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2025-12-16 - 22:37
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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 rackdslot3.osadl.org (updated Tue Dec 16, 2025 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
305862212179,22sleep30-21swapper/307:08:513
305152212180,22sleep00-21swapper/007:07:570
305112210176,22sleep10-21swapper/107:07:531
306332209177,21sleep20-21swapper/207:09:242
2609521180,4sleep33097899cyclictest09:15:433
1567221180,2sleep20-21swapper/208:50:552
57898970,77rtkit-daemon0-21swapper/107:10:001
57898970,77rtkit-daemon0-21swapper/107:10:001
134491620,1getstats0-21swapper/307:14:223
134491620,1getstats0-21swapper/307:14:223
57898610,2rtkit-daemon0-21swapper/008:50:480
7362550,2sleep00-21swapper/010:35:510
278012520,3sleep1231rcuc/110:25:491
139391520,1ptp4l401ktimersoftd/308:40:283
312932510,2sleep2311rcuc/211:40:442
139391510,0ptp4l401ktimersoftd/308:05:533
139391500,0ptp4l401ktimersoftd/310:05:443
45402480,4sleep233-21ksoftirqd/207:20:502
30978994817,6cyclictest41-21ksoftirqd/309:00:563
139391440,0ptp4l401ktimersoftd/311:00:023
30978994320,9cyclictest41-21ksoftirqd/308:55:493
3097699439,4cyclictest25-21ksoftirqd/112:30:011
30976994336,4cyclictest11456-21wc08:45:011
139391430,0ptp4l401ktimersoftd/311:55:023
139391430,0ptp4l401ktimersoftd/310:50:433
30977994211,5cyclictest33-21ksoftirqd/211:10:562
3097799410,4cyclictest5828-21apt-get07:25:402
30976994135,3cyclictest25-21ksoftirqd/107:50:001
30976994134,4cyclictest25-21ksoftirqd/111:30:011
30977994026,12cyclictest33-21ksoftirqd/209:30:002
30975994034,4cyclictest25516-21irqrtprio08:05:460
30977993935,3cyclictest33-21ksoftirqd/211:30:012
30977993933,3cyclictest33-21ksoftirqd/212:30:012
30976993934,3cyclictest25-21ksoftirqd/110:40:001
3097699391,3cyclictest25-21ksoftirqd/111:00:461
30978993816,11cyclictest41-21ksoftirqd/312:30:443
30977993824,4cyclictest33-21ksoftirqd/208:15:442
30977993816,14cyclictest33-21ksoftirqd/211:15:572
3097699384,3cyclictest25-21ksoftirqd/110:30:521
30976993833,3cyclictest25-21ksoftirqd/112:20:001
30976993833,3cyclictest25-21ksoftirqd/110:45:011
30976993833,3cyclictest25-21ksoftirqd/109:00:001
30976993832,3cyclictest25-21ksoftirqd/112:00:001
30976993832,3cyclictest25-21ksoftirqd/111:00:001
3097699381,3cyclictest25-21ksoftirqd/110:45:471
3097699381,3cyclictest25-21ksoftirqd/110:45:471
30978993734,2cyclictest41-21ksoftirqd/312:40:003
30978993733,2cyclictest41-21ksoftirqd/310:50:003
30978993733,2cyclictest41-21ksoftirqd/310:50:003
30978993732,3cyclictest41-21ksoftirqd/312:15:003
30977993733,2cyclictest33-21ksoftirqd/211:35:012
30977993732,3cyclictest33-21ksoftirqd/209:55:002
30977993730,5cyclictest33-21ksoftirqd/211:54:032
30977993728,7cyclictest33-21ksoftirqd/207:55:562
30977993728,7cyclictest33-21ksoftirqd/207:55:562
3097699376,3cyclictest25-21ksoftirqd/110:20:551
3097699376,2cyclictest25-21ksoftirqd/107:25:431
3097699375,6cyclictest25-21ksoftirqd/107:50:441
3097699375,3cyclictest25-21ksoftirqd/109:50:001
3097699374,3cyclictest25-21ksoftirqd/109:25:531
30976993732,3cyclictest25-21ksoftirqd/108:25:431
30976993732,3cyclictest25-21ksoftirqd/107:20:001
30976993731,4cyclictest25-21ksoftirqd/111:41:061
30976993730,4cyclictest25-21ksoftirqd/109:35:401
3097699370,3cyclictest25-21ksoftirqd/112:10:541
30975993732,3cyclictest9-21ksoftirqd/009:40:000
30975993732,3cyclictest9-21ksoftirqd/008:05:000
30978993632,3cyclictest41-21ksoftirqd/311:50:013
30978993632,2cyclictest41-21ksoftirqd/312:19:593
30978993631,3cyclictest41-21ksoftirqd/310:30:013
30978993631,3cyclictest41-21ksoftirqd/310:25:003
30978993631,3cyclictest41-21ksoftirqd/308:29:593
30978993630,4cyclictest41-21ksoftirqd/311:54:373
30978993630,3cyclictest41-21ksoftirqd/307:50:003
30978993625,9cyclictest41-21ksoftirqd/307:15:533
30977993633,2cyclictest33-21ksoftirqd/209:00:002
30977993631,3cyclictest33-21ksoftirqd/210:50:012
30977993631,3cyclictest33-21ksoftirqd/210:50:002
30977993631,3cyclictest33-21ksoftirqd/210:35:492
30977993631,3cyclictest33-21ksoftirqd/209:45:002
30977993630,4cyclictest33-21ksoftirqd/212:18:272
30977993630,4cyclictest33-21ksoftirqd/210:28:192
3097799362,3cyclictest121rcu_preempt10:05:002
30977993622,4cyclictest33-21ksoftirqd/209:15:002
30977993616,5cyclictest33-21ksoftirqd/210:35:002
3097699367,3cyclictest25-21ksoftirqd/109:05:581
3097699364,3cyclictest25-21ksoftirqd/110:15:441
3097699363,6cyclictest25-21ksoftirqd/110:05:441
3097699363,3cyclictest25-21ksoftirqd/109:50:521
30976993632,2cyclictest25-21ksoftirqd/109:20:011
30976993631,3cyclictest25-21ksoftirqd/112:40:001
30976993630,4cyclictest25-21ksoftirqd/111:24:351
30976993630,4cyclictest25-21ksoftirqd/109:59:151
30976993630,4cyclictest25-21ksoftirqd/108:21:221
30976993629,5cyclictest25-21ksoftirqd/111:17:011
3097699362,3cyclictest25-21ksoftirqd/112:20:431
30975993631,3cyclictest9-21ksoftirqd/009:35:010
30975993631,3cyclictest9-21ksoftirqd/007:25:010
30978993530,3cyclictest41-21ksoftirqd/308:15:013
30978993530,3cyclictest41-21ksoftirqd/307:35:013
30978993529,4cyclictest41-21ksoftirqd/309:26:383
30978993521,3cyclictest41-21ksoftirqd/309:45:453
30977993530,3cyclictest33-21ksoftirqd/212:04:272
30977993530,3cyclictest33-21ksoftirqd/211:25:002
30977993530,3cyclictest33-21ksoftirqd/209:15:492
30977993520,3cyclictest33-21ksoftirqd/207:40:512
3097799350,3cyclictest121rcu_preempt08:35:472
3097699356,3cyclictest25-21ksoftirqd/108:00:561
3097699355,4cyclictest25-21ksoftirqd/108:05:421
3097699355,2cyclictest25-21ksoftirqd/111:35:581
3097699354,3cyclictest25-21ksoftirqd/108:30:541
3097699353,5cyclictest25-21ksoftirqd/109:30:461
3097699353,3cyclictest25-21ksoftirqd/108:45:461
3097699353,3cyclictest121rcu_preempt11:05:441
30976993529,4cyclictest25-21ksoftirqd/112:08:111
30976993529,4cyclictest25-21ksoftirqd/110:01:541
30976993529,4cyclictest25-21ksoftirqd/109:22:551
30976993529,4cyclictest25-21ksoftirqd/108:10:431
3097699352,3cyclictest25-21ksoftirqd/109:00:501
3097699351,4cyclictest25-21ksoftirqd/111:15:011
30976993512,7cyclictest25-21ksoftirqd/109:15:001
30975993530,3cyclictest9-21ksoftirqd/010:50:000
30975993530,3cyclictest9-21ksoftirqd/010:50:000
30975993530,3cyclictest9-21ksoftirqd/010:10:000
30975993529,4cyclictest9-21ksoftirqd/009:22:020
30975993520,5cyclictest9-21ksoftirqd/012:05:500
30978993429,3cyclictest41-21ksoftirqd/310:00:433
30978993429,3cyclictest41-21ksoftirqd/309:12:593
30978993429,3cyclictest41-21ksoftirqd/308:15:493
30978993428,4cyclictest41-21ksoftirqd/309:42:153
3097899340,3cyclictest121rcu_preempt12:30:013
30977993429,3cyclictest33-21ksoftirqd/212:38:362
30977993429,3cyclictest33-21ksoftirqd/210:50:422
30977993429,3cyclictest33-21ksoftirqd/210:20:492
30977993429,3cyclictest33-21ksoftirqd/207:50:562
30977993428,4cyclictest33-21ksoftirqd/209:45:352
30977993428,4cyclictest33-21ksoftirqd/208:48:582
30977993428,4cyclictest33-21ksoftirqd/207:49:302
30977993428,4cyclictest33-21ksoftirqd/207:38:582
30977993419,5cyclictest33-21ksoftirqd/210:15:572
30977993419,3cyclictest33-21ksoftirqd/209:55:442
3097699347,2cyclictest25-21ksoftirqd/108:35:511
3097699345,4cyclictest25-21ksoftirqd/110:10:441
3097699345,3cyclictest25-21ksoftirqd/109:40:541
3097699345,2cyclictest121rcu_preempt07:40:411
3097699344,3cyclictest121rcu_preempt11:50:561
30976993431,2cyclictest25-21ksoftirqd/108:15:491
30976993430,3cyclictest25-21ksoftirqd/107:40:001
30976993429,3cyclictest25-21ksoftirqd/110:50:431
30976993429,3cyclictest25-21ksoftirqd/107:25:011
30976993428,4cyclictest25-21ksoftirqd/111:31:121
30976993428,4cyclictest25-21ksoftirqd/108:52:351
3097699341,4cyclictest25-21ksoftirqd/112:00:561
3097699341,3cyclictest121rcu_preempt12:30:531
30975993430,2cyclictest9-21ksoftirqd/011:30:500
30975993429,3cyclictest9-21ksoftirqd/010:50:500
30975993429,3cyclictest9-21ksoftirqd/010:28:530
57898330,15rtkit-daemon10012-21/usr/sbin/munin08:40:480
30978993329,3cyclictest41-21ksoftirqd/311:35:003
30978993329,3cyclictest41-21ksoftirqd/307:29:133
30978993328,3cyclictest41-21ksoftirqd/311:10:003
30978993328,3cyclictest41-21ksoftirqd/309:10:003
30978993328,3cyclictest41-21ksoftirqd/307:38:363
30978993327,4cyclictest41-21ksoftirqd/310:10:313
30978993327,4cyclictest41-21ksoftirqd/308:20:393
30978993327,4cyclictest41-21ksoftirqd/307:51:023
30977993329,2cyclictest33-21ksoftirqd/207:30:422
30977993328,3cyclictest33-21ksoftirqd/211:45:422
30977993327,4cyclictest33-21ksoftirqd/212:06:032
30977993327,4cyclictest33-21ksoftirqd/209:35:042
30977993327,4cyclictest33-21ksoftirqd/209:33:432
30977993327,4cyclictest33-21ksoftirqd/208:32:302
30977993327,4cyclictest33-21ksoftirqd/208:13:412
30977993327,3cyclictest33-21ksoftirqd/208:06:282
30977993322,10cyclictest33-21ksoftirqd/209:05:552
30977993319,3cyclictest33-21ksoftirqd/208:40:522
30977993318,3cyclictest33-21ksoftirqd/211:05:542
30977993318,3cyclictest33-21ksoftirqd/209:00:522
30977993317,4cyclictest33-21ksoftirqd/212:10:522
30977993317,4cyclictest33-21ksoftirqd/209:25:002
3097699334,3cyclictest121rcu_preempt07:55:491
3097699334,3cyclictest121rcu_preempt07:55:481
30976993327,3cyclictest25-21ksoftirqd/111:45:441
30975993328,3cyclictest9-21ksoftirqd/009:55:000
30975993328,3cyclictest9-21ksoftirqd/008:31:160
30975993328,3cyclictest19765-21cron07:55:000
30975993327,4cyclictest9-21ksoftirqd/012:34:330
30975993327,4cyclictest9-21ksoftirqd/009:42:080
30975993327,4cyclictest9-21ksoftirqd/009:03:450
30975993326,5cyclictest9-21ksoftirqd/007:26:010
139391330,0ptp4l401ktimersoftd/309:35:553
30978993228,3cyclictest41-21ksoftirqd/311:45:003
30978993228,2cyclictest41-21ksoftirqd/310:35:003
30978993228,2cyclictest41-21ksoftirqd/308:00:483
30978993228,2cyclictest41-21ksoftirqd/307:55:563
30978993228,2cyclictest41-21ksoftirqd/307:55:553
30978993227,3cyclictest41-21ksoftirqd/310:40:013
30978993226,4cyclictest41-21ksoftirqd/311:14:143
30978993226,4cyclictest41-21ksoftirqd/310:57:523
30978993226,4cyclictest41-21ksoftirqd/308:49:123
30977993227,3cyclictest33-21ksoftirqd/211:59:592
30977993227,3cyclictest33-21ksoftirqd/211:00:502
30977993227,3cyclictest33-21ksoftirqd/207:15:442
30977993226,4cyclictest33-21ksoftirqd/211:39:242
30977993226,3cyclictest33-21ksoftirqd/210:41:372
30977993221,9cyclictest33-21ksoftirqd/210:10:272
30977993218,3cyclictest33-21ksoftirqd/208:05:002
30976993226,4cyclictest25-21ksoftirqd/107:33:411
30975993228,2cyclictest9-21ksoftirqd/009:45:480
30975993227,3cyclictest9-21ksoftirqd/011:55:000
30975993227,3cyclictest9-21ksoftirqd/008:37:160
30975993227,3cyclictest9-21ksoftirqd/007:55:500
30975993227,3cyclictest9-21ksoftirqd/007:55:500
30975993227,3cyclictest9-21ksoftirqd/007:39:590
30975993227,3cyclictest14689-21sshd09:59:270
30975993226,4cyclictest9-21ksoftirqd/011:09:130
30975993226,4cyclictest9-21ksoftirqd/010:16:470
30975993226,4cyclictest9-21ksoftirqd/009:28:120
30975993226,4cyclictest9-21ksoftirqd/009:17:010
30975993226,4cyclictest9-21ksoftirqd/009:07:460
30975993226,4cyclictest9-21ksoftirqd/008:16:200
30975993226,4cyclictest9-21ksoftirqd/008:14:500
30975993213,6cyclictest9-21ksoftirqd/010:05:000
139391320,0ptp4l401ktimersoftd/310:40:173
30978993126,3cyclictest41-21ksoftirqd/312:05:513
30978993126,3cyclictest41-21ksoftirqd/311:28:183
30978993126,3cyclictest41-21ksoftirqd/311:25:013
30978993126,3cyclictest41-21ksoftirqd/307:40:553
30978993125,4cyclictest41-21ksoftirqd/310:16:203
30978993125,4cyclictest41-21ksoftirqd/308:31:433
30978993124,4cyclictest41-21ksoftirqd/311:35:443
30977993126,3cyclictest33-21ksoftirqd/212:34:572
30977993126,3cyclictest33-21ksoftirqd/208:30:002
30975993126,3cyclictest9-21ksoftirqd/008:25:000
30975993125,4cyclictest9-21ksoftirqd/011:45:240
30975993125,4cyclictest9-21ksoftirqd/011:28:460
30978993026,3cyclictest41-21ksoftirqd/311:15:583
30978993024,4cyclictest41-21ksoftirqd/309:55:403
30978993024,4cyclictest41-21ksoftirqd/309:33:523
30978993016,3cyclictest41-21ksoftirqd/312:20:553
30977993026,2cyclictest33-21ksoftirqd/210:55:582
30977993017,3cyclictest33-21ksoftirqd/210:05:442
30977993016,3cyclictest33-21ksoftirqd/208:20:462
30975993025,3cyclictest9-21ksoftirqd/012:15:500
30975993025,3cyclictest9-21ksoftirqd/007:15:410
30975993024,4cyclictest9-21ksoftirqd/012:29:040
30975993024,4cyclictest9-21ksoftirqd/010:31:140
30975993024,3cyclictest9-21ksoftirqd/007:45:430
139391300,0ptp4l401ktimersoftd/312:00:213
139391300,0ptp4l401ktimersoftd/309:20:503
3097899290,2cyclictest121rcu_preempt09:50:443
30977992924,3cyclictest33-21ksoftirqd/212:20:562
30975992924,3cyclictest9-21ksoftirqd/009:10:490
30975992924,3cyclictest9-21ksoftirqd/007:40:410
30975992924,3cyclictest9-21ksoftirqd/007:30:380
30975992923,4cyclictest9-21ksoftirqd/008:57:510
30975992922,5cyclictest9-21ksoftirqd/011:03:160
139391290,0ptp4l401ktimersoftd/308:52:593
30978992823,3cyclictest41-21ksoftirqd/308:35:293
30977992823,3cyclictest33-21ksoftirqd/207:10:252
30977992823,3cyclictest33-21ksoftirqd/207:10:252
30975992823,3cyclictest9-21ksoftirqd/012:23:570
30975992823,3cyclictest9-21ksoftirqd/012:01:360
30975992823,3cyclictest9-21ksoftirqd/008:47:040
30975992823,3cyclictest9-21ksoftirqd/008:25:540
30975992823,3cyclictest9-21ksoftirqd/007:10:570
30975992823,3cyclictest9-21ksoftirqd/007:10:570
30975992822,4cyclictest9-21ksoftirqd/011:35:210
30975992822,4cyclictest9-21ksoftirqd/010:59:310
30975992722,3cyclictest9-21ksoftirqd/011:17:190
30978992614,9cyclictest41-21ksoftirqd/307:20:433
30975992623,2cyclictest9-21ksoftirqd/011:40:510
30975992623,2cyclictest9-21ksoftirqd/011:20:490
30975992621,3cyclictest9-21ksoftirqd/011:57:540
30975992621,3cyclictest9-21ksoftirqd/010:40:510
30975992620,4cyclictest9-21ksoftirqd/012:14:400
30975992519,4cyclictest9-21ksoftirqd/010:22:520
30975992419,3cyclictest9-21ksoftirqd/011:10:000
30975992419,3cyclictest9-21ksoftirqd/010:10:420
30975992218,2cyclictest9-21ksoftirqd/012:35:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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