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2026-09-19 - 22:02
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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 Sat Sep 19, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911020,4ptp4l401ktimersoftd/309:40:543
281062654,10sleep20-21swapper/209:44:122
264602650,4sleep02830599cyclictest15:09:090
108552630,1sleep30-21swapper/312:40:093
210082620,1sleep00-21swapper/012:15:490
278682614,10sleep10-21swapper/109:41:041
106891590,1ptp4l401ktimersoftd/314:26:423
106891570,1ptp4l401ktimersoftd/314:23:143
106891570,1ptp4l401ktimersoftd/313:06:143
106891570,1ptp4l401ktimersoftd/313:06:143
106891570,1ptp4l401ktimersoftd/312:45:443
106891570,1ptp4l401ktimersoftd/311:36:323
106891570,1ptp4l401ktimersoftd/311:36:323
100442570,1sleep10-21swapper/113:45:431
2830999548,12cyclictest15496-21timedrift10:20:531
2830999534,13cyclictest7676-21sed14:15:511
2830999534,13cyclictest28958-21cat14:05:291
50272510,2sleep30-21swapper/312:33:273
2830999515,12cyclictest22764-21/usr/sbin/munin11:45:391
211662510,2sleep021167-21cat10:35:240
315172470,2sleep10-21swapper/115:14:281
2830999473,12cyclictest22281-21diskmemload14:42:091
106891470,9ptp4l401ktimersoftd/312:10:283
2830999463,12cyclictest4497-21rm12:00:161
2830999457,11cyclictest18184-21ssh12:46:021
106891450,2ptp4l19732-21kworker/3:113:38:263
106891450,1ptp4l401ktimersoftd/314:53:373
2830999430,15cyclictest0-21swapper/112:54:171
106891400,1ptp4l401ktimersoftd/312:54:253
28305993933,3cyclictest0-21swapper/009:45:220
106891390,1ptp4l401ktimersoftd/314:41:423
106891390,1ptp4l401ktimersoftd/314:11:013
106891390,1ptp4l401ktimersoftd/313:57:583
106891390,1ptp4l401ktimersoftd/311:45:343
106891380,2ptp4l19732-21kworker/3:113:30:443
106891380,1ptp4l401ktimersoftd/315:12:413
106891380,1ptp4l401ktimersoftd/315:09:223
106891380,1ptp4l401ktimersoftd/314:40:073
106891380,1ptp4l401ktimersoftd/314:07:553
106891380,1ptp4l401ktimersoftd/314:04:563
106891380,1ptp4l401ktimersoftd/313:54:483
106891380,1ptp4l401ktimersoftd/313:40:433
106891380,1ptp4l401ktimersoftd/313:28:013
106891380,1ptp4l401ktimersoftd/312:42:313
106891380,1ptp4l401ktimersoftd/312:09:193
106891380,1ptp4l401ktimersoftd/312:03:353
106891380,0ptp4l401ktimersoftd/312:25:143
106891380,0ptp4l401ktimersoftd/311:50:393
106891380,0ptp4l401ktimersoftd/309:45:423
106891380,0ptp4l401ktimersoftd/309:45:423
2830999372,10cyclictest0-21swapper/113:30:551
106891370,1ptp4l401ktimersoftd/315:02:343
106891370,1ptp4l401ktimersoftd/314:46:463
106891370,1ptp4l401ktimersoftd/314:32:323
106891370,1ptp4l401ktimersoftd/313:24:203
106891370,1ptp4l401ktimersoftd/313:05:053
106891370,1ptp4l401ktimersoftd/310:03:163
106891370,0ptp4l401ktimersoftd/313:10:553
2830999368,13cyclictest11518-21sh12:40:391
2830999366,17cyclictest22281-21diskmemload12:32:211
106891360,1ptp4l401ktimersoftd/314:55:483
106891360,1ptp4l401ktimersoftd/313:47:123
106891360,1ptp4l401ktimersoftd/313:16:453
106891360,1ptp4l401ktimersoftd/312:59:573
106891360,1ptp4l401ktimersoftd/311:59:033
106891360,1ptp4l401ktimersoftd/310:30:483
106891360,0ptp4l401ktimersoftd/312:27:323
106891360,0ptp4l401ktimersoftd/310:40:273
2830999359,22cyclictest19466-21grep13:20:571
2830999355,17cyclictest3333-21/usr/sbin/munin11:05:511
2830999355,17cyclictest22281-21diskmemload11:52:261
2830999355,16cyclictest0-21swapper/114:52:151
28309993522,6cyclictest17699-21apt-get15:00:421
28309993517,10cyclictest12853-21apt-get14:55:421
2832299344,27cyclictest233-21systemd-journal10:20:233
28322993427,4cyclictest41-21ksoftirqd/309:57:423
2830999345,15cyclictest3719-21ssh14:11:271
2830999345,14cyclictest12736-21ssh12:07:361
2830999344,16cyclictest22281-21diskmemload12:59:311
2830999341,11cyclictest0-21swapper/109:45:401
2830999341,11cyclictest0-21swapper/109:45:401
28305993413,13cyclictest46950irq/100-ens3-Tx12:55:390
106891340,1ptp4l401ktimersoftd/314:16:383
2830999335,14cyclictest30052-21snmp_o5powerctl10:50:491
2830999335,14cyclictest21813-21ssh13:56:441
28309993318,10cyclictest26331-21apt-get10:45:361
2830999327,21cyclictest3849-21sed14:45:491
106891320,1ptp4l401ktimersoftd/311:04:053
106891320,1ptp4l401ktimersoftd/309:51:123
106891320,0ptp4l401ktimersoftd/311:00:223
28309993118,8cyclictest5012-21ssh12:00:391
28309993110,18cyclictest22558-21/usr/sbin/munin13:25:461
215072310,4sleep22831799cyclictest13:56:122
106891310,9ptp4l401ktimersoftd/310:47:283
106891310,1ptp4l401ktimersoftd/310:05:363
106891310,0ptp4l401ktimersoftd/311:34:343
106891310,0ptp4l401ktimersoftd/311:34:343
6712300,1sleep20-21swapper/213:01:402
298072300,6sleep029788-21sh14:05:500
2830999307,9cyclictest26322-21unattended-upgr15:08:561
2830999306,9cyclictest3942-21if_err_ens313:05:451
2830999306,9cyclictest3942-21if_err_ens313:05:451
2830999303,12cyclictest0-21swapper/113:00:531
28309993023,4cyclictest23436-21cron10:40:241
106891300,0ptp4l401ktimersoftd/311:25:423
106891300,0ptp4l401ktimersoftd/311:16:423
2830999295,14cyclictest22281-21diskmemload14:26:291
28309992919,5cyclictest20225-21apt-get11:40:371
28309992916,6cyclictest13030-21apt-get13:15:421
2830999291,18cyclictest0-21swapper/111:00:371
28305992923,3cyclictest9-21ksoftirqd/013:35:280
28322992822,4cyclictest41-21ksoftirqd/310:25:243
28317992822,3cyclictest33-21ksoftirqd/214:13:152
28317992821,4cyclictest33-21ksoftirqd/212:15:382
2830999286,9cyclictest14716-21/usr/sbin/munin12:10:581
2830999285,8cyclictest3096-21ssh13:37:501
2830999285,6cyclictest0-21swapper/109:55:491
2830999284,14cyclictest22281-21diskmemload12:36:411
28309992817,8cyclictest16524-21needreboot11:30:471
28309992817,8cyclictest16524-21needreboot11:30:471
28309992816,6cyclictest4358-21apt-get10:00:351
28305992823,3cyclictest9-21ksoftirqd/013:50:280
28305992822,3cyclictest9-21ksoftirqd/010:55:240
28317992721,3cyclictest33-21ksoftirqd/214:41:252
28317992721,3cyclictest33-21ksoftirqd/212:08:552
2831799271,3cyclictest121rcu_preempt13:48:392
2830999273,5cyclictest0-21swapper/113:12:331
28309992716,6cyclictest23963-21apt-get10:40:361
2830999271,15cyclictest15111-21ssh14:24:241
28309992711,11cyclictest0-21swapper/110:15:351
2830999270,17cyclictest0-21swapper/111:10:411
28305992721,3cyclictest9-21ksoftirqd/012:10:390
245152270,4sleep0101ktimersoftd/012:20:390
106891270,1ptp4l401ktimersoftd/311:41:453
106891270,0ptp4l401ktimersoftd/310:52:493
28317992621,3cyclictest33-21ksoftirqd/213:18:272
28317992620,3cyclictest33-21ksoftirqd/209:55:402
28309992620,3cyclictest25-21ksoftirqd/111:00:251
28309992611,11cyclictest0-21swapper/113:40:411
28309992611,10cyclictest0-21swapper/112:25:371
28309992611,10cyclictest0-21swapper/111:20:391
28305992621,3cyclictest9-21ksoftirqd/012:03:050
28305992620,3cyclictest9-21ksoftirqd/015:10:540
28305992620,3cyclictest9-21ksoftirqd/012:35:270
28305992620,3cyclictest9-21ksoftirqd/010:00:340
28305992619,4cyclictest9-21ksoftirqd/011:42:080
28322992519,3cyclictest41-21ksoftirqd/311:13:493
28322992518,4cyclictest41-21ksoftirqd/311:06:593
28322992518,4cyclictest41-21ksoftirqd/310:40:133
2831799253,16cyclictest16128-21apt-get14:25:412
28317992520,3cyclictest33-21ksoftirqd/214:10:272
28317992519,3cyclictest33-21ksoftirqd/214:00:462
28317992519,3cyclictest33-21ksoftirqd/213:35:402
28317992519,3cyclictest33-21ksoftirqd/210:08:562
28317992518,4cyclictest33-21ksoftirqd/211:39:462
28317992518,4cyclictest33-21ksoftirqd/211:39:462
28317992518,4cyclictest33-21ksoftirqd/211:19:262
28317992518,4cyclictest33-21ksoftirqd/210:12:582
2830999257,15cyclictest22090-21grep14:30:521
2830999255,5cyclictest0-21swapper/110:25:401
28309992514,8cyclictest991-21unixbench_multi09:50:511
28309992511,9cyclictest0-21swapper/111:25:361
2830999250,11cyclictest0-21swapper/114:05:461
28305992519,4cyclictest9-21ksoftirqd/013:09:150
28305992519,4cyclictest9-21ksoftirqd/013:09:150
28305992519,3cyclictest9-21ksoftirqd/013:29:240
28305992519,3cyclictest9-21ksoftirqd/011:35:250
28305992519,3cyclictest9-21ksoftirqd/011:35:250
28305992518,4cyclictest9-21ksoftirqd/011:36:380
28305992518,4cyclictest9-21ksoftirqd/011:36:380
28305992518,4cyclictest9-21ksoftirqd/010:26:210
28305992511,6cyclictest9-21ksoftirqd/014:10:420
192852256,8sleep09-21ksoftirqd/012:47:580
106891250,1ptp4l401ktimersoftd/310:11:513
106891250,0ptp4l401ktimersoftd/310:27:233
28317992419,3cyclictest33-21ksoftirqd/214:45:482
28317992418,3cyclictest33-21ksoftirqd/213:44:242
28317992418,3cyclictest33-21ksoftirqd/212:12:222
28317992417,4cyclictest33-21ksoftirqd/213:52:512
28317992417,4cyclictest33-21ksoftirqd/211:42:102
28309992410,10cyclictest0-21swapper/112:20:371
2830599243,18cyclictest9228-21grep11:15:480
28305992418,3cyclictest9-21ksoftirqd/014:55:500
28305992418,3cyclictest9-21ksoftirqd/010:57:160
28305992417,4cyclictest9-21ksoftirqd/011:23:300
28305992411,6cyclictest101ktimersoftd/014:00:420
106891240,1ptp4l401ktimersoftd/312:15:513
106891240,1ptp4l401ktimersoftd/311:20:423
2831799238,12cyclictest9481-21rt-features13:10:522
28317992318,3cyclictest33-21ksoftirqd/212:22:332
28317992318,3cyclictest33-21ksoftirqd/209:45:482
28317992318,3cyclictest33-21ksoftirqd/209:45:482
28317992317,3cyclictest33-21ksoftirqd/211:22:032
28317992317,3cyclictest33-21ksoftirqd/210:57:292
28317992317,3cyclictest33-21ksoftirqd/210:42:272
28317992317,3cyclictest33-21ksoftirqd/210:33:332
28317992317,3cyclictest33-21ksoftirqd/209:50:342
28317992316,4cyclictest33-21ksoftirqd/211:32:152
28317992316,4cyclictest33-21ksoftirqd/211:32:152
28317992316,4cyclictest33-21ksoftirqd/211:01:122
28317992316,4cyclictest33-21ksoftirqd/210:17:562
28317992315,5cyclictest7318-21interrupts12:35:472
28317992310,3cyclictest17842-21cpu13:20:412
2831799230,2cyclictest121rcu_preempt12:02:472
2830999239,10cyclictest0-21swapper/111:35:361
2830999239,10cyclictest0-21swapper/111:35:361
28309992311,8cyclictest30304-21munin-run14:40:291
28309992311,8cyclictest22281-21diskmemload12:15:381
28305992318,3cyclictest9-21ksoftirqd/014:30:440
28305992318,3cyclictest9-21ksoftirqd/013:10:520
28305992317,4cyclictest11462-21ssh12:40:390
28305992317,3cyclictest9-21ksoftirqd/011:46:300
28305992317,3cyclictest1991-21apt-get09:55:350
28305992316,4cyclictest9-21ksoftirqd/011:07:160
28305992316,4cyclictest9-21ksoftirqd/010:48:450
28305992316,4cyclictest13105-21apt-get11:25:370
28305992315,4cyclictest1295-21df_inode11:00:390
1605622316,3sleep09-21ksoftirqd/013:18:050
2831799222,17cyclictest21819-21cut10:35:392
28317992215,4cyclictest8564-21awk14:50:472
28317992215,4cyclictest33-21ksoftirqd/215:03:212
28317992215,4cyclictest33-21ksoftirqd/214:18:162
28317992215,4cyclictest26719-21sh11:49:382
28317992215,4cyclictest21811-21awk12:50:472
28317992215,4cyclictest19427-21sh12:48:132
2831799221,19cyclictest0-21swapper/215:11:592
28309992211,8cyclictest9223-21/usr/sbin/munin10:10:381
28309992211,8cyclictest8707-21if_enp1s0.111:15:451
28309992211,8cyclictest7198-21gltestperf10:05:391
28309992211,7cyclictest15486-21cut13:50:481
28309992210,9cyclictest19647-21tr10:30:421
2830599226,12cyclictest12000-21irqrtprio14:20:480
28305992215,4cyclictest9-21ksoftirqd/010:39:540
28305992215,4cyclictest13978-21/usr/sbin/munin10:20:460
28305992215,4cyclictest10554-21sh12:39:370
2830599221,4cyclictest32059-21df09:50:370
28305992214,4cyclictest1055-21runrttasks13:04:120
2831799213,11cyclictest25864-21apt-get14:35:442
2831799212,8cyclictest3215-21snmp_o5powerctl12:30:542
28317992115,4cyclictest33-21ksoftirqd/211:07:302
28317992115,3cyclictest33-21ksoftirqd/210:27:432
28317992115,3cyclictest33-21ksoftirqd/210:03:282
28317992115,3cyclictest27848-21sh11:50:422
28317992115,3cyclictest22410-21sh15:05:362
28317992114,4cyclictest3929-21sh13:05:452
28317992114,4cyclictest3929-21sh13:05:452
28317992114,4cyclictest33-21ksoftirqd/214:30:452
28317992114,4cyclictest33-21ksoftirqd/211:12:162
28317992114,4cyclictest24953-21sh13:26:472
28317992114,4cyclictest14917-21sh14:24:042
28317992114,4cyclictest13208-21unixbench_singl12:40:552
28317992113,5cyclictest28779-21missed_timers13:30:502
2831799210,19cyclictest0-21swapper/211:56:062
2830599213,15cyclictest26337-21tail14:35:480
28305992116,3cyclictest9-21ksoftirqd/012:10:260
28305992116,3cyclictest24100-1kworker/u9:113:22:240
28305992115,3cyclictest9-21ksoftirqd/010:19:460
28305992115,3cyclictest9-21ksoftirqd/010:08:420
28305992114,4cyclictest9-21ksoftirqd/011:12:580
28305992114,4cyclictest9-21ksoftirqd/010:40:340
28305992114,4cyclictest22281-21diskmemload13:50:460
28317992015,3cyclictest33-21ksoftirqd/214:56:422
28317992014,3cyclictest33-21ksoftirqd/210:23:422
28317992014,3cyclictest31500-21sh12:26:322
28317992014,3cyclictest29675-21sh12:59:082
28317992014,3cyclictest29123-21grep10:50:402
28317992013,4cyclictest26254-21/usr/sbin/munin10:45:462
28305992015,3cyclictest9-21ksoftirqd/015:00:430
28305992014,3cyclictest9577-21fschecks_count10:10:380
28305992014,3cyclictest9-21ksoftirqd/014:47:090
28305992014,3cyclictest8477-21sh14:16:170
28305992014,3cyclictest4551-21sh13:40:240
28305992014,3cyclictest30223-21timerandwakeup09:45:510
28305992014,3cyclictest30223-21timerandwakeup09:45:510
28305992014,3cyclictest29814-21hddtemp_smartct12:25:420
28305992014,3cyclictest10689-21sh14:52:280
28305992013,4cyclictest378-21cat11:55:420
28305992013,4cyclictest18822-21sh14:27:270
212072200,2sleep00-21swapper/012:50:430
28305991914,3cyclictest4919-21/usr/sbin/munin13:40:390
28305991913,3cyclictest30621-21acpi14:40:400
28305991913,3cyclictest20934-21which13:55:530
28317991813,3cyclictest0-21swapper/211:25:302
28305991812,3cyclictest28811-21phc2sys11:50:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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