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2026-05-15 - 00:53
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rackbslot6.osadl.org (updated Thu May 14, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1634321500,4sleep3436799cyclictest11:58:553
1068911500,8ptp4l15380-21kworker/3:208:31:203
2070621460,4sleep1435299cyclictest09:05:011
84821360,3sleep0434699cyclictest12:15:100
311302620,5sleep2435999cyclictest11:40:112
311302620,5sleep2435999cyclictest11:40:112
72582600,4sleep341-21ksoftirqd/310:44:113
242102600,2sleep30-21swapper/309:14:433
318372570,4sleep3436799cyclictest12:14:573
143291550,2getstats0-21swapper/310:20:123
7572540,1sleep30-21swapper/310:36:333
4346995417,10cyclictest9-21ksoftirqd/013:05:070
4346995146,3cyclictest9-21ksoftirqd/013:54:590
254972500,1sleep30-21swapper/311:01:463
21852500,2sleep00-21swapper/011:10:340
4346994641,3cyclictest9-21ksoftirqd/013:30:000
4346994635,3cyclictest9-21ksoftirqd/013:40:040
4346994624,4cyclictest9-21ksoftirqd/013:10:170
4346994620,4cyclictest9-21ksoftirqd/011:55:090
434699455,8cyclictest9-21ksoftirqd/011:44:570
434699455,8cyclictest9-21ksoftirqd/011:44:570
4346994540,3cyclictest9-21ksoftirqd/009:34:540
416124525,9sleep00-21swapper/008:33:410
4346994439,3cyclictest9-21ksoftirqd/013:50:000
4346994438,3cyclictest9-21ksoftirqd/010:14:560
4346994419,4cyclictest9-21ksoftirqd/010:09:590
4346994418,5cyclictest9-21ksoftirqd/013:25:120
4346994336,4cyclictest9-21ksoftirqd/012:34:520
4346994333,3cyclictest9-21ksoftirqd/011:15:110
4346994332,3cyclictest9-21ksoftirqd/013:00:010
4346994319,4cyclictest9-21ksoftirqd/012:55:050
4346994319,4cyclictest9-21ksoftirqd/009:20:050
436799422,28cyclictest4752-21apt-get14:00:023
4346994236,4cyclictest9-21ksoftirqd/011:49:500
4346994236,4cyclictest9-21ksoftirqd/011:49:500
4346994236,3cyclictest9-21ksoftirqd/011:04:580
4346994231,3cyclictest9-21ksoftirqd/010:30:060
4346994218,4cyclictest9-21ksoftirqd/011:36:090
4346994135,3cyclictest9-21ksoftirqd/010:54:550
4346994130,3cyclictest9-21ksoftirqd/010:20:060
4346994126,11cyclictest9-21ksoftirqd/012:30:080
4346994118,4cyclictest9-21ksoftirqd/008:44:590
434699404,3cyclictest9-21ksoftirqd/013:20:050
4346994028,3cyclictest9-21ksoftirqd/009:24:590
4346994024,4cyclictest9-21ksoftirqd/013:15:010
4346994018,3cyclictest9-21ksoftirqd/009:00:110
4346994018,3cyclictest9-21ksoftirqd/008:55:030
4346994017,4cyclictest9-21ksoftirqd/011:44:320
4346994017,4cyclictest9-21ksoftirqd/011:44:320
4346994016,4cyclictest9-21ksoftirqd/013:35:270
4346994016,4cyclictest9-21ksoftirqd/013:35:270
4346994016,4cyclictest9-21ksoftirqd/012:22:060
106891400,1ptp4l401ktimersoftd/312:24:253
436799390,2cyclictest0-21swapper/311:24:543
4346993915,4cyclictest9-21ksoftirqd/012:04:510
4346993915,4cyclictest9-21ksoftirqd/010:39:290
4346993915,4cyclictest9-21ksoftirqd/009:40:170
4346993914,4cyclictest9-21ksoftirqd/012:28:570
106891390,0ptp4l401ktimersoftd/311:39:593
106891390,0ptp4l401ktimersoftd/311:39:593
4352993832,3cyclictest25-21ksoftirqd/111:49:461
4352993832,3cyclictest25-21ksoftirqd/111:49:461
4346993833,3cyclictest9-21ksoftirqd/013:44:490
4346993833,3cyclictest9-21ksoftirqd/011:19:580
4346993826,3cyclictest9-21ksoftirqd/012:49:480
4346993816,4cyclictest9-21ksoftirqd/009:45:030
4346993814,4cyclictest9-21ksoftirqd/012:50:000
4346993814,4cyclictest9-21ksoftirqd/010:40:000
434699380,3cyclictest9-21ksoftirqd/012:40:040
106891380,1ptp4l401ktimersoftd/313:54:363
106891380,1ptp4l401ktimersoftd/313:36:543
106891380,1ptp4l401ktimersoftd/313:36:543
106891380,1ptp4l401ktimersoftd/313:33:543
106891380,1ptp4l401ktimersoftd/313:28:133
106891380,1ptp4l401ktimersoftd/313:00:113
106891380,1ptp4l401ktimersoftd/312:53:523
106891380,1ptp4l401ktimersoftd/312:49:263
106891380,1ptp4l401ktimersoftd/311:59:493
106891380,1ptp4l401ktimersoftd/311:45:583
106891380,1ptp4l401ktimersoftd/311:45:583
106891380,1ptp4l401ktimersoftd/311:33:243
106891380,1ptp4l401ktimersoftd/311:23:453
106891380,1ptp4l401ktimersoftd/311:12:063
106891380,1ptp4l401ktimersoftd/311:05:393
106891380,0ptp4l401ktimersoftd/313:42:553
436799372,27cyclictest12939-21apt-get10:49:573
4352993732,3cyclictest25-21ksoftirqd/110:59:451
434699377,6cyclictest9-21ksoftirqd/012:00:010
4346993731,3cyclictest9-21ksoftirqd/011:34:450
4346993731,3cyclictest9-21ksoftirqd/008:44:420
4346993730,4cyclictest9-21ksoftirqd/009:34:440
4346993716,7cyclictest9-21ksoftirqd/012:10:530
4346993716,4cyclictest9-21ksoftirqd/010:05:040
4346993716,4cyclictest9-21ksoftirqd/010:05:040
4346993715,3cyclictest9-21ksoftirqd/011:01:140
106891370,1ptp4l401ktimersoftd/313:44:573
106891370,1ptp4l401ktimersoftd/313:24:143
106891370,1ptp4l401ktimersoftd/313:05:363
106891370,1ptp4l401ktimersoftd/312:40:263
106891370,1ptp4l401ktimersoftd/312:37:463
106891370,1ptp4l401ktimersoftd/311:19:273
106891370,1ptp4l401ktimersoftd/309:24:553
106891370,0ptp4l401ktimersoftd/312:05:303
436799362,28cyclictest0-21swapper/309:44:543
436799361,26cyclictest27081-21apt-get09:19:553
436799360,6cyclictest4529-21/usr/sbin/munin08:35:053
4346993629,3cyclictest9-21ksoftirqd/010:49:450
4346993626,3cyclictest9-21ksoftirqd/009:14:570
434699361,3cyclictest9-21ksoftirqd/008:34:580
106891360,1ptp4l401ktimersoftd/313:55:253
106891360,1ptp4l401ktimersoftd/313:16:173
106891360,1ptp4l401ktimersoftd/313:12:443
106891360,1ptp4l401ktimersoftd/312:54:523
106891360,1ptp4l401ktimersoftd/311:53:003
106891360,1ptp4l401ktimersoftd/311:53:003
436799352,27cyclictest17822-21apt-get10:54:553
4367993514,18cyclictest13526-21sh12:29:363
436799350,3cyclictest10501-21head08:44:573
4352993529,3cyclictest25-21ksoftirqd/113:20:001
4352993525,6cyclictest25-21ksoftirqd/113:45:001
4346993529,3cyclictest9-21ksoftirqd/010:50:010
4346993524,3cyclictest9-21ksoftirqd/011:25:020
106891350,1ptp4l401ktimersoftd/312:10:593
106891350,1ptp4l401ktimersoftd/310:47:163
436799342,25cyclictest19774-21apt-get09:04:543
436799340,4cyclictest25755-21ls11:35:053
4352993426,3cyclictest25-21ksoftirqd/113:09:471
435299342,2cyclictest121rcu_preempt13:35:061
435299342,2cyclictest121rcu_preempt13:35:061
434699343,3cyclictest121rcu_preempt10:00:110
4346993428,3cyclictest9-21ksoftirqd/014:00:060
4346993422,3cyclictest9-21ksoftirqd/009:04:550
36622347,13sleep20-21swapper/208:30:122
21962343,16sleep12361-21cstates08:29:551
106891340,1ptp4l401ktimersoftd/312:33:483
4367993313,17cyclictest13833-21cat09:59:573
436799331,26cyclictest0-21swapper/308:49:533
436799331,25cyclictest17129-21apt-get08:59:543
436799330,3cyclictest0-21swapper/310:30:043
4352993327,3cyclictest25-21ksoftirqd/112:14:471
4352993324,4cyclictest25-21ksoftirqd/112:39:591
434699335,3cyclictest121rcu_preempt09:50:050
4346993328,3cyclictest9-21ksoftirqd/009:54:580
4346993327,3cyclictest9-21ksoftirqd/010:25:040
4346993327,3cyclictest9-21ksoftirqd/008:50:080
436799323,24cyclictest0-21swapper/309:39:533
436799321,25cyclictest25727-21apt-get10:24:573
436799320,2cyclictest0-21swapper/308:39:573
4359993225,4cyclictest27781-21cron10:29:442
4352993211,18cyclictest23416-21cpuspeed_turbos10:19:581
4346993226,3cyclictest9-21ksoftirqd/009:09:520
263062320,2sleep10-21swapper/112:09:171
436799312,24cyclictest0-21swapper/309:14:543
436799312,22cyclictest16036-21apt-get10:04:563
436799312,22cyclictest16036-21apt-get10:04:563
436799310,5cyclictest19373-21load10:10:033
436799310,4cyclictest3117-21snmp_o5powerctl09:35:063
4352993127,3cyclictest25-21ksoftirqd/113:30:061
4352993126,3cyclictest25-21ksoftirqd/113:14:481
4352993126,3cyclictest25-21ksoftirqd/111:00:021
4352993126,3cyclictest25-21ksoftirqd/109:19:431
19382310,2sleep20-21swapper/213:55:412
436799306,20cyclictest15074-21fschecks_count08:54:573
436799303,21cyclictest8913-21apt-get09:49:573
436799302,23cyclictest11281-21apt-get09:54:543
436799300,3cyclictest21954-21/usr/sbin/munin10:15:033
4352993025,3cyclictest25-21ksoftirqd/112:59:481
4352993025,3cyclictest25-21ksoftirqd/111:30:021
4352993025,3cyclictest25-21ksoftirqd/110:00:021
4352993024,4cyclictest25-21ksoftirqd/111:54:471
4352993024,4cyclictest25-21ksoftirqd/111:54:471
4352993024,3cyclictest25-21ksoftirqd/113:04:491
4352993024,3cyclictest25-21ksoftirqd/110:34:571
4359992923,3cyclictest33-21ksoftirqd/212:09:472
4359992922,4cyclictest33-21ksoftirqd/210:39:572
4352992924,3cyclictest25-21ksoftirqd/113:44:491
4352992924,3cyclictest25-21ksoftirqd/112:24:471
4352992924,3cyclictest25-21ksoftirqd/110:25:021
4352992923,3cyclictest25-21ksoftirqd/113:19:481
191822290,4sleep2321ktimersoftd/209:01:252
436799282,20cyclictest31836-21apt-get09:29:563
4359992822,3cyclictest33-21ksoftirqd/213:24:482
4352992823,3cyclictest25-21ksoftirqd/112:45:051
4352992823,3cyclictest25-21ksoftirqd/111:29:451
4352992823,3cyclictest25-21ksoftirqd/110:50:021
4352992823,3cyclictest25-21ksoftirqd/109:54:581
4352992823,3cyclictest25-21ksoftirqd/109:34:441
4352992823,3cyclictest25-21ksoftirqd/108:44:541
4352992823,3cyclictest25-21ksoftirqd/108:39:421
4352992822,3cyclictest25-21ksoftirqd/111:40:151
4352992822,3cyclictest25-21ksoftirqd/111:40:151
4352992822,3cyclictest25-21ksoftirqd/111:35:041
4352992822,3cyclictest25-21ksoftirqd/111:10:131
4352992822,3cyclictest25-21ksoftirqd/110:14:441
4352992822,3cyclictest25-21ksoftirqd/108:59:551
4352992815,4cyclictest25-21ksoftirqd/110:44:571
301362280,1sleep20-21swapper/213:19:482
4359992722,3cyclictest33-21ksoftirqd/213:45:182
4352992722,3cyclictest25-21ksoftirqd/113:50:061
4352992722,3cyclictest25-21ksoftirqd/112:34:481
4352992722,3cyclictest25-21ksoftirqd/110:40:021
4352992722,3cyclictest25-21ksoftirqd/110:34:451
4352992722,3cyclictest25-21ksoftirqd/108:49:551
4352992721,4cyclictest25-21ksoftirqd/112:19:011
4352992721,3cyclictest25-21ksoftirqd/113:29:491
4352992721,3cyclictest25-21ksoftirqd/110:19:441
4359992620,3cyclictest33-21ksoftirqd/213:10:132
4359992619,4cyclictest33-21ksoftirqd/208:41:342
435299264,3cyclictest25-21ksoftirqd/111:55:271
4352992621,3cyclictest25-21ksoftirqd/108:54:531
4352992620,3cyclictest25-21ksoftirqd/109:49:431
4352992620,3cyclictest25-21ksoftirqd/109:24:551
4352992614,9cyclictest8622-21sh11:18:091
435999259,8cyclictest0-21swapper/210:54:552
4359992519,3cyclictest33-21ksoftirqd/208:52:562
4359992518,4cyclictest33-21ksoftirqd/212:28:572
4359992513,9cyclictest24735-21sed12:40:052
4352992521,3cyclictest25-21ksoftirqd/109:50:141
4352992520,3cyclictest25-21ksoftirqd/114:00:081
4352992520,3cyclictest25-21ksoftirqd/112:25:051
4352992520,3cyclictest25-21ksoftirqd/111:59:591
4352992519,3cyclictest25-21ksoftirqd/108:40:001
4359992418,3cyclictest33-21ksoftirqd/209:31:442
4359992417,5cyclictest33-21ksoftirqd/211:05:072
4359992417,4cyclictest33-21ksoftirqd/213:43:492
4359992417,4cyclictest33-21ksoftirqd/212:52:142
4359992417,4cyclictest33-21ksoftirqd/210:21:502
4359992417,4cyclictest33-21ksoftirqd/210:02:312
4359992417,4cyclictest33-21ksoftirqd/209:28:072
4359992417,4cyclictest33-21ksoftirqd/208:56:152
435299242,7cyclictest25-21ksoftirqd/109:20:041
4352992420,3cyclictest25-21ksoftirqd/111:05:041
4352992419,3cyclictest25-21ksoftirqd/112:53:461
4352992419,3cyclictest25-21ksoftirqd/112:36:381
4352992418,3cyclictest25-21ksoftirqd/110:05:021
4352992418,3cyclictest25-21ksoftirqd/110:05:021
435299241,3cyclictest25-21ksoftirqd/111:24:111
435999233,13cyclictest12946-21ssh10:49:582
435999233,11cyclictest64-21kswapd012:19:592
4359992318,3cyclictest33-21ksoftirqd/213:39:492
4359992318,3cyclictest33-21ksoftirqd/213:39:492
4359992316,4cyclictest33-21ksoftirqd/210:44:472
4352992318,3cyclictest25-21ksoftirqd/113:55:031
435999229,10cyclictest14921-21seq11:24:562
435999223,11cyclictest7536-21ssh11:49:592
435999223,11cyclictest7536-21ssh11:49:592
4359992216,3cyclictest33-21ksoftirqd/209:51:032
4359992216,3cyclictest33-21ksoftirqd/209:39:532
4359992216,3cyclictest33-21ksoftirqd/208:45:592
4359992215,4cyclictest33-21ksoftirqd/209:20:362
4359992214,4cyclictest28787-21mailstats13:50:112
4359992212,7cyclictest1055-21runrttasks13:34:002
4352992213,3cyclictest25-21ksoftirqd/109:40:091
435999219,9cyclictest321ktimersoftd/213:04:402
4359992116,3cyclictest33-21ksoftirqd/211:45:092
4359992116,3cyclictest33-21ksoftirqd/211:45:092
4359992116,3cyclictest33-21ksoftirqd/210:14:592
4359992115,4cyclictest33-21ksoftirqd/209:56:132
4359992115,3cyclictest33-21ksoftirqd/210:38:122
4359992114,4cyclictest6710-21latency_hist08:39:422
4359992114,4cyclictest33-21ksoftirqd/213:07:112
435999211,18cyclictest0-21swapper/211:36:152
4352992116,3cyclictest25-21ksoftirqd/109:09:541
4352992115,4cyclictest25-21ksoftirqd/109:36:131
312252210,2sleep20-21swapper/212:14:252
435999207,10cyclictest19581-21gltestperf12:35:022
4359992014,3cyclictest33-21ksoftirqd/211:57:532
4359992014,3cyclictest33-21ksoftirqd/209:05:462
4359992013,4cyclictest5017-21sh13:25:442
4359992013,4cyclictest33-21ksoftirqd/209:11:042
4359992013,4cyclictest29735-21sed12:45:052
4359992013,4cyclictest22781-21sh11:32:052
4359992013,4cyclictest15137-21sed12:30:072
4359992013,4cyclictest14163-21sh11:24:112
435999201,2cyclictest0-21swapper/212:56:042
435999201,2cyclictest0-21swapper/210:10:132
435999200,2cyclictest0-21swapper/212:15:312
435999200,2cyclictest0-21swapper/211:10:262
435999200,2cyclictest0-21swapper/209:36:002
176512200,16sleep20-21swapper/212:00:042
435999191,3cyclictest6323-21ssh14:00:182
4359991913,3cyclictest8245-21vmstat09:45:122
4359991913,3cyclictest26561-21sh11:03:352
435999191,15cyclictest16393-21tune2fs10:05:002
435999191,15cyclictest16393-21tune2fs10:05:002
4359991911,4cyclictest5214-21cpuspeed_turbos11:14:572
4359991911,4cyclictest28739-21irqrtprio10:30:022
4359991811,4cyclictest24757-21df_inode09:14:562
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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