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2026-04-29 - 15:39
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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 Wed Apr 29, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2900921170,4sleep10-21swapper/112:20:131
272302650,5sleep327226-21sendmail_mailqu09:55:263
134491650,5ptp4l0-21swapper/210:53:182
134491650,32ptp4l41-21ksoftirqd/308:20:253
134491620,4ptp4l0-21swapper/209:43:132
134491610,4ptp4l0-21swapper/210:25:172
134491600,4ptp4l0-21swapper/012:14:240
134491600,4ptp4l0-21swapper/007:55:380
134491600,3ptp4l0-21swapper/010:46:040
1362799594,53cyclictest0-21swapper/311:15:293
134491590,4ptp4l0-21swapper/011:55:550
134491590,4ptp4l0-21swapper/007:05:320
134491570,4ptp4l0-21swapper/111:31:461
134491570,4ptp4l0-21swapper/011:00:160
134491570,3ptp4l0-21swapper/111:03:391
134491550,4ptp4l0-21swapper/211:55:582
134491550,4ptp4l0-21swapper/211:33:122
134491550,4ptp4l0-21swapper/208:47:132
134491550,4ptp4l0-21swapper/208:47:132
134491550,4ptp4l0-21swapper/208:04:542
134491550,4ptp4l0-21swapper/207:31:382
134491550,4ptp4l0-21swapper/108:58:141
134491550,3ptp4l15589-21mailstats08:20:242
134491550,3ptp4l0-21swapper/107:40:261
134491550,3ptp4l0-21swapper/009:26:080
1362799548,7cyclictest0-21swapper/307:40:223
1362799543,11cyclictest11660-21taskset09:22:503
1362799542,6cyclictest31876-21ps12:25:193
134491540,4ptp4l0-21swapper/212:37:292
134491540,4ptp4l0-21swapper/211:44:122
134491540,4ptp4l0-21swapper/211:23:522
134491540,4ptp4l0-21swapper/210:41:492
134491540,4ptp4l0-21swapper/209:31:582
134491540,4ptp4l0-21swapper/207:48:592
134491540,4ptp4l0-21swapper/207:48:592
134491540,4ptp4l0-21swapper/207:15:402
134491540,4ptp4l0-21swapper/110:10:061
134491540,3ptp4l0-21swapper/109:40:181
134491530,4ptp4l0-21swapper/207:56:052
134491530,4ptp4l0-21swapper/112:14:361
134491530,4ptp4l0-21swapper/107:23:001
134491530,3ptp4l0-21swapper/210:58:262
134491520,9ptp4l12419-21ntp_states07:05:301
134491520,4ptp4l0-21swapper/211:03:242
134491520,3ptp4l0-21swapper/111:38:451
134491510,4ptp4l0-21swapper/211:37:232
1362799508,7cyclictest0-21swapper/310:55:243
1362799508,6cyclictest0-21swapper/312:20:223
134491500,4ptp4l0-21swapper/208:56:492
134491500,4ptp4l0-21swapper/208:44:312
134491500,4ptp4l0-21swapper/208:36:092
134491500,4ptp4l0-21swapper/108:20:061
134491500,3ptp4l0-21swapper/107:33:261
1362799499,6cyclictest0-21swapper/307:30:213
1362799498,7cyclictest0-21swapper/309:15:193
1362799498,6cyclictest0-21swapper/311:10:133
1362799498,6cyclictest0-21swapper/311:00:263
1362799498,6cyclictest0-21swapper/310:15:293
1362799498,6cyclictest0-21swapper/308:50:163
1362799497,7cyclictest0-21swapper/307:55:183
134491490,4ptp4l0-21swapper/212:25:122
134491490,4ptp4l0-21swapper/208:09:582
134491490,4ptp4l0-21swapper/112:16:481
134491490,4ptp4l0-21swapper/111:27:511
134491490,4ptp4l0-21swapper/110:40:381
1362799487,6cyclictest0-21swapper/311:55:123
1362799487,14cyclictest0-21swapper/308:10:133
1362799483,10cyclictest16851-21sort08:25:133
13624994829,16cyclictest9-21ksoftirqd/008:30:000
134491480,4ptp4l0-21swapper/208:17:352
134491480,4ptp4l0-21swapper/111:50:471
134491480,4ptp4l0-21swapper/111:50:471
134491480,3ptp4l0-21swapper/112:38:391
134491480,10ptp4l0-21swapper/008:03:590
1362799478,6cyclictest0-21swapper/310:25:123
1362799477,6cyclictest0-21swapper/311:35:173
1362799477,6cyclictest0-21swapper/308:40:133
1362799477,6cyclictest0-21swapper/307:15:153
1362799473,11cyclictest0-21swapper/311:20:383
1362799470,13cyclictest20678-21users09:40:283
134491470,4ptp4l0-21swapper/108:05:091
134491470,3ptp4l0-21swapper/207:25:302
1362799463,7cyclictest0-21swapper/307:45:133
1362799463,7cyclictest0-21swapper/307:45:133
13626994625,17cyclictest33-21ksoftirqd/211:20:002
134491460,4ptp4l0-21swapper/109:00:541
134491460,3ptp4l0-21swapper/208:10:262
134491460,3ptp4l0-21swapper/109:30:261
134491460,3ptp4l0-21swapper/109:25:221
134491460,3ptp4l0-21swapper/108:12:261
1362799459,5cyclictest0-21swapper/310:10:293
1362799456,5cyclictest0-21swapper/307:10:173
1362799455,6cyclictest0-21swapper/308:30:133
134491450,4ptp4l0-21swapper/008:39:380
134491450,4ptp4l0-21swapper/007:44:320
134491450,3ptp4l20999-21apt-get07:25:140
134491450,3ptp4l0-21swapper/112:29:371
134491450,3ptp4l0-21swapper/111:14:061
134491450,3ptp4l0-21swapper/007:20:540
1362799448,7cyclictest0-21swapper/308:45:153
1362799448,7cyclictest0-21swapper/308:45:153
134491440,9ptp4l0-21swapper/208:50:542
134491440,9ptp4l0-21swapper/208:33:002
134491440,9ptp4l0-21swapper/207:13:592
134491440,4ptp4l0-21swapper/010:50:450
134491440,4ptp4l0-21swapper/010:25:070
134491440,3ptp4l0-21swapper/012:23:070
134491440,3ptp4l0-21swapper/012:19:070
134491440,3ptp4l0-21swapper/009:47:340
134491440,17ptp4l0-21swapper/108:00:241
134491440,11ptp4l7188-21latency_hist10:25:012
134491440,10ptp4l0-21swapper/011:05:260
1362799436,6cyclictest0-21swapper/312:35:253
134491430,6ptp4l0-21swapper/209:25:232
134491430,5ptp4l31370-21ntp_states07:45:221
134491430,5ptp4l31370-21ntp_states07:45:221
134491430,3ptp4l241ktimersoftd/109:05:191
134491430,3ptp4l1174-21apt-get12:30:132
134491430,3ptp4l0-21swapper/109:10:441
134491430,3ptp4l0-21swapper/009:20:540
134491430,3ptp4l0-21swapper/009:08:020
134491430,3ptp4l0-21swapper/008:33:330
134491430,10ptp4l0-21swapper/010:38:410
134491430,10ptp4l0-21swapper/009:53:450
1362799427,11cyclictest0-21swapper/307:20:163
1362499421,4cyclictest134691getstats10:20:120
134491420,9ptp4l0-21swapper/310:40:263
134491420,9ptp4l0-21swapper/210:33:502
134491420,9ptp4l0-21swapper/210:09:192
134491420,9ptp4l0-21swapper/209:08:052
134491420,8ptp4l0-21swapper/212:21:352
134491420,8ptp4l0-21swapper/212:09:322
134491420,8ptp4l0-21swapper/211:29:442
134491420,5ptp4l14608-21memory07:10:201
134491420,5ptp4l13779-21meminfo11:45:201
134491420,5ptp4l0-21swapper/308:15:223
134491420,5ptp4l0-21swapper/012:35:190
134491420,5ptp4l0-21swapper/009:35:190
134491420,5ptp4l0-21swapper/008:55:230
134491420,4ptp4l8595-21ntp_states09:15:221
134491420,4ptp4l798-21apt-get11:20:020
134491420,4ptp4l7785-21diskstats09:15:140
134491420,4ptp4l4486-21users10:15:281
134491420,4ptp4l30567-21apt-get10:05:130
134491420,4ptp4l20316-21meminfo10:50:221
134491420,4ptp4l19267-21df08:30:131
134491420,4ptp4l0-21swapper/311:26:083
134491420,3ptp4l0-21swapper/111:58:141
134491420,3ptp4l0-21swapper/109:56:131
134491420,3ptp4l0-21swapper/011:19:170
134491410,8ptp4l0-21swapper/212:18:312
134491410,8ptp4l0-21swapper/209:23:412
134491410,5ptp4l31139-21iostat_ios10:05:191
134491410,5ptp4l0-21swapper/010:30:160
134491410,5ptp4l0-21swapper/008:45:140
134491410,5ptp4l0-21swapper/008:45:140
134491410,5ptp4l0-21swapper/008:10:250
134491410,4ptp4l32758-21df07:50:131
134491410,4ptp4l2436-21ntp_states11:20:221
134491410,4ptp4l22608-21iostat_ios12:05:180
134491410,4ptp4l21783-21hddtemp_smartct08:35:161
134491410,4ptp4l17916-21irqstats10:45:181
134491410,4ptp4l17642-21memory09:35:201
134491410,4ptp4l12278-21iostat08:15:171
134491410,4ptp4l0-21swapper/211:08:592
134491410,4ptp4l0-21swapper/209:00:112
134491410,4ptp4l0-21swapper/012:30:250
134491410,4ptp4l0-21swapper/011:35:240
134491410,4ptp4l0-21swapper/010:59:560
134491410,4ptp4l0-21swapper/008:20:260
134491410,4ptp4l0-21swapper/007:51:520
134491410,4ptp4l0-21swapper/007:30:140
134491410,3ptp4l6198-21ls09:10:210
134491410,3ptp4l5136-21apt-get10:20:111
134491410,3ptp4l2818-21apt-get10:15:110
134491410,3ptp4l26021-21apt-get08:45:121
134491410,3ptp4l26021-21apt-get08:45:121
134491410,3ptp4l24774-21ntp_states09:50:231
134491410,3ptp4l19738-21apt-get12:00:111
134491410,3ptp4l14396-21apt-get09:30:120
134491410,3ptp4l0-21swapper/109:46:141
134491410,2ptp4l0-21swapper/211:13:442
134491410,10ptp4l0-21swapper/111:17:581
1362799408,14cyclictest0-21swapper/311:45:243
1362799402,6cyclictest0-21swapper/310:45:263
134491400,8ptp4l0-21swapper/209:35:042
134491400,5ptp4l23934-21df08:40:131
134491400,5ptp4l0-21swapper/108:50:141
134491400,4ptp4l5121-21/usr/sbin/munin10:20:183
134491400,4ptp4l26485-21irqstats07:35:171
134491400,4ptp4l22878-21irqstats12:05:181
134491400,4ptp4l0-21swapper/311:07:273
134491400,4ptp4l0-21swapper/309:25:243
134491400,4ptp4l0-21swapper/307:51:443
134491400,4ptp4l0-21swapper/211:51:152
134491400,4ptp4l0-21swapper/211:51:152
134491400,4ptp4l0-21swapper/211:46:442
134491400,4ptp4l0-21swapper/207:22:042
134491400,4ptp4l0-21swapper/109:20:271
134491400,4ptp4l0-21swapper/108:27:461
134491400,4ptp4l0-21swapper/107:25:161
134491400,4ptp4l0-21swapper/012:25:170
134491400,4ptp4l0-21swapper/011:33:170
134491400,4ptp4l0-21swapper/011:12:000
134491400,4ptp4l0-21swapper/010:40:140
134491400,4ptp4l0-21swapper/010:00:190
134491400,4ptp4l0-21swapper/008:15:020
134491400,4ptp4l0-21swapper/007:35:190
134491400,3ptp4l31099-21irqstats07:45:190
134491400,3ptp4l31099-21irqstats07:45:180
134491400,3ptp4l26384-21hddtemp_smartct09:55:170
134491400,3ptp4l19738-21apt-get12:00:120
134491400,3ptp4l12447-21apt-get10:35:101
134491400,3ptp4l10511-21iostat_ios10:30:183
134491400,3ptp4l0-21swapper/110:29:251
1362799397,11cyclictest0-21swapper/309:00:233
134491390,6ptp4l0-21swapper/207:35:582
134491390,5ptp4l0-21swapper/309:30:183
134491390,4ptp4l0-21swapper/312:30:143
134491390,4ptp4l0-21swapper/312:16:403
134491390,4ptp4l0-21swapper/311:52:443
134491390,4ptp4l0-21swapper/311:52:443
134491390,4ptp4l0-21swapper/310:50:023
134491390,4ptp4l0-21swapper/310:37:303
134491390,4ptp4l0-21swapper/309:05:283
134491390,4ptp4l0-21swapper/308:40:013
134491390,4ptp4l0-21swapper/210:49:562
134491390,4ptp4l0-21swapper/210:18:112
134491390,4ptp4l0-21swapper/210:10:242
134491390,4ptp4l0-21swapper/209:56:022
134491390,4ptp4l0-21swapper/209:53:202
134491390,4ptp4l0-21swapper/209:46:542
134491390,4ptp4l0-21swapper/209:15:212
134491390,4ptp4l0-21swapper/208:25:542
134491390,4ptp4l0-21swapper/207:50:392
134491390,4ptp4l0-21swapper/207:44:422
134491390,4ptp4l0-21swapper/112:30:591
134491390,4ptp4l0-21swapper/111:05:121
134491390,4ptp4l0-21swapper/110:55:191
134491390,4ptp4l0-21swapper/110:30:471
134491390,4ptp4l0-21swapper/110:00:121
134491390,4ptp4l0-21swapper/107:59:091
134491390,4ptp4l0-21swapper/011:54:120
134491390,4ptp4l0-21swapper/011:54:120
134491390,4ptp4l0-21swapper/011:41:340
134491390,4ptp4l0-21swapper/011:30:010
134491390,4ptp4l0-21swapper/008:40:180
134491390,3ptp4l17074-21ntp_states07:15:241
134491390,3ptp4l13676-21irqstats11:45:190
134491390,3ptp4l0-21swapper/212:14:192
134491390,3ptp4l0-21swapper/212:00:462
134491390,3ptp4l0-21swapper/210:36:362
134491390,3ptp4l0-21swapper/010:10:260
134491390,3ptp4l0-21swapper/009:40:170
134491390,3ptp4l0-21swapper/008:50:220
134491380,4ptp4l0-21swapper/312:07:133
134491380,4ptp4l0-21swapper/312:04:323
134491380,4ptp4l0-21swapper/310:07:483
134491380,4ptp4l0-21swapper/309:35:383
134491380,4ptp4l0-21swapper/308:08:243
134491380,4ptp4l0-21swapper/210:02:202
134491380,4ptp4l0-21swapper/111:41:311
134491380,4ptp4l0-21swapper/009:02:040
134491380,4ptp4l0-21swapper/007:15:170
134491380,4ptp4l0-21swapper/007:10:040
134491380,3ptp4l0-21swapper/312:10:183
134491380,3ptp4l0-21swapper/308:57:263
134491380,3ptp4l0-21swapper/307:25:193
134491380,3ptp4l0-21swapper/008:05:210
134491370,4ptp4l0-21swapper/311:31:513
134491370,4ptp4l0-21swapper/310:01:363
134491370,4ptp4l0-21swapper/307:37:343
134491370,4ptp4l0-21swapper/209:10:592
134491360,4ptp4l0-21swapper/309:52:223
134491360,3ptp4l0-21swapper/309:46:553
134491350,4ptp4l0-21swapper/308:01:423
134491350,3ptp4l0-21swapper/309:11:063
1362799332,25cyclictest0-21swapper/311:42:593
137891203,3phc2sys0-21swapper/307:05:463
130802124,4sleep20-21swapper/207:06:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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