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2025-12-26 - 16:00
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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 the highest latencies:
System rackbslot1.osadl.org (updated Fri Dec 26, 2025 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8351802205182,13sleep20-21swapper/207:09:032
8352172203179,14sleep00-21swapper/007:09:280
8350872194165,19sleep30-21swapper/307:07:513
8351452188166,13sleep10-21swapper/107:08:381
97997021040,2sleep13125721-21chrome09:25:261
835657998174,4cyclictest3125721-21chrome10:45:020
83566699668,17cyclictest997987-21chrome09:45:002
83566499669,52cyclictest3125721-21chrome09:45:011
835664996560,3cyclictest841603-21/usr/share/muni07:15:071
83565799651,18cyclictest247557-21chrome09:45:010
835664995854,3cyclictest983996-21kworker/u8:1+flush-179:010:05:201
835666995652,3cyclictest939191-21kworker/u8:3+flush-179:009:10:102
835666995650,5cyclictest1142297-31munin-html12:00:392
835664995651,4cyclictest1142695-21munin-update12:05:341
835664995651,4cyclictest1142695-21munin-update12:05:341
835657995653,2cyclictest1009049-21kworker/u8:0+events_unbound10:05:000
835666995551,3cyclictest824819-21kworker/u8:4+flush-179:009:05:032
835664995450,3cyclictest824819-21kworker/u8:4+flush-179:010:00:121
835657995453,1cyclictest738625-21kworker/u8:0+flush-179:007:15:240
835666995351,2cyclictest1009049-21kworker/u8:0+flush-179:010:20:012
835657995350,2cyclictest1044033-21kworker/u8:1+flush-179:012:00:010
835657995350,2cyclictest1044033-21kworker/u8:1+flush-179:012:00:010
835657995348,4cyclictest846744-21kworker/u8:1+events_unbound08:23:340
835666995147,3cyclictest1049370-21kworker/u8:2+flush-179:010:40:012
835657995147,3cyclictest1049198-21kworker/u8:0+events_unbound11:00:190
835666995045,3cyclictest1105427-21kworker/u8:0+flush-179:011:30:042
835666995044,5cyclictest945596-21/usr/share/muni08:55:062
835664995047,2cyclictest857257-21kworker/u8:3+events_unbound08:02:021
835664995047,2cyclictest857257-21kworker/u8:3+events_unbound08:02:021
835657995045,3cyclictest824819-21kworker/u8:4+events_unbound08:14:190
835666994945,3cyclictest1049198-21kworker/u8:0+flush-179:011:05:132
835664994944,3cyclictest939191-21kworker/u8:3+flush-179:009:30:081
835664994943,4cyclictest824819-21kworker/u8:4+flush-179:009:09:581
835664994942,5cyclictest247516-21Chrome_ChildIOT07:50:331
835657994946,2cyclictest1090758-21kworker/u8:2+flush-179:011:30:320
835657994944,3cyclictest1044033-21kworker/u8:1+events_unbound11:53:460
835657994942,6cyclictest893857-21/usr/share/muni08:05:020
835657994942,2cyclictest983996-21kworker/u8:1+events_unbound09:35:230
835664994844,3cyclictest846744-21kworker/u8:1+flush-179:008:15:051
835664994844,3cyclictest1044033-21kworker/u8:1+events_unbound11:00:211
835664994844,2cyclictest965407-21kworker/u8:2+flush-179:009:15:171
835664994842,4cyclictest1096356-21/usr/share/muni11:20:021
835657994847,1cyclictest835323-21kworker/u8:2+flush-179:007:10:090
835657994845,2cyclictest846744-21kworker/u8:1+events_unbound08:25:190
835657994845,2cyclictest835323-21kworker/u8:2+flush-179:007:30:260
835657994845,2cyclictest824819-21kworker/u8:4+flush-179:010:25:260
835657994845,2cyclictest824819-21kworker/u8:4+events_unbound08:45:110
835657994845,2cyclictest1044033-21kworker/u8:1+flush-179:011:35:250
835670994743,3cyclictest1116702-21kworker/u8:0+events_unbound11:44:593
835666994745,1cyclictest1111432-21kworker/u8:3+flush-179:012:15:132
835664994742,4cyclictest1029192-21/usr/share/muni10:15:021
835657994743,3cyclictest965407-21kworker/u8:2+events_unbound09:50:300
835657994743,3cyclictest1179043-21kworker/u8:0+flush-179:012:39:170
835670994642,3cyclictest1056079-21apt-get10:40:143
835666994643,2cyclictest983996-21kworker/u8:1+events_unbound09:55:102
835666994643,2cyclictest857257-21kworker/u8:3+flush-179:007:39:162
835666994643,2cyclictest846744-21kworker/u8:1+events_unbound08:25:002
835666994642,3cyclictest874155-21apt-get07:45:132
835666994642,3cyclictest247560-21ThreadPoolForeg10:10:592
835666994641,4cyclictest824819-21kworker/u8:4+flush-179:010:55:152
835666994641,4cyclictest1044033-21kworker/u8:1+flush-179:011:15:162
835664994642,3cyclictest939848-21munin-update08:50:351
835664994642,3cyclictest939848-21munin-update08:50:341
835664994641,4cyclictest846744-21kworker/u8:1+flush-179:007:55:331
835657994643,2cyclictest824819-21kworker/u8:4+events_unbound08:15:100
835657994642,3cyclictest965407-21kworker/u8:2+flush-179:009:25:050
835657994642,3cyclictest846744-21kworker/u8:1+events_unbound08:03:080
835657994642,3cyclictest846744-21kworker/u8:1+events_unbound08:03:080
835657994642,3cyclictest1111432-21kworker/u8:3+flush-179:011:45:170
835657994641,4cyclictest824819-21kworker/u8:4+events_unbound11:20:190
835670994540,3cyclictest1143269-21base6412:05:013
835670994540,3cyclictest1143269-21base6412:05:013
835670994539,5cyclictest3125725-21ThreadPoolForeg11:40:003
835670994538,5cyclictest1132486-21munin-update11:55:043
835670994538,5cyclictest1132486-21munin-update11:55:043
835670994536,7cyclictest247515-21ThreadPoolForeg08:35:343
835666994541,3cyclictest846744-21kworker/u8:1+flush-179:009:01:542
835666994541,3cyclictest824819-21kworker/u8:4+flush-179:011:13:592
835666994541,3cyclictest824819-21kworker/u8:4+flush-179:009:50:072
835664994542,2cyclictest824819-21kworker/u8:4+flush-179:009:50:201
835657994542,2cyclictest846744-21kworker/u8:1+events_unbound08:55:060
835657994541,3cyclictest914019-21kworker/u8:0+events_unbound08:53:040
835657994541,3cyclictest914019-21kworker/u8:0+events_unbound08:53:030
835657994541,3cyclictest1009049-21kworker/u8:0+events_unbound09:57:090
835670994441,2cyclictest743420-1kworker/3:1H+kblockd07:33:063
835670994439,4cyclictest914019-21kworker/u8:0+flush-179:008:27:373
835666994441,2cyclictest904060-21/usr/share/muni08:15:152
835666994441,2cyclictest824819-21kworker/u8:4+flush-179:007:25:342
835666994440,3cyclictest1090758-21kworker/u8:2+flush-179:011:35:232
835666994439,4cyclictest852139-31munin-graph07:20:562
835666994432,11cyclictest872995-21kworker/2:3+pm08:07:452
835664994440,3cyclictest1009049-21kworker/u8:0+flush-179:010:20:101
835664994434,2cyclictest3125627-21ChromeDriver00:55:191
835664994431,12cyclictest811179-1kworker/1:2H+kblockd10:32:591
835657994440,3cyclictest1105427-21kworker/u8:0+flush-179:011:29:070
835657994440,3cyclictest1105427-21kworker/u8:0+flush-179:011:29:060
835657994439,4cyclictest824819-21kworker/u8:4+flush-179:007:25:100
835657994438,4cyclictest1058918-31munin-html10:40:350
835670994339,3cyclictest824819-21kworker/u8:4+flush-179:011:15:353
835670994337,5cyclictest3125724-21ThreadPoolForeg12:10:113
835670994337,5cyclictest1100468-21munin-limits11:20:343
835670994336,4cyclictest945348-21latency_hist08:55:013
835670994336,4cyclictest945348-21latency_hist08:55:013
835666994339,3cyclictest1049198-21kworker/u8:0+flush-179:011:00:152
835666994338,4cyclictest1163797-21/usr/share/muni12:25:102
835666994337,4cyclictest1065232-21/usr/share/muni10:50:032
835664994339,3cyclictest919192-21munin-update08:30:331
835657994339,3cyclictest824819-21kworker/u8:4+flush-179:009:40:270
835657994339,3cyclictest1044033-21kworker/u8:1+flush-179:012:10:190
835657994339,3cyclictest1009049-21kworker/u8:0+events_unbound10:20:380
835657994338,4cyclictest1044033-21kworker/u8:1+events_unbound11:09:450
83567099421,40cyclictest247516-21Chrome_ChildIOT08:09:533
835666994237,4cyclictest919446-21/usr/share/muni08:30:132
835664994238,3cyclictest824819-21kworker/u8:4+flush-179:009:40:011
835664994238,3cyclictest824819-21kworker/u8:4+events_unbound09:55:191
835664994230,1cyclictest811179-1kworker/1:2H+kblockd10:11:151
835657994238,3cyclictest914019-21kworker/u8:0+events_unbound09:16:070
835657994238,3cyclictest846744-21kworker/u8:1+events_unbound08:41:110
835657994238,3cyclictest824819-21kworker/u8:4+flush-179:011:15:200
835657994238,3cyclictest824819-21kworker/u8:4+events_unbound09:31:230
835657994238,3cyclictest1044033-21kworker/u8:1+flush-179:012:15:290
835670994134,5cyclictest247516-21Chrome_ChildIOT12:15:543
835666994135,4cyclictest247516-21Chrome_ChildIOT12:20:242
835666994135,4cyclictest247516-21Chrome_ChildIOT12:20:242
835666994128,2cyclictest872995-21kworker/2:3+pm07:57:412
835666994119,21cyclictest3125728-13Compositor09:16:462
835664994138,2cyclictest811179-1kworker/1:2H+kblockd11:07:301
835664994137,3cyclictest1137493-21kworker/u8:2+flush-179:012:10:121
835664994136,4cyclictest76405-21systemd-journal10:45:011
835657994138,2cyclictest824819-21kworker/u8:4+events_unbound09:03:410
835657994138,2cyclictest76405-21systemd-journal07:38:310
835657994137,3cyclictest846744-21kworker/u8:1+events_unbound08:38:030
835657994137,3cyclictest824819-21kworker/u8:4+events_unbound07:24:260
835657994137,3cyclictest1147973-21kworker/u8:0+events_unbound12:23:240
835657994137,3cyclictest1147973-21kworker/u8:0+events_unbound12:23:240
835670994036,3cyclictest824819-21kworker/u8:4+flush-179:009:55:213
835670994033,6cyclictest3125648-13Chrome_IOThread09:45:213
835666994038,1cyclictest872995-21kworker/2:3+pm07:54:142
835666994038,1cyclictest1049887-21kworker/2:1+pm11:22:212
835666994037,2cyclictest872995-21kworker/2:3+pm08:46:502
835666994037,2cyclictest1049887-21kworker/2:1+pm12:05:342
835666994037,2cyclictest1049887-21kworker/2:1+pm12:05:342
835666994037,2cyclictest1049887-21kworker/2:1+pm11:29:402
835666994037,2cyclictest1049887-21kworker/2:1+pm11:29:402
835666994037,2cyclictest1049887-21kworker/2:1+pm10:49:322
835666994037,2cyclictest1049887-21kworker/2:1+pm10:43:512
835666994036,3cyclictest1003421-21kworker/2:0+pm10:03:092
835666994036,2cyclictest950507-21kworker/2:2+pm09:31:042
835664994037,3cyclictest1049198-21kworker/u8:0+flush-179:011:12:061
835664994037,2cyclictest835323-21kworker/u8:2+flush-179:007:10:271
835664994034,4cyclictest247560-21ThreadPoolForeg08:12:081
835657994036,3cyclictest824819-21kworker/u8:4+events_unbound10:55:000
835657994036,3cyclictest824819-21kworker/u8:4+events_unbound10:09:360
835657994036,3cyclictest1173864-21kworker/u8:3+flush-179:012:33:430
835657994035,4cyclictest857257-21kworker/u8:3+events_unbound07:42:290
835657994035,4cyclictest1044033-21kworker/u8:1+flush-179:012:01:080
835670993937,1cyclictest924359-21kworker/3:0+pm11:13:243
835670993936,2cyclictest939191-21kworker/u8:3+flush-179:009:25:153
835670993936,2cyclictest888553-21kworker/3:2+pm08:02:233
835670993936,2cyclictest888553-21kworker/3:2+pm08:02:233
835670993936,2cyclictest1260-21snmpd09:23:393
835670993935,3cyclictest924359-21kworker/3:0+pm10:14:433
835670993935,3cyclictest824819-21kworker/u8:4+flush-179:007:11:093
835670993934,4cyclictest846744-21kworker/u8:1+flush-179:008:20:093
835670993934,4cyclictest824819-21kworker/u8:4+flush-179:007:40:103
835670993932,5cyclictest1106835-21/usr/share/muni11:30:133
835666993937,1cyclictest872995-21kworker/2:3+pm08:26:562
835666993937,1cyclictest835836-21kworker/2:2+pm07:44:382
835666993937,1cyclictest835836-21kworker/2:2+pm07:13:192
835666993937,1cyclictest1049887-21kworker/2:1+pm12:38:262
835666993936,2cyclictest950507-21kworker/2:2+pm09:36:032
835666993936,2cyclictest872995-21kworker/2:3+pm08:35:352
835666993936,2cyclictest835836-21kworker/2:2+pm07:18:332
835666993936,2cyclictest1049887-21kworker/2:1+pm12:30:052
835666993936,2cyclictest1003421-21kworker/2:0+pm10:34:042
835666993935,3cyclictest1044033-21kworker/u8:1+flush-179:010:27:092
835666993935,3cyclictest1023097-21munin-limits10:05:352
835664993935,3cyclictest846744-21kworker/u8:1+flush-179:007:25:271
835657993936,2cyclictest1111432-21kworker/u8:3+events_unbound12:09:120
835657993936,2cyclictest1111432-21kworker/u8:3+events_unbound12:09:120
835657993935,3cyclictest857257-21kworker/u8:3+events_unbound07:53:550
835657993934,4cyclictest824819-21kworker/u8:4+events_unbound10:36:280
835657993934,4cyclictest824819-21kworker/u8:4+events_unbound10:10:500
835657993933,4cyclictest1049198-21kworker/u8:0+events_unbound10:58:280
835670993836,1cyclictest835450-21kworker/3:1+pm07:22:303
835670993834,3cyclictest934188-1kworker/3:2H+kblockd10:53:493
835670993834,3cyclictest934188-1kworker/3:2H+kblockd09:35:343
835670993834,2cyclictest934188-1kworker/3:2H+kblockd10:20:093
835670993830,6cyclictest1044589-21/usr/share/muni10:30:183
835670993815,22cyclictest3125726-13Chrome_ChildIOT10:37:043
83567099380,36cyclictest1253-21openvpn11:05:063
835666993837,1cyclictest872995-21kworker/2:3+pm08:44:272
835666993837,1cyclictest1049887-21kworker/2:1+pm11:51:402
835666993836,1cyclictest872995-21kworker/2:3+pm08:50:322
835666993836,1cyclictest872995-21kworker/2:3+pm08:50:322
835666993836,1cyclictest872995-21kworker/2:3+pm08:10:212
835666993836,1cyclictest1049887-21kworker/2:1+pm12:14:492
835666993836,1cyclictest1049887-21kworker/2:1+pm11:48:592
835666993835,2cyclictest835836-21kworker/2:2+pm07:30:002
835666993834,3cyclictest950507-21kworker/2:2+pm09:25:142
835664993835,2cyclictest247563-13Compositor12:03:001
835664993834,3cyclictest811179-1kworker/1:2H+kblockd07:45:301
835664993833,4cyclictest247560-21ThreadPoolForeg08:49:331
835657993836,1cyclictest903320-21kworker/0:2+pm09:23:410
835657993835,2cyclictest824819-21kworker/u8:4+flush-179:010:30:350
835657993835,2cyclictest1009049-21kworker/u8:0+events_unbound10:15:350
835657993830,6cyclictest883643-21/usr/share/muni07:55:020
835670993734,2cyclictest934188-1kworker/3:2H+kblockd10:55:563
835670993734,2cyclictest934188-1kworker/3:2H+kblockd09:43:513
835670993734,2cyclictest934188-1kworker/3:2H+kblockd09:17:353
835670993734,2cyclictest934188-1kworker/3:2H+kblockd09:09:033
835670993734,2cyclictest934188-1kworker/3:2H+kblockd08:47:443
835670993734,2cyclictest743420-1kworker/3:1H+kblockd08:33:273
835670993734,2cyclictest743420-1kworker/3:1H+kblockd08:12:333
835670993734,2cyclictest743420-1kworker/3:1H+kblockd07:51:163
835670993734,2cyclictest743420-1kworker/3:1H+kblockd07:47:233
835670993734,2cyclictest743420-1kworker/3:1H+kblockd07:37:493
835670993733,3cyclictest924359-21kworker/3:0+pm09:34:233
835670993733,2cyclictest934188-1kworker/3:2H+kblockd12:00:163
835670993733,2cyclictest934188-1kworker/3:2H+kblockd09:10:253
835670993732,4cyclictest955201-31munin-graph09:02:043
835670993732,4cyclictest1127632-21/usr/share/muni11:50:103
835666993735,1cyclictest950507-21kworker/2:2+pm09:40:522
835666993734,2cyclictest872995-21kworker/2:3+pm08:00:122
835666993734,2cyclictest872995-21kworker/2:3+pm08:00:122
835666993734,2cyclictest1049887-21kworker/2:1+pm11:55:302
835666993734,2cyclictest1049887-21kworker/2:1+pm11:55:302
835666993734,2cyclictest1003421-21kworker/2:0+pm10:21:052
835666993733,2cyclictest950507-21kworker/2:2+pm09:20:042
835664993734,3cyclictest738625-21kworker/u8:0+events_unbound07:20:081
835664993734,2cyclictest811179-1kworker/1:2H+kblockd11:40:131
835664993734,2cyclictest811179-1kworker/1:2H+kblockd10:38:401
835664993734,2cyclictest811179-1kworker/1:2H+kblockd08:36:201
835664993733,3cyclictest951586-21apt-get09:00:121
835664993733,3cyclictest811179-1kworker/1:2H+kblockd09:11:441
835664993731,4cyclictest1168703-31munin-html12:25:411
835664993724,12cyclictest3125724-21ThreadPoolForeg09:20:241
83566499370,36cyclictest3125629-21e21169fc69a4c6708:25:351
835657993734,2cyclictest857257-21kworker/u8:3+events_unbound07:45:210
835657993734,2cyclictest3125726-13Chrome_ChildIOT09:12:140
835657993733,3cyclictest1149837-21kworker/u8:4+flush-179:012:25:130
835657993733,2cyclictest3125599-21python309:06:550
83567099367,28cyclictest0-21swapper/312:23:193
83567099367,28cyclictest0-21swapper/312:23:193
835670993634,2cyclictest934188-1kworker/3:2H+kblockd09:53:463
835670993634,1cyclictest934188-1kworker/3:2H+kblockd10:01:543
835670993633,2cyclictest934188-1kworker/3:2H+kblockd12:28:553
835670993633,2cyclictest934188-1kworker/3:2H+kblockd11:25:343
835670993633,2cyclictest934188-1kworker/3:2H+kblockd11:25:333
835670993633,2cyclictest934188-1kworker/3:2H+kblockd08:59:153
835670993633,2cyclictest924359-21kworker/3:0+pm10:27:143
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