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2025-12-16 - 21:50
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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 Tue Dec 16, 2025 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
246982770,5sleep20-21swapper/210:10:552
134491720,3ptp4l0-21swapper/208:09:552
134491670,6ptp4l0-21swapper/208:35:472
4111996430,7cyclictest25-21ksoftirqd/112:05:471
4111996229,7cyclictest25-21ksoftirqd/109:50:011
134491610,4ptp4l0-21swapper/008:05:450
134491600,3ptp4l11224-21python12:00:570
134491600,3ptp4l11224-21python12:00:570
4111995732,10cyclictest25-21ksoftirqd/111:15:531
4111995721,6cyclictest25-21ksoftirqd/108:49:531
134491570,3ptp4l0-21swapper/310:25:493
134491570,3ptp4l0-21swapper/109:40:571
134491570,2ptp4l0-21swapper/010:00:470
411199565,8cyclictest25-21ksoftirqd/112:20:431
4111995622,8cyclictest25-21ksoftirqd/108:30:021
134491560,4ptp4l0-21swapper/310:01:593
134491560,3ptp4l22246-21chrt07:48:263
134491560,3ptp4l0-21swapper/308:20:593
134491560,3ptp4l0-21swapper/009:54:230
134491560,3ptp4l0-21swapper/009:35:520
134491550,4ptp4l0-21swapper/307:37:253
411199542,9cyclictest25-21ksoftirqd/109:30:531
134491540,4ptp4l0-21swapper/207:10:552
134491540,3ptp4l0-21swapper/210:27:372
134491540,3ptp4l0-21swapper/011:25:260
411199536,8cyclictest8508-21apt-get08:30:011
411199535,8cyclictest25-21ksoftirqd/108:20:541
411199535,8cyclictest25-21ksoftirqd/108:05:551
411199535,7cyclictest25-21ksoftirqd/110:05:561
4111995318,6cyclictest25-21ksoftirqd/111:55:451
411199525,7cyclictest25-21ksoftirqd/111:15:011
411199524,9cyclictest25-21ksoftirqd/110:55:471
411199522,10cyclictest0-21swapper/111:20:451
4111995220,6cyclictest25-21ksoftirqd/107:11:521
134491520,5ptp4l0-21swapper/007:09:360
134491520,4ptp4l0-21swapper/111:35:491
134491520,3ptp4l0-21swapper/310:32:053
411199515,7cyclictest25-21ksoftirqd/109:55:541
411199514,7cyclictest25-21ksoftirqd/108:15:561
411199512,6cyclictest0-21swapper/107:35:581
411199512,15cyclictest0-21swapper/111:46:271
4111995119,5cyclictest25-21ksoftirqd/108:35:091
134491510,9ptp4l1619-21apt-get07:05:392
134491510,4ptp4l0-21swapper/209:31:412
134491510,17ptp4l5866-21sendmail_mailtr09:30:560
411199506,8cyclictest25-21ksoftirqd/107:40:171
411199504,9cyclictest25-21ksoftirqd/109:50:571
411199504,8cyclictest25-21ksoftirqd/110:45:441
411199504,8cyclictest121rcu_preempt12:15:561
411199504,7cyclictest25-21ksoftirqd/111:55:001
411199504,7cyclictest25-21ksoftirqd/110:15:561
411199504,7cyclictest25-21ksoftirqd/110:15:561
411199504,6cyclictest25-21ksoftirqd/112:34:591
411199503,11cyclictest25-21ksoftirqd/109:10:481
134491500,5ptp4l41-21ksoftirqd/311:56:563
134491500,4ptp4l0-21swapper/309:36:383
134491500,4ptp4l0-21swapper/308:08:453
134491500,4ptp4l0-21swapper/107:29:241
134491500,4ptp4l0-21swapper/011:10:100
134491500,4ptp4l0-21swapper/011:07:330
134491500,4ptp4l0-21swapper/009:47:580
134491500,4ptp4l0-21swapper/009:00:010
134491500,4ptp4l0-21swapper/009:00:010
134491500,4ptp4l0-21swapper/007:33:430
134491500,3ptp4l0-21swapper/309:05:243
134491500,3ptp4l0-21swapper/007:40:450
134491500,12ptp4l18556-21sed10:00:002
134491500,11ptp4l0-21swapper/010:10:570
411199495,7cyclictest25-21ksoftirqd/109:35:461
411199495,6cyclictest2757-21sort11:45:001
411199494,7cyclictest25-21ksoftirqd/110:00:441
411199494,6cyclictest25-21ksoftirqd/109:25:451
411199493,6cyclictest25-21ksoftirqd/111:35:001
411199493,6cyclictest0-21swapper/109:15:521
411199492,5cyclictest0-21swapper/110:40:471
411199491,5cyclictest0-21swapper/108:55:541
134491490,5ptp4l1317-21runrttasks07:09:531
134491490,4ptp4l0-21swapper/209:44:142
134491490,4ptp4l0-21swapper/012:10:360
134491490,4ptp4l0-21swapper/008:16:130
134491490,3ptp4l0-21swapper/011:55:460
134491490,3ptp4l0-21swapper/011:01:110
134491490,12ptp4l0-21swapper/307:23:363
411199485,7cyclictest25-21ksoftirqd/110:15:001
411199484,9cyclictest25-21ksoftirqd/112:15:001
411199484,7cyclictest25-21ksoftirqd/112:29:591
411199484,10cyclictest25-21ksoftirqd/107:50:431
411199482,6cyclictest25-21ksoftirqd/111:26:001
4111994818,6cyclictest25-21ksoftirqd/110:38:031
411199481,6cyclictest0-21swapper/111:00:541
4111994813,9cyclictest25-21ksoftirqd/110:34:391
134491480,4ptp4l0-21swapper/308:41:093
134491480,4ptp4l0-21swapper/012:30:560
134491480,4ptp4l0-21swapper/011:38:340
134491480,3ptp4l0-21swapper/307:43:453
411199474,3cyclictest26853-21apache211:05:451
411199473,7cyclictest25-21ksoftirqd/110:20:521
4111994712,10cyclictest25-21ksoftirqd/112:35:181
411199470,7cyclictest25-21ksoftirqd/107:56:241
134491470,9ptp4l0-21swapper/312:21:263
134491470,7ptp4l3095-21ls07:05:513
134491470,4ptp4l0-21swapper/011:53:010
134491470,4ptp4l0-21swapper/010:19:410
134491470,4ptp4l0-21swapper/010:19:410
134491470,4ptp4l0-21swapper/007:59:370
134491470,3ptp4l9-21ksoftirqd/010:35:570
134491470,3ptp4l0-21swapper/011:46:380
411199465,7cyclictest25-21ksoftirqd/110:30:011
411199464,7cyclictest25-21ksoftirqd/110:54:391
411199463,6cyclictest4109-21cyclictest07:20:481
411199461,5cyclictest25-21ksoftirqd/109:25:001
411199460,5cyclictest25-21ksoftirqd/108:40:551
134491460,4ptp4l0-21swapper/010:25:400
134491460,4ptp4l0-21swapper/010:22:370
134491460,3ptp4l0-21swapper/010:55:250
134491460,3ptp4l0-21swapper/009:59:260
134491460,3ptp4l0-21swapper/008:59:310
134491460,3ptp4l0-21swapper/008:47:500
411199454,7cyclictest25-21ksoftirqd/108:00:571
411199450,6cyclictest7834-21mailstats07:15:551
134491450,7ptp4l0-21swapper/208:10:202
134491450,4ptp4l9170-21apt-get09:40:433
134491450,4ptp4l23549-21apt-get11:20:432
134491450,4ptp4l0-21swapper/008:54:360
134491450,4ptp4l0-21swapper/008:43:400
134491450,3ptp4l0-21swapper/310:07:053
134491450,10ptp4l0-21swapper/209:35:462
411199445,8cyclictest25-21ksoftirqd/108:10:551
411199444,7cyclictest25-21ksoftirqd/109:05:431
411199443,5cyclictest25-21ksoftirqd/109:00:481
411199443,5cyclictest25-21ksoftirqd/109:00:481
4111994423,3cyclictest25-21ksoftirqd/107:33:461
411199441,7cyclictest25-21ksoftirqd/108:50:011
411199440,6cyclictest25-21ksoftirqd/107:45:561
134491440,9ptp4l0-21swapper/211:11:282
134491440,9ptp4l0-21swapper/209:22:342
134491440,8ptp4l33-21ksoftirqd/208:55:512
134491440,5ptp4l0-21swapper/311:30:433
134491440,5ptp4l0-21swapper/311:20:443
134491440,4ptp4l28405-21apt-get11:30:432
134491440,4ptp4l21230-21apt-get11:15:432
134491440,4ptp4l0-21swapper/008:30:260
134491440,3ptp4l0-21swapper/307:53:343
4111994328,8cyclictest25-21ksoftirqd/112:00:441
4111994328,8cyclictest25-21ksoftirqd/112:00:441
134491430,9ptp4l0-21swapper/211:35:412
134491430,9ptp4l0-21swapper/207:51:552
134491430,5ptp4l0-21swapper/209:00:582
134491430,5ptp4l0-21swapper/209:00:582
134491430,4ptp4l0-21swapper/309:20:383
134491430,4ptp4l0-21swapper/009:17:590
134491430,3ptp4l28061-21apt-get10:20:442
134491430,3ptp4l0-21swapper/007:54:290
134491430,10ptp4l0-21swapper/212:17:022
4112994236,3cyclictest33-21ksoftirqd/207:25:542
134491420,9ptp4l0-21swapper/212:33:012
134491420,9ptp4l0-21swapper/211:48:202
134491420,8ptp4l0-21swapper/211:41:372
134491420,8ptp4l0-21swapper/209:46:122
134491420,5ptp4l0-21swapper/211:25:592
134491420,5ptp4l0-21swapper/007:45:480
134491420,4ptp4l16879-21ntp_states07:35:532
134491420,4ptp4l0-21swapper/310:51:133
134491420,4ptp4l0-21swapper/307:10:443
134491420,4ptp4l0-21swapper/008:10:540
134491420,3ptp4l29983-21apt-get09:15:432
134491420,3ptp4l0-21swapper/012:28:270
134491420,24ptp4l9-21ksoftirqd/009:26:270
4112994136,3cyclictest7892-21fschecks_count11:55:482
134491410,8ptp4l0-21swapper/210:04:462
134491410,5ptp4l0-21swapper/308:50:583
134491410,5ptp4l0-21swapper/208:00:532
134491410,4ptp4l7651-21hddtemp_smartct10:45:470
134491410,4ptp4l6499-21apt-get08:25:422
134491410,4ptp4l26446-21ntp_states09:05:540
134491410,4ptp4l13301-21ntp_states12:05:550
134491410,4ptp4l0-21swapper/309:45:513
134491410,4ptp4l0-21swapper/308:00:553
134491410,4ptp4l0-21swapper/212:08:182
134491410,4ptp4l0-21swapper/210:55:452
134491410,4ptp4l0-21swapper/010:06:040
134491410,4ptp4l0-21swapper/009:13:410
134491410,3ptp4l19024-21memory07:40:492
4112994035,3cyclictest33-21ksoftirqd/211:00:442
134491400,5ptp4l5929-21irqrtprio11:50:522
134491400,5ptp4l1301-21snmpd12:04:092
134491400,5ptp4l1301-21snmpd12:04:092
134491400,5ptp4l0-21swapper/310:35:543
134491400,5ptp4l0-21swapper/208:50:492
134491400,5ptp4l0-21swapper/207:19:502
134491400,5ptp4l0-21swapper/011:15:450
134491400,4ptp4l6585-21uptime10:40:582
134491400,4ptp4l5315-21ntp_states08:20:510
134491400,4ptp4l19653-21iostat12:20:480
134491400,4ptp4l1731-21ntp_states11:40:550
134491400,4ptp4l12024-21df10:55:453
134491400,4ptp4l10842-21users09:40:590
134491400,4ptp4l0-21swapper/312:00:553
134491400,4ptp4l0-21swapper/312:00:553
134491400,4ptp4l0-21swapper/311:05:583
134491400,4ptp4l0-21swapper/311:00:523
134491400,4ptp4l0-21swapper/310:10:583
134491400,4ptp4l0-21swapper/309:15:543
134491400,4ptp4l0-21swapper/309:10:563
134491400,4ptp4l0-21swapper/307:25:473
134491400,4ptp4l0-21swapper/210:32:072
134491400,4ptp4l0-21swapper/209:11:052
134491400,4ptp4l0-21swapper/209:08:262
134491400,4ptp4l0-21swapper/208:40:242
134491400,4ptp4l0-21swapper/208:20:362
134491400,4ptp4l0-21swapper/207:46:012
134491400,4ptp4l0-21swapper/207:32:182
134491400,4ptp4l0-21swapper/012:17:120
134491400,4ptp4l0-21swapper/010:30:230
134491400,4ptp4l0-21swapper/008:25:300
134491400,4ptp4l0-21swapper/007:39:130
134491400,4ptp4l0-21swapper/007:15:500
134491400,3ptp4l32759-21irqstats08:10:473
134491400,3ptp4l2603-21apt-get10:35:432
134491400,3ptp4l24966-21ls11:20:570
134491400,3ptp4l2206-21apt-get09:25:442
4113993932,5cyclictest41-21ksoftirqd/312:25:433
134491390,5ptp4l0-21swapper/311:15:443
134491390,5ptp4l0-21swapper/308:25:513
134491390,4ptp4l6015-21irqrtprio11:50:513
134491390,4ptp4l0-21swapper/310:15:453
134491390,4ptp4l0-21swapper/310:15:453
134491390,4ptp4l0-21swapper/308:37:253
134491390,4ptp4l0-21swapper/307:55:173
134491390,4ptp4l0-21swapper/307:31:063
134491390,4ptp4l0-21swapper/212:38:292
134491390,4ptp4l0-21swapper/212:28:572
134491390,4ptp4l0-21swapper/212:25:002
134491390,4ptp4l0-21swapper/210:54:432
134491390,4ptp4l0-21swapper/210:45:452
134491390,4ptp4l0-21swapper/210:18:592
134491390,4ptp4l0-21swapper/210:18:592
134491390,4ptp4l0-21swapper/210:09:292
134491390,4ptp4l0-21swapper/209:50:552
134491390,4ptp4l0-21swapper/208:47:232
134491390,4ptp4l0-21swapper/208:30:342
134491390,4ptp4l0-21swapper/208:15:402
134491390,4ptp4l0-21swapper/207:55:092
134491390,4ptp4l0-21swapper/207:22:412
134491390,4ptp4l0-21swapper/011:30:530
134491390,4ptp4l0-21swapper/010:50:030
134491390,4ptp4l0-21swapper/010:42:560
134491390,4ptp4l0-21swapper/009:21:550
134491390,4ptp4l0-21swapper/008:35:540
134491390,4ptp4l0-21swapper/007:27:350
134491390,4ptp4l0-21swapper/007:24:330
134491390,4ptp4l0-21swapper/007:10:060
134491390,3ptp4l28280-21memory08:00:510
134491390,3ptp4l24004-21sed09:00:503
134491390,3ptp4l24004-21sed09:00:503
134491380,4ptp4l411099cyclictest12:35:310
134491380,4ptp4l27512-21sed11:26:003
134491380,4ptp4l0-21swapper/311:13:393
134491380,4ptp4l0-21swapper/310:45:293
134491380,4ptp4l0-21swapper/310:40:093
134491380,4ptp4l0-21swapper/310:20:533
134491380,4ptp4l0-21swapper/309:55:423
134491380,4ptp4l0-21swapper/309:27:313
134491380,4ptp4l0-21swapper/308:55:473
134491380,4ptp4l0-21swapper/308:34:133
134491380,4ptp4l0-21swapper/308:15:483
134491380,3ptp4l0-21swapper/309:51:583
134491380,3ptp4l0-21swapper/212:10:142
134491380,3ptp4l0-21swapper/211:07:202
134491380,2ptp4l4083-21ntp_states11:45:533
4113993731,4cyclictest41-21ksoftirqd/311:38:133
134491370,5ptp4l27359-21sensors12:35:543
134491370,4ptp4l0-21swapper/309:30:373
134491370,3ptp4l0-21swapper/311:41:043
134491370,3ptp4l0-21swapper/308:47:313
134491370,3ptp4l0-21swapper/307:16:413
134491350,3ptp4l0-21swapper/312:17:263
134491330,4ptp4l0-21swapper/312:34:223
134491250,4ptp4l0-21swapper/312:10:133
134491230,4ptp4l0-21swapper/312:06:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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