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2026-05-15 - 19:19
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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 rackdslot1.osadl.org (updated Fri May 15, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491620,17ptp4l0-21swapper/008:25:170
134491600,3ptp4l0-21swapper/308:20:243
134491580,4ptp4l0-21swapper/112:35:151
134491570,3ptp4l26802-21apt-get07:15:130
134491570,3ptp4l1341-21ls12:05:210
134491560,4ptp4l0-21swapper/111:00:141
134491560,3ptp4l0-21swapper/112:00:131
134491560,3ptp4l0-21swapper/109:45:191
134491550,4ptp4l28541-21processes10:45:240
134491550,4ptp4l0-21swapper/011:23:290
134491550,3ptp4l0-21swapper/007:32:150
134491540,3ptp4l0-21swapper/207:27:352
134491530,4ptp4l0-21swapper/012:15:150
134491530,4ptp4l0-21swapper/012:15:150
134491530,3ptp4l0-21swapper/308:55:253
134491530,15ptp4l12520-21ls10:10:283
134491520,5ptp4l0-21swapper/007:08:350
134491520,4ptp4l0-21swapper/112:29:301
134491520,4ptp4l0-21swapper/008:01:120
134491520,4ptp4l0-21swapper/007:55:450
134491520,4ptp4l0-21swapper/007:55:450
134491520,3ptp4l0-21swapper/107:15:261
134491510,4ptp4l0-21swapper/209:36:162
134491510,4ptp4l0-21swapper/110:26:291
134491510,4ptp4l0-21swapper/107:28:431
134491510,4ptp4l0-21swapper/009:28:430
134491510,3ptp4l0-21swapper/209:25:502
134491510,3ptp4l0-21swapper/112:34:511
134491510,3ptp4l0-21swapper/011:52:330
134491510,3ptp4l0-21swapper/011:16:370
134491510,2ptp4l22340-21/usr/sbin/munin08:15:200
134491510,10ptp4l22873-21meminfo07:05:191
134491500,4ptp4l0-21swapper/209:56:462
134491500,4ptp4l0-21swapper/108:33:451
134491500,4ptp4l0-21swapper/012:30:430
134491500,4ptp4l0-21swapper/010:15:570
134491500,4ptp4l0-21swapper/009:30:230
134491500,4ptp4l0-21swapper/009:30:230
134491500,3ptp4l0-21swapper/208:20:262
134491500,3ptp4l0-21swapper/009:43:060
134491490,4ptp4l0-21swapper/112:08:351
134491490,4ptp4l0-21swapper/010:44:090
134491490,4ptp4l0-21swapper/008:06:160
134491490,3ptp4l0-21swapper/208:57:522
134491490,3ptp4l0-21swapper/012:04:420
134491480,4ptp4l0-21swapper/109:52:431
134491480,4ptp4l0-21swapper/011:43:480
134491480,4ptp4l0-21swapper/007:20:310
134491480,3ptp4l0-21swapper/112:10:271
134491480,3ptp4l0-21swapper/108:19:491
134491480,3ptp4l0-21swapper/007:13:070
24260994732,13cyclictest33-21ksoftirqd/211:15:292
2426099471,44cyclictest0-21swapper/208:15:192
134491470,4ptp4l0-21swapper/107:43:421
134491470,4ptp4l0-21swapper/007:28:170
134491470,3ptp4l0-21swapper/008:42:380
134491460,9ptp4l15781-21apt-get10:20:113
134491460,3ptp4l0-21swapper/108:37:171
134491460,11ptp4l0-21swapper/310:51:433
134491450,5ptp4l0-21swapper/012:25:190
134491450,4ptp4l0-21swapper/212:35:002
134491450,4ptp4l0-21swapper/011:30:120
134491450,4ptp4l0-21swapper/008:23:100
134491450,4ptp4l0-21swapper/007:39:380
134491450,3ptp4l0-21swapper/110:00:411
134491450,3ptp4l0-21swapper/008:35:290
134491440,9ptp4l0-21swapper/209:11:122
134491440,9ptp4l0-21swapper/011:27:110
134491440,9ptp4l0-21swapper/011:06:370
134491440,4ptp4l0-21swapper/009:18:580
134491440,3ptp4l0-21swapper/109:22:021
134491440,3ptp4l0-21swapper/109:05:091
134491440,2ptp4l0-21swapper/011:58:200
134491440,11ptp4l0-21swapper/310:38:403
134491440,11ptp4l0-21swapper/007:45:160
134491440,10ptp4l0-21swapper/212:37:422
134491440,10ptp4l0-21swapper/110:55:131
134491440,10ptp4l0-21swapper/110:55:131
134491430,9ptp4l0-21swapper/308:47:093
134491430,9ptp4l0-21swapper/210:20:502
134491430,9ptp4l0-21swapper/208:45:102
134491430,9ptp4l0-21swapper/208:37:412
134491430,5ptp4l0-21swapper/212:25:112
134491430,4ptp4l14248-21apt-get12:35:100
134491430,3ptp4l0-21swapper/210:29:442
134491430,3ptp4l0-21swapper/107:33:151
134491430,3ptp4l0-21swapper/007:40:530
134491430,10ptp4l0-21swapper/207:24:352
2426099424,36cyclictest3768-21kworker/2:007:45:282
24260994237,3cyclictest33-21ksoftirqd/209:55:012
24259994237,3cyclictest15328-21basename10:20:001
134491420,9ptp4l0-21swapper/212:17:112
134491420,9ptp4l0-21swapper/212:17:102
134491420,9ptp4l0-21swapper/210:43:052
134491420,9ptp4l0-21swapper/207:10:572
134491420,8ptp4l0-21swapper/212:20:122
134491420,5ptp4l553-21ntp_states10:55:223
134491420,5ptp4l553-21ntp_states10:55:223
134491420,4ptp4l8697-21apt-get08:55:111
134491420,4ptp4l21011-21apt-get11:40:133
134491420,4ptp4l0-21swapper/010:00:210
134491420,3ptp4l0-21swapper/008:13:020
134491420,10ptp4l0-21swapper/207:30:402
24260994136,3cyclictest33-21ksoftirqd/210:15:002
134491410,9ptp4l0-21swapper/211:51:532
134491410,9ptp4l0-21swapper/211:21:532
134491410,5ptp4l5878-21users11:05:271
134491410,5ptp4l12495-21ntp_states11:20:221
134491410,5ptp4l0-21swapper/312:05:153
134491410,5ptp4l0-21swapper/209:15:122
134491410,5ptp4l0-21swapper/110:20:151
134491410,5ptp4l0-21swapper/011:10:150
134491410,5ptp4l0-21swapper/009:35:280
134491410,4ptp4l9574-21ls07:45:211
134491410,4ptp4l31735-21apt-get09:45:120
134491410,4ptp4l20228-21apt-get09:20:120
134491410,4ptp4l1916-21hddtemp_smartct08:40:161
134491410,4ptp4l18476-21iostat_ios09:15:181
134491410,4ptp4l16885-21ls08:00:252
134491410,4ptp4l14985-21users09:05:290
134491410,4ptp4l0-21swapper/308:54:403
134491410,4ptp4l0-21swapper/210:35:212
134491410,4ptp4l0-21swapper/209:40:132
134491410,4ptp4l0-21swapper/010:35:120
134491410,4ptp4l0-21swapper/007:51:530
134491410,3ptp4l28067-21meminfo09:35:203
134491410,3ptp4l2318-21gnome-shell08:01:581
134491410,3ptp4l22670-21apt-get10:35:131
134491410,3ptp4l1478-21apt-get08:40:112
134491410,3ptp4l13249-21apt-get10:15:112
134491410,3ptp4l11019-21apt-get09:00:120
24260994035,3cyclictest33-21ksoftirqd/208:30:132
24260994027,10cyclictest33-21ksoftirqd/208:50:272
134491400,6ptp4l0-21swapper/108:29:511
134491400,5ptp4l24572-21taskset08:20:003
134491400,5ptp4l0-21swapper/307:20:213
134491400,5ptp4l0-21swapper/211:40:112
134491400,5ptp4l0-21swapper/209:08:042
134491400,5ptp4l0-21swapper/208:25:222
134491400,5ptp4l0-21swapper/111:35:131
134491400,5ptp4l0-21swapper/008:50:150
134491400,5ptp4l0-21swapper/008:45:220
134491400,4ptp4l9223-21iostat10:05:170
134491400,4ptp4l9-21ksoftirqd/011:00:150
134491400,4ptp4l6153-21ntp_states12:15:231
134491400,4ptp4l6153-21ntp_states12:15:231
134491400,4ptp4l41-21ksoftirqd/307:40:473
134491400,4ptp4l27598-21diskstats10:45:151
134491400,4ptp4l20678-21df_inode10:30:140
134491400,4ptp4l15563-21users11:25:291
134491400,4ptp4l0-21swapper/312:30:003
134491400,4ptp4l0-21swapper/312:24:193
134491400,4ptp4l0-21swapper/310:15:263
134491400,4ptp4l0-21swapper/309:20:203
134491400,4ptp4l0-21swapper/212:10:062
134491400,4ptp4l0-21swapper/211:00:492
134491400,4ptp4l0-21swapper/210:55:172
134491400,4ptp4l0-21swapper/210:55:172
134491400,4ptp4l0-21swapper/111:40:141
134491400,4ptp4l0-21swapper/009:59:360
134491400,4ptp4l0-21swapper/009:50:250
134491400,3ptp4l32186-21df_inode10:55:140
134491400,3ptp4l32186-21df_inode10:55:140
134491400,3ptp4l28751-21irqstats11:55:191
134491400,3ptp4l25840-21irqstats10:40:201
134491400,3ptp4l11906-21memory10:10:210
134491400,3ptp4l0-21swapper/108:45:191
24260993935,2cyclictest33-21ksoftirqd/211:40:012
24260993935,2cyclictest33-21ksoftirqd/207:40:182
134491390,5ptp4l4120-21cpuspeed_turbos09:55:131
134491390,5ptp4l1301-21snmpd07:09:462
134491390,5ptp4l0-21swapper/311:55:243
134491390,4ptp4l19689-21ps11:35:230
134491390,4ptp4l0-21swapper/312:35:133
134491390,4ptp4l0-21swapper/311:02:333
134491390,4ptp4l0-21swapper/310:48:173
134491390,4ptp4l0-21swapper/310:00:193
134491390,4ptp4l0-21swapper/309:55:013
134491390,4ptp4l0-21swapper/308:00:243
134491390,4ptp4l0-21swapper/307:30:193
134491390,4ptp4l0-21swapper/212:05:332
134491390,4ptp4l0-21swapper/212:00:452
134491390,4ptp4l0-21swapper/211:55:232
134491390,4ptp4l0-21swapper/211:45:292
134491390,4ptp4l0-21swapper/211:31:472
134491390,4ptp4l0-21swapper/211:13:292
134491390,4ptp4l0-21swapper/210:48:152
134491390,4ptp4l0-21swapper/210:30:112
134491390,4ptp4l0-21swapper/210:08:132
134491390,4ptp4l0-21swapper/210:00:042
134491390,4ptp4l0-21swapper/209:49:452
134491390,4ptp4l0-21swapper/209:32:232
134491390,4ptp4l0-21swapper/209:32:222
134491390,4ptp4l0-21swapper/209:01:332
134491390,4ptp4l0-21swapper/208:14:202
134491390,4ptp4l0-21swapper/208:05:142
134491390,4ptp4l0-21swapper/207:57:242
134491390,4ptp4l0-21swapper/207:57:242
134491390,4ptp4l0-21swapper/207:51:382
134491390,4ptp4l0-21swapper/207:35:172
134491390,4ptp4l0-21swapper/207:18:262
134491390,4ptp4l0-21swapper/111:45:191
134491390,4ptp4l0-21swapper/111:33:221
134491390,4ptp4l0-21swapper/111:15:161
134491390,4ptp4l0-21swapper/110:51:351
134491390,4ptp4l0-21swapper/110:34:591
134491390,4ptp4l0-21swapper/110:05:131
134491390,4ptp4l0-21swapper/109:28:591
134491390,4ptp4l0-21swapper/108:50:191
134491390,4ptp4l0-21swapper/012:10:210
134491390,4ptp4l0-21swapper/011:45:230
134491390,4ptp4l0-21swapper/010:28:290
134491390,4ptp4l0-21swapper/010:21:470
134491390,4ptp4l0-21swapper/009:10:140
134491390,4ptp4l0-21swapper/008:55:380
134491390,4ptp4l0-21swapper/008:30:260
134491390,3ptp4l7928-21iostat12:20:190
134491390,3ptp4l28461-21python09:35:251
134491390,3ptp4l11061-21df07:50:131
134491390,3ptp4l0-21swapper/210:50:222
134491390,3ptp4l0-21swapper/209:20:142
2426199387,30cyclictest0-21swapper/309:11:293
24260993833,3cyclictest33-21ksoftirqd/211:25:402
134491380,5ptp4l0-21swapper/112:20:251
134491380,4ptp4l8156-21head11:10:271
134491380,4ptp4l11926-21cat09:00:203
134491380,4ptp4l0-21swapper/312:31:353
134491380,4ptp4l0-21swapper/312:16:553
134491380,4ptp4l0-21swapper/312:16:553
134491380,4ptp4l0-21swapper/311:50:233
134491380,4ptp4l0-21swapper/311:37:353
134491380,4ptp4l0-21swapper/311:23:353
134491380,4ptp4l0-21swapper/311:17:453
134491380,4ptp4l0-21swapper/311:13:053
134491380,4ptp4l0-21swapper/310:40:303
134491380,4ptp4l0-21swapper/310:29:553
134491380,4ptp4l0-21swapper/309:45:273
134491380,4ptp4l0-21swapper/309:42:503
134491380,4ptp4l0-21swapper/309:25:303
134491380,4ptp4l0-21swapper/308:40:153
134491380,4ptp4l0-21swapper/307:50:393
134491380,4ptp4l0-21swapper/307:35:173
134491380,4ptp4l0-21swapper/307:29:353
134491380,4ptp4l0-21swapper/307:18:393
134491380,4ptp4l0-21swapper/307:10:213
134491380,4ptp4l0-21swapper/211:06:412
134491380,4ptp4l0-21swapper/109:32:171
134491380,4ptp4l0-21swapper/109:32:171
134491380,4ptp4l0-21swapper/109:10:231
134491380,4ptp4l0-21swapper/109:00:131
134491380,4ptp4l0-21swapper/108:10:211
134491380,4ptp4l0-21swapper/107:20:451
134491380,4ptp4l0-21swapper/107:10:271
134491380,4ptp4l0-21swapper/010:52:310
134491380,3ptp4l4666-21ls07:35:191
134491380,3ptp4l21867-21sed10:30:263
134491380,3ptp4l18189-21hddtemp_smartct08:05:151
134491380,3ptp4l1301-21snmpd08:07:213
134491380,2ptp4l121rcu_preempt09:33:393
134491380,2ptp4l121rcu_preempt09:33:393
134491370,4ptp4l0-21swapper/311:45:443
134491370,4ptp4l0-21swapper/311:27:093
134491370,4ptp4l0-21swapper/309:15:143
134491370,4ptp4l0-21swapper/309:08:213
134491370,4ptp4l0-21swapper/308:10:143
134491370,4ptp4l0-21swapper/307:47:243
134491370,4ptp4l0-21swapper/110:13:541
134491370,4ptp4l0-21swapper/108:22:271
134491370,3ptp4l13301-21grep07:55:131
134491370,3ptp4l13301-21grep07:55:131
134491370,3ptp4l0-21swapper/312:04:113
134491370,3ptp4l0-21swapper/311:08:493
134491370,3ptp4l0-21swapper/111:50:281
134491370,3ptp4l0-21swapper/109:42:441
46198360,3rtkit-daemon0-21swapper/307:56:213
46198360,3rtkit-daemon0-21swapper/307:56:213
134491360,4ptp4l0-21swapper/312:13:033
134491360,3ptp4l28542-21ls08:25:273
134491360,3ptp4l0-21swapper/310:07:103
134491360,3ptp4l0-21swapper/309:55:233
2426199353,6cyclictest31568-21apt-get08:35:133
134491320,4ptp4l0-21swapper/307:09:513
134491310,3ptp4l0-21swapper/311:33:403
134491300,3ptp4l0-21swapper/308:31:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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