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2026-04-25 - 15:24
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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 all highest latencies:
System rackbslot6.osadl.org (updated Sat Apr 25, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2555921410,4sleep11757999cyclictest11:44:351
1068911110,41ptp4l401ktimersoftd/308:21:083
106891740,1ptp4l401ktimersoftd/312:07:463
106891690,1ptp4l401ktimersoftd/313:10:113
106891690,1ptp4l401ktimersoftd/312:13:483
106891680,1ptp4l401ktimersoftd/312:25:173
154152664,47sleep00-21swapper/008:19:250
106891660,2ptp4l19536-21kworker/3:113:44:033
290712630,2sleep20-21swapper/211:48:502
223902630,2sleep30-21swapper/311:41:083
106891610,1ptp4l401ktimersoftd/310:38:373
208402600,2sleep00-21swapper/012:13:370
1758799605,21cyclictest3934-21/usr/sbin/munin13:34:452
1758799600,23cyclictest9064-21/usr/sbin/munin13:39:482
1758799591,22cyclictest28983-21mailstats11:14:382
135562590,1sleep00-21swapper/013:11:540
1758799581,25cyclictest10695-21diskmemload12:37:562
106891580,1ptp4l401ktimersoftd/310:53:113
1758799571,23cyclictest17702-21irqstats12:09:342
106891570,1ptp4l401ktimersoftd/313:17:383
106891570,1ptp4l401ktimersoftd/312:31:323
106891570,1ptp4l401ktimersoftd/312:16:273
106891570,1ptp4l401ktimersoftd/309:24:263
1758799561,27cyclictest25890-21chrt12:18:532
1758799560,24cyclictest32505-21taskset12:59:082
1758799560,24cyclictest32505-21taskset12:59:082
1758799560,21cyclictest19149-21ssh11:04:402
1758799560,21cyclictest19149-21ssh11:04:402
17579995614,7cyclictest25-21ksoftirqd/110:39:281
134392560,2sleep10-21swapper/110:25:341
106891560,1ptp4l401ktimersoftd/311:32:253
1758799550,23cyclictest8056-21taskset10:15:582
1758799550,21cyclictest216492chrt12:47:112
293462540,2sleep00-21swapper/013:28:530
1758799540,26cyclictest24965-21chrt08:34:552
17579995413,6cyclictest25-21ksoftirqd/112:18:421
106891530,1ptp4l401ktimersoftd/310:23:383
1757999527,14cyclictest26196-21rm12:51:391
1757999527,14cyclictest26196-21rm12:51:391
106891520,2ptp4l9282-21kworker/3:211:38:483
1758799510,20cyclictest9898-21ssh11:29:272
17579995117,8cyclictest25-21ksoftirqd/110:49:431
17570995121,8cyclictest9-21ksoftirqd/008:54:280
17570995121,10cyclictest9-21ksoftirqd/012:24:310
1758799501,21cyclictest24225-21snmp_o5powerctl11:09:432
1757999506,13cyclictest3691-21rm12:29:211
1757999506,13cyclictest11133-21rm13:43:101
17579995013,6cyclictest25-21ksoftirqd/113:01:471
132692500,2sleep00-21swapper/011:32:140
1757999492,11cyclictest20502-21taskset10:34:131
17579994914,4cyclictest25-21ksoftirqd/110:39:051
1757999491,17cyclictest7154-21ssh11:25:051
1757999490,18cyclictest9592-21chrt12:01:011
106891490,2ptp4l9282-21kworker/3:211:10:013
1757999485,8cyclictest18096-21cut09:29:311
1757999480,12cyclictest3691-21ssh11:22:291
1757099487,9cyclictest9-21ksoftirqd/010:49:300
1757099487,9cyclictest27204-21idleruntime-cro11:14:150
1757099486,10cyclictest9-21ksoftirqd/010:44:320
1757099484,9cyclictest9-21ksoftirqd/011:39:330
1757099484,9cyclictest9-21ksoftirqd/010:34:330
1757099484,10cyclictest9-21ksoftirqd/013:29:360
17570994821,9cyclictest9-21ksoftirqd/012:14:280
17570994816,8cyclictest9-21ksoftirqd/011:02:230
6162470,2sleep20-21swapper/211:52:232
1757999476,8cyclictest29373-21ls08:44:391
1757999476,8cyclictest19275-21/usr/sbin/munin11:04:411
1757999476,8cyclictest19275-21/usr/sbin/munin11:04:411
1757999475,7cyclictest17074-21cut12:09:311
1757999472,12cyclictest1554-21grep08:54:331
1757999471,13cyclictest32740-21ssh13:31:201
1757999470,17cyclictest24137-21ssh13:23:181
1757999470,17cyclictest21097-21chrt12:46:141
1757999470,13cyclictest28894-21ssh12:20:411
1757099475,8cyclictest10695-21diskmemload11:34:330
1757099474,10cyclictest9-21ksoftirqd/012:39:370
1757099473,8cyclictest9-21ksoftirqd/012:59:460
106891470,13ptp4l19536-21kworker/3:112:34:233
1757999464,7cyclictest103762chrt13:09:271
17579994611,6cyclictest25-21ksoftirqd/109:49:381
1757999461,12cyclictest30891-21ssh11:17:141
1757999461,12cyclictest22684-21ssh11:41:391
1757999461,12cyclictest1343-21chrt12:25:421
1757999460,12cyclictest15667-21ssh12:08:031
1757099467,4cyclictest24138-21apt09:44:130
1757099466,10cyclictest9-21ksoftirqd/011:19:310
1757099465,11cyclictest9-21ksoftirqd/012:09:160
1757099464,8cyclictest10121-21gpgv13:09:180
1757099463,5cyclictest26332-21ssh12:51:530
1757099463,5cyclictest26332-21ssh12:51:530
1757099462,7cyclictest14648-21munin-plugin-st09:24:120
1757099462,6cyclictest2552-21ssh11:54:320
106891460,2ptp4l14859-21kworker/3:108:49:533
106891460,10ptp4l401ktimersoftd/310:07:383
1757999458,6cyclictest25-21ksoftirqd/113:24:451
1757999458,6cyclictest25-21ksoftirqd/109:16:241
1757999455,8cyclictest30018-21ssh12:54:491
1757999455,8cyclictest30018-21ssh12:54:491
17579994512,6cyclictest25-21ksoftirqd/113:49:481
1757999451,13cyclictest8530-21ssh13:07:001
1757999451,13cyclictest5245-21ssh11:56:551
1757999451,13cyclictest1034-21ssh11:53:051
17579994510,6cyclictest25-21ksoftirqd/112:39:501
1757999450,12cyclictest16050-21ssh11:01:451
1757099457,3cyclictest9-21ksoftirqd/012:04:170
1757099455,10cyclictest9-21ksoftirqd/010:54:370
1757099453,9cyclictest9-21ksoftirqd/013:44:470
17570994535,3cyclictest9-21ksoftirqd/010:30:390
1757099451,7cyclictest9-21ksoftirqd/011:49:160
1757099450,6cyclictest9-21ksoftirqd/010:24:300
1757099450,14cyclictest9-21ksoftirqd/010:39:280
1452914518,4phc2sys41-21ksoftirqd/313:44:563
1757999447,6cyclictest25-21ksoftirqd/110:45:471
17579994415,4cyclictest25-21ksoftirqd/113:45:281
1757999441,13cyclictest7187-21chrt09:07:461
1757999441,13cyclictest7187-21chrt09:07:461
1757999440,13cyclictest11763-21ssh10:57:431
1757999440,11cyclictest10695-21diskmemload11:37:391
1757099446,10cyclictest9-21ksoftirqd/009:34:130
1757099445,9cyclictest9-21ksoftirqd/013:39:310
1757099445,9cyclictest9-21ksoftirqd/009:54:320
17570994434,3cyclictest9-21ksoftirqd/012:56:410
17570994434,3cyclictest9-21ksoftirqd/012:56:410
17570994431,3cyclictest9-21ksoftirqd/012:30:360
1757099443,10cyclictest9-21ksoftirqd/009:09:300
17570994430,3cyclictest9-21ksoftirqd/011:26:060
1757099442,10cyclictest9-21ksoftirqd/012:34:350
17570994419,10cyclictest9-21ksoftirqd/009:04:340
17570994419,10cyclictest9-21ksoftirqd/009:04:340
17570994418,4cyclictest9-21ksoftirqd/012:22:340
17570994418,4cyclictest9-21ksoftirqd/011:07:320
17570994418,4cyclictest9-21ksoftirqd/011:07:320
1757099441,11cyclictest9-21ksoftirqd/011:17:120
1757999431,11cyclictest4877-21chrt09:03:281
17579994310,7cyclictest25-21ksoftirqd/111:13:421
1757999430,12cyclictest3253-21chrt10:05:191
1757999430,11cyclictest32164-21chrt08:51:161
1757099435,9cyclictest9-21ksoftirqd/013:34:280
17570994332,3cyclictest9-21ksoftirqd/010:14:330
17570994332,3cyclictest9-21ksoftirqd/009:44:410
17570994331,3cyclictest9-21ksoftirqd/013:19:400
1757099433,10cyclictest9-21ksoftirqd/011:52:230
1757099432,9cyclictest9-21ksoftirqd/009:59:300
17570994322,4cyclictest9-21ksoftirqd/010:04:320
17570994321,4cyclictest9-21ksoftirqd/012:44:390
1758799421,27cyclictest9799-21chrt12:01:222
1757999427,6cyclictest25-21ksoftirqd/113:36:411
1757999424,6cyclictest275082chrt08:42:121
1757999424,5cyclictest25-21ksoftirqd/113:14:411
1757999423,7cyclictest47050irq/101-ens3-Tx11:32:071
1757999423,6cyclictest25-21ksoftirqd/109:19:271
17579994212,8cyclictest25-21ksoftirqd/109:46:261
1757999420,12cyclictest22859-21chrt08:33:371
1757999420,12cyclictest16726-21chrt09:25:401
1757099425,8cyclictest9-21ksoftirqd/013:18:470
1757099424,11cyclictest9-21ksoftirqd/008:24:480
17570994229,3cyclictest9-21ksoftirqd/013:49:560
1757099421,6cyclictest9-21ksoftirqd/008:49:260
1757099421,10cyclictest9-21ksoftirqd/009:49:300
1758799411,23cyclictest12117-21/usr/sbin/munin13:44:482
1757999417,6cyclictest25-21ksoftirqd/112:38:111
1757999411,11cyclictest30139-21latency09:54:321
1757999410,12cyclictest25154-21chrt08:37:231
1757099415,10cyclictest9-21ksoftirqd/009:34:430
1757099414,9cyclictest9-21ksoftirqd/008:34:310
1757099413,11cyclictest9-21ksoftirqd/009:14:420
1757099413,10cyclictest9-21ksoftirqd/010:19:430
1757099412,8cyclictest9-21ksoftirqd/008:39:290
106891410,1ptp4l401ktimersoftd/311:18:203
1758799401,23cyclictest3587-21python11:54:402
1758799400,19cyclictest0-21swapper/212:04:292
1757999404,6cyclictest9450-21chrt09:11:271
1757999403,6cyclictest25-21ksoftirqd/108:24:481
1757999403,5cyclictest25-21ksoftirqd/109:39:131
1757099407,7cyclictest9-21ksoftirqd/008:49:110
1757099406,4cyclictest9-21ksoftirqd/008:59:120
106891400,1ptp4l401ktimersoftd/312:39:423
1758799391,22cyclictest13465-21/usr/sbin/munin12:39:342
1758799391,21cyclictest5113-21apt-get11:24:272
1757999393,5cyclictest25-21ksoftirqd/110:19:361
1757099394,10cyclictest9-21ksoftirqd/008:29:410
1757099391,11cyclictest9-21ksoftirqd/009:24:320
1757099391,10cyclictest9-21ksoftirqd/010:14:140
106891390,1ptp4l401ktimersoftd/311:51:053
106891390,1ptp4l401ktimersoftd/311:19:473
106891390,0ptp4l401ktimersoftd/312:00:053
1758799381,22cyclictest16288-21/usr/sbin/munin11:34:382
1758799380,23cyclictest29819-21taskset08:46:302
1758799380,23cyclictest10695-21diskmemload13:09:542
1758799380,21cyclictest10505-21taskset10:55:342
1757999380,8cyclictest25-21ksoftirqd/110:01:281
106891380,1ptp4l401ktimersoftd/313:53:233
106891380,1ptp4l401ktimersoftd/313:36:183
106891380,1ptp4l401ktimersoftd/313:26:193
106891380,1ptp4l401ktimersoftd/312:59:513
106891380,1ptp4l401ktimersoftd/312:45:133
106891380,1ptp4l401ktimersoftd/311:59:133
106891380,1ptp4l401ktimersoftd/309:59:313
1758799371,22cyclictest2808-21/usr/sbin/munin08:59:362
1758799370,23cyclictest23193-21/usr/sbin/munin12:49:472
1758799370,23cyclictest23193-21/usr/sbin/munin12:49:472
106891370,1ptp4l401ktimersoftd/313:23:583
106891370,1ptp4l401ktimersoftd/313:07:423
106891370,1ptp4l401ktimersoftd/310:59:193
106891370,1ptp4l401ktimersoftd/310:47:263
106891370,1ptp4l401ktimersoftd/310:42:093
106891370,1ptp4l401ktimersoftd/310:27:393
1758799360,20cyclictest0-21swapper/213:19:392
1758799360,20cyclictest0-21swapper/210:01:342
1655823615,8sleep20-21swapper/208:19:362
106891360,1ptp4l401ktimersoftd/311:26:163
106891360,1ptp4l401ktimersoftd/311:08:163
106891360,1ptp4l401ktimersoftd/311:08:163
106891360,1ptp4l401ktimersoftd/310:29:313
106891360,1ptp4l401ktimersoftd/310:14:013
106891360,0ptp4l401ktimersoftd/313:33:163
106891360,0ptp4l401ktimersoftd/312:52:373
106891360,0ptp4l401ktimersoftd/312:52:373
17587993515,17cyclictest28860-21sh10:41:432
1758799351,31cyclictest8950-21snmp_o5powerctl09:09:372
1758799351,27cyclictest5251-21apt-get09:04:242
1758799351,27cyclictest5251-21apt-get09:04:242
1758799351,22cyclictest31428-21ssh10:44:332
17579993514,6cyclictest25-21ksoftirqd/109:39:321
106891350,1ptp4l401ktimersoftd/308:33:403
106891350,0ptp4l401ktimersoftd/312:21:073
106891350,0ptp4l401ktimersoftd/310:57:383
17587993414,17cyclictest1803-21sed11:19:422
1758799341,30cyclictest20509-21cron10:34:132
1758799341,30cyclictest13382-21fschecks_time10:59:292
1758799341,26cyclictest30024-21apt-get13:29:312
106891340,2ptp4l14859-21kworker/3:109:19:073
1758799339,21cyclictest30490-21tr08:49:262
1758799335,24cyclictest0-21swapper/209:24:332
1758799332,23cyclictest22077-21apt-get09:39:252
17587993314,16cyclictest25349-21cat13:24:312
17587993313,17cyclictest409-21tr08:54:252
17587993313,17cyclictest3906-21if_err_enp1s0.110:49:332
17587993313,17cyclictest24649-21expr09:44:262
1758799331,29cyclictest10695-21diskmemload11:44:122
106891330,1ptp4l401ktimersoftd/309:19:363
17587993213,16cyclictest1378-21sh12:25:462
1758799321,28cyclictest5410-21apt-get13:04:302
17587993212,17cyclictest29551-21ssh12:21:492
17587993212,17cyclictest18952-21phc2sys08:24:472
17587993212,17cyclictest17864-21if_enp1s0.109:29:302
17587993211,18cyclictest1571-21sed12:59:362
1758799320,29cyclictest11220-21cpuspeed_turbos10:24:272
106891320,1ptp4l401ktimersoftd/312:56:103
106891320,1ptp4l401ktimersoftd/312:56:103
106891320,11ptp4l401ktimersoftd/309:00:363
1758799312,26cyclictest4111-21cstates12:29:322
1758799312,22cyclictest26808-21apt-get09:49:262
1758799311,15cyclictest22191-21snmp_o5powerctl08:29:372
1758799310,29cyclictest0-21swapper/213:14:392
17579993115,7cyclictest25-21ksoftirqd/110:17:261
173122316,12sleep10-21swapper/108:22:171
106891310,1ptp4l401ktimersoftd/309:37:503
106891310,1ptp4l401ktimersoftd/308:39:363
106891310,0ptp4l401ktimersoftd/308:24:483
1758799302,22cyclictest29197-21apt-get09:54:252
1758799301,23cyclictest20933-21apt-get10:34:262
1758799301,23cyclictest10214-21apt-get09:14:252
17587993011,15cyclictest1975-21gltestperf10:04:302
106891300,0ptp4l401ktimersoftd/309:50:083
106891300,0ptp4l401ktimersoftd/308:36:473
1758799292,23cyclictest0-21swapper/208:39:242
1758799291,25cyclictest5924-21cron10:14:142
1758799290,25cyclictest19059-21taskset13:50:022
1757999295,6cyclictest5306-21ssh10:09:431
1758799281,24cyclictest9319-21irqrtprio10:19:342
1758799280,24cyclictest12944-21/usr/sbin/munin09:19:292
1758799271,22cyclictest19856-21cpuspeed_turbos09:34:272
106891270,1ptp4l401ktimersoftd/311:47:453
17591992619,4cyclictest41-21ksoftirqd/308:47:363
17591992519,4cyclictest41-21ksoftirqd/309:30:123
17591992518,4cyclictest41-21ksoftirqd/310:18:293
106891250,1ptp4l401ktimersoftd/309:04:343
106891250,1ptp4l401ktimersoftd/309:04:343
106891240,1ptp4l401ktimersoftd/309:54:283
106891240,1ptp4l401ktimersoftd/309:44:373
106891240,1ptp4l401ktimersoftd/309:39:293
106891240,1ptp4l401ktimersoftd/309:09:373
106891240,1ptp4l401ktimersoftd/308:54:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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