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2025-09-19 - 05:15
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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 all highest latencies:
System rackbslot1.osadl.org (updated Thu Sep 18, 2025 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4484092218189,19sleep30-21swapper/307:08:463
4484862208156,41sleep20-21swapper/207:09:442
4482872202153,40sleep00-21swapper/007:07:170
4482932192163,18sleep10-21swapper/107:07:221
448672996158,2cyclictest402029-21kworker/u8:1+flush-179:007:35:221
448667996055,3cyclictest247557-21chrome10:45:020
448679995955,2cyclictest672328-21exe10:45:013
448672995953,4cyclictest485435-21kworker/u8:3+flush-179:009:10:331
448672995650,3cyclictest501099-21kworker/u8:0+events_unbound08:10:091
448679995451,2cyclictest501099-21kworker/u8:0+events_unbound09:41:253
448672995450,3cyclictest779885-21kworker/u8:3+flush-179:012:35:111
448672995449,3cyclictest729007-21kworker/u8:0+events_unbound11:50:161
448672995443,3cyclictest620340-21kworker/u8:2+events_unbound10:35:301
448672995439,14cyclictest620340-21kworker/u8:2+flush-179:010:30:161
448679995349,3cyclictest697491-21kworker/u8:1+events_unbound11:15:203
448672995350,2cyclictest501099-21kworker/u8:0+flush-179:008:25:101
448667995349,3cyclictest729007-21kworker/u8:0+events_unbound11:50:300
448667995348,4cyclictest598777-31munin-html09:30:360
448672995247,4cyclictest568824-21kworker/u8:2+flush-179:009:05:211
448672995247,3cyclictest402029-21kworker/u8:1+flush-179:007:30:101
448672995147,3cyclictest485435-21kworker/u8:3+flush-179:008:40:111
448672995146,4cyclictest620340-21kworker/u8:2+events_unbound10:45:131
448672995146,3cyclictest728748-21/usr/share/muni11:40:121
448672995144,6cyclictest640269-21kworker/u8:4+flush-179:011:55:351
448667995148,2cyclictest501099-21kworker/u8:0+events_unbound08:45:070
448679995046,3cyclictest485435-21kworker/u8:3+flush-179:010:00:093
448677995045,4cyclictest779489-31munin-html12:25:332
448672995046,3cyclictest584186-21kworker/u8:4+flush-179:009:35:211
448672995046,3cyclictest501099-21kworker/u8:0+flush-179:008:20:151
448679994946,3cyclictest717336-21kworker/u8:0+events_unbound11:28:023
448679994946,2cyclictest707614-21kworker/u8:3+events_unbound11:38:023
448672994945,3cyclictest447666-21kworker/u8:0+flush-179:007:40:091
448672994945,3cyclictest447666-21kworker/u8:0+flush-179:007:40:091
448667994946,2cyclictest640269-21kworker/u8:4+events_unbound10:40:340
448679994844,3cyclictest501099-21kworker/u8:0+events_unbound08:16:093
448679994842,4cyclictest486028-21/usr/share/muni07:45:033
448677994835,12cyclictest593985-21kworker/2:0+pm09:32:452
448672994845,2cyclictest764642-21kworker/u8:0+flush-179:012:33:221
448672994845,2cyclictest402029-21kworker/u8:1+events_unbound08:00:091
448672994844,3cyclictest689024-21apt-get11:00:111
448672994844,3cyclictest584186-21kworker/u8:4+flush-179:009:40:311
448672994844,3cyclictest485435-21kworker/u8:3+flush-179:008:35:341
448672994843,3cyclictest402029-21kworker/u8:1+flush-179:007:25:301
448672994833,12cyclictest748646-21kworker/u8:1+flush-179:012:05:071
448667994846,2cyclictest501099-21kworker/u8:0+events_unbound09:55:010
448679994744,2cyclictest485435-21kworker/u8:3+events_unbound10:05:173
448679994742,4cyclictest511772-21/usr/share/muni08:10:083
448672994743,3cyclictest640269-21kworker/u8:4+flush-179:012:10:181
448672994743,3cyclictest584186-21kworker/u8:4+flush-179:009:30:251
448672994743,3cyclictest474875-21kworker/u8:2+flush-179:008:05:101
448672994743,3cyclictest474875-21kworker/u8:2+flush-179:008:05:101
448667994744,2cyclictest640269-21kworker/u8:4+events_unbound11:41:120
448679994644,2cyclictest501099-21kworker/u8:0+events_unbound09:58:033
448679994644,2cyclictest474875-21kworker/u8:2+events_unbound07:40:153
448679994644,2cyclictest474875-21kworker/u8:2+events_unbound07:40:143
448677994642,2cyclictest593985-21kworker/2:0+pm10:50:062
448677994640,4cyclictest672030-21latency_hist10:45:012
448677994638,5cyclictest511533-21munin-update08:10:162
448672994643,2cyclictest501099-21kworker/u8:0+flush-179:009:55:201
448672994642,3cyclictest764642-21kworker/u8:0+events_unbound12:25:201
448672994642,3cyclictest655249-21kworker/u8:1+flush-179:010:50:211
448667994642,3cyclictest723623-21/usr/share/muni11:35:060
448667994641,2cyclictest640269-21kworker/u8:4+events_unbound10:15:100
448679994540,4cyclictest667185-21/usr/share/muni10:40:153
448677994542,2cyclictest485435-21kworker/u8:3+flush-179:007:55:332
448677994540,4cyclictest247561-21ThreadPoolForeg11:46:532
448672994542,2cyclictest501099-21kworker/u8:0+flush-179:009:00:261
448672994541,3cyclictest620340-21kworker/u8:2+events_unbound09:53:361
448672994539,5cyclictest485435-21kworker/u8:3+flush-179:007:45:251
448672994539,2cyclictest620340-21kworker/u8:2+flush-179:010:10:151
448672994533,9cyclictest640269-21kworker/u8:4+flush-179:010:20:081
448667994542,3cyclictest779885-21kworker/u8:3+flush-179:012:28:570
448667994542,2cyclictest640269-21kworker/u8:4+flush-179:012:20:340
448679994440,3cyclictest609271-21kworker/u8:1+events_unbound09:51:363
448679994440,3cyclictest501099-21kworker/u8:0+events_unbound09:28:473
448677994441,2cyclictest552888-21kworker/2:1+pm08:55:572
448677994437,6cyclictest247516-21Chrome_ChildIOT12:15:082
448672994442,2cyclictest697491-21kworker/u8:1+events_unbound11:33:461
448672994441,2cyclictest578953-21kworker/u8:1+events_unbound09:20:121
448672994441,2cyclictest402029-21kworker/u8:1+flush-179:007:55:141
448672994440,3cyclictest501099-21kworker/u8:0+flush-179:008:59:201
448672994439,3cyclictest748646-21kworker/u8:1+flush-179:012:15:271
448667994440,3cyclictest764642-21kworker/u8:0+events_unbound12:38:520
448667994439,4cyclictest697491-21kworker/u8:1+events_unbound11:29:090
448677994336,5cyclictest641158-21/usr/share/muni10:15:022
448667994341,1cyclictest604290-21kworker/0:2+pm10:13:440
448667994340,3cyclictest485435-21kworker/u8:3+events_unbound09:17:020
448667994339,3cyclictest501099-21kworker/u8:0+flush-179:008:55:290
448679994240,2cyclictest402029-21kworker/u8:1+events_unbound07:53:443
448679994238,3cyclictest717336-21kworker/u8:0+events_unbound11:30:303
448679994234,7cyclictest640269-21kworker/u8:4+events_unbound10:19:013
448679994233,9cyclictest736880-21kworker/u8:1+events_unbound11:46:513
448672994239,2cyclictest707614-21kworker/u8:3+flush-179:011:25:231
448672994238,3cyclictest640269-21kworker/u8:4+flush-179:010:40:141
448672994236,4cyclictest459824-21latency_hist07:20:011
448667994239,3cyclictest748646-21kworker/u8:1+events_unbound12:08:440
448667994239,2cyclictest754012-21kworker/u8:0+events_unbound12:03:340
448667994238,3cyclictest501099-21kworker/u8:0+flush-179:009:38:410
448679994139,2cyclictest707614-21kworker/u8:3+events_unbound11:24:483
448679994139,2cyclictest697491-21kworker/u8:1+events_unbound11:13:533
448679994138,2cyclictest620340-21kworker/u8:2+events_unbound10:54:283
448679994138,2cyclictest474875-21kworker/u8:2+events_unbound07:57:203
448679994137,3cyclictest584186-21kworker/u8:4+flush-179:009:35:173
448679994136,4cyclictest652734-21ntpq10:25:143
448679994134,6cyclictest3415241-1kworker/3:1H+kblockd09:05:183
448677994137,2cyclictest453740-21kworker/2:3+pm07:40:032
448677994137,2cyclictest453740-21kworker/2:3+pm07:40:032
448677994137,2cyclictest453740-21kworker/2:3+pm07:24:342
448677994136,3cyclictest723216-21kworker/2:2+pm11:40:012
448677994135,5cyclictest673096-21ThreadPoolForeg10:45:132
448677994135,4cyclictest640160-21munin-limits10:10:332
448677994133,6cyclictest247561-21ThreadPoolForeg11:25:092
448677994129,2cyclictest3979484-1kworker/2:0H+kblockd07:13:412
448672994139,1cyclictest447666-21kworker/u8:0+flush-179:007:10:241
448672994137,3cyclictest707614-21kworker/u8:3+flush-179:011:35:211
448672994137,3cyclictest640269-21kworker/u8:4+events_unbound11:10:081
448672994135,5cyclictest558552-21latency_hist08:55:021
448667994138,2cyclictest501099-21kworker/u8:0+events_unbound08:30:070
448667994138,2cyclictest485435-21kworker/u8:3+events_unbound07:46:340
448667994137,3cyclictest661541-21kworker/u8:0+events_unbound10:32:170
448667994137,3cyclictest609300-31munin-graph09:40:540
448667994136,4cyclictest574120-21/usr/share/muni09:10:040
448667994127,13cyclictest764642-21kworker/u8:0+events_unbound12:18:530
448679994036,3cyclictest547446-21kworker/u8:1+events_unbound08:47:203
448679994035,4cyclictest522071-21/usr/share/muni08:20:133
448679994034,4cyclictest749457-21/usr/share/muni12:00:053
448677994037,2cyclictest723216-21kworker/2:2+pm12:06:532
448677994037,2cyclictest593985-21kworker/2:0+pm10:23:552
448677994037,2cyclictest593985-21kworker/2:0+pm09:40:052
448677994037,2cyclictest552888-21kworker/2:1+pm09:21:412
448677994037,2cyclictest527318-21kworker/2:2+pm08:32:392
448677994037,2cyclictest453740-21kworker/2:3+pm07:50:162
448677994036,3cyclictest694134-21apt-get11:05:132
448677994036,3cyclictest501099-21kworker/u8:0+events_unbound08:50:012
448677994036,2cyclictest593985-21kworker/2:0+pm10:28:162
448677994036,2cyclictest453740-21kworker/2:3+pm07:46:292
448677994035,3cyclictest568314-31munin-html09:00:352
448677994031,7cyclictest743384-31munin-html11:50:352
448677994020,17cyclictest247560-21ThreadPoolForeg09:27:332
44867799401,3cyclictest692293-31munin-graph11:01:262
448672994037,2cyclictest729007-21kworker/u8:0+flush-179:011:45:111
448672994037,2cyclictest620340-21kworker/u8:2+flush-179:010:25:231
448672994037,2cyclictest526783-21kworker/u8:2+flush-179:008:30:501
448672994037,2cyclictest485435-21kworker/u8:3+flush-179:010:00:111
448672994027,10cyclictest422635-21kworker/u8:2+flush-179:007:21:561
448667994037,3cyclictest620340-21kworker/u8:2+events_unbound10:26:520
448667994037,2cyclictest356957-1kworker/0:0H+kblockd11:02:240
448667994035,2cyclictest485435-21kworker/u8:3+events_unbound09:46:160
448667994031,8cyclictest450484-21kworker/0:0+pm08:23:080
448679993937,2cyclictest547446-21kworker/u8:1+events_unbound09:00:543
448679993936,2cyclictest779885-21kworker/u8:3+events_unbound12:27:223
448679993936,2cyclictest640269-21kworker/u8:4+events_unbound12:11:093
448679993936,2cyclictest501099-21kworker/u8:0+events_unbound08:30:343
448679993935,3cyclictest568824-21kworker/u8:2+events_unbound09:12:323
448679993935,3cyclictest501099-21kworker/u8:0+events_unbound08:06:303
448679993935,3cyclictest501099-21kworker/u8:0+events_unbound08:06:303
448677993937,1cyclictest708135-21kworker/2:3+pm11:24:592
448677993937,1cyclictest593985-21kworker/2:0+pm10:30:572
448677993937,1cyclictest453740-21kworker/2:3+pm07:27:132
448677993936,2cyclictest723216-21kworker/2:2+pm12:23:332
448677993936,2cyclictest723216-21kworker/2:2+pm11:55:332
448677993936,2cyclictest723216-21kworker/2:2+pm11:36:592
448677993936,2cyclictest593985-21kworker/2:0+pm10:57:482
448677993936,2cyclictest593985-21kworker/2:0+pm10:00:572
448677993936,2cyclictest593985-21kworker/2:0+pm09:50:352
448677993936,2cyclictest593985-21kworker/2:0+pm09:45:062
448677993936,2cyclictest552888-21kworker/2:1+pm09:11:242
448677993935,3cyclictest593985-21kworker/2:0+pm09:55:232
448677993935,3cyclictest552888-21kworker/2:1+pm09:08:192
448677993935,2cyclictest593985-21kworker/2:0+pm10:07:432
448677993934,3cyclictest453740-21kworker/2:3+pm08:01:072
448677993933,4cyclictest453740-21kworker/2:3+pm07:35:572
44867799391,4cyclictest247557-21chrome12:35:442
448672993935,3cyclictest640269-21kworker/u8:4+flush-179:010:15:091
448672993935,3cyclictest501236-21kworker/1:1+pm08:18:241
448672993933,5cyclictest630966-21/usr/share/muni10:05:091
448672993931,3cyclictest692372-21kworker/u8:0+flush-179:011:06:381
448667993937,1cyclictest450484-21kworker/0:0+pm07:22:430
448667993936,2cyclictest485435-21kworker/u8:3+events_unbound10:03:180
448667993935,3cyclictest697491-21kworker/u8:1+events_unbound11:33:330
448667993935,3cyclictest501099-21kworker/u8:0+flush-179:008:53:140
448667993934,4cyclictest640269-21kworker/u8:4+events_unbound12:11:140
448679993836,1cyclictest470081-21kworker/3:1+pm08:58:383
448679993835,2cyclictest640269-21kworker/u8:4+events_unbound11:53:543
448679993835,2cyclictest501099-21kworker/u8:0+events_unbound09:49:493
448679993835,2cyclictest402029-21kworker/u8:1+events_unbound07:34:053
448679993830,7cyclictest3415241-1kworker/3:1H+kblockd07:18:543
448677993836,1cyclictest593985-21kworker/2:0+pm10:39:142
448677993835,2cyclictest723216-21kworker/2:2+pm12:32:542
448677993835,2cyclictest723216-21kworker/2:2+pm12:10:332
448677993835,2cyclictest593985-21kworker/2:0+pm11:15:592
448677993835,2cyclictest593985-21kworker/2:0+pm09:38:592
448677993835,2cyclictest527318-21kworker/2:2+pm08:44:562
448677993835,2cyclictest516315-21kworker/2:0+pm08:20:062
448677993834,3cyclictest593985-21kworker/2:0+pm11:30:312
448677993834,3cyclictest3979484-1kworker/2:0H+kblockd12:02:432
448677993834,3cyclictest3979484-1kworker/2:0H+kblockd08:54:132
448677993834,2cyclictest3979484-1kworker/2:0H+kblockd07:17:262
44867799380,1cyclictest0-21swapper/209:16:092
448672993834,2cyclictest558317-21kworker/1:0+pm11:23:091
448667993836,2cyclictest640269-21kworker/u8:4+flush-179:011:09:000
448667993836,1cyclictest450484-21kworker/0:0+pm09:02:590
448667993836,1cyclictest1260-21snmpd07:54:260
448667993835,2cyclictest645844-21kworker/u8:0+events_unbound10:23:080
448667993834,3cyclictest640269-21kworker/u8:4+events_unbound11:10:230
448679993735,2cyclictest748646-21kworker/u8:1+events_unbound11:57:393
448679993735,2cyclictest501099-21kworker/u8:0+events_unbound08:03:373
448679993735,2cyclictest485435-21kworker/u8:3+events_unbound08:26:143
448679993734,2cyclictest584186-21kworker/u8:4+events_unbound09:33:133
448679993734,2cyclictest485435-21kworker/u8:3+events_unbound10:10:153
448679993734,2cyclictest3415241-1kworker/3:1H+kblockd12:34:483
448679993734,2cyclictest3415241-1kworker/3:1H+kblockd11:01:433
448679993734,2cyclictest3415241-1kworker/3:1H+kblockd09:15:563
448679993733,3cyclictest663337-21apt-get10:35:133
448679993732,4cyclictest247560-21ThreadPoolForeg12:40:013
448677993735,1cyclictest527318-21kworker/2:2+pm08:26:212
448677993735,1cyclictest453740-21kworker/2:3+pm08:06:162
448677993735,1cyclictest453740-21kworker/2:3+pm08:06:162
448677993735,1cyclictest453740-21kworker/2:3+pm07:32:362
448677993733,3cyclictest516315-21kworker/2:0+pm08:16:332
448672993734,2cyclictest631158-1kworker/1:2H+kblockd11:16:001
448672993734,2cyclictest349098-1kworker/1:0H+kblockd07:53:331
448667993735,2cyclictest584186-21kworker/u8:4+events_unbound09:27:450
448667993735,2cyclictest485435-21kworker/u8:3+events_unbound09:22:490
448667993734,2cyclictest677640-21kworker/0:0+pm10:52:490
448667993734,2cyclictest356957-1kworker/0:0H+kblockd09:58:380
448667993734,2cyclictest356957-1kworker/0:0H+kblockd08:14:080
448667993733,3cyclictest521409-21kworker/u8:1+events_unbound08:17:190
448667993733,3cyclictest506063-31munin-graph08:00:550
448679993634,1cyclictest3415241-1kworker/3:1H+kblockd11:42:333
448679993633,2cyclictest3415241-1kworker/3:1H+kblockd10:31:343
448679993632,3cyclictest640269-21kworker/u8:4+events_unbound11:07:523
448679993631,4cyclictest754502-21/usr/share/muni12:05:223
448679993631,4cyclictest475374-21/usr/share/muni07:35:083
448679993631,4cyclictest464935-21latency_hist07:25:013
448679993631,2cyclictest526783-21kworker/u8:2+events_unbound08:41:353
448677993629,5cyclictest698027-21/usr/share/muni11:10:022
448672993632,3cyclictest769924-21munin-update12:20:321
448667993635,1cyclictest450484-21kworker/0:0+pm07:43:290
448667993635,1cyclictest450484-21kworker/0:0+pm07:43:280
448667993634,1cyclictest356957-1kworker/0:0H+kblockd11:15:030
448667993634,1cyclictest356957-1kworker/0:0H+kblockd08:29:230
448667993634,1cyclictest107350-21ntpd07:11:540
448667993633,3cyclictest474875-21kworker/u8:2+flush-179:007:56:250
448667993633,2cyclictest356957-1kworker/0:0H+kblockd12:30:060
448667993633,2cyclictest356957-1kworker/0:0H+kblockd07:32:440
448667993633,2cyclictest356957-1kworker/0:0H+kblockd07:18:030
448667993632,3cyclictest620340-21kworker/u8:2+flush-179:010:35:150
448667993632,3cyclictest247468-13Chrome_IOThread07:29:000
448679993534,1cyclictest3415241-1kworker/3:1H+kblockd08:36:383
448679993530,4cyclictest448832-21/usr/share/muni07:10:153
448672993532,2cyclictest631158-1kworker/1:2H+kblockd10:55:351
448672993532,2cyclictest578953-21kworker/u8:1+flush-179:009:19:491
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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