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2026-08-23 - 15:35
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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 highest latencies:
System rackbslot6.osadl.org (updated Sun Aug 23, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219921470,4sleep2284299cyclictest14:54:282
1068911040,3ptp4l401ktimersoftd/309:29:203
106891710,1ptp4l401ktimersoftd/311:48:083
106891710,1ptp4l401ktimersoftd/311:48:083
76132670,2sleep10-21swapper/113:53:081
245272670,5sleep324530-21fschecks_time11:20:463
106891660,1ptp4l401ktimersoftd/314:22:593
291182630,1sleep30-21swapper/314:48:433
191012610,2sleep10-21swapper/112:25:481
24042604,10sleep20-21swapper/209:26:142
106891600,1ptp4l401ktimersoftd/312:05:533
227542590,4sleep0283099cyclictest13:01:200
106891580,1ptp4l401ktimersoftd/314:07:223
106891580,1ptp4l401ktimersoftd/311:52:413
106891580,1ptp4l401ktimersoftd/311:52:413
106891560,1ptp4l401ktimersoftd/310:14:273
239142550,2sleep20-21swapper/211:57:102
106891550,1ptp4l401ktimersoftd/312:23:173
25222544,39sleep00-21swapper/009:27:450
192352540,2sleep20-21swapper/212:58:372
24412464,30sleep10-21swapper/109:26:411
106891460,2ptp4l14057-21kworker/3:013:53:033
106891450,1ptp4l401ktimersoftd/314:02:463
106891450,1ptp4l401ktimersoftd/313:57:473
106891450,1ptp4l401ktimersoftd/311:15:423
106891440,1ptp4l401ktimersoftd/315:00:343
106891430,1ptp4l401ktimersoftd/312:43:153
106891410,1ptp4l401ktimersoftd/314:38:533
106891410,1ptp4l401ktimersoftd/311:36:033
106891410,0ptp4l401ktimersoftd/312:28:213
106891390,1ptp4l401ktimersoftd/314:13:593
106891380,1ptp4l401ktimersoftd/314:53:363
106891380,1ptp4l401ktimersoftd/314:45:073
106891380,1ptp4l401ktimersoftd/314:31:213
106891380,1ptp4l401ktimersoftd/313:31:203
106891380,1ptp4l401ktimersoftd/313:31:203
106891380,1ptp4l401ktimersoftd/313:15:393
106891380,1ptp4l401ktimersoftd/312:30:373
106891380,1ptp4l401ktimersoftd/312:17:263
106891380,1ptp4l401ktimersoftd/312:05:203
106891380,1ptp4l401ktimersoftd/311:34:513
106891380,1ptp4l401ktimersoftd/309:58:453
106891380,1ptp4l401ktimersoftd/309:58:453
106891380,1ptp4l401ktimersoftd/309:35:313
106891370,1ptp4l401ktimersoftd/314:16:533
106891370,1ptp4l401ktimersoftd/313:47:403
106891370,1ptp4l401ktimersoftd/313:41:113
106891370,1ptp4l401ktimersoftd/313:28:403
106891370,1ptp4l401ktimersoftd/313:15:303
106891370,1ptp4l401ktimersoftd/312:58:563
106891370,1ptp4l401ktimersoftd/312:50:463
106891370,1ptp4l401ktimersoftd/312:46:333
106891360,1ptp4l401ktimersoftd/313:08:093
106891360,1ptp4l401ktimersoftd/312:13:193
106891360,1ptp4l401ktimersoftd/311:41:173
106891360,0ptp4l401ktimersoftd/313:00:333
106891360,0ptp4l401ktimersoftd/312:00:023
106891350,2ptp4l14057-21kworker/3:013:23:593
106891350,0ptp4l401ktimersoftd/310:19:533
106891350,0ptp4l401ktimersoftd/310:02:103
2835993427,4cyclictest25-21ksoftirqd/112:50:451
106891340,2ptp4l17005-21kworker/3:111:03:003
106891340,1ptp4l401ktimersoftd/312:36:013
2835993326,4cyclictest25-21ksoftirqd/111:45:431
2835993326,4cyclictest25-21ksoftirqd/111:45:431
106891330,1ptp4l401ktimersoftd/314:30:183
106891330,1ptp4l401ktimersoftd/309:40:583
2830993220,6cyclictest9-21ksoftirqd/014:25:470
106891320,1ptp4l401ktimersoftd/313:36:233
106891320,1ptp4l401ktimersoftd/310:08:253
106891310,1ptp4l401ktimersoftd/311:26:553
106891310,0ptp4l401ktimersoftd/311:10:513
106891310,0ptp4l401ktimersoftd/310:32:363
287942300,3sleep2284299cyclictest12:02:042
2835993025,3cyclictest25-21ksoftirqd/112:35:441
2835993024,3cyclictest25-21ksoftirqd/113:45:331
2835993024,3cyclictest25-21ksoftirqd/112:50:331
2835993024,3cyclictest25-21ksoftirqd/111:55:311
2835993024,3cyclictest25-21ksoftirqd/111:55:311
106891300,1ptp4l401ktimersoftd/310:42:003
2835992924,3cyclictest25-21ksoftirqd/110:45:291
106891290,0ptp4l401ktimersoftd/309:33:203
283599286,4cyclictest25-21ksoftirqd/113:06:011
2835992823,3cyclictest25-21ksoftirqd/113:30:471
2835992823,3cyclictest25-21ksoftirqd/113:30:471
2835992823,3cyclictest25-21ksoftirqd/113:30:331
2835992822,3cyclictest25-21ksoftirqd/113:35:531
2835992822,3cyclictest25-21ksoftirqd/112:05:311
2835992822,3cyclictest25-21ksoftirqd/111:40:551
106891280,1ptp4l401ktimersoftd/309:54:133
2842992721,3cyclictest33-21ksoftirqd/214:01:002
2835992722,3cyclictest25-21ksoftirqd/110:30:461
2835992721,4cyclictest25-21ksoftirqd/112:10:451
2835992721,3cyclictest25-21ksoftirqd/114:21:051
2835992721,3cyclictest25-21ksoftirqd/113:00:501
2835992721,3cyclictest25-21ksoftirqd/111:30:451
2835992721,3cyclictest25-21ksoftirqd/111:26:001
2830992722,3cyclictest9-21ksoftirqd/013:20:320
2830992722,3cyclictest9-21ksoftirqd/012:30:320
2830992722,3cyclictest9-21ksoftirqd/011:45:300
106891270,0ptp4l401ktimersoftd/310:38:293
56192260,3sleep1283599cyclictest11:39:471
2848992619,4cyclictest41-21ksoftirqd/310:28:353
2848992619,4cyclictest41-21ksoftirqd/310:21:043
2842992621,3cyclictest33-21ksoftirqd/214:10:462
2842992620,3cyclictest33-21ksoftirqd/213:40:472
2842992620,3cyclictest33-21ksoftirqd/211:34:142
2842992620,3cyclictest33-21ksoftirqd/211:27:222
2842992620,3cyclictest33-21ksoftirqd/210:56:202
2842992619,4cyclictest33-21ksoftirqd/212:40:432
2842992619,4cyclictest33-21ksoftirqd/210:34:042
2842992619,4cyclictest33-21ksoftirqd/210:04:452
283599266,13cyclictest9432-21ssh13:55:461
2835992621,3cyclictest25-21ksoftirqd/113:45:451
2835992620,4cyclictest25-21ksoftirqd/114:35:491
2835992620,4cyclictest25-21ksoftirqd/109:41:381
2835992620,3cyclictest25-21ksoftirqd/113:10:521
2835992619,4cyclictest25-21ksoftirqd/112:09:141
2835992619,4cyclictest25-21ksoftirqd/111:25:131
283599260,23cyclictest24976-21expr12:30:541
2830992620,3cyclictest9-21ksoftirqd/014:12:060
106891260,1ptp4l401ktimersoftd/310:55:173
106891260,0ptp4l401ktimersoftd/310:49:533
284299255,4cyclictest121rcu_preempt11:15:302
284299254,15cyclictest3095-21apt-get09:30:392
2842992520,3cyclictest33-21ksoftirqd/211:51:082
2842992520,3cyclictest33-21ksoftirqd/211:51:082
2842992519,3cyclictest33-21ksoftirqd/210:29:122
2842992519,3cyclictest33-21ksoftirqd/209:48:192
2842992519,3cyclictest33-21ksoftirqd/209:39:152
2842992518,4cyclictest33-21ksoftirqd/214:55:462
2842992518,4cyclictest33-21ksoftirqd/213:46:072
2842992518,4cyclictest33-21ksoftirqd/211:22:532
2842992518,4cyclictest33-21ksoftirqd/210:37:092
2842992518,4cyclictest33-21ksoftirqd/209:42:372
2835992520,3cyclictest25-21ksoftirqd/114:10:341
2835992520,3cyclictest25-21ksoftirqd/111:15:301
2835992519,3cyclictest25-21ksoftirqd/114:55:531
2835992519,3cyclictest25-21ksoftirqd/111:00:431
283599250,4cyclictest13612-21tr10:55:521
2830992520,3cyclictest9-21ksoftirqd/014:41:030
2830992520,3cyclictest9-21ksoftirqd/012:58:550
2830992520,3cyclictest9-21ksoftirqd/011:49:370
2830992520,3cyclictest9-21ksoftirqd/011:49:370
2830992519,3cyclictest9-21ksoftirqd/010:18:270
106891250,0ptp4l401ktimersoftd/309:46:213
284299246,3cyclictest121rcu_preempt14:45:342
2842992419,3cyclictest33-21ksoftirqd/214:21:452
2842992418,3cyclictest33-21ksoftirqd/212:09:362
2842992417,4cyclictest33-21ksoftirqd/210:52:142
2842992417,4cyclictest12896-21tail11:45:532
2842992417,4cyclictest12896-21tail11:45:532
2835992419,3cyclictest25-21ksoftirqd/114:15:461
2835992419,3cyclictest25-21ksoftirqd/113:20:521
2835992419,3cyclictest25-21ksoftirqd/111:10:301
2835992418,3cyclictest25-21ksoftirqd/114:50:391
2835992418,3cyclictest25-21ksoftirqd/114:25:531
2835992418,3cyclictest25-21ksoftirqd/111:20:301
2835992418,3cyclictest25-21ksoftirqd/110:05:491
2835992417,4cyclictest25-21ksoftirqd/110:01:031
2830992419,3cyclictest9-21ksoftirqd/011:00:300
2830992418,3cyclictest9-21ksoftirqd/014:50:340
2830992418,3cyclictest9-21ksoftirqd/011:26:290
2830992418,3cyclictest9-21ksoftirqd/010:41:430
2830992418,3cyclictest9-21ksoftirqd/010:27:030
2830992417,4cyclictest9-21ksoftirqd/010:05:310
2830992417,4cyclictest9-21ksoftirqd/009:32:430
106891240,1ptp4l401ktimersoftd/311:05:433
106891240,1ptp4l401ktimersoftd/310:57:303
2842992317,3cyclictest33-21ksoftirqd/213:00:502
2842992317,3cyclictest33-21ksoftirqd/211:03:412
2842992317,3cyclictest33-21ksoftirqd/210:22:462
283599232,18cyclictest0-21swapper/113:15:461
2835992318,3cyclictest25-21ksoftirqd/112:43:531
2835992317,4cyclictest25-21ksoftirqd/110:35:461
2835992317,3cyclictest25-21ksoftirqd/114:50:351
2835992317,3cyclictest25-21ksoftirqd/114:00:511
2835992317,3cyclictest25-21ksoftirqd/112:15:451
2835992317,3cyclictest25-21ksoftirqd/110:50:301
2835992316,4cyclictest25-21ksoftirqd/112:00:301
2830992318,3cyclictest9-21ksoftirqd/013:59:310
2830992318,3cyclictest9-21ksoftirqd/013:54:240
2830992318,3cyclictest9-21ksoftirqd/013:45:520
2830992318,3cyclictest16168-21tr14:35:490
2830992317,4cyclictest9-21ksoftirqd/009:42:550
2830992317,3cyclictest9-21ksoftirqd/011:25:160
2830992317,3cyclictest9-21ksoftirqd/009:49:090
275872230,2sleep00-21swapper/012:34:390
326332220,3sleep20-21swapper/213:11:342
2842992217,3cyclictest33-21ksoftirqd/213:15:572
2842992216,3cyclictest33-21ksoftirqd/211:15:382
2842992216,3cyclictest33-21ksoftirqd/210:42:492
2842992215,4cyclictest9679-21ssh13:21:052
2842992215,4cyclictest33-21ksoftirqd/210:07:422
2842992215,4cyclictest19097-21sh13:31:022
2842992215,4cyclictest19097-21sh13:31:022
283599225,3cyclictest0-21swapper/109:30:391
2835992217,3cyclictest25-21ksoftirqd/110:15:491
2835992217,3cyclictest25-21ksoftirqd/109:55:421
2835992217,3cyclictest25-21ksoftirqd/109:55:421
2835992216,3cyclictest25-21ksoftirqd/110:14:521
2835992215,4cyclictest21348-21gltestperf14:40:511
283099225,6cyclictest1055-21runrttasks13:11:160
2830992217,3cyclictest9-21ksoftirqd/012:55:330
2830992217,3cyclictest9-21ksoftirqd/012:25:320
2830992217,3cyclictest9-21ksoftirqd/012:20:320
2830992217,3cyclictest9-21ksoftirqd/012:10:480
2830992217,3cyclictest9-21ksoftirqd/011:54:470
2830992217,3cyclictest9-21ksoftirqd/011:54:470
2830992217,3cyclictest9-21ksoftirqd/010:30:510
2830992217,3cyclictest9-21ksoftirqd/010:20:400
2830992217,3cyclictest9-21ksoftirqd/009:58:350
2830992217,3cyclictest9-21ksoftirqd/009:58:350
2830992215,4cyclictest27541-21df13:40:480
283099221,2cyclictest121rcu_preempt14:07:250
284299219,3cyclictest8922-21df12:15:462
2842992116,3cyclictest33-21ksoftirqd/211:40:312
2842992115,3cyclictest33-21ksoftirqd/210:16:032
2842992115,3cyclictest33-21ksoftirqd/210:14:472
2842992115,3cyclictest15619-21apt-get09:55:412
2842992115,3cyclictest15619-21apt-get09:55:412
2842992114,4cyclictest589-21ls12:40:322
2842992114,4cyclictest33-21ksoftirqd/214:07:022
2842992114,4cyclictest28674-21sh13:08:082
2842992114,4cyclictest16179-21ssh14:35:492
2842992110,9cyclictest13915-21irqrtprio09:50:482
2835992116,3cyclictest25-21ksoftirqd/114:11:021
2835992116,3cyclictest25-21ksoftirqd/112:20:451
2835992116,3cyclictest25-21ksoftirqd/110:50:461
2835992114,4cyclictest29167-21grep10:20:591
2835992114,4cyclictest25-21ksoftirqd/109:37:061
283599210,19cyclictest0-21swapper/110:25:431
2830992116,3cyclictest9-21ksoftirqd/014:20:530
2830992116,3cyclictest9-21ksoftirqd/011:05:460
2830992115,3cyclictest9-21ksoftirqd/011:04:130
2830992115,3cyclictest9-21ksoftirqd/010:36:550
2830992115,3cyclictest9-21ksoftirqd/010:14:590
2830992115,3cyclictest2688-21cut11:35:540
2830992114,4cyclictest9-21ksoftirqd/013:37:050
2830992114,4cyclictest9-21ksoftirqd/012:38:520
2830992114,4cyclictest9-21ksoftirqd/010:02:140
2842992015,3cyclictest33-21ksoftirqd/212:30:482
2842992014,4cyclictest10680-21sh11:44:412
2842992014,3cyclictest4876-21grep12:10:532
2842992014,3cyclictest33-21ksoftirqd/210:49:362
2842992014,3cyclictest12167-21missed_timers14:30:552
2842992013,4cyclictest7414-21sh13:52:462
2842992013,4cyclictest619-21sh14:20:062
2842992013,4cyclictest26842-21idleruntime-cro13:40:332
2842992013,4cyclictest18640-21/usr/sbin/munin12:25:452
2842992013,4cyclictest12477-21sh13:58:082
2842992012,5cyclictest1055-21runrttasks12:50:402
2835992015,3cyclictest25-21ksoftirqd/112:55:471
2835992014,4cyclictest12470-21find14:30:571
2830992015,3cyclictest9-21ksoftirqd/013:34:440
2830992015,3cyclictest9-21ksoftirqd/013:34:440
2830992015,3cyclictest9-21ksoftirqd/009:36:460
2830992014,4cyclictest9-21ksoftirqd/010:47:350
2830992014,4cyclictest8219-21sh13:20:500
2830992014,3cyclictest9-21ksoftirqd/015:00:350
2830992014,3cyclictest9-21ksoftirqd/012:46:460
2830992014,3cyclictest9-21ksoftirqd/011:19:460
2830992014,3cyclictest9-21ksoftirqd/010:53:240
2830992013,4cyclictest46950irq/100-ens3-Tx12:40:550
2830992013,4cyclictest28606-21diskmemload14:51:280
2830992013,4cyclictest28606-21diskmemload12:04:550
283099201,18cyclictest1765-1kworker/u9:213:26:190
283099201,17cyclictest0-21swapper/011:31:010
150152200,2sleep20-21swapper/213:26:562
2842991913,3cyclictest6390-21tr14:25:482
2842991912,4cyclictest29611-21sh14:49:332
2842991912,4cyclictest15378-21timedrift12:21:002
284299191,15cyclictest6356-21fschecks_time12:45:482
2835991913,3cyclictest25-21ksoftirqd/109:46:081
2830991914,3cyclictest9-21ksoftirqd/011:57:400
2830991913,3cyclictest28606-21diskmemload14:00:450
2830991913,3cyclictest25702-21grep13:05:450
2830991913,3cyclictest14779-21sed09:50:590
2830991912,4cyclictest28606-21diskmemload14:17:160
2830991912,4cyclictest28606-21diskmemload12:08:520
2830991912,4cyclictest19365-21acpi11:10:410
2830991912,4cyclictest11681-21if_enp1s014:30:520
2835991811,4cyclictest13349-21tr09:50:431
2842991711,3cyclictest17069-21cpu11:05:432
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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