/010:42:340
134491480,4ptp4l0-21swapper/010:20:250
134491480,4ptp4l0-21swapper/009:41:450
134491480,4ptp4l0-21swapper/008:47:360
134491480,3ptp4l0-21swapper/209:38:392
134491480,3ptp4l0-21swapper/011:01:070
134491480,11ptp4l0-21swapper/107:29:251
134491470,8ptp4l0-21swapper/210:20:002
134491470,4ptp4l0-21swapper/109:32:541
134491470,4ptp4l0-21swapper/107:40:171
134491470,4ptp4l0-21swapper/012:35:410
134491470,4ptp4l0-21swapper/010:05:340
134491470,3ptp4l0-21swapper/211:45:532
134491470,3ptp4l0-21swapper/112:00:571
134491470,3ptp4l0-21swapper/110:58:141
15019994632,12cyclictest33-21ksoftirqd/210:54:592
15018994641,3cyclictest25-21ksoftirqd/110:40:001
134491460,4ptp4l0-21swapper/008:36:530
134491460,3ptp4l0-21swapper/007:39:500
134491460,3ptp4l0-21swapper/007:39:500
134491460,11ptp4l0-21swapper/109:26:081
134491450,4ptp4l0-21swapper/109:21:341
134491450,4ptp4l0-21swapper/008:26:060
134491450,3ptp4l0-21swapper/309:18:093
134491450,3ptp4l0-21swapper/308:19:393
134491450,3ptp4l0-21swapper/111:22:331
134491450,3ptp4l0-21swapper/011:36:070
134491450,3ptp4l0-21swapper/010:45:130
134491440,9ptp4l0-21swapper/210:06:582
134491440,4ptp4l26798-21apt-get07:35:131
134491440,4ptp4l26798-21apt-get07:35:131
134491440,4ptp4l12916-21apt-get08:15:142
134491440,4ptp4l0-21swapper/210:55:052
134491440,4ptp4l0-21swapper/009:28:380
134491440,3ptp4l0-21swapper/310:26:573
134491440,3ptp4l0-21swapper/111:36:071
1501999430,2cyclictest121rcu_preempt10:25:182
134491430,9ptp4l0-21swapper/207:28:442
134491430,5ptp4l0-21swapper/209:05:282
134491430,5ptp4l0-21swapper/007:08:520
134491430,3ptp4l0-21swapper/107:50:221
134491430,2ptp4l121rcu_preempt12:14:383
134491430,12ptp4l9-21ksoftirqd/007:42:590
134491430,10ptp4l0-21swapper/207:40:052
134491430,10ptp4l0-21swapper/108:29:481
134491420,9ptp4l0-21swapper/211:52:512
134491420,9ptp4l0-21swapper/211:05:052
134491420,9ptp4l0-21swapper/207:49:252
134491420,8ptp4l0-21swapper/207:22:492
134491420,5ptp4l0-21swapper/311:00:133
134491420,4ptp4l4391-21apt-get11:25:111
134491420,4ptp4l28081-21iostat12:15:231
134491420,4ptp4l26149-21meminfo11:00:221
134491420,4ptp4l15618-21iostat_ios07:10:181
134491420,4ptp4l13616-21apt-get11:45:120
134491420,3ptp4l0-21swapper/012:23:500
134491420,3ptp4l0-21swapper/012:18:370
15018994136,2cyclictest25-21ksoftirqd/109:45:001
15018994134,4cyclictest25-21ksoftirqd/110:45:201
1501899412,2cyclictest0-21swapper/108:36:391
134491410,9ptp4l0-21swapper/210:32:122
134491410,8ptp4l0-21swapper/212:13:552
134491410,5ptp4l32374-21memory07:45:211
134491410,5ptp4l11464-21/usr/sbin/munin08:10:192
134491410,5ptp4l0-21swapper/310:50:203
134491410,5ptp4l0-21swapper/212:35:022
134491410,5ptp4l0-21swapper/009:20:170
134491410,5ptp4l0-21swapper/008:40:140
134491410,5ptp4l0-21swapper/007:45:120
134491410,4ptp4l602-21ls11:15:200
134491410,4ptp4l5965-21python12:35:281
134491410,4ptp4l28169-21ntp_states09:55:240
134491410,4ptp4l0-21swapper/210:45:582
134491410,4ptp4l0-21swapper/112:20:051
134491410,4ptp4l0-21swapper/110:24:581
134491410,3ptp4l31228-21ls11:10:273
134491410,3ptp4l25200-21apt-get11:00:132
134491410,3ptp4l2054-21apt-get12:30:142
134491410,3ptp4l17604-21apt-get08:25:112
134491410,3ptp4l11311-21apt-get11:40:121
134491410,3ptp4l11311-21apt-get11:40:121
134491410,3ptp4l0-21swapper/311:47:133
15018994035,3cyclictest25-21ksoftirqd/108:20:261
15018994034,3cyclictest25-21ksoftirqd/112:30:211
134491400,6ptp4l14618-21sed10:35:213
134491400,5ptp4l17784-21hddtemp_smartct07:15:181
134491400,5ptp4l0-21swapper/310:40:123
134491400,5ptp4l0-21swapper/308:25:133
134491400,4ptp4l25235-21memory07:30:190
134491400,4ptp4l23861-21memory12:05:210
134491400,4ptp4l18776-21memory09:35:220
134491400,4ptp4l0-21swapper/212:28:592
134491400,4ptp4l0-21swapper/212:15:212
134491400,4ptp4l0-21swapper/210:36:142
134491400,4ptp4l0-21swapper/209:27:322
134491400,4ptp4l0-21swapper/208:33:582
134491400,4ptp4l0-21swapper/207:59:592
134491400,4ptp4l0-21swapper/111:30:191
134491400,4ptp4l0-21swapper/109:10:121
134491400,4ptp4l0-21swapper/011:20:210
134491400,4ptp4l0-21swapper/009:10:120
134491400,3ptp4l29128-21apt-get08:50:111
134491400,3ptp4l17000-21ls11:50:210
134491400,3ptp4l16182-21df10:40:141
134491400,1ptp4l0-21swapper/107:23:481
15019993933,4cyclictest28583-21kworker/2:210:20:152
134491390,6ptp4l0-21swapper/307:05:023
134491390,6ptp4l0-21swapper/007:53:350
134491390,5ptp4l25-21ksoftirqd/107:58:201
134491390,5ptp4l10309-21chrt08:09:252
134491390,5ptp4l0-21swapper/310:12:333
134491390,5ptp4l0-21swapper/109:15:241
134491390,5ptp4l0-21swapper/107:05:241
134491390,4ptp4l20704-21expr10:50:151
134491390,4ptp4l15996-21meminfo07:10:210
134491390,4ptp4l15731-21hddtemp_smartct08:20:160
134491390,4ptp4l14394-21ls08:15:280
134491390,4ptp4l0-21swapper/312:35:273
134491390,4ptp4l0-21swapper/310:15:213
134491390,4ptp4l0-21swapper/310:09:183
134491390,4ptp4l0-21swapper/309:27:323
134491390,4ptp4l0-21swapper/308:35:213
134491390,4ptp4l0-21swapper/308:23:433
134491390,4ptp4l0-21swapper/307:50:583
134491390,4ptp4l0-21swapper/212:21:542
134491390,4ptp4l0-21swapper/212:00:212
134491390,4ptp4l0-21swapper/211:56:352
134491390,4ptp4l0-21swapper/211:43:512
134491390,4ptp4l0-21swapper/211:43:512
134491390,4ptp4l0-21swapper/211:31:182
134491390,4ptp4l0-21swapper/211:22:252
134491390,4ptp4l0-21swapper/211:18:402
134491390,4ptp4l0-21swapper/210:00:382
134491390,4ptp4l0-21swapper/209:57:032
134491390,4ptp4l0-21swapper/209:45:462
134491390,4ptp4l0-21swapper/209:33:482
134491390,4ptp4l0-21swapper/209:19:002
134491390,4ptp4l0-21swapper/209:02:002
134491390,4ptp4l0-21swapper/208:59:052
134491390,4ptp4l0-21swapper/208:54:362
134491390,4ptp4l0-21swapper/208:48:532
134491390,4ptp4l0-21swapper/208:44:552
134491390,4ptp4l0-21swapper/208:24:442
134491390,4ptp4l0-21swapper/208:02:272
134491390,4ptp4l0-21swapper/207:53:252
134491390,4ptp4l0-21swapper/207:37:562
134491390,4ptp4l0-21swapper/207:37:562
134491390,4ptp4l0-21swapper/207:15:582
134491390,4ptp4l0-21swapper/112:05:131
134491390,4ptp4l0-21swapper/110:10:251
134491390,4ptp4l0-21swapper/110:05:151
134491390,4ptp4l0-21swapper/109:55:171
134491390,4ptp4l0-21swapper/109:54:361
134491390,4ptp4l0-21swapper/109:03:441
134491390,4ptp4l0-21swapper/108:34:111
134491390,4ptp4l0-21swapper/011:05:160
134491390,4ptp4l0-21swapper/010:30:030
134491390,4ptp4l0-21swapper/010:15:000
134491390,4ptp4l0-21swapper/010:00:190
134491390,4ptp4l0-21swapper/009:00:160
134491390,4ptp4l0-21swapper/008:05:290
134491390,3ptp4l9618-21irqstats10:25:181
134491390,3ptp4l31854-21hddtemp_smartct08:55:151
134491390,3ptp4l25776-21iostat12:10:171
134491390,3ptp4l19237-21memory11:55:231
134491390,3ptp4l14014-21hddtemp_smartct10:35:170
134491390,3ptp4l10831-21apt-get10:30:011
134491390,3ptp4l10643-21apt-get09:20:112
134491390,3ptp4l0-21swapper/210:10:462
134491390,3ptp4l0-21swapper/209:40:072
134491390,3ptp4l0-21swapper/009:05:220
15019993832,4cyclictest33-21ksoftirqd/211:35:112
134491380,4ptp4l0-21swapper/311:53:553
134491380,4ptp4l0-21swapper/311:08:413
134491380,4ptp4l0-21swapper/310:22:483
134491380,4ptp4l0-21swapper/309:42:263
134491380,4ptp4l0-21swapper/309:39:543
134491380,4ptp4l0-21swapper/309:14:593
134491380,4ptp4l0-21swapper/309:01:523
134491380,4ptp4l0-21swapper/308:50:243
134491380,4ptp4l0-21swapper/308:40:063
134491380,4ptp4l0-21swapper/308:04:383
134491380,4ptp4l0-21swapper/307:57:063
134491380,4ptp4l0-21swapper/307:49:183
134491380,4ptp4l0-21swapper/307:37:413
134491380,4ptp4l0-21swapper/307:37:413
134491380,4ptp4l0-21swapper/211:26:292
134491380,4ptp4l0-21swapper/210:42:222
134491380,4ptp4l0-21swapper/209:54:132
134491380,4ptp4l0-21swapper/112:25:251
134491380,4ptp4l0-21swapper/108:40:101
134491380,4ptp4l0-21swapper/008:30:200
134491380,3ptp4l0-21swapper/311:36:303
134491380,3ptp4l0-21swapper/309:22:503
134491380,3ptp4l0-21swapper/307:41:593
134491380,3ptp4l0-21swapper/208:36:392
134491380,3ptp4l0-21swapper/207:10:072
15020993732,3cyclictest41-21ksoftirqd/307:10:113
134491370,4ptp4l0-21swapper/312:25:233
134491370,4ptp4l0-21swapper/311:25:213
134491370,4ptp4l0-21swapper/309:57:563
134491370,4ptp4l0-21swapper/309:47:543
134491370,4ptp4l0-21swapper/307:21:233
134491370,4ptp4l0-21swapper/307:18:313
134491370,3ptp4l23485-21ls07:25:273
134491370,3ptp4l0-21swapper/312:08:223
134491370,3ptp4l0-21swapper/312:04:173
134491370,3ptp4l0-21swapper/311:22:253
134491370,3ptp4l0-21swapper/310:48:583
134491370,3ptp4l0-21swapper/309:08:423
134491370,3ptp4l0-21swapper/108:15:251
134491370,3ptp4l0-21swapper/009:47:480
134491370,3ptp4l0-21swapper/007:20:010
134491360,5ptp4l0-21swapper/207:05:022
134491360,4ptp4l0-21swapper/312:21:543
134491360,4ptp4l0-21swapper/311:33:463
134491360,4ptp4l0-21swapper/310:32:353
134491360,4ptp4l0-21swapper/308:06:233
134491360,3ptp4l0-21swapper/312:30:153
134491360,3ptp4l0-21swapper/308:57:133
134491360,2ptp4l0-21swapper/307:31:293
134491350,3ptp4l0-21swapper/311:56:393
134491350,3ptp4l0-21swapper/309:31:373
134491340,3ptp4l0-21swapper/312:15:103
134491340,3ptp4l0-21swapper/309:51:363
15020993328,3cyclictest41-21ksoftirqd/310:01:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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