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2026-11-14 - 02:18
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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 792 highest latencies:
System rackdslot1.osadl.org (updated Fri Nov 13, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283312660,5sleep00-21swapper/011:30:160
134491630,4ptp4l0-21swapper/110:45:161
134491620,21ptp4l5546-21memory11:50:221
134491610,4ptp4l0-21swapper/308:57:353
134491610,3ptp4l0-21swapper/311:18:263
134491590,4ptp4l0-21swapper/109:20:141
134491580,5ptp4l0-21swapper/008:45:170
134491580,3ptp4l0-21swapper/009:20:150
134491570,5ptp4l0-21swapper/209:46:582
134491570,4ptp4l0-21swapper/111:13:181
134491570,4ptp4l0-21swapper/108:15:191
134491570,4ptp4l0-21swapper/010:00:180
134491570,3ptp4l21850-21ls08:55:240
134491570,3ptp4l0-21swapper/009:30:170
134491560,3ptp4l0-21swapper/007:18:580
134491550,4ptp4l0-21swapper/308:20:253
134491550,4ptp4l0-21swapper/008:25:170
134491540,8ptp4l0-21swapper/210:53:282
134491540,4ptp4l0-21swapper/108:27:491
134491540,4ptp4l0-21swapper/012:20:220
134491540,3ptp4l0-21swapper/208:07:362
134491530,4ptp4l0-21swapper/207:05:492
134491530,4ptp4l0-21swapper/112:25:231
134491530,3ptp4l0-21swapper/312:02:523
134491530,3ptp4l0-21swapper/310:50:153
134491530,3ptp4l0-21swapper/108:58:331
134491530,11ptp4l0-21swapper/309:54:373
134491530,10ptp4l2060-21diskstats07:05:133
134491520,5ptp4l0-21swapper/110:30:131
134491520,5ptp4l0-21swapper/012:10:220
134491520,4ptp4l0-21swapper/211:31:452
134491520,4ptp4l0-21swapper/209:26:272
134491520,4ptp4l0-21swapper/209:15:502
134491520,4ptp4l0-21swapper/207:55:442
134491520,4ptp4l0-21swapper/109:41:531
134491520,3ptp4l0-21swapper/312:05:493
134491520,3ptp4l0-21swapper/209:59:442
134491520,3ptp4l0-21swapper/208:20:282
134491520,3ptp4l0-21swapper/112:00:201
134491520,3ptp4l0-21swapper/009:37:260
134491520,3ptp4l0-21swapper/009:37:260
134491510,5ptp4l0-21swapper/208:03:102
134491510,4ptp4l0-21swapper/212:12:322
134491510,4ptp4l0-21swapper/207:41:512
134491510,4ptp4l0-21swapper/108:50:571
134491510,4ptp4l0-21swapper/010:25:230
134491510,3ptp4l0-21swapper/211:15:372
134491510,3ptp4l0-21swapper/111:00:241
134491500,4ptp4l0-21swapper/310:04:593
134491500,4ptp4l0-21swapper/212:18:222
134491500,4ptp4l0-21swapper/210:20:022
134491500,4ptp4l0-21swapper/209:31:382
134491500,4ptp4l0-21swapper/209:11:072
134491500,4ptp4l0-21swapper/209:02:472
134491500,4ptp4l0-21swapper/208:19:042
134491500,4ptp4l0-21swapper/207:39:192
134491500,4ptp4l0-21swapper/207:28:322
134491500,4ptp4l0-21swapper/011:52:200
134491500,4ptp4l0-21swapper/009:49:330
134491500,4ptp4l0-21swapper/007:54:420
134491500,3ptp4l413899cyclictest11:30:123
134491500,3ptp4l0-21swapper/110:35:171
134491500,15ptp4l0-21swapper/208:30:132
134491490,4ptp4l0-21swapper/309:08:353
134491490,4ptp4l0-21swapper/211:57:342
134491490,4ptp4l0-21swapper/111:31:201
134491490,4ptp4l0-21swapper/007:21:140
134491490,3ptp4l0-21swapper/210:09:422
134491490,3ptp4l0-21swapper/210:09:422
134491490,3ptp4l0-21swapper/107:31:351
134491490,3ptp4l0-21swapper/010:58:040
134491480,4ptp4l0-21swapper/207:50:222
134491480,4ptp4l0-21swapper/111:08:061
134491470,5ptp4l0-21swapper/312:37:573
134491470,4ptp4l413899cyclictest12:11:113
134491470,4ptp4l0-21swapper/210:39:372
134491470,3ptp4l0-21swapper/107:16:011
134491470,3ptp4l0-21swapper/012:15:210
134491470,12ptp4l0-21swapper/210:00:162
134491460,9ptp4l0-21swapper/312:32:413
134491460,4ptp4l413899cyclictest08:28:523
134491460,4ptp4l0-21swapper/308:32:113
134491460,4ptp4l0-21swapper/211:40:142
134491460,4ptp4l0-21swapper/110:23:101
134491460,4ptp4l0-21swapper/107:49:351
134491460,3ptp4l0-21swapper/210:45:062
134491460,10ptp4l0-21swapper/311:36:163
134491460,10ptp4l0-21swapper/307:17:473
134491450,9ptp4l0-21swapper/310:19:523
134491450,9ptp4l0-21swapper/307:49:463
134491450,4ptp4l30726-21ls08:05:221
134491450,4ptp4l111rcuc/009:40:210
134491450,4ptp4l0-21swapper/110:07:031
134491450,4ptp4l0-21swapper/110:07:031
134491450,3ptp4l0-21swapper/212:25:192
134491450,3ptp4l0-21swapper/212:05:252
134491450,3ptp4l0-21swapper/211:39:562
134491450,3ptp4l0-21swapper/210:42:252
134491450,3ptp4l0-21swapper/111:41:531
134491440,9ptp4l24013-21sendmail_mailqu09:00:241
134491440,9ptp4l0-21swapper/309:23:183
134491440,9ptp4l0-21swapper/309:04:323
134491440,9ptp4l0-21swapper/308:36:303
134491440,7ptp4l3964-21cut07:10:010
134491440,4ptp4l15146-21users09:50:260
134491440,4ptp4l0-21swapper/309:10:173
134491440,4ptp4l0-21swapper/212:22:562
134491440,4ptp4l0-21swapper/207:48:562
134491440,4ptp4l0-21swapper/112:30:151
134491440,3ptp4l18416-21apt-get12:20:111
134491440,3ptp4l0-21swapper/110:17:171
134491440,3ptp4l0-21swapper/110:12:171
134491440,3ptp4l0-21swapper/109:58:351
134491440,3ptp4l0-21swapper/108:11:471
134491440,10ptp4l0-21swapper/308:14:313
134491440,10ptp4l0-21swapper/307:26:533
134491430,9ptp4l0-21swapper/311:59:463
134491430,9ptp4l0-21swapper/308:40:103
134491430,9ptp4l0-21swapper/308:04:463
134491430,6ptp4l5833-21/usr/sbin/munin07:10:251
134491430,4ptp4l28291-21memory09:10:191
134491430,4ptp4l11336-21apt-get10:55:112
134491430,4ptp4l0-21swapper/107:09:591
134491430,4ptp4l0-21swapper/010:35:260
134491430,3ptp4l9041-21apt-get10:50:120
134491430,3ptp4l11081-21apt-get07:25:111
134491430,2ptp4l121rcu_preempt07:35:580
4137994237,3cyclictest33-21ksoftirqd/207:20:002
134491420,9ptp4l0-21swapper/311:50:143
134491420,9ptp4l0-21swapper/211:11:532
134491420,9ptp4l0-21swapper/010:31:100
134491420,8ptp4l0-21swapper/211:48:482
134491420,5ptp4l413599cyclictest10:05:220
134491420,5ptp4l413599cyclictest10:05:220
134491420,5ptp4l21233-21/usr/sbin/munin12:25:140
134491420,4ptp4l6877-21diskstats09:35:131
134491420,4ptp4l6877-21diskstats09:35:131
134491420,4ptp4l29709-21apt-get08:05:133
134491420,4ptp4l21618-21ls10:05:213
134491420,4ptp4l21618-21ls10:05:213
134491420,4ptp4l16952-21ntp_states08:45:212
134491420,4ptp4l0-21swapper/310:55:103
134491420,4ptp4l0-21swapper/108:45:391
134491420,3ptp4l25094-21apt-get07:55:131
134491420,3ptp4l22428-21ls12:25:293
134491420,3ptp4l2239-21apt-get11:45:121
134491410,5ptp4l25668-21cat12:35:000
134491410,5ptp4l13007-21timerwakeupswit12:05:280
134491410,5ptp4l0-21swapper/112:10:131
134491410,5ptp4l0-21swapper/111:35:171
134491410,5ptp4l0-21swapper/011:10:130
134491410,5ptp4l0-21swapper/008:21:010
134491410,4ptp4l7837-21meminfo11:55:190
134491410,4ptp4l4165-21apt-get07:10:100
134491410,4ptp4l30758-21ntp_states09:15:231
134491410,4ptp4l28635-21ntp_states10:20:223
134491410,4ptp4l25281-21apt-get12:35:021
134491410,4ptp4l17992-21apt-get07:40:110
134491410,4ptp4l0-21swapper/312:15:233
134491410,4ptp4l0-21swapper/310:25:153
134491410,4ptp4l0-21swapper/310:14:493
134491410,4ptp4l0-21swapper/309:58:433
134491410,4ptp4l0-21swapper/307:24:233
134491410,4ptp4l0-21swapper/307:12:083
134491410,4ptp4l0-21swapper/109:25:161
134491410,4ptp4l0-21swapper/008:35:200
134491410,3ptp4l8164-21ls10:45:253
134491410,3ptp4l5949-21ls10:40:281
134491410,3ptp4l20288-21apt-get07:45:100
134491410,3ptp4l16933-21ps07:35:251
134491410,3ptp4l0-21swapper/212:04:392
134491410,3ptp4l0-21swapper/011:39:120
134491400,8ptp4l0-21swapper/212:30:072
134491400,5ptp4l0-21swapper/111:25:161
134491400,5ptp4l0-21swapper/110:00:141
134491400,5ptp4l0-21swapper/108:40:171
134491400,5ptp4l0-21swapper/107:20:261
134491400,4ptp4l26613-21ls09:05:281
134491400,4ptp4l21700-21/usr/sbin/munin11:15:181
134491400,4ptp4l11925-21irqstats07:25:170
134491400,4ptp4l10048-21ntp_states08:30:210
134491400,4ptp4l0-21swapper/311:46:593
134491400,4ptp4l0-21swapper/311:41:013
134491400,4ptp4l0-21swapper/311:20:123
134491400,4ptp4l0-21swapper/311:11:523
134491400,4ptp4l0-21swapper/311:05:213
134491400,4ptp4l0-21swapper/310:35:333
134491400,4ptp4l0-21swapper/310:30:273
134491400,4ptp4l0-21swapper/309:47:433
134491400,4ptp4l0-21swapper/309:41:093
134491400,4ptp4l0-21swapper/309:37:423
134491400,4ptp4l0-21swapper/309:37:413
134491400,4ptp4l0-21swapper/309:15:513
134491400,4ptp4l0-21swapper/308:17:493
134491400,4ptp4l0-21swapper/307:57:023
134491400,4ptp4l0-21swapper/307:51:493
134491400,4ptp4l0-21swapper/307:44:053
134491400,4ptp4l0-21swapper/307:35:193
134491400,4ptp4l0-21swapper/211:52:442
134491400,4ptp4l0-21swapper/211:21:482
134491400,4ptp4l0-21swapper/211:07:592
134491400,4ptp4l0-21swapper/210:25:242
134491400,4ptp4l0-21swapper/210:15:142
134491400,4ptp4l0-21swapper/208:55:052
134491400,4ptp4l0-21swapper/208:38:192
134491400,4ptp4l0-21swapper/208:11:582
134491400,4ptp4l0-21swapper/207:12:062
134491400,4ptp4l0-21swapper/111:20:261
134491400,4ptp4l0-21swapper/109:47:461
134491400,4ptp4l0-21swapper/109:30:181
134491400,4ptp4l0-21swapper/108:22:011
134491400,4ptp4l0-21swapper/011:45:120
134491400,4ptp4l0-21swapper/011:40:100
134491400,4ptp4l0-21swapper/011:20:250
134491400,4ptp4l0-21swapper/011:05:070
134491400,4ptp4l0-21swapper/010:20:190
134491400,4ptp4l0-21swapper/009:00:180
134491400,3ptp4l29919-21df08:05:140
134491400,3ptp4l25937-21iostat_ios11:25:170
134491400,3ptp4l25302-21df07:55:130
134491400,3ptp4l18440-21df_inode08:50:140
134491400,3ptp4l17106-21ntp_states09:55:200
134491400,3ptp4l14502-21ntp_states07:30:250
134491400,3ptp4l10160-21ntp_states10:50:231
134491400,3ptp4l0-21swapper/010:46:580
134491390,5ptp4l15079-21chrt07:30:403
134491390,4ptp4l21595-21irqstats11:15:180
134491390,4ptp4l12663-21basename10:55:241
134491390,4ptp4l10539-21mailstats12:00:250
134491390,4ptp4l0-21swapper/312:24:303
134491390,4ptp4l0-21swapper/311:26:213
134491390,4ptp4l0-21swapper/311:04:463
134491390,4ptp4l0-21swapper/310:40:113
134491390,4ptp4l0-21swapper/309:34:143
134491390,4ptp4l0-21swapper/309:27:323
134491390,4ptp4l0-21swapper/308:51:543
134491390,4ptp4l0-21swapper/308:45:203
134491390,4ptp4l0-21swapper/212:35:142
134491390,4ptp4l0-21swapper/210:31:412
134491390,4ptp4l0-21swapper/210:10:372
134491390,4ptp4l0-21swapper/209:51:362
134491390,4ptp4l0-21swapper/209:41:442
134491390,4ptp4l0-21swapper/209:24:222
134491390,4ptp4l0-21swapper/209:05:532
134491390,4ptp4l0-21swapper/208:52:292
134491390,4ptp4l0-21swapper/208:41:512
134491390,4ptp4l0-21swapper/207:30:102
134491390,4ptp4l0-21swapper/207:20:012
134491390,4ptp4l0-21swapper/112:09:581
134491390,4ptp4l0-21swapper/108:30:151
134491390,4ptp4l0-21swapper/107:50:171
134491390,4ptp4l0-21swapper/011:04:490
134491390,4ptp4l0-21swapper/010:15:150
134491390,4ptp4l0-21swapper/009:10:220
134491390,4ptp4l0-21swapper/009:08:500
134491390,4ptp4l0-21swapper/008:44:560
134491390,4ptp4l0-21swapper/008:18:390
134491390,4ptp4l0-21swapper/008:02:560
134491390,3ptp4l7731-21irqstats11:55:181
134491390,3ptp4l4880-21hddtemp_smartct10:40:160
134491390,3ptp4l31856-21cut09:20:010
134491390,3ptp4l27840-21hddtemp_smartct08:00:171
134491390,3ptp4l16399-21df_inode12:15:131
134491390,3ptp4l0-21swapper/110:25:111
134491390,3ptp4l0-21swapper/008:10:220
134491380,4ptp4l0-21swapper/208:28:082
134491380,4ptp4l0-21swapper/109:51:561
134491380,4ptp4l0-21swapper/107:40:031
134491380,4ptp4l0-21swapper/010:10:100
134491380,3ptp4l0-21swapper/211:27:052
134491380,3ptp4l0-21swapper/209:35:382
134491380,3ptp4l0-21swapper/209:35:382
134491380,3ptp4l0-21swapper/012:30:200
134491380,3ptp4l0-21swapper/009:25:110
134491370,3ptp4l0-21swapper/211:01:322
134491370,3ptp4l0-21swapper/108:35:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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